diff --git a/doc/小米便签开源代码阅读-需求与设计方案-苏一嵩.docx b/doc/小米便签开源代码阅读-需求与设计方案-苏一嵩.docx
index 3ae8842..e63786d 100644
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diff --git a/src/Notes-master/.gradle/8.11.1/executionHistory/executionHistory.bin b/src/Notes-master/.gradle/8.11.1/executionHistory/executionHistory.bin
index 0526353..30b393f 100644
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diff --git a/src/Notes-master/.gradle/8.11.1/executionHistory/executionHistory.lock b/src/Notes-master/.gradle/8.11.1/executionHistory/executionHistory.lock
index 70261ba..e0b2a4f 100644
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diff --git a/src/Notes-master/.gradle/8.11.1/fileHashes/fileHashes.bin b/src/Notes-master/.gradle/8.11.1/fileHashes/fileHashes.bin
index 93ec1b6..53deed0 100644
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diff --git a/src/Notes-master/.gradle/8.11.1/fileHashes/fileHashes.lock b/src/Notes-master/.gradle/8.11.1/fileHashes/fileHashes.lock
index 1f32284..208cc89 100644
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diff --git a/src/Notes-master/.gradle/8.11.1/fileHashes/resourceHashesCache.bin b/src/Notes-master/.gradle/8.11.1/fileHashes/resourceHashesCache.bin
index f76d3e3..c9cb385 100644
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diff --git a/src/Notes-master/.gradle/buildOutputCleanup/buildOutputCleanup.lock b/src/Notes-master/.gradle/buildOutputCleanup/buildOutputCleanup.lock
index 907e7e8..fcae278 100644
Binary files a/src/Notes-master/.gradle/buildOutputCleanup/buildOutputCleanup.lock and b/src/Notes-master/.gradle/buildOutputCleanup/buildOutputCleanup.lock differ
diff --git a/src/Notes-master/.gradle/buildOutputCleanup/outputFiles.bin b/src/Notes-master/.gradle/buildOutputCleanup/outputFiles.bin
index 20435fd..9f8c5fa 100644
Binary files a/src/Notes-master/.gradle/buildOutputCleanup/outputFiles.bin and b/src/Notes-master/.gradle/buildOutputCleanup/outputFiles.bin differ
diff --git a/src/Notes-master/.gradle/file-system.probe b/src/Notes-master/.gradle/file-system.probe
index 338cb3d..0b17638 100644
Binary files a/src/Notes-master/.gradle/file-system.probe and b/src/Notes-master/.gradle/file-system.probe differ
diff --git a/src/Notes-master/.idea/.name b/src/Notes-master/.idea/.name
new file mode 100644
index 0000000..7efc0ae
--- /dev/null
+++ b/src/Notes-master/.idea/.name
@@ -0,0 +1 @@
+Notes-master
\ No newline at end of file
diff --git a/src/Notes-master/.idea/Notes-master.iml b/src/Notes-master/.idea/Notes-master.iml
deleted file mode 100644
index d6ebd48..0000000
--- a/src/Notes-master/.idea/Notes-master.iml
+++ /dev/null
@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/src/Notes-master/.idea/appInsightsSettings.xml b/src/Notes-master/.idea/appInsightsSettings.xml
deleted file mode 100644
index 6bbe2ae..0000000
--- a/src/Notes-master/.idea/appInsightsSettings.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="AppInsightsSettings">
-    <option name="selectedTabId" value="Android Vitals" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/src/Notes-master/.idea/deploymentTargetSelector.xml b/src/Notes-master/.idea/deploymentTargetSelector.xml
index eb7a82e..b268ef3 100644
--- a/src/Notes-master/.idea/deploymentTargetSelector.xml
+++ b/src/Notes-master/.idea/deploymentTargetSelector.xml
@@ -4,14 +4,6 @@
     <selectionStates>
       <SelectionState runConfigName="app">
         <option name="selectionMode" value="DROPDOWN" />
-        <DropdownSelection timestamp="2025-06-07T15:56:39.281897900Z">
-          <Target type="DEFAULT_BOOT">
-            <handle>
-              <DeviceId pluginId="LocalEmulator" identifier="path=C:\Users\Song91\.android\avd\Pixel_8_Pro.avd" />
-            </handle>
-          </Target>
-        </DropdownSelection>
-        <DialogSelection />
       </SelectionState>
     </selectionStates>
   </component>
diff --git a/src/Notes-master/.idea/gradle.xml b/src/Notes-master/.idea/gradle.xml
index 89f0eda..639c779 100644
--- a/src/Notes-master/.idea/gradle.xml
+++ b/src/Notes-master/.idea/gradle.xml
@@ -6,7 +6,6 @@
       <GradleProjectSettings>
         <option name="testRunner" value="CHOOSE_PER_TEST" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleHome" value="$PROJECT_DIR$/../../Android/Gradle/gradle-8.13" />
         <option name="gradleJvm" value="#GRADLE_LOCAL_JAVA_HOME" />
         <option name="modules">
           <set>
diff --git a/src/Notes-master/.idea/misc.xml b/src/Notes-master/.idea/misc.xml
index b94b9b2..74dd639 100644
--- a/src/Notes-master/.idea/misc.xml
+++ b/src/Notes-master/.idea/misc.xml
@@ -1,9 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="PWA">
-    <option name="enabled" value="true" />
-    <option name="wasEnabledAtLeastOnce" value="true" />
-  </component>
   <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
diff --git a/src/Notes-master/.vscode/settings.json b/src/Notes-master/.vscode/settings.json
deleted file mode 100644
index c5f3f6b..0000000
--- a/src/Notes-master/.vscode/settings.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "java.configuration.updateBuildConfiguration": "interactive"
-}
\ No newline at end of file
diff --git a/src/Notes-master/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java b/src/Notes-master/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
index da7f167..ef12652 100644
--- a/src/Notes-master/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
+++ b/src/Notes-master/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
@@ -33,6 +33,8 @@ import android.database.Cursor;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Paint;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
@@ -48,12 +50,14 @@ import android.text.style.BackgroundColorSpan;
 import android.text.style.ImageSpan;
 import android.util.Log;
 import android.view.LayoutInflater;
+import android.view.KeyEvent;
 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.view.inputmethod.InputMethodManager;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;
 import android.widget.CompoundButton.OnCheckedChangeListener;
@@ -79,6 +83,7 @@ import net.micode.notes.widget.NoteWidgetProvider_4x;
 
