新增了便签密码登陆功能文档

src/main/.scannerwork/report-task.txt

@@ -0,0 +1,6 @@
+projectKey=myNotes
+serverUrl=http://127.0.0.1:9000
+serverVersion=9.5.0.56709
+dashboardUrl=http://127.0.0.1:9000/dashboard?id=myNotes
+ceTaskId=AYRIh5EzuqDImpFV-sUP
+ceTaskUrl=http://127.0.0.1:9000/api/ce/task?id=AYRIh5EzuqDImpFV-sUP

src/main/AndroidManifest.xml

@@ -38,6 +38,58 @@
     <application
         android:icon="@drawable/icon_app"
         android:label="@string/app_name" >
+
+        <activity
+            android:name=".ui.SplashActivity"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:theme="@style/FullscreenTheme">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <activity
+            android:name=".ui.LoginActivity"
+            android:configChanges="keyboardHidden|orientation|screenSize"
+            android:label="@string/app_name"
+            android:launchMode="singleTop"
+            android:theme="@style/NoteTheme"
+            android:windowSoftInputMode="adjustPan" >
+            <!--android:uiOptions="splitActionBarWhenNarrow"-->
+            <!--<intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>-->
+        </activity>
+
+        <activity
+            android:name=".ui.ChangingPassword"
+            android:configChanges="keyboardHidden|orientation|screenSize"
+            android:label="@string/app_name"
+            android:launchMode="singleTop"
+            android:theme="@style/NoteTheme"
+            android:windowSoftInputMode="adjustPan" >
+        </activity>
+
+        <activity
+            android:name=".ui.SettingPassword"
+            android:configChanges="keyboardHidden|orientation|screenSize"
+            android:label="@string/app_name"
+            android:launchMode="singleTop"
+            android:theme="@style/NoteTheme"
+            android:windowSoftInputMode="adjustPan" >
+        </activity>
+
+        <activity
+            android:name=".ui.DeletingPassword"
+            android:configChanges="keyboardHidden|orientation|screenSize"
+            android:label="@string/app_name"
+            android:launchMode="singleTop"
+            android:theme="@style/NoteTheme"
+            android:windowSoftInputMode="adjustPan" >
+        </activity>
+
         <activity
             android:name=".ui.NotesListActivity"
             android:configChanges="keyboardHidden|orientation|screenSize"
@@ -47,10 +99,10 @@
             android:uiOptions="splitActionBarWhenNarrow"
             android:windowSoftInputMode="adjustPan" >
 
-            <intent-filter>
+            <!--<intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
+            </intent-filter>-->
         </activity>
 
         <activity

src/main/java/net/micode/notes/data/Contact.java

@@ -36,9 +36,11 @@ public class Contact {
             + " FROM phone_lookup"
             + " WHERE min_match = '+')";
 
+    private Contact(){}
+
     public static String getContact(Context context, String phoneNumber) {
         if(sContactCache == null) {
-            sContactCache = new HashMap<String, String>();
+            sContactCache = new HashMap<>();
         }
 
         if(sContactCache.containsKey(phoneNumber)) {

src/main/java/net/micode/notes/data/Notes.java

@@ -20,6 +20,7 @@ import android.net.Uri;
 public class Notes {
     public static final String AUTHORITY = "micode_notes";
     public static final String TAG = "Notes";
+    public static final String CONTENT_ = "content://";
     public static final int TYPE_NOTE     = 0;
     public static final int TYPE_FOLDER   = 1;
     public static final int TYPE_SYSTEM   = 2;
@@ -47,6 +48,7 @@ public class Notes {
     public static final int TYPE_WIDGET_4X            = 1;
 
     public static class DataConstants {
+        private DataConstants(){}
         public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;
         public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;
     }
@@ -54,12 +56,12 @@ public class Notes {
     /**
      * Uri to query all notes and folders
      */
-    public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
+    public static final Uri CONTENT_NOTE_URI = Uri.parse(CONTENT_ + AUTHORITY + "/note");
 
     /**
      * Uri to query data
      */
-    public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
+    public static final Uri CONTENT_DATA_URI = Uri.parse(CONTENT_ + AUTHORITY + "/data");
 
     public interface NoteColumns {
         /**
@@ -206,6 +208,8 @@ public class Notes {
          */
         public static final String CONTENT = "content";
 
+        public static final String LOCATION = "location";
+
 
         /**
          * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
@@ -248,6 +252,8 @@ public class Notes {
          * Mode to indicate the text in check list mode or not
          * <P> Type: Integer 1:check list mode 0: normal mode </P>
          */
+        private TextNote(){}
+
         public static final String MODE = DATA1;
 
         public static final int MODE_CHECK_LIST = 1;
@@ -256,7 +262,7 @@ public class Notes {
 
         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
 
-        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
+        public static final Uri CONTENT_URI = Uri.parse(CONTENT_ + AUTHORITY + "/text_note");
     }
 
     public static final class CallNote implements DataColumns {
@@ -264,6 +270,9 @@ public class Notes {
          * Call date for this record
          * <P> Type: INTEGER (long) </P>
          */
+
+        private CallNote(){}
+
         public static final String CALL_DATE = DATA1;
 
         /**
@@ -276,6 +285,6 @@ public class Notes {
 
         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
 
-        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
+        public static final Uri CONTENT_URI = Uri.parse(CONTENT_ + AUTHORITY + "/call_note");
     }
 }

src/main/java/net/micode/notes/data/NotesDatabaseHelper.java

@@ -76,7 +76,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
             DataColumns.DATA2 + " INTEGER," +
             DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
             DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
-            DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
+            DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''," +
+            DataColumns.LOCATION + " TEXT NOT NULL DEFAULT ''" +
         ")";
 
     private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
@@ -328,6 +329,11 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
             oldVersion++;
         }
 
+        if (oldVersion == 5) {
+            upgradeToV6(db);
+            oldVersion++;
+        }
+
         if (reCreateTriggers) {
             reCreateNoteTableTriggers(db);
             reCreateDataTableTriggers(db);
@@ -371,4 +377,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
                 + " INTEGER NOT NULL DEFAULT 0");
     }
 
