/* * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package net.micode.notes.ui; import android.app.AlarmManager; import android.app.AlertDialog; import android.app.PendingIntent; import android.app.SearchManager; import android.appwidget.AppWidgetManager; import android.content.ContentResolver; import android.content.ContentUris; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Paint; import android.media.MediaPlayer; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.Environment; import android.preference.PreferenceManager; import android.provider.DocumentsContract; import android.provider.MediaStore; import android.support.v7.app.AppCompatActivity; import android.text.Editable; import android.text.Layout; import android.text.Spannable; import android.text.SpannableString; import android.text.TextUtils; import android.text.TextWatcher; import android.text.format.DateUtils; import android.text.style.AlignmentSpan; import android.text.style.BackgroundColorSpan; import android.text.style.ClickableSpan; import android.text.style.ImageSpan; import android.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.WindowManager; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.EditText; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast; import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.TextNote; import net.micode.notes.data.NotesDatabaseHelper; import net.micode.notes.model.WorkingNote; import net.micode.notes.model.WorkingNote.NoteSettingChangedListener; import net.micode.notes.tool.DataUtils; import net.micode.notes.tool.ResourceParser; import net.micode.notes.tool.ResourceParser.TextAppearanceResources; import net.micode.notes.ui.DateTimePickerDialog.OnDateTimeSetListener; import net.micode.notes.ui.NoteEditText.OnTextViewChangeListener; import net.micode.notes.widget.NoteWidgetProvider_2x; import net.micode.notes.widget.NoteWidgetProvider_4x; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.nio.charset.Charset; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.util.ArrayList; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.regex.Matcher; import java.util.regex.Pattern; //该类主要是针对标签的编辑 //继承了系统内部许多和监听有关的类 public class NoteEditActivity extends AppCompatActivity implements OnClickListener, NoteSettingChangedListener, OnTextViewChangeListener { private int mode; private android.media.MediaRecorder mMediaRecorder = new android.media.MediaRecorder(); private class HeadViewHolder { public TextView tvModified; public ImageView ivAlertIcon; public TextView tvAlertDate; public ImageView ibSetBgColor; } //Map实现数据管理 private static final Map sBgSelectorBtnsMap = new HashMap(); static { sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW); sBgSelectorBtnsMap.put(R.id.iv_bg_red, ResourceParser.RED); sBgSelectorBtnsMap.put(R.id.iv_bg_blue, ResourceParser.BLUE); sBgSelectorBtnsMap.put(R.id.iv_bg_green, ResourceParser.GREEN); sBgSelectorBtnsMap.put(R.id.iv_bg_white, ResourceParser.WHITE); } private static final Map sBgSelectorSelectionMap = new HashMap(); static { sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select); sBgSelectorSelectionMap.put(ResourceParser.RED, R.id.iv_bg_red_select); sBgSelectorSelectionMap.put(ResourceParser.BLUE, R.id.iv_bg_blue_select); sBgSelectorSelectionMap.put(ResourceParser.GREEN, R.id.iv_bg_green_select); sBgSelectorSelectionMap.put(ResourceParser.WHITE, R.id.iv_bg_white_select); } private static final Map sFontSizeBtnsMap = new HashMap(); static { sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE); sFontSizeBtnsMap.put(R.id.ll_font_small, ResourceParser.TEXT_SMALL); sFontSizeBtnsMap.put(R.id.ll_font_normal, ResourceParser.TEXT_MEDIUM); sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER); } private static final Map sFontSelectorSelectionMap = new HashMap(); static { sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select); sFontSelectorSelectionMap.put(ResourceParser.TEXT_SMALL, R.id.iv_small_select); sFontSelectorSelectionMap.put(ResourceParser.TEXT_MEDIUM, R.id.iv_medium_select); sFontSelectorSelectionMap.put(ResourceParser.TEXT_SUPER, R.id.iv_super_select); } private static final String TAG = "NoteEditActivity"; //私有化一个界面操作mHeadViewPanel，对表头的操作 private HeadViewHolder mNoteHeaderHolder; private View mHeadViewPanel; private View mNoteBgColorSelector; //私有化一个界面操作mFontSizeSelector，对标签字体的操作 private View mFontSizeSelector; //声明编辑控件，对文本操作 private EditText mNoteEditor; //私有化一个界面操作mNoteEditorPanel，文本编辑的控制板 private View mNoteEditorPanel; //对模板WorkingNote的初始化 private WorkingNote mWorkingNote; //私有化SharedPreferences的数据存储方式 //它的本质是基于XML文件存储key-value键值对数据 private SharedPreferences mSharedPrefs; private int mFontSizeId; private static final String PREFERENCE_FONT_SIZE = "pref_font_size"; private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10; public static final String TAG_CHECKED = String.valueOf('\u221A'); public static final String TAG_UNCHECKED = String.valueOf('\u25A1'); private LinearLayout mEditTextList; private String mUserQuery; private Pattern mPattern; private final int PHOTO_REQUEST = 1;//请求码 private static final int RECORD_REQUEST = 1987;//录音程序请求码 private NoteEditText editText; private TextView textView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.note_edit); if (savedInstanceState == null && !initActivityState(getIntent())) { finish(); return; } initResources(); //在Activity后实现的点击图标,但是为了目录导航栏的统一,使用了AppCompatActivity的目录功能 // //根据id获取添加图片按钮 // final ImageButton add_img_btn = (ImageButton) findViewById(R.id.add_img_btn); // //为点击图片按钮设置监听器 // add_img_btn.setOnClickListener(new View.OnClickListener() { // @Override // public void onClick(View view) { // Log.d(TAG, "onClick: click add image button"); // //ACTION_GET_CONTENT: 允许用户选择特殊种类的数据，并返回（特殊种类的数据：照一张相片或录一段音） // Intent loadImage = new Intent(Intent.ACTION_GET_CONTENT); // //Category属性用于指定当前动作（Action）被执行的环境. // //CATEGORY_OPENABLE; 用来指示一个ACTION_GET_CONTENT的intent // loadImage.addCategory(Intent.CATEGORY_OPENABLE); // loadImage.setType("image/*"); // startActivityForResult(loadImage, PHOTO_REQUEST); // } // }); editText = findViewById(R.id.note_edit_view); textView = findViewById(R.id.text_num); // 添加文本改变监听器 editText.addTextChangedListener(new TextWatcher() { int currentLength = 0; @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { textView.setText("字数：" + currentLength); } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { String processedText = removeImagesAndLinks(editText.getText().toString()); currentLength = processedText.length(); } @Override public void afterTextChanged(Editable s) { textView.setText("字数：" + currentLength); } }); //添加一键删除的功能键 Button clearButton = findViewById(R.id.clearButton); // 假设你的清屏按钮的 id 是 "clearButton" clearButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { editText.setText(""); // 清空文本内容 } }); } private String removeImagesAndLinks(String text) { // 剔除标签 text = text.replaceAll("]*>", ""); // 剔除链接 text = text.replaceAll("]*>(.*?)", ""); // 剔除图片路径名称字符 text = text.replaceAll("\\[local\\].*?\\[/local\\]", ""); // 剔除换行符和空格 text = text.replaceAll("\\s", ""); return text; // StringBuffer stringBuffer = new StringBuffer(text); // // 剔除标签 // // // 剔除链接 // // int Flag1 = -1; // int Flag2 = -1; // do {//不计入表示图片的字符 // Flag1 = stringBuffer.indexOf("[local]"); // Flag2 = stringBuffer.indexOf("[/local]"); // if (Flag1 != -1 && Flag2 != -1) { // stringBuffer = stringBuffer.replace(Flag1, Flag2+1, ""); // } // } while (Flag1 != -1 && Flag2 != -1); // do {//不计入换行字符 // Flag1 = stringBuffer.indexOf("\n"); // if (Flag1 != -1){ // stringBuffer = stringBuffer.replace(Flag1, Flag1+1, ""); // } // } while (Flag1 != -1); // do {//不计入空格字符 // Flag1 = stringBuffer.indexOf(" "); // if (Flag1 != -1) { // stringBuffer = stringBuffer.replace(Flag1, Flag1+1, ""); // } // } while (Flag1 != -1); // return stringBuffer.toString(); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.note_edit, menu); return true; } /** * 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 */ @Override protected void onRestoreInstanceState(Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); if (savedInstanceState != null && savedInstanceState.containsKey(Intent.EXTRA_UID)) { Intent intent = new Intent(Intent.ACTION_VIEW); intent.putExtra(Intent.EXTRA_UID, savedInstanceState.getLong(Intent.EXTRA_UID)); if (!initActivityState(intent)) { finish(); return; } Log.d(TAG, "Restoring from killed activity"); }//为防止内存不足时程序的终止，在这里有一个保存现场的函数 } private boolean initActivityState(Intent intent) { /** * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id, * then jump to the NotesListActivity */ mWorkingNote = null; if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) { long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0); mUserQuery = ""; /** * Starting from the searched result */ if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) { noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY)); mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY); } if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) { Intent jump = new Intent(this, NotesListActivity.class); startActivity(jump); showToast(R.string.error_note_not_exist); finish(); return false; } else { mWorkingNote = WorkingNote.load(this, noteId); if (mWorkingNote == null) { Log.e(TAG, "load note failed with note id" + noteId); finish(); return false; } } 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())) { // New note long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0); int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); int widgetType = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, Notes.TYPE_WIDGET_INVALIDE); int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, ResourceParser.getDefaultBgId(this)); // Parse call-record note String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER); long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0); if (callDate != 0 && phoneNumber != null) { if (TextUtils.isEmpty(phoneNumber)) { Log.w(TAG, "The call record number is null"); } long noteId = 0; if ((noteId = DataUtils.getNoteIdByPhoneNumberAndCallDate(getContentResolver(), phoneNumber, callDate)) > 0) { mWorkingNote = WorkingNote.load(this, noteId); if (mWorkingNote == null) { Log.e(TAG, "load call note failed with note id" + noteId); finish(); return false; } } else { mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, bgResId); mWorkingNote.convertToCallNote(phoneNumber, callDate); } } else { mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, bgResId); } getWindow().setSoftInputMode( WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE); } //重点是这个判断条件,通过输入的字符进行展示 else if(TextUtils.equals(Intent.ACTION_SEARCH, intent.getAction())) //点击搜索按钮响应 { String querystring = intent.getStringExtra(SearchManager.QUERY); //获取搜索框内的字符串 NotesDatabaseHelper dbhelper = new NotesDatabaseHelper(this); List list = dbhelper.dosearch(querystring); //完善判断逻辑，减少异常处理状态 if(list.isEmpty()){ Toast.makeText(NoteEditActivity.this, "搜索结果为空", Toast.LENGTH_SHORT).show(); return