 import java.io.File;
 import java.io.FileNotFoundException;
+import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -169,7 +174,6 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     private final int PHOTO_REQUEST=1;
 
     @Override
-
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         this.setContentView(R.layout.note_edit);
@@ -179,6 +183,9 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             return;
         }
         initResources();
+        
+        // 初始化字体大小
+        mNoteEditor.setTextAppearance(this, ResourceParser.TextAppearanceResources.getTexAppearanceResource(mFontSizeId));
 
         //根据id获取添加图片按钮
         final ImageButton add_img_btn = (ImageButton) findViewById(R.id.add_img_btn);
@@ -187,13 +194,27 @@ public class NoteEditActivity extends Activity implements 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);
+                // 隐藏输入法
+                InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
+                if (imm != null) {
+                    imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
+                }
+                
+                // 延迟启动图片选择器，等待输入法完全隐藏
+                view.postDelayed(new Runnable() {
+                    @Override
+                    public void run() {
+                        try {
+                            Intent loadImage = new Intent(Intent.ACTION_GET_CONTENT);
+                            loadImage.addCategory(Intent.CATEGORY_OPENABLE);
+                            loadImage.setType("image/*");
+                            startActivityForResult(loadImage, PHOTO_REQUEST);
+                        } catch (Exception e) {
+                            Log.e(TAG, "启动图片选择器失败", e);
+                            Toast.makeText(NoteEditActivity.this, "启动图片选择器失败", Toast.LENGTH_SHORT).show();
+                        }
+                    }
+                }, 100); // 延迟100毫秒
             }
         });
     }
@@ -297,6 +318,8 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     protected void onResume() {
         super.onResume();
         initNoteScreen();
+        // 转换文本中的图片标记为实际图片
+        convertToImage();
     }
 