+    private void upgradeToV6(SQLiteDatabase db) {
+        db.execSQL("ALTER TABLE " + TABLE.DATA + " ADD COLUMN " + DataColumns.LOCATION
+                + "TEXT NOT NULL DEFAULT ''");
+    }
 }

src/main/java/net/micode/notes/ui/ChangingPassword.java

@@ -0,0 +1,69 @@
+package net.micode.notes.ui;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+
+import net.micode.notes.R;
+
+public class ChangingPassword extends Activity {
+    EditText OldPassword;
+    EditText NewPassword;
+    EditText AckPassword;
+    Button Acknowledged;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_change_password);
+        getWindow().setSoftInputMode(
+                WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
+                        | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
+        OldPassword=(EditText) findViewById(R.id.old_password);
+        NewPassword=(EditText) findViewById(R.id.new_password);
+        AckPassword=(EditText) findViewById(R.id.ack_password);
+        Acknowledged=(Button)findViewById(R.id.Acknowledged);
+        Acknowledged.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                String old_password = OldPassword.getText().toString();
+                String new_password = NewPassword.getText().toString();
+                String ack_password = AckPassword.getText().toString();
+                SharedPreferences pref=getSharedPreferences("user management",MODE_PRIVATE);
+                String login_password=pref.getString("password","");
+                if(old_password.equals("")==true || new_password.equals("")==true || ack_password.equals("")==true) {
+                    Toast.makeText(ChangingPassword.this, "密码不能为空", Toast.LENGTH_SHORT).show();
+                }else if (new_password.equals(ack_password) == false) {
+                    Toast.makeText(ChangingPassword.this, "新建密码与重复密码不匹配，请重新输入密码", Toast.LENGTH_SHORT).show();
+                    AckPassword.setText("");
+                }else if(old_password.equals(login_password) == false){
+                    Toast.makeText(ChangingPassword.this, "原有密码错误，请重新输入密码", Toast.LENGTH_SHORT).show();
+                    OldPassword.setText("");
+                }
+                else if (new_password.equals(ack_password) == true && old_password.equals(login_password) == true){
+                    SharedPreferences.Editor editor=getSharedPreferences("user management", MODE_PRIVATE).edit();
+                    editor.putString("password",new_password);
+                    editor.apply();
+                    Toast.makeText(ChangingPassword.this, "修改密码成功", Toast.LENGTH_SHORT).show();
+                    Intent intent=new Intent(ChangingPassword.this,NotesListActivity.class);
+                    startActivity(intent);
+                    finish();
+                }
+            }
+        });
+    }
+
+    @Override
+    public void onBackPressed() {
+        Intent intent=new Intent(ChangingPassword.this,NotesListActivity.class);
+        startActivity(intent);
+        finish();
+    }
+}
+

src/main/java/net/micode/notes/ui/DeletingPassword.java

@@ -0,0 +1,63 @@
+package net.micode.notes.ui;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+
+import net.micode.notes.R;
+
+public class DeletingPassword extends Activity {
+    EditText Dt_password;
+    Button Acknowledged;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_delete_password);
+        getWindow().setSoftInputMode(
+                WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
+                        | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
+        Dt_password=(EditText) findViewById(R.id.thepassword);
+        Acknowledged=(Button)findViewById(R.id.Dt_Acknowledged);
+        Acknowledged.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                String text02 = Dt_password.getText().toString();
+                if(text02.equals("")==true)
+                    Toast.makeText(DeletingPassword.this, "密码不能为空", Toast.LENGTH_SHORT).show();
+                SharedPreferences pref=getSharedPreferences("user management",MODE_PRIVATE);
+                String password = pref.getString("password","");
+                if(password.equals("")==false&&password.equals(text02)==true){
+                    SharedPreferences.Editor editor=getSharedPreferences("user management",
+                            MODE_PRIVATE).edit();
+                    editor.putBoolean("user",false);//false表示已经设置登录密码
+                    editor.putString("password","");
+                    editor.apply();
+
+                    Toast.makeText(DeletingPassword.this, "已经删除登录密码", Toast.LENGTH_SHORT).show();
+                    Intent intent=new Intent(DeletingPassword.this,NotesListActivity.class);
+                    startActivity(intent);
+                    finish();
+                }
+                else{
+                    Toast.makeText(DeletingPassword.this, "密码错误", Toast.LENGTH_SHORT).show();
+                    Dt_password.setText("");//把密码框内输入过的错误密码清空
+                }
+            }
+        });
+    }
+
+    @Override
+    public void onBackPressed() {
+        Intent intent=new Intent(DeletingPassword.this,NotesListActivity.class);
+        startActivity(intent);
+        finish();
+    }
+}
+

src/main/java/net/micode/notes/ui/LoginActivity.java

@@ -0,0 +1,57 @@
+package net.micode.notes.ui;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+
+import net.micode.notes.R;
+
+public class LoginActivity extends Activity {
+
+    EditText lg_password;
+    Button lg_login;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        SharedPreferences pref=getSharedPreferences("user management",MODE_PRIVATE);
+        boolean User_boolean = pref.getBoolean("user",false);//获取用户是否设置了密码
+        if(!User_boolean) //User_boolean = false时，（没有设置密码），直接跳转到便签主界面
+        {
+            Intent intent=new Intent(LoginActivity.this,NotesListActivity.class);
+            startActivity(intent);
+            finish();
+        }
+
+        setContentView(R.layout.activity_login);
+        getWindow().setSoftInputMode(
+                WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE
+                        | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
+        lg_password=(EditText) findViewById(R.id.lg_password);
+        lg_login=(Button)findViewById(R.id.login);
+        lg_login.setOnClickListener(new View.OnClickListener() {
+                                        @Override
+                                        public void onClick(View v) {
+                                            SharedPreferences pref=getSharedPreferences("user management",MODE_PRIVATE);
+                                            String password=pref.getString("password","");
+                                            if(password.equals("")==false&&password.equals(lg_password.getText().toString())==true){
+                                                Intent intent=new Intent(LoginActivity.this,NotesListActivity.class);
+                                                startActivity(intent);
+                                                finish();
+                                            }
+                                            else{
+                                                Toast.makeText(LoginActivity.this, "密码错误", Toast.LENGTH_SHORT).show();
+                                                lg_password.setText("");//把密码框内输入过的错误密码清空
+                                            }
+                                        }
+                                    }
+        );
+
+    }
+}

src/main/java/net/micode/notes/ui/NoteEditActivity.java

@@ -103,6 +103,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.Vector;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -135,6 +136,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     }
 
     private static final Map<Integer, Integer> sBgSelectorBtnsMap = new HashMap<Integer, Integer>();
+
     static {
         sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW);
         sBgSelectorBtnsMap.put(R.id.iv_bg_red, ResourceParser.RED);
@@ -144,6 +146,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     }
 
     private static final Map<Integer, Integer> sBgSelectorSelectionMap = new HashMap<Integer, Integer>();
+
     static {
         sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select);
         sBgSelectorSelectionMap.put(ResourceParser.RED, R.id.iv_bg_red_select);
@@ -153,6 +156,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     }
 
     private static final Map<Integer, Integer> sFontSizeBtnsMap = new HashMap<Integer, Integer>();
+
     static {
         sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE);
         sFontSizeBtnsMap.put(R.id.ll_font_small, ResourceParser.TEXT_SMALL);
@@ -161,6 +165,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     }
 
     private static final Map<Integer, Integer> sFontSelectorSelectionMap = new HashMap<Integer, Integer>();
+
     static {
         sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select);
         sFontSelectorSelectionMap.put(ResourceParser.TEXT_SMALL, R.id.iv_small_select);
@@ -188,7 +193,6 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     private int mFontSizeId;
 
