AD

src/Notes-master/app/src/main/java/net/micode/notes/widget/NoteWidgetProvider.java

@@ -60,6 +60,7 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
     private static final String TAG = "NoteWidgetProvider";
 
     @Override
+    //删除便签程序小部件
     public void onDeleted(Context context, int[] appWidgetIds) {
         ContentValues values = new ContentValues();
         values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
@@ -71,6 +72,7 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
         }
     }
 
+    //获取小部件信息
     private Cursor getNoteWidgetInfo(Context context, int widgetId) {
         return context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
                 PROJECTION,
@@ -79,21 +81,27 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
                 null);
     }
 
+    //更新应用程序小部件
     protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
         update(context, appWidgetManager, appWidgetIds, false);
     }
 
+    //更新
     private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
             boolean privacyMode) {
+        //遍历所有小部件 ID
         for (int i = 0; i < appWidgetIds.length; i++) {
+            //若有效 获取默认背景 ID 和一个空字符串作为 snippet
             if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
                 int bgId = ResourceParser.getDefaultBgId(context);
                 String snippet = "";
+                //创建一个指向 NoteEditActivity 的意图
                 Intent intent = new Intent(context, NoteEditActivity.class);
                 intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
                 intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
                 intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
 
+                //查询以获取有关该小部件的信息
                 Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
                 if (c != null && c.moveToFirst()) {
                     if (c.getCount() > 1) {
@@ -105,7 +113,7 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
                     bgId = c.getInt(COLUMN_BG_COLOR_ID);
                     intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID));
                     intent.setAction(Intent.ACTION_VIEW);
-                } else {
+                } else {//它将 snippet 设置为默认文本，并将意图设置为插入或编辑操作
                     snippet = context.getResources().getString(R.string.widget_havenot_content);
                     intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
                 }
@@ -119,6 +127,7 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
                 intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
                 /**
                  * Generate the pending intent to start host for the widget
+                 * 生成为小组件启动主机的挂起意图
                  */
                 PendingIntent pendingIntent = null;
                 if (privacyMode) {
@@ -138,9 +147,12 @@ public abstract class NoteWidgetProvider extends AppWidgetProvider {
         }
     }
 
+    //获取 Bg 资源标识
     protected abstract int getBgResourceId(int bgId);
 
+    //获取布局标识
     protected abstract int getLayoutId();
 
+    //获取小部件类型
     protected abstract int getWidgetType();
 }