/*
 * 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.Manifest;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.AlertDialog;
import android.app.PendingIntent;
import android.app.SearchManager;
import android.appwidget.AppWidgetManager;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.Paint;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.preference.PreferenceManager;
import android.provider.MediaStore;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.TextUtils;
import android.text.format.DateUtils;
import android.text.style.BackgroundColorSpan;
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.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ScrollView;
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.Notes.NoteColumns;
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.FileOutputStream;
import java.io.IOException;
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;

import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import java.util.UUID;

public class NoteEditActivity extends Activity implements OnClickListener,
        NoteSettingChangedListener, OnTextViewChangeListener {
    private class HeadViewHolder {
        public TextView tvModified;

        public ImageView ivAlertIcon;

        public TextView tvAlertDate;

        public ImageView ibSetBgColor;
    }

    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);
        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<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);
        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<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);
        sFontSizeBtnsMap.put(R.id.ll_font_normal, ResourceParser.TEXT_MEDIUM);
        sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER);
    }

    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);
        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";

    private HeadViewHolder mNoteHeaderHolder;

    private View mHeadViewPanel;

    private View mNoteBgColorSelector;

    private View mFontSizeSelector;

    private EditText mNoteEditor;

    private View mNoteEditorPanel;

    private WorkingNote mWorkingNote;

    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 static final int REQUEST_CODE_TAKE_PHOTO = 1;
    private static final int REQUEST_CODE_PICK_IMAGE = 2;
    private static final int REQUEST_CODE_PERMISSIONS = 100;
    private static final int REQUEST_CODE_PERMISSION_EXPLANATION = 101;
    private static final String TEMP_PHOTO_FILE_NAME = "temp_photo.jpg";
    
    private static final String[] REQUIRED_PERMISSIONS = {
        Manifest.permission.CAMERA
    };
    
    private ImageButton mAddImageButton;
    private LinearLayout mImageContainer;
    private List<String> mImagePaths;
    private File mTempPhotoFile;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.d(TAG, "onCreate: 开始创建活动");
        this.setContentView(R.layout.note_edit);

        mImagePaths = new ArrayList<>();
        mTempPhotoFile = new File(getExternalFilesDir(null), TEMP_PHOTO_FILE_NAME);
        Log.d(TAG, "onCreate: 临时文件路径: " + mTempPhotoFile.getAbsolutePath());

        if (savedInstanceState == null && !initActivityState(getIntent())) {
            Log.e(TAG, "onCreate: 初始化活动状态失败");
            finish();
            return;
        }
        initResources();
        Log.d(TAG, "onCreate: 活动创建完成");
    }

    /**
     * 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");
        }
    }

    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);
        } 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();
        
        // 确保图片容器可见
        if (mImageContainer != null) {
            mImageContainer.setVisibility(View.VISIBLE);
            mImageContainer.invalidate();
        }
    }

    private void initNoteScreen() {
        mNoteEditor.setTextAppearance(this, TextAppearanceResources
                .getTexAppearanceResource(mFontSizeId));
                
        String noteContent = mWorkingNote.getContent();
        StringBuilder textContent = new StringBuilder();
        mImagePaths.clear(); // 清空之前的图片路径
        mImageContainer.removeAllViews(); // 清空之前的图片视图

        if (noteContent == null) {
            noteContent = ""; // 如果内容为null，设置为空字符串
        }

        if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
            // 在列表模式下，图片会添加到每个列表项下方或笔记末尾
            // 目前仅处理普通模式下的图片显示
            switchToListMode(noteContent);
        } else {
            // 在普通模式下，解析图片路径并显示图片
            String[] lines = noteContent.split("\n");
            for (String line : lines) {
                if (line.startsWith("[图片]")) {
                    String imagePath = line.substring("[图片]".length()).trim();
                    if (!TextUtils.isEmpty(imagePath)) {
                        addImageToNote(imagePath); // 显示图片
                    }
                } else {
                    if (textContent.length() > 0) {
                        textContent.append("\n");
                    }
                    textContent.append(line);
                }
            }
            mNoteEditor.setText(getHighlightQueryResult(textContent.toString(), 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();
    }

    private void showAlertHeader() {
        if (mWorkingNote.hasClockAlert()) {
            long time = System.currentTimeMillis();
            if (time > mWorkingNote.getAlertDate()) {
                mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired);
            } 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);
        };
    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        initActivityState(intent);
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        /**
         * 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();
        }
        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);
    }

    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);