 
-
     private static final String PREFERENCE_FONT_SIZE = "pref_font_size";
 
     private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10;
@@ -200,7 +204,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     public static final int CHOOSE_PHOTO = 2;
     private final int PHOTO_SUCCESS = 3;
     private final int CAMERA_SUCCESS = 4;
-//    TextToSpeech tts;
+    //    TextToSpeech tts;
     TextView num_word;
     TextView location;
     public static final int LOCATION_CODE = 301;
@@ -210,6 +214,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     private AlertDialog alertDialog2;
     private CharSequence restore_translate = null;
 
+    private boolean mIsRvoke = false;
 
 
     private LinearLayout mEditTextList;
@@ -244,9 +249,6 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     }
 
 
-
-
-
     /**
      * Current activity may be killed when the memory is low. Once it is killed, for another time
      * user load this activity, we should restore the former state
@@ -300,7 +302,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
             getWindow().setSoftInputMode(
                     WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN
                             | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
-        } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
+        } else if (TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
             // New note
             long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0);
             int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID,
@@ -400,11 +402,11 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         }
     }
 
-    private void showTopHeader(){
+    private void showTopHeader() {
         mNoteHeaderHolder.tvToptext.setText(R.string.menu_set_top);
-        if(mWorkingNote.getTopId()==1){
+        if (mWorkingNote.getTopId() == 1) {
             mNoteHeaderHolder.tvToptext.setVisibility(View.VISIBLE);
-        } else{
+        } else {
             mNoteHeaderHolder.tvToptext.setVisibility(View.GONE);
         }
     }
@@ -447,7 +449,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     }
 
     private boolean inRangeOfView(View view, MotionEvent ev) {
-        int []location = new int[2];
+        int[] location = new int[2];
         view.getLocationOnScreen(location);
         int x = location[0];
         int y = location[1];
@@ -468,8 +470,28 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         mNoteHeaderHolder.tvAlertDate = (TextView) findViewById(R.id.tv_alert_date);
         mNoteHeaderHolder.tvToptext = (TextView) findViewById(R.id.tv_set_top);
         mNoteHeaderHolder.ibSetBgColor = (ImageView) findViewById(R.id.btn_set_bg_color);
+
         mNoteHeaderHolder.ibSetBgColor.setOnClickListener(this);
         mNoteEditor = (EditText) findViewById(R.id.note_edit_view);
+        mNoteEditor.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {//文本更改后
+                if (!mIsRvoke) {
+                    saveMyChanged();
+                } else {
+                    mIsRvoke = false;
+                }
+            }
+        });
         mNoteEditorPanel = findViewById(R.id.sv_note_edit);
         mNoteBgColorSelector = findViewById(R.id.note_bg_color_selector);
         for (int id : sBgSelectorBtnsMap.keySet()) {
@@ -481,7 +503,8 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         for (int id : sFontSizeBtnsMap.keySet()) {
             View view = findViewById(id);
             view.setOnClickListener(this);
-        };
+        }
+        ;
         mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
         mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);
         /**
@@ -489,7 +512,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
          *          * The id may larger than the length of resources, in this case,
          *          * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
          */
-        if(mFontSizeId >= TextAppearanceResources.getResourcesSize()) {
+        if (mFontSizeId >= TextAppearanceResources.getResourcesSize()) {
             mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE;
         }
         mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list);
@@ -498,12 +521,13 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         speech_sum();
         local_sel();
         translate();
+
     }
 
     @Override
     protected void onPause() {
         super.onPause();
-        if(saveNote()) {
+        if (saveNote()) {
             Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length());
         }
         clearSettingState();
@@ -511,7 +535,6 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     }
 
 
-
     private void updateWidget() {
         Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
         if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) {
@@ -523,7 +546,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
             return;
         }
 
-        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] {
+        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[]{
                 mWorkingNote.getWidgetId()
         });
 
@@ -560,7 +583,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
 
     @Override
     public void onBackPressed() {
-        if(clearSettingState()) {
+        if (clearSettingState()) {
             return;
         }
 
@@ -598,9 +621,9 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         } else {
             getMenuInflater().inflate(R.menu.note_edit, menu);
         }
-        if (mWorkingNote.getTopId() == 1 ) {
+        if (mWorkingNote.getTopId() == 1) {
             menu.findItem(R.id.menu_set_top).setVisible(false);
-        } else if(mWorkingNote.getTopId() == 0){
+        } else if (mWorkingNote.getTopId() == 0) {
             menu.findItem(R.id.menu_cancel_top).setVisible(false);
         }
         if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
@@ -622,11 +645,14 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
             case R.id.menu_new_note:
                 createNewNote();
                 break;
+            case R.id.menu_revoke:
+                doRevoke();
+                break;
             case R.id.menu_set_top:
-                mWorkingNote.setTop((mWorkingNote.getTopId())==1 ? "0" : "1");
+                mWorkingNote.setTop((mWorkingNote.getTopId()) == 1 ? "0" : "1");
                 break;
             case R.id.menu_cancel_top:
-                mWorkingNote.setTop((mWorkingNote.getTopId())==0 ? "1" : "0");
+                mWorkingNote.setTop((mWorkingNote.getTopId()) == 0 ? "1" : "0");
                 break;
             case R.id.menu_delete:
                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
@@ -667,6 +693,21 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
             case R.id.menu_font_select:
                 showSingleAlertDiglog();
                 break;
+            case R.id.menu_count_word://数字统计
+                AlertDialog.Builder builder1 = new AlertDialog.Builder(this);//对话框对象
+                builder1.setIcon(android.R.drawable.ic_dialog_alert);//对话框图标
+                TextView content = (TextView) findViewById(R.id.note_edit_view);
+                int c = content.length();
+                builder1.setMessage("带符号字数总和统计为：" + c);
+                builder1.setPositiveButton(android.R.string.ok,
+                        new DialogInterface.OnClickListener() {
+                            public void onClick(DialogInterface dialog, int which) {
+                                finish();
+                            }
+                        });//确定按钮
+                builder1.setNegativeButton(android.R.string.cancel, null);//取消按钮
+                builder1.show();//对话框启动
+                break;
             default:
                 break;
         }
@@ -677,7 +718,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis());
         d.setOnDateTimeSetListener(new OnDateTimeSetListener() {
             public void OnDateTimeSet(AlertDialog dialog, long date) {
-                mWorkingNote.setAlertDate(date	, true);
+                mWorkingNote.setAlertDate(date, true);
             }
         });
         d.show();
@@ -732,7 +773,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
     }
 
-    public void onTopChanged(String Top){
+    public void onTopChanged(String Top) {
         /**
          * User could set clock to an unsaved note, so before setting the
          * alert clock, we should save the note first
@@ -766,7 +807,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
             PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
             AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE));
             showAlertHeader();
-            if(!set) {
+            if (!set) {
                 alarmManager.cancel(pendingIntent);
             } else {
                 alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent);
@@ -799,7 +840,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
 
         mEditTextList.removeViewAt(index);
         NoteEditText edit = null;
-        if(index == 0) {
+        if (index == 0) {
             edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById(
                     R.id.et_edit_text);
         } else {
@@ -816,7 +857,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         /**
          * Should not happen, check for debug
          */
-        if(index > mEditTextList.getChildCount()) {
+        if (index > mEditTextList.getChildCount()) {
             Log.e(TAG, "Index out of mEditTextList boundrary, should not happen");
         }
 