     private void initNoteScreen() {
@@ -449,17 +472,14 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         }
 
         mFontSizeSelector = findViewById(R.id.font_size_selector);
-        for (int id : sFontSizeBtnsMap.keySet()) {
-            View view = findViewById(id);
-            view.setOnClickListener(this);
-        };
+        // 为字体大小选择器的每个选项设置点击事件
+        findViewById(R.id.ll_font_small).setOnClickListener(this);
+        findViewById(R.id.ll_font_normal).setOnClickListener(this);
+        findViewById(R.id.ll_font_large).setOnClickListener(this);
+        findViewById(R.id.ll_font_super).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;
         }
@@ -494,43 +514,75 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         setResult(RESULT_OK, intent);
     }
 
+    @Override
     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);
+            if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) {
+                mNoteBgColorSelector.setVisibility(View.GONE);
+            } else {
+                mNoteBgColorSelector.setVisibility(View.VISIBLE);
+                mFontSizeSelector.setVisibility(View.GONE);
+            }
         } 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)) {
+            // 隐藏之前选中的字体大小图标
             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);
+            
+            int fontSizeId = sFontSizeBtnsMap.get(id);
+            mFontSizeId = fontSizeId;
+            mSharedPrefs.edit().putInt(PREFERENCE_FONT_SIZE, fontSizeId).commit();
+            mNoteEditor.setTextAppearance(this, ResourceParser.TextAppearanceResources.getTexAppearanceResource(fontSizeId));
+            
+            // 显示新选中的字体大小图标
+            findViewById(sFontSelectorSelectionMap.get(fontSizeId)).setVisibility(View.VISIBLE);
+            mFontSizeSelector.setVisibility(View.GONE);
             if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
                 getWorkingText();
                 switchToListMode(mWorkingNote.getContent());
             } else {
                 mNoteEditor.setTextAppearance(this,
-                        TextAppearanceResources.getTexAppearanceResource(mFontSizeId));
+                        TextAppearanceResources.getTexAppearanceResource(fontSizeId));
             }
-            mFontSizeSelector.setVisibility(View.GONE);
         }
     }
 
     @Override
     public void onBackPressed() {
+        if (mFontSizeSelector.getVisibility() == View.VISIBLE) {
+            mFontSizeSelector.setVisibility(View.GONE);
+            return;
+        }
+        if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) {
+            mNoteBgColorSelector.setVisibility(View.GONE);
+            return;
+        }
         if(clearSettingState()) {
             return;
         }
-
         saveNote();
         super.onBackPressed();
     }
 
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        if (keyCode == KeyEvent.KEYCODE_BACK) {
+            if (mFontSizeSelector.getVisibility() == View.VISIBLE) {
+                mFontSizeSelector.setVisibility(View.GONE);
+                return true;
+            }
+            if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) {
+                mNoteBgColorSelector.setVisibility(View.GONE);
+                return true;
+            }
+        }
+        return super.onKeyDown(keyCode, event);
+    }
+
     private boolean clearSettingState() {
         if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) {
             mNoteBgColorSelector.setVisibility(View.GONE);
@@ -575,7 +627,6 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     }
 
     @Override
-
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
             case R.id.menu_new_note:
@@ -597,9 +648,15 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                 builder.show();
                 break;
             case R.id.menu_font_size:
-                mFontSizeSelector.setVisibility(View.VISIBLE);
-                findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);
-                break;
+                if (mFontSizeSelector.getVisibility() == View.VISIBLE) {
+                    mFontSizeSelector.setVisibility(View.GONE);
+                } else {
+                    mFontSizeSelector.setVisibility(View.VISIBLE);
+                    mNoteBgColorSelector.setVisibility(View.GONE);
+                    // 显示当前选中的字体大小
+                    findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);
+                }
+                return true;
             case R.id.menu_list_mode:
                 mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ?
                         TextNote.MODE_CHECK_LIST : 0);
@@ -620,7 +677,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             default:
                 break;
         }
-        return true;
+        return super.onOptionsItemSelected(item);
     }
 
     private void setReminder() {
@@ -1034,45 +1091,198 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         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 (resultCode != RESULT_OK) {
+                    Log.e(TAG, "获取图片失败: resultCode = " + resultCode);
+                    Toast.makeText(NoteEditActivity.this, "获取图片失败: 用户取消或操作失败", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+                
+                if (intent == null) {
+                    Log.e(TAG, "获取图片失败: intent为null");
+                    Toast.makeText(NoteEditActivity.this, "获取图片失败: 未获取到图片数据", Toast.LENGTH_SHORT).show();
+                    return;
                 }
 