false; } else { // 打印查询结果 for (String result : list) { System.out.println(result); } // 创建包含查询结果的Intent Intent showResultIntent = new Intent(NoteEditActivity.this, ShowResultActivity.class); showResultIntent.putStringArrayListExtra("searchResult", new ArrayList<>(list)); // 启动ShowResultActivity来展示查询结果 startActivity(showResultIntent); return false; } } else { Log.e(TAG, "Intent not specified action, should not support"); finish(); return false; } mWorkingNote.setOnSettingStatusChangedListener(this); return true; } @Override protected void onResume() { super.onResume(); initNoteScreen(); } //设置外观 private void initNoteScreen() { mNoteEditor.setTextAppearance(this, TextAppearanceResources .getTexAppearanceResource(mFontSizeId)); if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { switchToListMode(mWorkingNote.getContent()); } else { mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); mNoteEditor.setSelection(mNoteEditor.getText().length()); } for (Integer id : sBgSelectorSelectionMap.keySet()) { findViewById(sBgSelectorSelectionMap.get(id)).setVisibility(View.GONE); } mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId()); mNoteHeaderHolder.tvModified.setText(DateUtils.formatDateTime(this, mWorkingNote.getModifiedDate(), DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_NUMERIC_DATE | DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_YEAR)); /** * TODO: Add the menu for setting alert. Currently disable it because the DateTimePicker * is not ready */ showAlertHeader(); //!注意这里需要将有图片的位置转换图片格式 convertToImage(); } //设置闹钟提醒 private void showAlertHeader() { if (mWorkingNote.hasClockAlert()) { long time = System.currentTimeMillis(); if (time > mWorkingNote.getAlertDate()) { mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired); } //如果系统时间大于了闹钟设置的时间，那么闹钟失效 else { mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString( mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS)); } mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE); mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE); } else { mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE); mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE); }; } private void convertToImage() { NoteEditText noteEditText = findViewById(R.id.note_edit_view); Editable editable = noteEditText.getEditableText(); String noteText = editable.toString(); int length = editable.length(); int cursorPositionBeforeInsert = noteEditText.getSelectionStart(); // 在光标位置插入换行符 noteEditText.setSelection(length); boolean inserted = false; 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); Bitmap bitmap = BitmapFactory.decodeFile(path); if (bitmap != null) { int desiredHeight = 2000; int originalWidth = bitmap.getWidth(); int originalHeight = bitmap.getHeight(); int desiredWidth = (originalWidth * desiredHeight) / originalHeight; Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, desiredWidth, desiredHeight, false); ImageSpan imageSpan = new ImageSpan(this, scaledBitmap); String ss = "[local]" + path + "[/local]"; SpannableString spannableString = new SpannableString(ss); spannableString.setSpan(new AlignmentSpan.Standard(Layout.Alignment.ALIGN_CENTER), 0, ss.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); // 设置居中对齐 spannableString.setSpan(imageSpan, 0, ss.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); // 添加ClickableSpan，使得点击图片末尾的光标可以和图片对齐 ClickableSpan clickableSpan = new ClickableSpan() { @Override public void onClick(View view) { int selectionEnd = noteEditText.getSelectionEnd(); if (selectionEnd == cursorPositionBeforeInsert) { noteEditText.setSelection(cursorPositionBeforeInsert + 1); } } }; spannableString.setSpan(clickableSpan, ss.length(), ss.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); editable.replace(i, i + len + 15, spannableString); inserted = true; noteEditText.setSelection(cursorPositionBeforeInsert); ClickableSpan[] spans = editable.getSpans(cursorPositionBeforeInsert, cursorPositionBeforeInsert, ClickableSpan.class); if (spans != null && spans.length > 0) { for (ClickableSpan span : spans) { editable.removeSpan(span); } } } } } } if (inserted) { editable.append("\n"); // 在插入图片后为NoteEditText设置触摸事件监听器 noteEditText.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { int action = event.getAction(); if (action == MotionEvent.ACTION_DOWN) { int offset = noteEditText.getOffsetForPosition(event.getX(), event.getY()); ImageSpan[] imageSpans = editable.getSpans(0, editable.length(), ImageSpan.class); for (ImageSpan span : imageSpans) { int start = editable.getSpanStart(span); int end = editable.getSpanEnd(span); if (offset >= start && offset <= end) { // 如果光标位于图片所在行，返回true，表示消费了该事件 return true; } } } return false; } }); } } @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); initActivityState(intent); } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); //在创建一个新的标签时，先在数据库中匹配 //如果不存在，那么先在数据库中存储 /** * For new note without note id, we should firstly save it to * generate a id. If the editing note is not worth saving, there * is no id which is equivalent to create new note */ if (!mWorkingNote.existInDatabase()) { saveNote(); } //在创建一个新的标签时，先在数据库中匹配 //如果不存在，那么先在数据库中存储 outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId()); Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState"); } @Override public boolean dispatchTouchEvent(MotionEvent ev) { if (mNoteBgColorSelector.getVisibility() == View.VISIBLE && !inRangeOfView(mNoteBgColorSelector, ev)) { mNoteBgColorSelector.setVisibility(View.GONE); return