@@ -836,7 +877,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         String[] items = text.split("\n");
         int index = 0;
         for (String item : items) {
-            if(!TextUtils.isEmpty(item)) {
+            if (!TextUtils.isEmpty(item)) {
                 mEditTextList.addView(getListItem(item, index));
                 index++;
             }
@@ -901,7 +942,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
             Log.e(TAG, "Wrong index, should not happen");
             return;
         }
-        if(hasText) {
+        if (hasText) {
             mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.VISIBLE);
         } else {
             mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.GONE);
@@ -1012,158 +1053,155 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     }
 
 
+    private String getLocation() {
+        //1.获取位置管理器
+        String city = null;
+        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
 
 
+        //2.获取位置提供器，GPS或是NetWork
+        List<String> providers = locationManager.getProviders(true);
 
-        private String getLocation(){
-            //1.获取位置管理器
-            String city = null;
-            locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
-
-            //2.获取位置提供器，GPS或是NetWork
-            List<String> providers = locationManager.getProviders(true);
-
-            if (providers.contains(LocationManager.GPS_PROVIDER)) {
-                //如果是GPS
-                locationProvider = LocationManager.GPS_PROVIDER;
-                Log.v("TAG", "定位方式GPS");
-            } else if (providers.contains(LocationManager.NETWORK_PROVIDER)) {
-                //如果是Network
-                locationProvider = LocationManager.NETWORK_PROVIDER;
-                Log.v("TAG", "定位方式Network");
-            }else {
-                Toast.makeText(this, "没有可用的位置提供器", Toast.LENGTH_SHORT).show();
-                return null;
-            }
+        if (providers.contains(LocationManager.GPS_PROVIDER)) {
+            //如果是GPS
+            locationProvider = LocationManager.GPS_PROVIDER;
+            Log.v("TAG", "定位方式GPS");
+        } else if (providers.contains(LocationManager.NETWORK_PROVIDER)) {
+            //如果是Network
+            locationProvider = LocationManager.NETWORK_PROVIDER;
+            Log.v("TAG", "定位方式Network");
+        } else {
+            Toast.makeText(this, "没有可用的位置提供器", Toast.LENGTH_SHORT).show();
+            return null;
+        }
 
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-                //获取权限（如果没有开启权限，会弹出对话框，询问是否开启权限）
-                if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
-                        != PackageManager.PERMISSION_GRANTED ||
-                        ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION)
-                                != PackageManager.PERMISSION_GRANTED) {
-                    //请求权限
-                    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION,
-                            Manifest.permission.ACCESS_COARSE_LOCATION}, LOCATION_CODE);
-                } else {
-                    //3.获取上次的位置，一般第一次运行，此值为null
-                    Location location = locationManager.getLastKnownLocation(locationProvider);
-                    if (location!=null){
-                        Toast.makeText(this, location.getLongitude() + " " +
-                                location.getLatitude() + "",Toast.LENGTH_SHORT).show();
-                        Log.v("TAG", "获取上次的位置-经纬度："+location.getLongitude()+"   "+location.getLatitude());
-                        city=getAddress(location);
-
-                    }else{
-                        //监视地理位置变化，第二个和第三个参数分别为更新的最短时间minTime和最短距离minDistace
-                        locationManager.requestLocationUpdates(locationProvider, 3000, 1,locationListener);
-                    }
-                }
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            //获取权限（如果没有开启权限，会弹出对话框，询问是否开启权限）
+            if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
+                    != PackageManager.PERMISSION_GRANTED ||
+                    ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION)
+                            != PackageManager.PERMISSION_GRANTED) {
+                //请求权限
+                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION,
+                        Manifest.permission.ACCESS_COARSE_LOCATION}, LOCATION_CODE);
             } else {
+                //3.获取上次的位置，一般第一次运行，此值为null
                 Location location = locationManager.getLastKnownLocation(locationProvider);
-                if (location!=null){
+                if (location != null) {
                     Toast.makeText(this, location.getLongitude() + " " +
                             location.getLatitude() + "", Toast.LENGTH_SHORT).show();
-                    Log.v("TAG", "获取上次的位置-经纬度："+location.getLongitude()+"   "+location.getLatitude());
-                    city=getAddress(location);
+                    Log.v("TAG", "获取上次的位置-经纬度：" + location.getLongitude() + "   " + location.getLatitude());
+                    city = getAddress(location);
 
-                }else{
+                } else {
                     //监视地理位置变化，第二个和第三个参数分别为更新的最短时间minTime和最短距离minDistace
-                    locationManager.requestLocationUpdates(locationProvider, 3000, 1,locationListener);
+                    locationManager.requestLocationUpdates(locationProvider, 3000, 1, locationListener);
                 }
             }
-            return city;
-        }
+        } else {
+            Location location = locationManager.getLastKnownLocation(locationProvider);
+            if (location != null) {
+                Toast.makeText(this, location.getLongitude() + " " +
+                        location.getLatitude() + "", Toast.LENGTH_SHORT).show();
+                Log.v("TAG", "获取上次的位置-经纬度：" + location.getLongitude() + "   " + location.getLatitude());
+                city = getAddress(location);
 
-        public LocationListener locationListener = new LocationListener() {
-            // Provider的状态在可用、暂时不可用和无服务三个状态直接切换时触发此函数
-            @Override
-            public void onStatusChanged(String provider, int status, Bundle extras) {
-            }
-            // Provider被enable时触发此函数，比如GPS被打开
-            @Override
-            public void onProviderEnabled(String provider) {
-            }
-            // Provider被disable时触发此函数，比如GPS被关闭
-            @Override
-            public void onProviderDisabled(String provider) {
-            }
-            //当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发
-            @Override
-            public void onLocationChanged(Location location) {
-                if (location != null) {
-                    //如果位置发生变化，重新显示地理位置经纬度
-                    Toast.makeText(NoteEditActivity.this, location.getLongitude() + " " +
-                            location.getLatitude() + "", Toast.LENGTH_SHORT).show();
-                    Log.v("TAG", "监视地理位置变化-经纬度："+location.getLongitude()+"   "+location.getLatitude());
-                }
+            } else {
+                //监视地理位置变化，第二个和第三个参数分别为更新的最短时间minTime和最短距离minDistace
+                locationManager.requestLocationUpdates(locationProvider, 3000, 1, locationListener);
             }
-        };
+        }
+        return city;
+    }
 