-                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);
+                Uri originalUri = intent.getData();
+                if (originalUri == null) {
+                    Log.e(TAG, "获取图片失败: originalUri为null");
+                    Toast.makeText(NoteEditActivity.this, "获取图片失败: 图片URI无效", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+
+                try {
+                    Log.d(TAG, "开始加载图片: Uri = " + originalUri);
+                    
+                    // 获取图片的真实路径
                     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
-
-                    mWorkingNote.mContent = e.getText().toString();
-                    //6.把改动提交到数据库中,两个数据库表都要改的
+                    Log.d(TAG, "图片路径: " + path);
+
+                    // 尝试多种方式加载图片
+                    Bitmap bitmap = null;
+                    
+                    // 方式1：直接从Uri加载
+                    try {
+                        bitmap = MediaStore.Images.Media.getBitmap(resolver, originalUri);
+                        Log.d(TAG, "从Uri加载图片成功");
+                    } catch (Exception e) {
+                        Log.e(TAG, "从Uri加载图片失败", e);
+                    }
+
+                    // 方式2：如果方式1失败，尝试从文件路径加载
+                    if (bitmap == null && path != null) {
+                        try {
+                            bitmap = BitmapFactory.decodeFile(path);
+                            Log.d(TAG, "从文件路径加载图片成功");
+                        } catch (Exception e) {
+                            Log.e(TAG, "从文件路径加载图片失败", e);
+                        }
+                    }
+
+                    // 方式3：如果前两种方式都失败，尝试使用ContentResolver
+                    if (bitmap == null) {
+                        try {
+                            InputStream inputStream = resolver.openInputStream(originalUri);
+                            if (inputStream != null) {
+                                bitmap = BitmapFactory.decodeStream(inputStream);
+                                inputStream.close();
+                                Log.d(TAG, "从ContentResolver加载图片成功");
+                            }
+                        } catch (Exception e) {
+                            Log.e(TAG, "从ContentResolver加载图片失败", e);
+                        }
+                    }
+
+                    if (bitmap == null) {
+                        Log.e(TAG, "所有加载方式都失败");
+                        Toast.makeText(NoteEditActivity.this, "获取图片失败: 无法加载图片", Toast.LENGTH_SHORT).show();
+                        return;
+                    }
+
+                    Log.d(TAG, "图片加载成功，尺寸: " + bitmap.getWidth() + "x" + bitmap.getHeight());
+
+                    // 调整图片大小
+                    int maxSize = 1024;
+                    int width = bitmap.getWidth();
+                    int height = bitmap.getHeight();
+                    if (width > maxSize || height > maxSize) {
+                        float scale = Math.min((float) maxSize / width, (float) maxSize / height);
+                        width = Math.round(width * scale);
+                        height = Math.round(height * scale);
+                        Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, width, height, true);
+                        bitmap.recycle(); // 释放原始bitmap
+                        bitmap = scaledBitmap;
+                        Log.d(TAG, "图片已调整大小: " + width + "x" + height);
+                    }
+
+                    // 创建ImageSpan对象
+                    Log.d(TAG, "开始创建ImageSpan，bitmap尺寸: " + bitmap.getWidth() + "x" + bitmap.getHeight());
+                    
+                    // 调整图片大小
+                    int maxWidth = 768; // 最大宽度
+                    float scale = (float) maxWidth / bitmap.getWidth();
+                    int newWidth = (int) (bitmap.getWidth() * scale);
+                    int newHeight = (int) (bitmap.getHeight() * scale);
+                    
+                    Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, newWidth, newHeight, true);
+                    bitmap.recycle();
+                    bitmap = scaledBitmap;
+                    
+                    Log.d(TAG, "调整后的图片尺寸: " + newWidth + "x" + newHeight);
+                    
+                    // 创建Drawable
+                    Drawable drawable = new BitmapDrawable(getResources(), bitmap);
+                    drawable.setBounds(0, 0, newWidth, newHeight);
+                    
+                    // 创建ImageSpan
+                    ImageSpan imageSpan = new ImageSpan(drawable);
+                    Log.d(TAG, "ImageSpan创建成功");
+
+                    // 获取EditText和光标位置