true; } if (mFontSizeSelector.getVisibility() == View.VISIBLE && !inRangeOfView(mFontSizeSelector, ev)) { mFontSizeSelector.setVisibility(View.GONE); return true; } return super.dispatchTouchEvent(ev); } //对屏幕触控的坐标范围进行操作 private boolean inRangeOfView(View view, MotionEvent ev) { int []location = new int[2]; view.getLocationOnScreen(location); int x = location[0]; int y = location[1]; if (ev.getX() < x || ev.getX() > (x + view.getWidth()) || ev.getY() < y || ev.getY() > (y + view.getHeight())) { return false; } return true; } private void initResources() { mHeadViewPanel = findViewById(R.id.note_title); mNoteHeaderHolder = new HeadViewHolder(); mNoteHeaderHolder.tvModified = (TextView) findViewById(R.id.tv_modified_date); mNoteHeaderHolder.ivAlertIcon = (ImageView) findViewById(R.id.iv_alert_icon); mNoteHeaderHolder.tvAlertDate = (TextView) findViewById(R.id.tv_alert_date); mNoteHeaderHolder.ibSetBgColor = (ImageView) findViewById(R.id.btn_set_bg_color); mNoteHeaderHolder.ibSetBgColor.setOnClickListener(this); mNoteEditor = (EditText) findViewById(R.id.note_edit_view); mNoteEditorPanel = findViewById(R.id.sv_note_edit); mNoteBgColorSelector = findViewById(R.id.note_bg_color_selector); for (int id : sBgSelectorBtnsMap.keySet()) { ImageView iv = (ImageView) findViewById(id); iv.setOnClickListener(this); } mFontSizeSelector = findViewById(R.id.font_size_selector); 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); /** * HACKME: Fix bug of store the resource id in shared preference. * The id may larger than the length of resources, in this case, * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE} */ if(mFontSizeId >= TextAppearanceResources.getResourcesSize()) { mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE; } mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list); } @Override protected void onPause() { super.onPause(); if(saveNote()) { Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length()); } clearSettingState(); } //和桌面小工具的同步 private void updateWidget() { Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) { intent.setClass(this, NoteWidgetProvider_2x.class); } else if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_4X) { intent.setClass(this, NoteWidgetProvider_4x.class); } else { Log.e(TAG, "Unspported widget type"); return; } intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { mWorkingNote.getWidgetId() }); sendBroadcast(intent); setResult(RESULT_OK, intent); } public void onClick(View v) { int id = v.getId(); if (id == R.id.btn_set_bg_color) { mNoteBgColorSelector.setVisibility(View.VISIBLE); findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( View.VISIBLE); } else if (sBgSelectorBtnsMap.containsKey(id)) { findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( View.GONE); mWorkingNote.setBgColorId(sBgSelectorBtnsMap.get(id)); mNoteBgColorSelector.setVisibility(View.GONE); } else if (sFontSizeBtnsMap.containsKey(id)) { findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.GONE); mFontSizeId = sFontSizeBtnsMap.get(id); mSharedPrefs.edit().putInt(PREFERENCE_FONT_SIZE, mFontSizeId).commit(); findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE); if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { getWorkingText(); switchToListMode(mWorkingNote.getContent()); } else { mNoteEditor.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId)); } mFontSizeSelector.setVisibility(View.GONE); } } @Override public void onBackPressed() { if(clearSettingState()) { return; } saveNote(); super.onBackPressed(); } private boolean clearSettingState() { if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) { mNoteBgColorSelector.setVisibility(View.GONE); return true; } else if (mFontSizeSelector.getVisibility() == View.VISIBLE) { mFontSizeSelector.setVisibility(View.GONE); return true; } return false; } public void onBackgroundColorChanged() { findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( View.VISIBLE); mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId()); mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); } @Override public boolean onPrepareOptionsMenu(Menu menu) { if (isFinishing()) { return true; } clearSettingState(); menu.clear(); if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) { getMenuInflater().inflate(R.menu.call_note_edit, menu); } else { getMenuInflater().inflate(R.menu.note_edit, menu); } if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_normal_mode); } else { menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_list_mode); } if (mWorkingNote.hasClockAlert()) { menu.findItem(R.id.menu_alert).setVisible(false); } else { menu.findItem(R.id.menu_delete_remind).setVisible(false); } // //更换背景 // if(mode==0){ // menu.findItem(R.id.menu_hutao).setVisible(false); // }else if(mode==1){ // menu.findItem(R.id.menu_keli).setVisible(false); // } else if (mode==2) { // menu.findItem(R.id.menu_moren).setVisible(false); // } return true; } //删除标签，修改字体大小 //ToDo @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_new_note: createNewNote(); break; case R.id.menu_delete: AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle(getString(R.string.alert_title_delete)); builder.setIcon(android.R.drawable.ic_dialog_alert); builder.setMessage(getString(R.string.alert_message_delete_note)); builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { deleteCurrentNote(); finish(); } }); builder.setNegativeButton(android.R.string.cancel, null); builder.show(); break; case R.id.menu_font_size: mFontSizeSelector.setVisibility(View.VISIBLE); findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE); break; case R.id.menu_list_mode: mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ? TextNote.MODE_CHECK_LIST : 0); break; case R.id.menu_share: getWorkingText(); sendTo(this, mWorkingNote.getContent()); break; case R.id.menu_send_to_desktop: sendToDesktop(); break; case R.id.menu_alert: setReminder(); break; case R.id.menu_delete_remind: mWorkingNote.setAlertDate(0, false); break; case R.id.menu_select_image: // 用户点击了选择图片菜单项 Intent loadImage = new Intent(Intent.ACTION_GET_CONTENT); loadImage.addCategory(Intent.CATEGORY_OPENABLE); loadImage.setType("image/*"); startActivityForResult(loadImage, PHOTO_REQUEST); break; case R.id.menu_hutao: mode=0; getWindow().setBackgroundDrawableResource(R.drawable.hutao); break; case R.id.menu_keli: mode=1; getWindow().setBackgroundDrawableResource(R.drawable.keli); break; case R.id.menu_moren: mode=2; getWindow().setBackgroundDrawableResource(R.drawable.mi1); break; case R.id.menu_insert_audio: Intent intent = new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION); startActivityForResult(intent, RECORD_REQUEST); case R.id.join_password: { // 获取SharedPreferences对象 SharedPreferences sharedPreferences = getSharedPreferences("NoteLock", MODE_PRIVATE); // 检查笔记是否未被锁定 if (sharedPreferences.getBoolean("isLocked", false)) { // 如果笔记未被锁定，弹出提示信息 } else { // 如果笔记没有被锁定，弹出确认对话框 AlertDialog.Builder dialog = new AlertDialog.Builder(this); dialog.setTitle("重要提醒"); dialog.setMessage("您确认将此笔记加入笔记锁吗？"); dialog.setCancelable(false); dialog.setPositiveButton("确认", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // 获取 SharedPreferences 中保存的密码 SharedPreferences prefs = getSharedPreferences("MyApp", MODE_PRIVATE); final String savedPassword = prefs.getString("password", ""); if (!savedPassword.isEmpty()) { // 如果密码存在，弹出一个对话框让用户输入密码 AlertDialog.Builder passwordDialog = new AlertDialog.Builder(NoteEditActivity.this); passwordDialog.setTitle("输入密码"); final EditText input = new EditText(NoteEditActivity.this); passwordDialog.setView(input); passwordDialog.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { String enteredPassword = input.getText().toString(); try { // 创建 MessageDigest 实例 MessageDigest digest = MessageDigest.getInstance("SHA-256"); // 生成哈希值 byte[] hash = digest.digest(enteredPassword.getBytes(Charset.forName("UTF-8"))); // 将字节转换为十六进制字符串 StringBuilder hexString = new StringBuilder(); for (byte b : hash) { String hex = Integer.toHexString(0xff & b); if (hex.length() == 1) hexString.append('0'); hexString.append(hex); } // 获取输入密码的哈希值 String enteredHashedPassword = hexString.toString(); // 比较输入密码的哈希值与保存的哈希密码是否相同 if (enteredHashedPassword.equals(savedPassword)) { // 如果密码正确，设置笔记被锁定 SharedPreferences.Editor editor = sharedPreferences.edit(); editor.putBoolean("isLocked", true); editor.apply(); // 弹出提示信息 Toast.makeText(NoteEditActivity.this, "笔记锁已添加", Toast.LENGTH_SHORT).show(); // 显示笔记内容 // 这里需要你自己实现显示笔记内容的逻辑 } else { // 如果密码错误，提示用户 Toast.makeText(NoteEditActivity.this, "密码错误", Toast.LENGTH_SHORT).show(); } } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } } }); passwordDialog.setNegativeButton("取消", null); passwordDialog.show(); } else { // 如果密码不存在，直接显示笔记内容 // 这里需要你自己实现显示笔记内容的逻辑 } } }); dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) {} }); dialog.show(); } break; } case R.id.out_password:{ // 获取SharedPreferences对象 SharedPreferences sharedPreferences = getSharedPreferences("NoteLock", MODE_PRIVATE); // 检查笔记是否未被锁定 if (!sharedPreferences.getBoolean("isLocked", false)) { // 如果笔记未被锁定，弹出提示信息 Toast.makeText(NoteEditActivity.this, "该笔记未被锁定", Toast.LENGTH_SHORT).show(); } else { // 如果笔记被锁定，弹出确认对话框 AlertDialog.Builder dialog = new AlertDialog.Builder(this); dialog.setTitle("重要提醒"); dialog.setMessage("您确认将此笔记删除笔记锁吗？"); dialog.setCancelable(false); dialog.setPositiveButton("确认", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // 删除笔记锁 SharedPreferences.Editor editor = sharedPreferences.edit(); editor.putBoolean("isLocked", false); editor.apply(); // 弹出提示信息 Toast.makeText(NoteEditActivity.this, "笔记锁已删除", Toast.LENGTH_SHORT).show(); // 显示笔记内容 // 这里需要你自己实现显示笔记内容的逻辑 } }); dialog.setNegativeButton("取消", null); dialog.show(); } break; } // 导出为文件 png、word、txt case R.id.menu_export_text: saveAsTxtFile(); break; case R.id.menu_export_png: saveAsImageFile(); break; case R.id.menu_export_doc: saveAsWordFile(); break; default: break; } return true; } //TODO //添加提醒 private void setReminder() { DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis()); d.setOnDateTimeSetListener(new OnDateTimeSetListener() { public void OnDateTimeSet(AlertDialog dialog, long date) { mWorkingNote.setAlertDate(date , true); } }); d.show(); } /** * Share note to apps that support {@link Intent#ACTION_SEND} action * and {@text/plain} type */ //TODO //分享 private void sendTo(Context context, String info) { Intent intent = new Intent(Intent.ACTION_SEND); intent.putExtra(Intent.EXTRA_TEXT, info); intent.setType("text/plain"); context.startActivity(intent); } // 新建标签 //TODO private void createNewNote() { // Firstly, save current editing notes saveNote(); // For safety, start a new NoteEditActivity finish(); Intent intent = new Intent(this, NoteEditActivity.class); intent.setAction(Intent.ACTION_INSERT_OR_EDIT); intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId()); startActivity(intent); } private void deleteCurrentNote() { if (mWorkingNote.existInDatabase()) { //假如当前运行的便签内存有数据 