+    public LocationListener locationListener = new LocationListener() {
+        // Provider的状态在可用、暂时不可用和无服务三个状态直接切换时触发此函数
         @Override
-        public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
-            switch (requestCode) {
-                case LOCATION_CODE:
-                    if(grantResults.length > 0 && grantResults[0] == getPackageManager().PERMISSION_GRANTED
-                            && grantResults[1] == PackageManager.PERMISSION_GRANTED) {
-                        Toast.makeText(this, "申请权限", Toast.LENGTH_LONG).show();
-                        try {
-                            List<String> providers = locationManager.getProviders(true);
-                            if (providers.contains(LocationManager.NETWORK_PROVIDER)) {
-                                //如果是Network
-                                locationProvider = LocationManager.NETWORK_PROVIDER;
-
-                            }else if (providers.contains(LocationManager.GPS_PROVIDER)) {
-                                //如果是GPS
-                                locationProvider = LocationManager.GPS_PROVIDER;
-                            }
-                            Location location = locationManager.getLastKnownLocation(locationProvider);
-                            if (location!=null){
-                                Toast.makeText(this, location.getLongitude() + " " +
-                                        location.getLatitude() + "", Toast.LENGTH_SHORT).show();
-                                Log.v("TAG", "获取上次的位置-经纬度："+location.getLongitude()+"   "+location.getLatitude());
-                            }else{
-                                // 监视地理位置变化，第二个和第三个参数分别为更新的最短时间minTime和最短距离minDistace
-                                locationManager.requestLocationUpdates(locationProvider, 0, 0,locationListener);
-                            }
+        public void onStatusChanged(String provider, int status, Bundle extras) {
+        }
 
-                        }catch (SecurityException e){
-                            e.printStackTrace();
-                        }
-                    } else {
-                        Toast.makeText(this, "缺少权限", Toast.LENGTH_LONG).show();
-                        finish();
-                    }
-                    break;
-            }
+        // Provider被enable时触发此函数，比如GPS被打开
+        @Override
+        public void onProviderEnabled(String provider) {
         }
 
-        //获取地址信息:城市、街道等信息
-        private String getAddress(Location location) {
-            List<Address> result = null;
-            String city = null;
-            try {
-                if (location != null) {
-                    Geocoder gc = new Geocoder(this, Locale.getDefault());
-                    result = gc.getFromLocation(location.getLatitude(),
-                            location.getLongitude(), 1);
-                    city = result.get(0).getAddressLine(0).toString();
-                    Toast.makeText(this, "获取地址信息："+city, Toast.LENGTH_LONG).show();
-                    Log.v("TAG", "获取地址信息："+city);
-                }
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-            Log.e(TAG, city);
-            return city;
+        // Provider被disable时触发此函数，比如GPS被关闭
+        @Override
+        public void onProviderDisabled(String provider) {
         }
 
+        //当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发
+        @Override
+        public void onLocationChanged(Location location) {
+            if (location != null) {
+                //如果位置发生变化，重新显示地理位置经纬度
+                Toast.makeText(NoteEditActivity.this, location.getLongitude() + " " +
+                        location.getLatitude() + "", Toast.LENGTH_SHORT).show();
+                Log.v("TAG", "监视地理位置变化-经纬度：" + location.getLongitude() + "   " + location.getLatitude());
+            }
+        }
+    };
 
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        switch (requestCode) {
+            case LOCATION_CODE:
+                if (grantResults.length > 0 && grantResults[0] == getPackageManager().PERMISSION_GRANTED
+                        && grantResults[1] == PackageManager.PERMISSION_GRANTED) {
+                    Toast.makeText(this, "申请权限", Toast.LENGTH_LONG).show();
+                    try {
+                        List<String> providers = locationManager.getProviders(true);
+                        if (providers.contains(LocationManager.NETWORK_PROVIDER)) {
+                            //如果是Network
+                            locationProvider = LocationManager.NETWORK_PROVIDER;
+
+                        } else if (providers.contains(LocationManager.GPS_PROVIDER)) {
+                            //如果是GPS
+                            locationProvider = LocationManager.GPS_PROVIDER;
+                        }
+                        Location location = locationManager.getLastKnownLocation(locationProvider);
+                        if (location != null) {
+                            Toast.makeText(this, location.getLongitude() + " " +
+                                    location.getLatitude() + "", Toast.LENGTH_SHORT).show();
+                            Log.v("TAG", "获取上次的位置-经纬度：" + location.getLongitude() + "   " + location.getLatitude());
+                        } else {
+                            // 监视地理位置变化，第二个和第三个参数分别为更新的最短时间minTime和最短距离minDistace
+                            locationManager.requestLocationUpdates(locationProvider, 0, 0, locationListener);
+                        }
 
+                    } catch (SecurityException e) {
+                        e.printStackTrace();
+                    }
+                } else {
+                    Toast.makeText(this, "缺少权限", Toast.LENGTH_LONG).show();
+                    finish();
+                }
+                break;
+        }
+    }
 
+    //获取地址信息:城市、街道等信息
+    private String getAddress(Location location) {
+        List<Address> result = null;
+        String city = null;
+        try {
+            if (location != null) {
+                Geocoder gc = new Geocoder(this, Locale.getDefault());
+                result = gc.getFromLocation(location.getLatitude(),
+                        location.getLongitude(), 1);
+                city = result.get(0).getAddressLine(0).toString();
+                Toast.makeText(this, "获取地址信息：" + city, Toast.LENGTH_LONG).show();
+                Log.v("TAG", "获取地址信息：" + city);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        Log.e(TAG, city);
+        return city;
+    }
 
 
-    private void local_sel(){
+    private void local_sel() {
         final Button get_local = findViewById(R.id.location);
         get_local.setOnClickListener(new OnClickListener() {
             @Override
@@ -1188,9 +1226,9 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
                         String city = null;
                         city = getLocation();
 
-                        if(city == null) {
+                        if (city == null) {
                             get_local.setText("点击获得地理信息");
-                        } else{
+                        } else {
                             get_local.setText(city);
                         }
                     }
@@ -1212,7 +1250,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         });
     }
 
-    public void speech_sum(){
+    public void speech_sum() {
         EditText editable = findViewById(R.id.note_edit_view);
         //Toast.makeText(NoteEditActivity.this, editable.getText().toString(), Toast.LENGTH_SHORT).show();
         final Button speak = findViewById(R.id.iatBtn);
@@ -1228,26 +1266,28 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
             @Override
             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
             }
+
             @Override
             public void onTextChanged(CharSequence s, int start, int before, int count) {
                 tmp[0] = cutOfimage(operateText(s.toString())).length();
                 TextView number_word = findViewById(R.id.num_word);
-                number_word.setText("字符数："+ tmp[0]);
+                number_word.setText("字符数：" + tmp[0]);
                 final String temp = cutOfimage(s.toString());
                 speak.setOnClickListener(new OnClickListener() {
                     @Override
                     public void onClick(View v) {
-                        tts[0].speak(temp.toString(),TextToSpeech.QUEUE_FLUSH,null);
+                        tts[0].speak(temp.toString(), TextToSpeech.QUEUE_FLUSH, null);
                     }
                 });
             }
+
             @Override
             public void afterTextChanged(Editable s) {
             }
         });
     }
 