+                    NoteEditText noteEditText = (NoteEditText) findViewById(R.id.note_edit_view);
+                    if (noteEditText == null) {
+                        Log.e(TAG, "noteEditText为null");
+                        return;
+                    }
+                    Log.d(TAG, "获取到noteEditText");
+
+                    int index = noteEditText.getSelectionStart();
+                    if (index < 0) {
+                        index = 0;
+                    }
+                    Log.d(TAG, "当前光标位置: " + index);
+
+                    // 获取当前文本
+                    Editable edit_text = noteEditText.getEditableText();
+                    if (edit_text == null) {
+                        Log.e(TAG, "edit_text为null");
+                        return;
+                    }
+                    Log.d(TAG, "获取到edit_text，长度: " + edit_text.length());
+
+                    // 创建新的SpannableString
+                    SpannableString spannableString = new SpannableString(" ");
+                    spannableString.setSpan(imageSpan, 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+                    Log.d(TAG, "SpannableString创建成功");
+
+                    // 插入图片
+                    edit_text.insert(index, spannableString);
+                    Log.d(TAG, "图片插入成功，当前文本长度: " + edit_text.length());
+
+                    // 保存图片路径到数据库
+                    String imagePath = "[local]" + path + "[/local]";
+                    mWorkingNote.mContent = noteEditText.getText().toString();
+                    Log.d(TAG, "保存的图片路径: " + imagePath);
+
+                    // 更新数据库
                     ContentResolver contentResolver = getContentResolver();
                     ContentValues contentValues = new ContentValues();
                     final long id = mWorkingNote.getNoteId();
                     contentValues.put("snippet", String.valueOf(mWorkingNote));
+                    contentValues.put("has_attachment", 1); // 标记有附件
                     contentResolver.update(Uri.parse("content://micode_notes/note"), contentValues, "_id=?", new String[]{"" + id});
+                    
                     ContentValues contentValues1 = new ContentValues();
                     contentValues1.put("content", mWorkingNote.mContent);
+                    contentValues1.put("mime_type", "vnd.android.cursor.item/text_note");
                     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();
+                    // 保存图片数据
+                    ContentValues imageValues = new ContentValues();
+                    imageValues.put("note_id", id);
+                    imageValues.put("mime_type", "image/*");
+                    imageValues.put("content", path); // 使用content列存储图片路径
+                    imageValues.put("data1", 0); // 使用data1存储图片类型
+                    imageValues.put("data3", ""); // 使用data3存储额外信息
+                    contentResolver.insert(Uri.parse("content://micode_notes/data"), imageValues);
+
+                    Log.d(TAG, "数据库更新成功");
+
+                    // 强制刷新EditText显示
+                    noteEditText.invalidate();
+                    noteEditText.requestLayout();
+                    Log.d(TAG, "EditText刷新完成");
+
+                    // 检查图片是否真的插入
+                    Spannable spannable = noteEditText.getText();
+                    ImageSpan[] spans = spannable.getSpans(0, spannable.length(), ImageSpan.class);
+                    Log.d(TAG, "当前文本中的ImageSpan数量: " + spans.length);
+                    if (spans.length > 0) {
+                        Log.d(TAG, "第一个ImageSpan的位置: " + spannable.getSpanStart(spans[0]) + " - " + spannable.getSpanEnd(spans[0]));
+                        Drawable d = spans[0].getDrawable();
+                        if (d != null) {
+                            Log.d(TAG, "ImageSpan drawable尺寸: " + d.getIntrinsicWidth() + "x" + d.getIntrinsicHeight());
+                        }
+                    }
+
+                    // 重新设置文本以确保ImageSpan被保存
+                    noteEditText.setText(noteEditText.getText());
+
+                } catch (SecurityException e) {
+                    Log.e(TAG, "获取图片失败: 权限不足", e);
+                    Toast.makeText(NoteEditActivity.this, "获取图片失败: 应用没有足够的权限", Toast.LENGTH_SHORT).show();
+                } catch (Exception e) {
+                    Log.e(TAG, "获取图片失败: 未知错误", e);
+                    Toast.makeText(NoteEditActivity.this, "获取图片失败: " + e.getMessage(), Toast.LENGTH_SHORT).show();
                 }
                 break;
             default:
@@ -1126,10 +1336,47 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                     continue;
                 }
 
