除了泛读，全部最后

src/main/AndroidManifest.xml

@@ -22,7 +22,7 @@
         <activity
             android:name=".ui.NotesListActivity"
             android:configChanges="keyboardHidden|orientation|screenSize"
-            android:label="Notes"
+            android:label="@string/app_name"
             android:launchMode="singleTop"
             android:theme="@style/Theme.AppCompat.Light.DarkActionBar"
             android:uiOptions="splitActionBarWhenNarrow"
@@ -43,15 +43,8 @@
             android:name=".ui.NoteEditActivity"
             android:configChanges="keyboardHidden|orientation|screenSize"
             android:launchMode="singleTop"
-            android:theme="@style/NoteTheme">
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-
-                <category android:name="android.intent.category.DEFAULT" />
+            android:theme="@style/Theme.AppCompat.Light.DarkActionBar">
 
-                <data android:mimeType="vnd.android.cursor.item/text_note" />
-                <data android:mimeType="vnd.android.cursor.item/call_note" />
-            </intent-filter>
             <intent-filter>
                 <action android:name="android.intent.action.INSERT_OR_EDIT" />
 

src/main/java/net/micode/notes/model/WorkingNote.java

@@ -38,7 +38,7 @@ public class WorkingNote {
     // Note Id
     private long mNoteId;
     // Note content
-    private String mContent;
+    public String mContent;
     // Note mode
     private int mMode;
 

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

@@ -31,6 +31,7 @@ import android.database.Cursor;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.support.v7.app.AppCompatActivity;
 import android.text.Editable;
 import android.text.TextUtils;
 import android.text.TextWatcher;
@@ -78,7 +79,7 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.util.HashSet;
 
-public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener {
+public class NotesListActivity extends AppCompatActivity implements OnClickListener, OnItemLongClickListener {
     //首页背景变换
     private int mode = -1;
     private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0;
@@ -126,6 +127,8 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     public static final int NOTES_LISTVIEW_SCROLL_RATE = 30;
 
     private NoteItemData mFocusNoteDataItem;
+    //表示是否在私密模式
+    public static int secret_mode = 0;
 
     private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?";
 
@@ -415,11 +418,36 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     private void startAsyncNotesListQuery() {
         String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION
                 : NORMAL_SELECTION;
+        if(secret_mode == 0) {
             mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
-                Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] {
+                    Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[]{
                             String.valueOf(mCurrentFolderId)
                     }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
         }
+        else{
+            String str1 = "444";
+            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,
+            };
+            mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
+                    Notes.CONTENT_NOTE_URI, PROJECTION, selection, new String[]{
+                            String.valueOf(mCurrentFolderId)
+                    }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
+
+        }
+    }
 
     private final class BackgroundQueryHandler extends AsyncQueryHandler {
         public BackgroundQueryHandler(ContentResolver contentResolver) {
@@ -775,7 +803,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         } else {
             Log.e(TAG, "Wrong state:" + mState);
         }
-
+        if(secret_mode == 1)
+            menu.findItem(R.id.menu_secret).setVisible(false);
+        else
+            menu.findItem(R.id.menu_quit_secret).setVisible(false);
         if(mode==-1){//decade
             menu.findItem(R.id.menu_decade).setVisible(false);
         }
@@ -823,6 +854,53 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
             else if(item.getItemId()==R.id.menu_search) {
                 onSearchRequested();
             }
+            else if(item.getItemId()==R.id.menu_secret)
+            {//进入私密模式
+
+                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) {
+                        Toast.makeText(NotesListActivity.this,"您已进入私密模式",Toast.LENGTH_SHORT).show();
+                        secret_mode = 1;
+                        startAsyncNotesListQuery();
+                    }
+                });
+                dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which){}
+                });
+                dialog.show();
+                startAsyncNotesListQuery();
+
+            }
+            else if(item.getItemId()==R.id.menu_quit_secret)
+            {  //退出私密模式
+
+                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) {
+
+                        secret_mode = 0;
+                        Toast.makeText(NotesListActivity.this,"您已退出私密模式",Toast.LENGTH_SHORT).show();
+                        startAsyncNotesListQuery();
+                    }
+                });
+                dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which){}
+                });
+                dialog.show();
+
+            }
 
         return true;
     }

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

@@ -0,0 +1,42 @@
+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); //加载启动图片
+        // 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, NotesListActivity.class);
+                startActivity(intent);
+                finish(); //销毁
+            }
+        }, 3000); // 3秒后跳转
+    }
+}

