Nur eine Instanz von AppWidget aktualisieren

Question

Ich erstelle ein Android-Homescreen-Widget mit klickbarer Schaltfläche. Nach dem Klicken auf den Button aktualisiere ich TextView mit Daten von SharedPreferences. Ich weiß nicht, was ich falsch mache, aber nach dem Klicken auf die Schaltfläche werden alle Instanzen des Widgets aktualisiert. Wie aktualisiere ich nur das angeklickte Widget?

TestWidgetConfiguration:

public class TestWidgetConfiguration extends Activity { 
    Button confirm; 
    EditText edit; 
    int mAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     setResult(RESULT_CANCELED); 
     setContentView(R.layout.testwidgetconfiguration); 

     confirm = (Button)findViewById(R.id.button1); 
     confirm.setOnClickListener(confirmListener); 

     edit = (EditText)findViewById(R.id.editText1); 

     Intent intent = getIntent(); 
     Bundle extras = intent.getExtras(); 

     if(extras != null) { 
      mAppWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); 
     } 

     if(mAppWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID) { 
      finish(); 
     } 
    } 

    private Button.OnClickListener confirmListener = new Button.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      Intent resultValue = new Intent(); 
      resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId); 

      SharedPreferences prefs = getSharedPreferences("prefs", 0); 
      SharedPreferences.Editor editor = prefs.edit(); 
      editor.putInt("id:"+mAppWidgetId, Integer.parseInt(edit.getText().toString())); 
      editor.commit(); 

      AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(TestWidgetConfiguration.this); 
      TestWidget.updateAppWidget(TestWidgetConfiguration.this, appWidgetManager, mAppWidgetId); 

      setResult(RESULT_OK, resultValue); 
      finish(); 
     } 
    }; 
} 

TestWidget:

public class TestWidget extends AppWidgetProvider { 
    public static String ACTION = "TestAction"; 
    public static String URI_SCHEME ="ASD"; 

    @Override 
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { 
     super.onUpdate(context, appWidgetManager, appWidgetIds); 

     Toast.makeText(context, "onUpdate()", Toast.LENGTH_SHORT).show(); 
    } 

    public static void updateAppWidget(Context context, AppWidgetManager appWidgetManager, int appWidgetId) { 
     SharedPreferences prefs = context.getSharedPreferences("prefs", 0); 
     int id = prefs.getInt("id:"+appWidgetId, 0); 

     RemoteViews updateViews = new RemoteViews(context.getPackageName(), R.layout.testwidget); 
     updateViews.setTextViewText(R.id.textView2, "[" + String.valueOf(appWidgetId) + "]" + id); 

     Intent intent = new Intent(context, TestWidget.class); 
     intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId); 
     intent.setAction(ACTION); 

     PendingIntent pendingIntent = PendingIntent.getBroadcast(context, appWidgetId, intent, 0); 
     //Uri data = Uri.withAppendedPath(
     //  Uri.parse(URI_SCHEME + "://widget/id/") 
     //  ,String.valueOf(appWidgetId)); 
     //intent.setData(data); 

     updateViews.setOnClickPendingIntent(R.id.button1, pendingIntent); 
     appWidgetManager.updateAppWidget(appWidgetId, updateViews); 

     Toast.makeText(context, "updateAppWidget(): " + String.valueOf(appWidgetId) + "\n", Toast.LENGTH_LONG).show(); 
    } 

    @Override 
    public void onReceive(Context context, Intent intent) { 
     super.onReceive(context, intent); 

     Toast.makeText(context, "onReceive()", Toast.LENGTH_SHORT).show(); 

     if (ACTION.equals(intent.getAction())) { 
      int idd = 0; 
      Bundle extras = intent.getExtras(); 

      if(extras != null) { 
       idd = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID); 
      } 

      Toast.makeText(context, "id: " + idd, Toast.LENGTH_SHORT).show(); 

      SharedPreferences prefs = context.getSharedPreferences("prefs", 0); 
      int id = prefs.getInt("id:"+idd, 0); 

      RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.testwidget); 
      rv.setTextViewText(R.id.textView1, "lala" + id); 

      ComponentName testWidget = new ComponentName(context, TestWidget.class); 
      AppWidgetManager manager = AppWidgetManager.getInstance(context); 
      manager.updateAppWidget(testWidget, rv); 
     } 
    } 
} 

Answer 1

Lösung:

Bundle extras = intent.getExtras(); 
if(extras != null) { 
    idd = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID); 
} 

... 

manager.updateAppWidget(id, rv); // change 

Answer 2

In TestWidget#onReceive ändern Sie die folgende Zeile:

manager.updateAppWidget(testWidget, rv); 

zu

manager.updateAppWidget(idd, rv); 

Es ist IDD nicht ID, wie Ziem in den Kommentar schrieb.