-                // 尝试加载图片
-                Bitmap bitmap = BitmapFactory.decodeFile(path);
+                // 尝试多种方式加载图片
+                Bitmap bitmap = null;
+                
+                // 方式1：直接从文件加载
+                try {
+                    bitmap = BitmapFactory.decodeFile(path);
+                    Log.d(TAG, "Successfully loaded image from file");
+                } catch (Exception e) {
+                    Log.e(TAG, "Failed to load image from file", e);
+                }
+
+                // 方式2：如果方式1失败，尝试使用ContentResolver
+                if (bitmap == null) {
+                    try {
+                        Uri uri = Uri.fromFile(imageFile);
+                        InputStream inputStream = getContentResolver().openInputStream(uri);
+                        if (inputStream != null) {
+                            bitmap = BitmapFactory.decodeStream(inputStream);
+                            inputStream.close();
+                            Log.d(TAG, "Successfully loaded image using ContentResolver");
+                        }
+                    } catch (Exception e) {
+                        Log.e(TAG, "Failed to load image using ContentResolver", e);
+                    }
+                }
+
                 if (bitmap != null) {
-                    ImageSpan imageSpan = new ImageSpan(this, bitmap);
+                    // 调整图片大小
+                    int maxSize = 1024;
+                    int width = bitmap.getWidth();
+                    int height = bitmap.getHeight();
+                    if (width > maxSize || height > maxSize) {
+                        float scale = Math.min((float) maxSize / width, (float) maxSize / height);
+                        width = Math.round(width * scale);
+                        height = Math.round(height * scale);
+                        Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, width, height, true);
+                        bitmap.recycle();
+                        bitmap = scaledBitmap;
+                    }
+
+                    ImageSpan imageSpan = new ImageSpan(this, bitmap, ImageSpan.ALIGN_BASELINE);
                     SpannableString spannableString = new SpannableString(matcher.group());
                     spannableString.setSpan(imageSpan, 0, spannableString.length(), 
                         Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
diff --git a/src/Notes-master/app/src/main/java/net/micode/notes/ui/NoteEditText.java b/src/Notes-master/app/src/main/java/net/micode/notes/ui/NoteEditText.java
index 8f88208..ee49ed1 100644
--- a/src/Notes-master/app/src/main/java/net/micode/notes/ui/NoteEditText.java
+++ b/src/Notes-master/app/src/main/java/net/micode/notes/ui/NoteEditText.java
@@ -17,11 +17,16 @@
 package net.micode.notes.ui;
 