-    public String operateText(String str){
+    public String operateText(String str) {
         String dest = "";
         Pattern p = Pattern.compile("\\s*|t|r|n");
         Matcher m = p.matcher(str);
@@ -1255,40 +1295,39 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         return dest;
     }
 
-    public String cutOfimage(String str){
-            String dest = str;
-            int index1 = dest.indexOf("[local]");
-            int index2 = dest.indexOf("[/local]");
-            while(index1 != -1 && index2 != -1){
-                dest = dest.substring(0,index1) + dest.substring(index2+8);
-                index1 = dest.indexOf("[local]");
-                index2 = dest.indexOf("[/local]");
-            }
-            return dest;
+    public String cutOfimage(String str) {
+        String dest = str;
+        int index1 = dest.indexOf("[local]");
+        int index2 = dest.indexOf("[/local]");
+        while (index1 != -1 && index2 != -1) {
+            dest = dest.substring(0, index1) + dest.substring(index2 + 8);
+            index1 = dest.indexOf("[local]");
+            index2 = dest.indexOf("[/local]");
+        }
+        return dest;
     }
 
 
-
     private void convertToImage() {
         NoteEditText noteEditText = (NoteEditText) findViewById(R.id.note_edit_view);
         Editable editable = noteEditText.getText();
         String noteText = editable.toString();
         int length = editable.length();
-        for(int i = 0; i < length; i++) {
-            for(int j = i; j < length; j++) {
-                String img_fragment = noteText.substring(i, j+1);
-                if(img_fragment.length() > 15 && img_fragment.endsWith("[/local]") && img_fragment.startsWith("[local]")){
+        for (int i = 0; i < length; i++) {
+            for (int j = i; j < length; j++) {
+                String img_fragment = noteText.substring(i, j + 1);
+                if (img_fragment.length() > 15 && img_fragment.endsWith("[/local]") && img_fragment.startsWith("[local]")) {
                     int limit = 7;
-                    int len = img_fragment.length()-15;
-                    String path = img_fragment.substring(limit,limit+len);
+                    int len = img_fragment.length() - 15;
+                    String path = img_fragment.substring(limit, limit + len);
                     Bitmap bitmap = null;
-                    Log.d(TAG, "图片的路径是："+path);
+                    Log.d(TAG, "图片的路径是：" + path);
                     try {
                         bitmap = BitmapFactory.decodeFile(path);
                     } catch (Exception e) {
                         e.printStackTrace();
                     }
-                    if(bitmap!=null){
+                    if (bitmap != null) {
                         Log.d(TAG, "图片不为null");
                         ImageSpan imageSpan = new ImageSpan(NoteEditActivity.this, bitmap);
                         String ss = "[local]" + path + "[/local]";
@@ -1296,7 +1335,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
                         spannableString.setSpan(imageSpan, 0, ss.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                         Log.d(TAG, "Create spannable string success!");
                         Editable edit_text = noteEditText.getEditableText();
-                        edit_text.delete(i,i+len+15);
+                        edit_text.delete(i, i + len + 15);
                         edit_text.insert(i, spannableString);
                     }
                 }
@@ -1305,7 +1344,6 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     }
 
 
-
     @RequiresApi(api = Build.VERSION_CODES.KITKAT)
     protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
         super.onActivityResult(requestCode, resultCode, intent);
@@ -1321,11 +1359,11 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
                     e.printStackTrace();
                 }
 
-                if(bitmap != null){
+                if (bitmap != null) {
                     Log.d(TAG, "onActivityResult: bitmap is not null");
                     ImageSpan imageSpan = new ImageSpan(NoteEditActivity.this, bitmap);
-                    String path = getPath(this,originalUri);
-                    String img_fragment= "[local]" + path + "[/local]";
+                    String path = getPath(this, originalUri);
+                    String img_fragment = "[local]" + path + "[/local]";
                     SpannableString spannableString = new SpannableString(img_fragment);
                     spannableString.setSpan(imageSpan, 0, img_fragment.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                     NoteEditText e = (NoteEditText) findViewById(R.id.note_edit_view);
@@ -1337,13 +1375,13 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
                     ContentResolver contentResolver = getContentResolver();
                     ContentValues contentValues = new ContentValues();
                     final long id = mWorkingNote.getNoteId();
-                    contentValues.put("snippet",mWorkingNote.getContent());
-                    contentResolver.update(Uri.parse("content://micode_notes/note"), contentValues,"_id=?",new String[]{""+id});
+                    contentValues.put("snippet", mWorkingNote.getContent());
+                    contentResolver.update(Uri.parse("content://micode_notes/note"), contentValues, "_id=?", new String[]{"" + id});
                     ContentValues contentValues1 = new ContentValues();
-                    contentValues1.put("content",mWorkingNote.getContent());
-                    contentResolver.update(Uri.parse("content://micode_notes/data"), contentValues1,"mime_type=? and note_id=?", new String[]{"vnd.android.cursor.item/text_note",""+id});
+                    contentValues1.put("content", mWorkingNote.getContent());
+                    contentResolver.update(Uri.parse("content://micode_notes/data"), contentValues1, "mime_type=? and note_id=?", new String[]{"vnd.android.cursor.item/text_note", "" + id});
 
-                }else{
+                } else {
                     Toast.makeText(NoteEditActivity.this, "获取图片失败", Toast.LENGTH_SHORT).show();
                 }
                 break;
@@ -1409,8 +1447,8 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     }
 
 
-    public void showSingleAlertDiglog(){
-        final String[] items = {"默认-普通","默认-非衬线","默认-衬线","默认-等宽","仿宋","黑体","楷体","姚体","隶书","行楷","新魏","中宋"};
+    public void showSingleAlertDiglog() {
+        final String[] items = {"默认-普通", "默认-非衬线", "默认-衬线", "默认-等宽", "仿宋", "黑体", "楷体", "姚体", "隶书", "行楷", "新魏", "中宋"};
         AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);
         alertBuilder.setTitle("选择字体");
         alertBuilder.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {
@@ -1465,7 +1503,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
                 Toast.makeText(NoteEditActivity.this, items[i], Toast.LENGTH_SHORT).show();
             }
         });
-        alertBuilder.setPositiveButton("确定",new DialogInterface.OnClickListener() {
+        alertBuilder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
             @Override
             public void onClick(DialogInterface dialogInterface, int i) {
                 alertDialog2.dismiss();
@@ -1484,7 +1522,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         alertDialog2.show();
     }
 