HashSet ids = new HashSet(); long id = mWorkingNote.getNoteId(); if (id != Notes.ID_ROOT_FOLDER) { ids.add(id); } else { Log.d(TAG, "Wrong note id, should not happen"); } if (!isSyncMode()) { if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) { Log.e(TAG, "Delete Note error"); } } else { if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) { Log.e(TAG, "Move notes to trash folder error, should not happens"); } } } mWorkingNote.markDeleted(true); } private boolean isSyncMode() { return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; } public void onClockAlertChanged(long date, boolean set) { /** * User could set clock to an unsaved note, so before setting the * alert clock, we should save the note first */ if (!mWorkingNote.existInDatabase()) { saveNote(); } if (mWorkingNote.getNoteId() > 0) { Intent intent = new Intent(this, AlarmReceiver.class); intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId())); PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0); AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE)); showAlertHeader(); if(!set) { alarmManager.cancel(pendingIntent); } else { alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent); } } else { /** * There is the condition that user has input nothing (the note is * not worthy saving), we have no note id, remind the user that he * should input something */ Log.e(TAG, "Clock alert setting error"); showToast(R.string.error_note_empty_for_clock); } } public void onWidgetChanged() { updateWidget(); } /* * 函数功能： 删除编辑文本框所触发的事件 * 函数实现：如下注释 */ public void onEditTextDelete(int index, String text) { int childCount = mEditTextList.getChildCount();//没有编辑框的话直接返回 if (childCount == 1) { return; } for (int i = index + 1; i < childCount; i++) { ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) .setIndex(i - 1); //通过id把编辑框存在便签编辑框中 } mEditTextList.removeViewAt(index); //删除特定位置的视图 NoteEditText edit = null; if(index == 0) { edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById( R.id.et_edit_text); } else { edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById( R.id.et_edit_text); }//通过id把编辑框存在空的NoteEditText中 int length = edit.length(); edit.append(text); edit.requestFocus(); edit.setSelection(length); } /* * 函数功能：进入编辑文本框所触发的事件 * 函数实现：如下注释 */ public void onEditTextEnter(int index, String text) { /** * Should not happen, check for debug */ if(index > mEditTextList.getChildCount()) { Log.e(TAG, "Index out of mEditTextList boundrary, should not happen"); } View view = getListItem(text, index); mEditTextList.addView(view, index); NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); edit.requestFocus(); edit.setSelection(0); for (int i = index + 1; i < mEditTextList.getChildCount(); i++) { ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) .setIndex(i); } } /* * 函数功能：切换至列表模式 * 函数实现：如下注释 */ private void switchToListMode(String text) { mEditTextList.removeAllViews(); String[] items = text.split("\n"); int index = 0; for (String item : items) { if(!TextUtils.isEmpty(item)) { mEditTextList.addView(getListItem(item, index)); index++; } } mEditTextList.addView(getListItem("", index)); mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus(); mNoteEditor.setVisibility(View.GONE); mEditTextList.setVisibility(View.VISIBLE); } /* * 函数功能：获取高亮效果的反馈情况 * 函数实现：如下注释 */ private Spannable getHighlightQueryResult(String fullText, String userQuery) { SpannableString spannable = new SpannableString(fullText == null ? "" : fullText); if (!TextUtils.isEmpty(userQuery)) { mPattern = Pattern.compile(userQuery); Matcher m = mPattern.matcher(fullText); int start = 0; while (m.find(start)) { spannable.setSpan( new BackgroundColorSpan(this.getResources().getColor( R.color.user_query_highlight)), m.start(), m.end(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE); start = m.end(); } } return spannable; } //获取列表项 private View getListItem(String item, int index) { View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null); final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId)); CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item)); cb.setOnCheckedChangeListener(new OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG); } else { edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); } } }); if (item.startsWith(TAG_CHECKED)) { cb.setChecked(true); edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG); item = item.substring(TAG_CHECKED.length(), item.length()).trim(); } else if (item.startsWith(TAG_UNCHECKED)) { cb.setChecked(false); edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); item = item.substring(TAG_UNCHECKED.length(), item.length()).trim(); } edit.setOnTextViewChangeListener(this); edit.setIndex(index); edit.setText(getHighlightQueryResult(item, mUserQuery)); return view; } // 函数功能：便签内容发生改变所触发的事件 public void onTextChange(int index, boolean hasText) { if (index >= mEditTextList.getChildCount()) { Log.e(TAG, "Wrong index, should not happen"); return; } 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); } //如果内容不为空则将其子编辑框可见性置为可见，否则不可见 } public void onCheckListModeChanged(int oldMode, int newMode) { if (newMode == TextNote.MODE_CHECK_LIST) { switchToListMode(mNoteEditor.getText().toString()); } else { if (!getWorkingText()) { mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ", "")); } mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); mEditTextList.setVisibility(View.GONE); mNoteEditor.setVisibility(View.VISIBLE); convertToImage(); //退出清单模式，应该将有图片的地方显示出来 } } //TODO //分享，设置勾选选项表并返回是否勾选的标记 private boolean getWorkingText() { boolean hasChecked = false; if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < mEditTextList.getChildCount(); i++) { View view = mEditTextList.getChildAt(i); NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); if (!TextUtils.isEmpty(edit.getText())) { if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) { sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n"); hasChecked = true; } else { sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n"); } } } mWorkingNote.setWorkingText(sb.toString()); } else { mWorkingNote.setWorkingText(mNoteEditor.getText().toString()); } return hasChecked; } //保存注释 private boolean saveNote() { getWorkingText(); boolean saved = mWorkingNote.saveNote(); if (saved) { /** * There are two modes from List view to edit view, open one note, * create/edit a node. Opening node requires to the original * position in the list when back from edit view, while creating a * new node requires to the top of the list. This code * {@link #RESULT_OK} is used to identify the create/edit state */ //如英文注释所说链接RESULT_OK是为了识别保存的2种情况： // 一是创建后保存，二是修改后保存 setResult(RESULT_OK); } return saved; } //TODO //发送到桌面 private void sendToDesktop() { /** * Before send message to home, we should make sure that current * editing note is exists in databases. So, for new note, firstly * save it */ if (!mWorkingNote.existInDatabase()) { saveNote(); }//若不存在数据也就是新的标签就保存起来先 if (mWorkingNote.getNoteId() > 0) { Intent sender = new Intent(); //建立发送到桌面的连接器 Intent shortcutIntent = new Intent(this, NoteEditActivity.class); //链接是一个视图 shortcutIntent.setAction(Intent.ACTION_VIEW); shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId()); sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent); sender.putExtra(Intent.EXTRA_SHORTCUT_NAME, makeShortcutIconTitle(mWorkingNote.getContent())); sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app)); ////将便签的相关信息都添加到要发送的文件里 sender.putExtra("duplicate", true); //设置sneder的行为是发送 sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT"); //显示到桌面 showToast(R.string.info_note_enter_desktop); sendBroadcast(sender); } else { /** * There is the condition that user has input nothing (the note is * not worthy saving), we have no note id, remind the user that he * should input something */ Log.e(TAG, "Send to desktop error"); showToast(R.string.error_note_empty_for_send_to_desktop); } } /* * 函数功能：编辑小图标的标题 * 函数实现：如下注释 * 直接设置为content中的内容并返回，有勾选和未勾选2种 */ private String makeShortcutIconTitle(String content) { content = content.replace(TAG_CHECKED, ""); content = content.replace(TAG_UNCHECKED, ""); return content.length() > SHORTCUT_ICON_TITLE_MAX_LEN ? content.substring(0, SHORTCUT_ICON_TITLE_MAX_LEN) : content; } private void showToast(int resId) { showToast(resId, Toast.LENGTH_SHORT); } private void showToast(int resId, int duration) { Toast.makeText(this, resId, duration).show(); } //重写onActivityResult()来处理返回的数据 //直接采用简单的方法类返回数据 protected void onActivityResult(int requestCode, int resultCode, Intent intent) { super.onActivityResult(requestCode, resultCode, intent); ContentResolver resolver = getContentResolver(); switch (requestCode) { case PHOTO_REQUEST: Uri originalUri = intent.getData(); //1.获得图片的真实路径 Bitmap bitmap = null; try { bitmap = BitmapFactory.decodeStream(resolver.openInputStream(originalUri));//2.解码图片 } catch (FileNotFoundException e) { Log.d(TAG, "onActivityResult: get file_exception"); e.printStackTrace(); } if(bitmap != null){ //3.根据Bitmap对象创建ImageSpan对象 Log.d(TAG, "onActivityResult: bitmap is not null"); ImageSpan imageSpan = new ImageSpan(NoteEditActivity.this, bitmap); String path = getPath(this,originalUri); //4.使用[local][/local]将path括起来，用于之后方便识别图片路径在note中的位置 String img_fragment= "[local]" + path + "[/local]"; //创建一个SpannableString对象，以便插入用ImageSpan对象封装的图像 SpannableString spannableString = new SpannableString(img_fragment); spannableString.setSpan(imageSpan, 0, img_fragment.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); //5.将选择的图片追加到EditText中光标所在位置 NoteEditText e = (NoteEditText) findViewById(R.id.note_edit_view); int index = e.getSelectionStart(); //获取光标所在位置 Log.d(TAG, "Index是: " + index); Editable edit_text = e.getEditableText(); edit_text.insert(index, spannableString); //将图片插入到光标所在位置 // // // 添加以下代码来在图片插入后自动换行 // edit_text.insert(index + spannableString.length(), "\n");// 在图片后添加一个换行符 // // // 更新光标 // e.setSelection(index + spannableString.length() + 1); // 将光标移动到换行符后面 mWorkingNote.mContent = e.getText().toString(); mWorkingNote.mContent = mWorkingNote.mContent.replaceAll("(?m)^[ \t]*\r?\n", ""); // 删除空白行 // //6.把改动提交到数据库中,两个数据库表都要改的 // ContentResolver contentResolver = getContentResolver(); // ContentValues contentValues = new ContentValues(); // final long id = mWorkingNote.getNoteId(); // contentValues.put("snippet",mWorkingNote.mContent); // contentResolver.update(Uri.parse("content://micode_notes/note"), contentValues,"_id=?",new String[]{""+id}); // ContentValues contentValues1 = new ContentValues(); // contentValues1.put("content",mWorkingNote.mContent); // contentResolver.update(Uri.parse("content://micode_notes/data"), contentValues1,"mime_type=? and note_id=?", new String[]{"vnd.android.cursor.item/text_note",""+id}); }else{ Toast.makeText(NoteEditActivity.this, "获取图片失败", Toast.LENGTH_SHORT).show(); } break; case RECORD_REQUEST: Uri audioUri = intent.getData(); Button playButton = findViewById(R.id.button_play_audio); playButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // 在按钮点击事件中处理播放音频的逻辑 playAudio(audioUri); } }); break; default: break; } } private void playAudio(Uri audioUri) { try { MediaPlayer mediaPlayer = new MediaPlayer(); mediaPlayer.setDataSource(getApplicationContext(), audioUri); mediaPlayer.prepare(); mediaPlayer.start(); // 当音频播放完成后，可以在需要的地方添加监听器 mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { // 音频播放完成后的操作 } }); } catch (IOException e) { e.printStackTrace(); // 处理播放音频时的异常情况 } } //获取文件的real path public String getPath(final Context context, final Uri uri) { final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT; // DocumentProvider if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { // ExternalStorageProvider if (isExternalStorageDocument(uri)) { final String docId = DocumentsContract.getDocumentId(uri); final String[] split = docId.split(":"); final String type = split[0]; if ("primary".equalsIgnoreCase(type)) { return Environment.getExternalStorageDirectory() + "/" + split[1]; } } // // DownloadsProvider else if (isDownloadsDocument(uri)) { final String id = DocumentsContract.getDocumentId(uri); final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id)); return getDataColumn(context, contentUri, null, null); } // MediaProvider else if (isMediaDocument(uri)) { final String docId = DocumentsContract.getDocumentId(uri); final String[] split = docId.split(":"); final String type = split[0]; Uri contentUri = null; if ("image".equals(type)) { contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; } final String selection = "_id=?"; final String[] selectionArgs = new String[]{split[1]}; return getDataColumn(context, contentUri, selection, selectionArgs); } } // Media else if ("content".equalsIgnoreCase(uri.getScheme())) { return getDataColumn(context, uri, null, null); } // File else if ("file".equalsIgnoreCase(uri.getScheme())) { return uri.getPath(); } return null; } //获取数据列_获取此 Uri 的数据列的值。这对MediaStore Uris 和其他基于文件的 ContentProvider。 public String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) { Cursor cursor = null; final String column = "_data"; final String[] projection = {column}; try { cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null); if (cursor != null && cursor.moveToFirst()) { final int column_index = cursor.getColumnIndexOrThrow(column); return cursor.getString(column_index); } } finally { if (cursor != null) cursor.close(); } return null; } //是否为外部存储文件 public boolean isExternalStorageDocument(Uri uri) { return "com.android.externalstorage.documents".equals(uri.getAuthority()); } //是否为下载文件 public boolean isDownloadsDocument(Uri uri) { return "com.android.providers.downloads.documents".equals(uri.getAuthority()); } //是否为媒体文件 public boolean isMediaDocument(Uri uri) { return "com.android.providers.media.documents".equals(uri.getAuthority()); } private void saveAsTxtFile() { NoteEditText noteEditText = findViewById(R.id.note_edit_view); Editable editable = noteEditText.getEditableText(); String noteText = editable.toString(); try { // 创建文件名 String fileName = noteText.substring(0,3)+".txt"; // 保存到文件管理器的download目录中 File publicDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS); if (publicDirectory != null) { // 创建保存文件的完整路径 File file = new File(publicDirectory, fileName); // 创建文件输出流 FileOutputStream outputStream = new FileOutputStream(file); // 写入文本内容 outputStream.write(noteText.getBytes()); // 关闭文件输出流 outputStream.close(); // 获取保存文件的完整路径 String filePath = file.getAbsolutePath(); Toast.makeText(this, "成功保存到：" + filePath, Toast.LENGTH_SHORT).show(); } } catch (IOException e) { e.printStackTrace(); Toast.makeText(this, "保存失败", Toast.LENGTH_SHORT).show(); } } private void saveAsImageFile() { NoteEditText noteEditText = findViewById(R.id.note_edit_view); Editable editable = noteEditText.getEditableText(); String noteText = editable.toString(); try { // 创建文件名 String fileName = noteText.substring(0,3)+".png"; // 保存到文件管理器的download目录中 File publicDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS); if (publicDirectory != null) { // 创建保存文件的完整路径 File file = new File(publicDirectory, fileName); // 创建Bitmap对象 Bitmap bitmap = Bitmap.createBitmap(noteEditText.getWidth(), noteEditText.getHeight(), Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); noteEditText.draw(canvas); // 创建文件输出流 FileOutputStream outputStream = new FileOutputStream(file); // 将Bitmap保存为PNG格式的图片 bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream); // 关闭文件输出流0 outputStream.close(); // 获取保存文件的完整路径 String filePath = file.getAbsolutePath(); Toast.makeText(this, "成功保存到：" + filePath, Toast.LENGTH_SHORT).show(); } } catch (IOException e) { e.printStackTrace(); Toast.makeText(this, "保存失败", Toast.LENGTH_SHORT).show(); } } private void saveAsWordFile() { NoteEditText noteEditText = findViewById(R.id.note_edit_view); Editable editable = noteEditText.getEditableText(); String noteText = editable.toString(); try { // 创建文件名 String fileName = noteText.substring(0,3)+".doc"; // 保存到文件管理器的download目录中 File publicDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS); if (publicDirectory != null) { // 创建保存文件的完整路径 File file = new File(publicDirectory, fileName); // 创建文件输出流 FileOutputStream outputStream = new FileOutputStream(file); // 写入文本内容 outputStream.write(noteText.getBytes()); // 关闭文件输出流 outputStream.close(); // 获取保存文件的完整路径 String filePath = file.getAbsolutePath(); Toast.makeText(this, "成功保存到：" + filePath, Toast.LENGTH_SHORT).show(); } } catch (IOException e) { e.printStackTrace(); Toast.makeText(this, "保存失败", Toast.LENGTH_SHORT).show(); } } }