        // 初始化图片容器
        mImageContainer = (LinearLayout) findViewById(R.id.image_container);
        if (mImageContainer == null) {
            Log.e(TAG, "找不到图片容器视图");
            Toast.makeText(this, "初始化图片容器失败", Toast.LENGTH_SHORT).show();
        } else {
            Log.d(TAG, "图片容器初始化成功");
            // 设置图片容器的属性
            mImageContainer.setOrientation(LinearLayout.VERTICAL);
            mImageContainer.setVisibility(View.VISIBLE);
            mImageContainer.setBackgroundColor(Color.TRANSPARENT);
            mImageContainer.setPadding(16, 16, 16, 16);
        }
        
        // 初始化图片按钮
        mAddImageButton = (ImageButton) findViewById(R.id.btn_add_image);
        if (mAddImageButton == null) {
            Log.e(TAG, "找不到添加图片按钮");
            Toast.makeText(this, "初始化添加图片按钮失败", Toast.LENGTH_SHORT).show();
        } else {
            mAddImageButton.setOnClickListener(this);
            Log.d(TAG, "添加图片按钮初始化成功");
        }
        
        // 初始化图片路径列表
        mImagePaths = new ArrayList<>();
        mTempPhotoFile = new File(getExternalFilesDir(null), TEMP_PHOTO_FILE_NAME);
        Log.d(TAG, "临时文件路径: " + mTempPhotoFile.getAbsolutePath());
    }

    @Override
    protected void onPause() {
        super.onPause();
        if(saveNote()) {
            Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length());
        }
        clearSettingState();
    }

    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_add_image) {
            Log.d(TAG, "onClick: 图片按钮被点击");
            if (!checkAndRequestPermissions()) {
                Log.d(TAG, "onClick: 权限检查未通过");
                return;
            }
            showImagePickerDialog();
            return;
        }
        
        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 onCreateOptionsMenu(Menu menu) {
        // 查询笔记的父文件夹 ID
        boolean isInTrash = false;
        if (mWorkingNote != null) {
            Cursor cursor = getContentResolver().query(
                ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId()),
                new String[] { Notes.NoteColumns.PARENT_ID },
                null, null, null);
            if (cursor != null && cursor.moveToFirst()) {
                isInTrash = cursor.getLong(0) == Notes.ID_TRASH_FOLER;
                cursor.close();
            }
        }

        if (isInTrash) {
            // 在回收站中只显示删除和还原选项
            getMenuInflater().inflate(R.menu.note_edit, menu);
            // 隐藏其他选项
            menu.findItem(R.id.menu_new_note).setVisible(false);
            menu.findItem(R.id.menu_list_mode).setVisible(false);
            menu.findItem(R.id.menu_share).setVisible(false);
            menu.findItem(R.id.menu_send_to_desktop).setVisible(false);
            menu.findItem(R.id.menu_alert).setVisible(false);
            menu.findItem(R.id.menu_delete_remind).setVisible(false);
            menu.findItem(R.id.menu_font_size).setVisible(false);
            // 显示还原选项
            menu.findItem(R.id.menu_restore).setVisible(true);
        } else {
            // 普通笔记显示所有选项
            if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
                getMenuInflater().inflate(R.menu.note_edit, menu);
                menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_normal_mode);
            } else {
                getMenuInflater().inflate(R.menu.note_edit, menu);
            }
            if (mWorkingNote.hasClockAlert()) {
                menu.findItem(R.id.menu_alert).setVisible(false);
            } else {
                menu.findItem(R.id.menu_delete_remind).setVisible(false);
            }
            // 隐藏还原选项
            menu.findItem(R.id.menu_restore).setVisible(false);
        }
        return true;
    }

    @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();
                            }
                        });
                builder.setNegativeButton(android.R.string.cancel, null);
                builder.show();
                break;
            case R.id.menu_restore:
                // 还原笔记到根文件夹
                if (mWorkingNote != null && mWorkingNote.getNoteId() > 0) {
                    ContentValues values = new ContentValues();
                    values.put(Notes.NoteColumns.PARENT_ID, Notes.ID_ROOT_FOLDER);
                    values.put(Notes.NoteColumns.LOCAL_MODIFIED, 1);
                    values.put(Notes.NoteColumns.TYPE, Notes.TYPE_NOTE);
                    
                    Uri noteUri = ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId());
                    int result = getContentResolver().update(noteUri, values, null, null);
                    
                    if (result > 0) {
                        Toast.makeText(this, R.string.format_restore_notes, Toast.LENGTH_SHORT).show();
                        finish();
                    } else {
                        Toast.makeText(this, R.string.error_restore_note, Toast.LENGTH_SHORT).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;
            default:
                break;
        }
        return true;
    }