-    public void translate(){
+    public void translate() {
         final EditText editable = findViewById(R.id.note_edit_view);
         final Button get_local = findViewById(R.id.translate);
         get_local.setOnClickListener(new OnClickListener() {
@@ -1525,9 +1563,9 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
                 trans3.setOnClickListener(new OnClickListener() {
                     @Override
                     public void onClick(View v) {
-                        if(restore_translate == null || restore_translate.toString().equals(editable.getText().toString())){
+                        if (restore_translate == null || restore_translate.toString().equals(editable.getText().toString())) {
                             Toast.makeText(NoteEditActivity.this, "无可还原内容", Toast.LENGTH_SHORT).show();
-                        }else {
+                        } else {
                             editable.setText(restore_translate);
                             Toast.makeText(NoteEditActivity.this, "已还原", Toast.LENGTH_SHORT).show();
                         }
@@ -1541,7 +1579,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     public void translate_z2u() {
         final EditText editable = findViewById(R.id.note_edit_view);
         String word = editable.getText().toString();
-        word = word.replaceAll("\\n","//");
+        word = word.replaceAll("\\n", "//");
         String from = "auto";
         String to = "en";
         String appid = "20221021001406789";
@@ -1555,7 +1593,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
                 .baseUrl("https://fanyi-api.baidu.com/api/trans/vip/")
                 .addConverterFactory(GsonConverterFactory.create())
                 .build();
-        BaiduTranslateService baiduTranslateService =retrofitBaidu.create(BaiduTranslateService.class);
+        BaiduTranslateService baiduTranslateService = retrofitBaidu.create(BaiduTranslateService.class);
         retrofit2.Call<RespondBean> call = baiduTranslateService.translate(word, from, to, appid, salt, sign);
         call.enqueue(new Callback<RespondBean>() {
             @Override
@@ -1566,6 +1604,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
                 editable.setText(result);
                 Log.d(TAG, "中译英结果" + result);
             }
+
             @Override
             public void onFailure(retrofit2.Call<RespondBean> call, Throwable t) {
                 Log.d(TAG, "onResponse: 请求失败 " + t);
@@ -1576,7 +1615,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
     public void translate_u2z() {
         final EditText editable = findViewById(R.id.note_edit_view);
         String word = editable.getText().toString();
-        word = word.replaceAll("\\n","//");
+        word = word.replaceAll("\\n", "//");
         Log.d(TAG, word);
         String from = "auto";
         String to = "zh";
@@ -1591,7 +1630,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
                 .baseUrl("https://fanyi-api.baidu.com/api/trans/vip/")
                 .addConverterFactory(GsonConverterFactory.create())
                 .build();
-        BaiduTranslateService baiduTranslateService =retrofitBaidu.create(BaiduTranslateService.class);
+        BaiduTranslateService baiduTranslateService = retrofitBaidu.create(BaiduTranslateService.class);
         retrofit2.Call<RespondBean> call = baiduTranslateService.translate(word, from, to, appid, salt, sign);
         call.enqueue(new Callback<RespondBean>() {
             @Override
@@ -1602,6 +1641,7 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
                 editable.setText(result);
                 Log.d(TAG, "中译英结果" + result);
             }
+
             @Override
             public void onFailure(retrofit2.Call<RespondBean> call, Throwable t) {
                 Log.d(TAG, "onResponse: 请求失败 " + t);
@@ -1609,9 +1649,41 @@ public class NoteEditActivity<关闭> extends AppCompatActivity implements OnCli
         });
     }
 
+    private static final int MAX_TIME_OF_RVOKE_TIME = 100;
+    private int MAX_OF_RVOKE_TIME = 100;
+    private Vector<SpannableString> mChanged = new Vector<SpannableString>(MAX_OF_RVOKE_TIME);
 
+    private void saveMyChanged() {
+        SpannableString text = new SpannableString(mNoteEditor.getText());//用getText方法获取每次编辑的内容
+        if (mChanged.size() >= MAX_TIME_OF_RVOKE_TIME) {//如果栈中的数据大于最大撤销次数，就把第一次修改的内容删除
+            mChanged.removeElementAt(0);
+        }
+        mChanged.add(text);//然后把本次修改的内容加入栈中
+    }
 
-
-}
-
-
+    private void doRevoke() {
+        int size = mChanged.size();//获取当前栈大小
+        AlertDialog.Builder dialog = new AlertDialog.Builder(this);//创建一个alertdialog窗口
+        dialog.setTitle(R.string.tips_of_revoke);//设置title信息
+        dialog.setCancelable(true);//设置为可取消
+        dialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {//只需要设置一个OK键即可
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+            }
+        });
+        mIsRvoke = true;//把是否已执行撤销的标记设置为true
+        if (size <= 1) {//如果栈中元素过少，打印提示信息
+            dialog.setMessage(R.string.have_not_input_anything);//提示用户您还没有输入任何信息
+            dialog.show();//显示当前alertdialog
+            return;
+        } else {
+            mNoteEditor.setText((CharSequence) mChanged.elementAt(size - 2));//在textview中设置撤销的内容
+            mNoteEditor.setSelection(mNoteEditor.length());
+            mChanged.removeElementAt(size - 1);//删除元素
+            if (size == 2) {
+                dialog.setMessage(R.string.can_not_revoke);//如果只有一次操作，那么提示用户不能再撤销了
+                dialog.show();//显示当前alertdialog
+            }
+        }
+    }
+}

src/main/java/net/micode/notes/ui/NotesListActivity.java

@@ -16,6 +16,7 @@
 
 package net.micode.notes.ui;
 
+import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.support.v7.app.AppCompatActivity;
 import android.app.AlertDialog;
@@ -80,6 +81,8 @@ import java.io.InputStreamReader;
 import java.util.HashSet;
 
 public class NotesListActivity extends AppCompatActivity implements OnClickListener, OnItemLongClickListener {
+    public static int secret_mode = 0;
+
     private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0;
 
     private static final int FOLDER_LIST_QUERY_TOKEN      = 1;
@@ -416,10 +419,34 @@ public class NotesListActivity extends AppCompatActivity implements OnClickListe
     private void startAsyncNotesListQuery() {
         String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION
                 : NORMAL_SELECTION;
-        mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
-                Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] {
-                        String.valueOf(mCurrentFolderId)
-                }, NoteColumns.TOP+ " DESC,"+ NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
+        String str1 = "0123456789";
+        String[] PROJECTION = new String[]{  //定义一个新的PROJECTION数组，只换掉SNIPPET
+                NoteColumns.ID,
+                NoteColumns.ALERTED_DATE,
+                NoteColumns.BG_COLOR_ID,
+                NoteColumns.CREATED_DATE,
+                NoteColumns.HAS_ATTACHMENT,
+                NoteColumns.MODIFIED_DATE,
+                NoteColumns.NOTES_COUNT,
+                NoteColumns.PARENT_ID,
+//                    NoteColumns.SNIPPET,
+                str1,
+                NoteColumns.TYPE,
+                NoteColumns.WIDGET_ID,
+                NoteColumns.WIDGET_TYPE,
+                NoteColumns.TOP,
+        };
+        if (secret_mode == 0) {
+            mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
+                    Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[]{
+                            String.valueOf(mCurrentFolderId)
+                    }, NoteColumns.TOP + " DESC," + NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
+        } else {
+            mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
+                    Notes.CONTENT_NOTE_URI, PROJECTION, selection, new String[]{
+                            String.valueOf(mCurrentFolderId)
+                    }, NoteColumns.TOP + " DESC," + NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
+        }
     }
 
     private final class BackgroundQueryHandler extends AsyncQueryHandler {
@@ -452,6 +479,7 @@ public class NotesListActivity extends AppCompatActivity implements OnClickListe
         final FoldersListAdapter adapter = new FoldersListAdapter(this, cursor);
         builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
 