src/main/res/layout/activity_splash.xml

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="?attr/fullscreenBackgroundColor"
+    android:theme="@style/ThemeOverlay.Notesmaster.FullscreenContainer"
+    tools:context=".ui.SplashActivity">
+
+    <!-- The primary full-screen view. This can be replaced with whatever view
+         is needed to present your content, e.g. VideoView, SurfaceView,
+         TextureView, etc. -->
+    <TextView
+        android:id="@+id/fullscreen_content"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@drawable/splash"
+        android:gravity="center"
+        android:keepScreenOn="true"
+        android:text="@string/dummy_content"
+        android:textColor="?attr/fullscreenTextColor"
+        android:textSize="50sp"
+        android:textStyle="bold" />
+
+    <!-- This FrameLayout insets its children based on system windows using
+         android:fitsSystemWindows. -->
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fitsSystemWindows="true">
+
+        <LinearLayout
+            android:id="@+id/fullscreen_content_controls"
+            style="@style/Widget.Theme.Notesmaster.ButtonBar.Fullscreen"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_gravity="bottom|center_horizontal"
+            android:orientation="horizontal"
+            tools:ignore="UselessParent">
+
+            <Button
+                android:id="@+id/dummy_button"
+                style="?android:attr/buttonBarButtonStyle"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="@string/dummy_button" />
+
+        </LinearLayout>
+
+<!--        <TextView
+            android:id="@+id/fullscreen_content"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:background="@drawable/splash"
+            android:gravity="center"
+            android:keepScreenOn="true"
+            android:text="@string/dummy_content"
+            android:textSize="50sp"
+            android:textStyle="bold"/>           -->
+    </FrameLayout>
+
+</FrameLayout>

src/main/res/layout/note_edit.xml

@@ -15,7 +15,7 @@
      limitations under the License.
 -->
 
-<FrameLayout
+<FrameLayout xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     android:background="@drawable/list_background"
@@ -61,6 +61,7 @@
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
                 android:background="@drawable/bg_btn_set_color" />
+
         </LinearLayout>
 
         <LinearLayout
@@ -396,5 +397,17 @@
                 android:layout_marginBottom="-7dip"
                 android:src="@drawable/selected" />
         </FrameLayout>
+
     </LinearLayout>
+    <ImageButton
+        android:id="@+id/add_img_btn"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="7dp"
+        android:layout_marginTop="600dp"
+        android:layout_marginBottom="7dp"
+        android:background="@android:drawable/ic_menu_camera"
+        android:visibility="visible"
+        tools:visibility="visible" />
+
 </FrameLayout>

src/main/res/menu/note_list.xml

@@ -44,4 +44,12 @@
     <item
         android:id="@+id/menu_zio"
         android:title="@string/menu_zio"/>
+
+    <item
+        android:id="@+id/menu_secret"
+        android:title="@string/menu_secret"/>
+
+    <item
+        android:id="@+id/menu_quit_secret"
+        android:title="@string/menu_quit_secret"/>
 </menu>

src/main/res/menu/sub_folder.xml

@@ -21,4 +21,11 @@
     <item
         android:id="@+id/menu_new_note"
         android:title="@string/notelist_menu_new"/>
+    <item
+        android:id="@+id/menu_secret"
+        android:title="@string/menu_secret"/>
+
+    <item
+        android:id="@+id/menu_quit_secret"
+        android:title="@string/menu_quit_secret"/>
 </menu>

src/main/res/values-night/themes.xml

@@ -0,0 +1,7 @@
+<resources>
+
+    <style name="ThemeOverlay.Notesmaster.FullscreenContainer" parent="">
+        <item name="fullscreenBackgroundColor">@color/light_blue_900</item>
+        <item name="fullscreenTextColor">@color/light_blue_A400</item>
+    </style>
+</resources>

src/main/res/values/attrs.xml

@@ -0,0 +1,6 @@
+<resources>
+    <declare-styleable name="FullscreenAttrs">
+        <attr name="fullscreenBackgroundColor" format="color" />
+        <attr name="fullscreenTextColor" format="color" />
+    </declare-styleable>
+</resources>

src/main/res/values/strings.xml

@@ -40,6 +40,8 @@
     <!-- notes list string -->
 
     <!--首页背景切换-->
+    <string name="menu_secret">secret model</string>
+    <string name="menu_quit_secret">quit secret model</string>
     <string name="menu_decade">Background: decade</string>
     <string name="menu_zio">Background: zio</string>
 

src/main/res/values/themes.xml

@@ -0,0 +1,16 @@
+<resources>
+
+    <style name="Theme.Notesmaster" parent="Theme.AppCompat.Light" />
+
+    <style name="Theme.Notesmaster.Fullscreen" parent="Theme.Notesmaster">
+        <item name="android:actionBarStyle">@style/Widget.Theme.Notesmaster.ActionBar.Fullscreen
+        </item>
+        <item name="android:windowActionBarOverlay">true</item>
+        <item name="android:windowBackground">@null</item>
+    </style>
+
+    <style name="ThemeOverlay.Notesmaster.FullscreenContainer" parent="">
+        <item name="fullscreenBackgroundColor">@color/light_blue_600</item>
+        <item name="fullscreenTextColor">@color/light_blue_A200</item>
+    </style>
+</resources>