 import android.content.Context;
+import android.graphics.Canvas;
 import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
 import android.text.Layout;
 import android.text.Selection;
+import android.text.Spannable;
 import android.text.Spanned;
+import android.text.SpannableString;
 import android.text.TextUtils;
+import android.text.style.ImageSpan;
 import android.text.style.URLSpan;
 import android.util.AttributeSet;
 import android.util.Log;
@@ -34,13 +39,17 @@ import android.widget.EditText;
 
 import net.micode.notes.R;
 
+import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 
 public class NoteEditText extends androidx.appcompat.widget.AppCompatEditText {
     private static final String TAG = "NoteEditText";
     private int mIndex;
     private int mSelectionStartBeforeDelete;
+    private long mLastDrawTime = 0;
+    private static final long DRAW_INTERVAL = 16; // 约60fps
 
     private static final String SCHEME_TEL = "tel:" ;
     private static final String SCHEME_HTTP = "http:" ;
@@ -77,26 +86,37 @@ public class NoteEditText extends androidx.appcompat.widget.AppCompatEditText {
 
     private OnTextViewChangeListener mOnTextViewChangeListener;
 
-    public NoteEditText(Context context) {
-        super(context, null);
-        mIndex = 0;
-    }
+    private SpannableString mSpannableString;
+    private List<ImageSpan> mImageSpans;
 
-    public void setIndex(int index) {
-        mIndex = index;
+    public NoteEditText(Context context) {
+        super(context);
+        init();
     }
 
-    public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
-        mOnTextViewChangeListener = listener;
+    private void init() {
+        mImageSpans = new ArrayList<>();
+        mSpannableString = null;
+        mIndex = 0;
+        Log.d(TAG, "NoteEditText初始化完成");
     }
 
     public NoteEditText(Context context, AttributeSet attrs) {
-        super(context, attrs, android.R.attr.editTextStyle);
+        super(context, attrs);
+        init();
     }
 
     public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
-        // TODO Auto-generated constructor stub
+        init();
+    }
+
+    public void setIndex(int index) {
+        mIndex = index;
+    }
+
+    public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
+        mOnTextViewChangeListener = listener;
     }
 
     @Override
@@ -214,4 +234,126 @@ public class NoteEditText extends androidx.appcompat.widget.AppCompatEditText {
         }
         super.onCreateContextMenu(menu);
     }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        long currentTime = System.currentTimeMillis();
+        if (currentTime - mLastDrawTime < DRAW_INTERVAL) {
+            super.onDraw(canvas);
+            return;
+        }
+        mLastDrawTime = currentTime;
+
+        super.onDraw(canvas);
+        
+        // 只在有ImageSpan时进行处理
+        if (mImageSpans != null && !mImageSpans.isEmpty() && mSpannableString != null) {
+            Layout layout = getLayout();
+            if (layout == null) return;
+
+            for (ImageSpan span : mImageSpans) {
+                Drawable drawable = span.getDrawable();
+                if (drawable != null) {
+                    int start = mSpannableString.getSpanStart(span);
+                    int end = mSpannableString.getSpanEnd(span);
+                    if (start >= 0 && end > start) {
+                        int line = layout.getLineForOffset(start);
+                        int baseline = layout.getLineBaseline(line);
+                        
+                        // 计算图片位置
+                        float x = layout.getPrimaryHorizontal(start);
+                        float y = baseline - drawable.getIntrinsicHeight();
+                        
+                        // 设置图片边界
+                        drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
+                        
+                        // 保存画布状态
+                        canvas.save();
+                        // 移动到正确的位置
+                        canvas.translate(x, y);
+                        // 绘制图片
+                        drawable.draw(canvas);
+                        // 恢复画布状态
+                        canvas.restore();
+                        
+                        Log.d(TAG, "绘制图片: 位置(" + x + "," + y + "), 尺寸: " + 
+                            drawable.getIntrinsicWidth() + "x" + drawable.getIntrinsicHeight());
+                    }
+                }
+            }
+        }
+    }
+
+    @Override
+    public void setText(CharSequence text, BufferType type) {
+        if (mImageSpans == null) {
+            mImageSpans = new ArrayList<>();
+        }
+        mImageSpans.clear();
+        
+        if (text instanceof SpannableString) {
+            mSpannableString = (SpannableString) text;
+            ImageSpan[] spans = mSpannableString.getSpans(0, mSpannableString.length(), ImageSpan.class);
+            for (ImageSpan span : spans) {
+                mImageSpans.add(span);
+            }
+            Log.d(TAG, "setText: 从SpannableString中获取到 " + spans.length + " 个ImageSpan");
+        } else if (text instanceof Spannable) {
+            Spannable spannable = (Spannable) text;
+            ImageSpan[] spans = spannable.getSpans(0, spannable.length(), ImageSpan.class);
+            // 创建新的SpannableString并保留所有span
+            mSpannableString = new SpannableString(spannable);
+            for (ImageSpan span : spans) {
+                int start = spannable.getSpanStart(span);
+                int end = spannable.getSpanEnd(span);
+                int flags = spannable.getSpanFlags(span);
+                mSpannableString.setSpan(span, start, end, flags);
+                mImageSpans.add(span);
+            }
+            Log.d(TAG, "setText: 从Spannable中获取到 " + spans.length + " 个ImageSpan");
+        } else {
+            mSpannableString = new SpannableString(text);
+        }
+        
+        super.setText(mSpannableString, BufferType.SPANNABLE);
+        
+        // 验证ImageSpan是否保留
+        if (mSpannableString != null) {
+            ImageSpan[] spans = mSpannableString.getSpans(0, mSpannableString.length(), ImageSpan.class);
+            Log.d(TAG, "setText后验证: SpannableString中的ImageSpan数量: " + spans.length);
+        }
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+        Log.d(TAG, "onMeasure被调用，宽度: " + getMeasuredWidth() + ", 高度: " + getMeasuredHeight());
+    }
+
+    @Override
+    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
+        super.onLayout(changed, left, top, right, bottom);
+        Log.d(TAG, "onLayout被调用，changed: " + changed);
+        
+        // 强制重新计算布局
+        if (changed) {
+            requestLayout();
+        }
+    }
+
+    @Override
+    public void invalidate() {
+        // 减少不必要的重绘
+        if (mImageSpans != null && !mImageSpans.isEmpty()) {
+            super.invalidate();
+        }
+    }
+
+    @Override
+    public void requestLayout() {
+        // 减少不必要的布局请求
+        if (mImageSpans != null && !mImageSpans.isEmpty()) {
+            super.requestLayout();
+        }
+    }
 }
diff --git a/src/Notes-master/app/src/main/java/net/micode/notes/ui/NotesListActivity.java b/src/Notes-master/app/src/main/java/net/micode/notes/ui/NotesListActivity.java
index 838db90..3e18ddc 100644
--- a/src/Notes-master/app/src/main/java/net/micode/notes/ui/NotesListActivity.java
+++ b/src/Notes-master/app/src/main/java/net/micode/notes/ui/NotesListActivity.java
@@ -555,6 +555,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     }
 