+            @SuppressLint("StringFormatInvalid")
             public void onClick(DialogInterface dialog, int which) {
                 DataUtils.batchMoveToFolder(mContentResolver,
                         mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which));
@@ -612,6 +640,7 @@ public class NotesListActivity extends AppCompatActivity implements OnClickListe
         final Dialog dialog = builder.setView(view).show();
         final Button positive = (Button)dialog.findViewById(android.R.id.button1);
         positive.setOnClickListener(new OnClickListener() {
+            @SuppressLint("StringFormatInvalid")
             public void onClick(View v) {
                 hideSoftInput(etName);
                 String name = etName.getText().toString();
@@ -817,6 +846,61 @@ public class NotesListActivity extends AppCompatActivity implements OnClickListe
             case R.id.menu_search:
                 onSearchRequested();
                 break;
+            case R.id.LoginSetting: {  //设置登录密码功能
+                SharedPreferences pref=getSharedPreferences("user management",MODE_PRIVATE);
+                String password=pref.getString("password","");
+                if(password.equals(""))//没有设置密码
+                    set_the_password();
+                else if(!password.equals(""))//已经设置密码
+                    change_the_password();
+                break;
+            }
+            case R.id.delete_password:{
+                delete_the_password();
+                break;
+            }
+            case R.id.menu_secret: {    //进入私密模式
+                secret_mode = 1;
+                AlertDialog.Builder dialog = new AlertDialog.Builder(NotesListActivity.this);
+                dialog.setTitle("重要提醒");
+                dialog.setMessage("您确认进入私密模式吗？");
+                dialog.setCancelable(false);
+                dialog.setPositiveButton("确认", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        startAsyncNotesListQuery();
+                        Toast.makeText(NotesListActivity.this,"您已进入私密模式",Toast.LENGTH_SHORT).show();
+                    }
+                });
+                dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which){}
+                });
+                dialog.show();
+                startAsyncNotesListQuery();
+                Toast.makeText(this,"您已进入私密模式",Toast.LENGTH_SHORT).show();
+                break;
+            }
+            case R.id.menu_quit_secret:{    //退出私密模式
+                secret_mode = 0;
+                AlertDialog.Builder dialog = new AlertDialog.Builder(NotesListActivity.this);
+                dialog.setTitle("重要提醒");
+                dialog.setMessage("您确认退出私密模式吗？");
+                dialog.setCancelable(false);
+                dialog.setPositiveButton("确认", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        startAsyncNotesListQuery();
+                        Toast.makeText(NotesListActivity.this,"您已退出私密模式",Toast.LENGTH_SHORT).show();
+                    }
+                });
+                dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which){}
+                });
+                dialog.show();
+                break;
+            }
             default:
                 break;
         }
@@ -956,4 +1040,20 @@ public class NotesListActivity extends AppCompatActivity implements OnClickListe
         }
         return false;
     }
+
+    private void set_the_password() {
+        Intent intent=new Intent(NotesListActivity.this,SettingPassword.class);
+        startActivity(intent);
+        finish();
+    }
+    private void change_the_password() {
+        Intent intent=new Intent(NotesListActivity.this,ChangingPassword.class);
+        startActivity(intent);
+        finish();
+    }
+    private void delete_the_password() {
+        Intent intent=new Intent(NotesListActivity.this,DeletingPassword.class);
+        startActivity(intent);
+        finish();
+    }
 }

src/main/java/net/micode/notes/ui/SettingPassword.java

@@ -0,0 +1,67 @@
+package net.micode.notes.ui;
+
+import static android.content.Context.MODE_PRIVATE;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+
+import net.micode.notes.R;
+
+public class SettingPassword extends Activity {
+    EditText password;
+    EditText password_ack;
+    Button acknowledge;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_set_loginpassword);
+        getWindow().setSoftInputMode(
+                WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
+                        | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
+        password=(EditText) findViewById(R.id.password);
+        password_ack=(EditText) findViewById(R.id.password_ack);
+        acknowledge=(Button)findViewById(R.id.acknowledge);
+        acknowledge.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                String text02 = password.getText().toString();
+                String text03 = password_ack.getText().toString();
+                if(text02.equals("")==true) {
+                    Toast.makeText(SettingPassword.this, "密码不能为空", Toast.LENGTH_SHORT).show();
+                }else if (text02.equals(text03) == false) {
+                    Toast.makeText(SettingPassword.this, "密码不匹配，请重新输入密码", Toast.LENGTH_SHORT).show();
+                    password_ack.setText("");
+                }else if (text02.equals(text03) == true){
+                    SharedPreferences.Editor editor=getSharedPreferences("user management",
+                            MODE_PRIVATE).edit();
+                    editor.putBoolean("user",true);//true表示已经设置登录密码
+                    editor.putString("password",text02);
+                    editor.apply();
+                    Log.d("RegisterLoginPassword","password is "+text02);
+                    Toast.makeText(SettingPassword.this, "设置密码成功", Toast.LENGTH_SHORT).show();
+                    Intent intent=new Intent(SettingPassword.this,NotesListActivity.class);
+                    startActivity(intent);
+                    finish();
+                }
+
+            }
+        });
+    }
+
+    @Override
+    public void onBackPressed() {
+        Intent intent=new Intent(SettingPassword.this,NotesListActivity.class);
+        startActivity(intent);
+        finish();
+    }
+
+}

src/main/java/net/micode/notes/ui/SplashActivity.java

@@ -0,0 +1,31 @@
+package net.micode.notes.ui;
+import android.annotation.SuppressLint;
+import android.content.Intent;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.WindowInsets;
+import net.micode.notes.R;
+public class SplashActivity extends AppCompatActivity {
+    Handler mHandler=new Handler();
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState); //加载启动界面
+        setContentView(R.layout.activity_splash); //加载启动
+// 当计时结束时，跳转至NotesListActivity
+        mHandler.postDelayed(new Runnable() {
+
+            @Override
+            public void run() {
+                Intent intent=new Intent();
+                intent.setClass(SplashActivity.this, LoginActivity.class);
+                startActivity(intent);
+                finish(); //销毁欢迎页面
+            }}, 2000); // 2 秒后跳转}
+    }
+}

src/main/java/net/micode/notes/ui/translate_demo/RespondBean.java

@@ -2,7 +2,7 @@ package net.micode.notes.ui.translate_demo;
 
 import java.util.List;
 
-public class RespondBean {
+    public class RespondBean {
 
     /**
      * from : zh