    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
     */
    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);
    }

    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()) {
            HashSet<Long> ids = new HashSet<Long>();
            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();
    }

    public void onEditTextDelete(int index, String text) {
        int childCount = mEditTextList.getChildCount();
        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);
        }

        mEditTextList.removeViewAt(index);
        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);
        }
        int length = edit.length();
        edit.append(text);
        edit.requestFocus();
        edit.setSelection(length);
    }

    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);
        }
    }

    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);
    }

    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;
    }

    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;
    }

    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);
        }
    }

    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);
        }
    }

    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;
    }

    private boolean saveNote() {
        getWorkingText();
        // 保存图片路径到笔记内容中
        StringBuilder content = new StringBuilder(mWorkingNote.getContent());
        // 清除旧的图片路径，避免重复
        String currentContent = content.toString();
        content.setLength(0); // 清空
        
        String[] lines = currentContent.split("\n");
        for (String line : lines) {
            if (!line.startsWith("[图片]")) {
                if (content.length() > 0) {
                    content.append("\n");
                }
                content.append(line);
            }
        }

        for (String imagePath : mImagePaths) {
            if (content.length() > 0) {
                content.append("\n");
            }
            content.append("[图片]").append(imagePath);
        }
        mWorkingNote.setWorkingText(content.toString());
        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
             */
            setResult(RESULT_OK);
        }
        return saved;
    }

    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();
        }

        if (mWorkingNote.getNoteId() > 0) {
            Intent sender = new Intent();
            Intent shortcutIntent = new Intent(this, NoteEditActivity.class);
            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));
            sender.putExtra("duplicate", true);
            sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
            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);
        }
    }

    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();
    }

    private boolean checkAndRequestPermissions() {
        Log.d(TAG, "checkAndRequestPermissions: 开始检查权限");
        List<String> permissionsToRequest = new ArrayList<>();
        
        for (String permission : REQUIRED_PERMISSIONS) {
            int permissionStatus = ContextCompat.checkSelfPermission(this, permission);
            Log.d(TAG, "checkAndRequestPermissions: 权限 " + permission + " 状态: " + 
                (permissionStatus == PackageManager.PERMISSION_GRANTED ? "已授权" : "未授权"));
            
            if (permissionStatus != PackageManager.PERMISSION_GRANTED) {
                permissionsToRequest.add(permission);
                Log.d(TAG, "checkAndRequestPermissions: 需要请求权限: " + permission);
            }
        }
        
        if (!permissionsToRequest.isEmpty()) {
            Log.d(TAG, "checkAndRequestPermissions: 有未授权的权限，准备请求");
            ActivityCompat.requestPermissions(this, 
                permissionsToRequest.toArray(new String[0]), 
                REQUEST_CODE_PERMISSIONS);
            return false;
        }
        
        Log.d(TAG, "checkAndRequestPermissions: 所有权限已授予");
        return true;
    }
    
    private void showImagePickerDialog() {
        Log.d(TAG, "showImagePickerDialog: 准备显示图片选择对话框");
        if (!checkAndRequestPermissions()) {
            Log.d(TAG, "showImagePickerDialog: 权限检查未通过，等待用户授权");
            return;
        }
        
        Log.d(TAG, "showImagePickerDialog: 显示图片选择对话框");
        String[] items = new String[] { "拍照", "从相册选择" };
        new AlertDialog.Builder(this)
            .setTitle("选择图片来源")
            .setItems(items, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    if (which == 0) {
                        Log.d(TAG, "showImagePickerDialog: 用户选择拍照");
                        takePhoto();
                    } else {
                        Log.d(TAG, "showImagePickerDialog: 用户选择从相册选择");
                        pickImage();
                    }
                }
            })
            .show();
    }
    
    private void takePhoto() {
        try {
            Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
                // 确保目录存在
                File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
                if (!storageDir.exists()) {
                    storageDir.mkdirs();
                }
                
                // 创建临时文件
                mTempPhotoFile = new File(storageDir, TEMP_PHOTO_FILE_NAME);
                