     private void openNode(NoteItemData data) {
+        // 检查便签是否为私密便签且当前不在私密模式下
+        if (data.isPrivate && !mIsPrivacyMode) {
+            Toast.makeText(this, R.string.cannot_open_private_note, Toast.LENGTH_SHORT).show();
+            return;
+        }
+        
         Intent intent = new Intent(this, NoteEditActivity.class);
         intent.setAction(Intent.ACTION_VIEW);
         intent.putExtra(Intent.EXTRA_UID, data.getId());
diff --git a/src/Notes-master/app/src/main/res/layout/note_edit.xml b/src/Notes-master/app/src/main/res/layout/note_edit.xml
index a4d18ee..abddff7 100644
--- a/src/Notes-master/app/src/main/res/layout/note_edit.xml
+++ b/src/Notes-master/app/src/main/res/layout/note_edit.xml
@@ -97,6 +97,9 @@
                         android:lineSpacingMultiplier="1.2"
                         android:linksClickable="false"
                         android:minLines="12"
+                        android:textIsSelectable="true"
+                        android:scrollbars="vertical"
+                        android:fadeScrollbars="false"
                         android:textAppearance="@style/TextAppearancePrimaryItem" />
 
                     <LinearLayout
diff --git a/src/Notes-master/app/src/main/res/values/strings.xml b/src/Notes-master/app/src/main/res/values/strings.xml
index eea1582..f16feaf 100644
--- a/src/Notes-master/app/src/main/res/values/strings.xml
+++ b/src/Notes-master/app/src/main/res/values/strings.xml
@@ -148,4 +148,6 @@
 
     <string name="menu_new_folder">新建文件夹</string>
 
+    <string name="cannot_open_private_note">无法在非私密模式下打开私密便签</string>
+
 </resources>