                // 获取文件的URI
                Uri photoURI = androidx.core.content.FileProvider.getUriForFile(this,
                    getApplicationContext().getPackageName() + ".fileprovider",
                    mTempPhotoFile);
                
                takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
                startActivityForResult(takePictureIntent, REQUEST_CODE_TAKE_PHOTO);
            } else {
                Toast.makeText(this, "没有可用的相机应用", Toast.LENGTH_SHORT).show();
            }
        } catch (Exception e) {
            Log.e(TAG, "启动相机失败", e);
            Toast.makeText(this, "启动相机失败: " + e.getMessage(), Toast.LENGTH_SHORT).show();
        }
    }
    
    private void pickImage() {
        try {
            Intent pickImageIntent = new Intent(Intent.ACTION_GET_CONTENT);
            pickImageIntent.setType("image/*");
            startActivityForResult(pickImageIntent, REQUEST_CODE_PICK_IMAGE);
        } catch (Exception e) {
            Log.e(TAG, "打开图库失败", e);
            Toast.makeText(this, "打开图库失败: " + e.getMessage(), Toast.LENGTH_SHORT).show();
        }
    }
    
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == RESULT_OK) {
            try {
                switch (requestCode) {
                    case REQUEST_CODE_TAKE_PHOTO:
                        if (mTempPhotoFile != null && mTempPhotoFile.exists()) {
                            String photoPath = mTempPhotoFile.getAbsolutePath();
                            Log.d(TAG, "拍照图片路径: " + photoPath);
                            addImageToNote(photoPath);
                        } else {
                            Toast.makeText(this, "拍照失败", Toast.LENGTH_SHORT).show();
                        }
                        break;
                    case REQUEST_CODE_PICK_IMAGE:
                        if (data != null) {
                            Uri selectedImage = data.getData();
                            Log.d(TAG, "选择的图片URI: " + selectedImage);
                            
                            // 获取真实文件路径
                            String realPath = getRealPathFromUri(selectedImage);
                            if (realPath != null) {
                                Log.d(TAG, "图片真实路径: " + realPath);
                                addImageToNote(realPath);
                            } else {
                                // 如果无法获取真实路径，尝试直接使用URI
                                try {
                                    Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), selectedImage);
                                    String tempPath = saveBitmapToFile(bitmap);
                                    if (tempPath != null) {
                                        addImageToNote(tempPath);
                                    }
                                } catch (Exception e) {
                                    Log.e(TAG, "处理图片URI失败", e);
                                    Toast.makeText(this, "处理图片失败", Toast.LENGTH_SHORT).show();
                                }
                            }
                        }
                        break;
                }
            } catch (Exception e) {
                Log.e(TAG, "处理图片结果失败", e);
                Toast.makeText(this, "处理图片失败: " + e.getMessage(), Toast.LENGTH_SHORT).show();
            }
        }
    }
    
    private String getRealPathFromUri(Uri uri) {
        String[] projection = {MediaStore.Images.Media.DATA};
        android.database.Cursor cursor = getContentResolver().query(uri, projection, null, null, null);
        if (cursor != null) {
            try {
                int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                cursor.moveToFirst();
                return cursor.getString(column_index);
            } finally {
                cursor.close();
            }
        }
        return null;
    }

    private String saveBitmapToFile(Bitmap bitmap) {
        try {
            // 使用应用私有目录保存图片
            File storageDir = new File(getExternalFilesDir(Environment.DIRECTORY_PICTURES), "Notes");
            if (!storageDir.exists()) {
                if (!storageDir.mkdirs()) {
                    Log.e(TAG, "创建图片存储目录失败");
                    return null;
                }
            }
            
            // 生成唯一的文件名
            String fileName = "IMG_" + System.currentTimeMillis() + "_" + UUID.randomUUID().toString() + ".jpg";
            File imageFile = new File(storageDir, fileName);
            
            FileOutputStream fos = new FileOutputStream(imageFile);
            bitmap.compress(Bitmap.CompressFormat.JPEG, 90, fos);
            fos.close();
            
            Log.d(TAG, "图片已保存到: " + imageFile.getAbsolutePath());
            return imageFile.getAbsolutePath();
        } catch (Exception e) {
            Log.e(TAG, "保存图片失败", e);
            return null;
        }
    }
    
    private void addImageToNote(String imagePath) {
        Log.d(TAG, "开始添加图片到笔记: " + imagePath);
        
        // 检查文件是否存在且可读
        File imageFile = new File(imagePath);
        if (!imageFile.exists()) {
            Log.e(TAG, "图片文件不存在: " + imagePath);
            Toast.makeText(this, "图片文件不存在", Toast.LENGTH_SHORT).show();
            return;
        }
        
        if (!imageFile.canRead()) {
            Log.e(TAG, "图片文件不可读: " + imagePath);
            Toast.makeText(this, "图片文件无法访问", Toast.LENGTH_SHORT).show();
            return;
        }
        
        // 检查是否已经添加过该图片
        if (mImagePaths.contains(imagePath)) {
            Log.d(TAG, "图片已经添加过: " + imagePath);
            return;
        }
        
        // 复制图片到应用私有目录
        try {
            Bitmap bitmap = BitmapFactory.decodeFile(imagePath);
            if (bitmap == null) {
                Log.e(TAG, "无法解码图片: " + imagePath);
                Toast.makeText(this, "无法读取图片", Toast.LENGTH_SHORT).show();
                return;
            }
            
            String newPath = saveBitmapToFile(bitmap);
            if (newPath == null) {
                Log.e(TAG, "保存图片失败: " + imagePath);
                Toast.makeText(this, "保存图片失败", Toast.LENGTH_SHORT).show();
                return;
            }
            
            // 使用新的路径
            imagePath = newPath;
        mImagePaths.add(imagePath);
        Log.d(TAG, "图片路径已添加到列表，当前图片数量: " + mImagePaths.size());
        
        // 创建图片视图
        ImageView imageView = new ImageView(this);
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT,
                LinearLayout.LayoutParams.WRAP_CONTENT);
        params.setMargins(0, 10, 0, 10);
        imageView.setLayoutParams(params);
            
            // 设置图片到ImageView
            imageView.setImageBitmap(bitmap);
            imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
            imageView.setAdjustViewBounds(true);
            
            // 添加删除按钮
            ImageButton deleteButton = new ImageButton(this);
            deleteButton.setImageResource(android.R.drawable.ic_menu_delete);
            LinearLayout.LayoutParams buttonParams = new LinearLayout.LayoutParams(
                    LinearLayout.LayoutParams.WRAP_CONTENT,
                    LinearLayout.LayoutParams.WRAP_CONTENT);
            buttonParams.gravity = android.view.Gravity.END;
            buttonParams.setMargins(0, 5, 0, 5);
            deleteButton.setLayoutParams(buttonParams);
            
            final String finalImagePath = imagePath;
            deleteButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    mImagePaths.remove(finalImagePath);
                    mImageContainer.removeView((View) v.getParent());
                    // 删除文件
                    new File(finalImagePath).delete();
                    Log.d(TAG, "图片已删除: " + finalImagePath);
                }
            });
            
            // 创建包含图片和删除按钮的容器
            LinearLayout imageContainer = new LinearLayout(this);
            imageContainer.setOrientation(LinearLayout.VERTICAL);
            imageContainer.setBackgroundResource(android.R.drawable.editbox_background);
            imageContainer.setPadding(8, 8, 8, 8);
            imageContainer.addView(imageView);
            imageContainer.addView(deleteButton);
            
            // 确保图片容器可见
            if (mImageContainer.getVisibility() != View.VISIBLE) {
                mImageContainer.setVisibility(View.VISIBLE);
            }
            
            // 添加到主容器
            mImageContainer.addView(imageContainer);
            Log.d(TAG, "图片已添加到视图: " + imagePath);
            
            // 强制重绘
            mImageContainer.invalidate();
            imageContainer.invalidate();
            imageView.invalidate();
            
            // 滚动到图片位置
            final ScrollView scrollView = findViewById(R.id.scroll_view);
            if (scrollView != null) {
                scrollView.post(new Runnable() {
                    @Override
                    public void run() {
                        scrollView.fullScroll(View.FOCUS_DOWN);
                    }
                });
            }
            
            // 更新笔记内容
            updateNoteContent();
            
        } catch (OutOfMemoryError e) {
            Log.e(TAG, "内存不足，无法加载图片", e);
            Toast.makeText(this, "内存不足，无法加载图片", Toast.LENGTH_SHORT).show();
        } catch (Exception e) {
            Log.e(TAG, "处理图片失败", e);
            Toast.makeText(this, "处理图片失败: " + e.getMessage(), Toast.LENGTH_SHORT).show();
        }
    }

    private void updateNoteContent() {
        if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
            // 在列表模式下，不处理图片
            return;
        }
        
        // 更新笔记内容
        StringBuilder content = new StringBuilder();
        String currentContent = mWorkingNote.getContent();
        
        // 保留非图片内容
        String[] lines = currentContent.split("\n");
        for (String line : lines) {
            if (!line.startsWith("[图片]")) {
                if (content.length() > 0) {
                    content.append("\n");
                }
                content.append(line);
            }
        }
        
        // 添加图片路径
        for (String imagePath : mImagePaths) {
            if (content.length() > 0) {
                content.append("\n");
            }
            content.append("[图片]").append(imagePath);
        }
        
        mWorkingNote.setWorkingText(content.toString());
    }
}
