將widget的內容和佈局動態調整爲用戶通過調整大小定義的大小。安卓

Question

Android的設計模式指南說widget的內容和佈局可以動態調整，以用戶通過調整操作這裏定義的尺寸：設計指南中提供Design guide for widgets

例子：

，但我沒有看到文檔中有關如何完成此操作的任何內容。我們如何根據調整大小操作更改佈局？任何想法的方法將不勝感激。

Answer 1

感謝A - C，這是可能的軟糖和以上設備，並且很容易實現。 下面是一個使用onAppWidgetOptionsChanged方法示例代碼

@TargetApi(Build.VERSION_CODES.JELLY_BEAN) 
@Override 
public void onAppWidgetOptionsChanged(Context context, 
     AppWidgetManager appWidgetManager, int appWidgetId, Bundle newOptions) { 

    Log.d(DEBUG_TAG, "Changed dimensions"); 

    // See the dimensions and 
    Bundle options = appWidgetManager.getAppWidgetOptions(appWidgetId); 

    // Get min width and height. 
    int minWidth = options.getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH); 
    int minHeight = options 
      .getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT); 

      // Obtain appropriate widget and update it. 
    appWidgetManager.updateAppWidget(appWidgetId, 
      getRemoteViews(context, minWidth, minHeight)); 

    super.onAppWidgetOptionsChanged(context, appWidgetManager, appWidgetId, 
      newOptions); 
} 

/** 
* Determine appropriate view based on width provided. 
* 
* @param minWidth 
* @param minHeight 
* @return 
*/ 
private RemoteViews getRemoteViews(Context context, int minWidth, 
     int minHeight) { 
    // First find out rows and columns based on width provided. 
    int rows = getCellsForSize(minHeight); 
    int columns = getCellsForSize(minWidth); 

    if (columns == 4) { 
     // Get 4 column widget remote view and return 
    } else { 
        // Get appropriate remote view. 
     return new RemoteViews(context.getPackageName(), 
       R.layout.quick_add_widget_3_1); 
    } 
} 

/** 
* Returns number of cells needed for given size of the widget. 
* 
* @param size Widget size in dp. 
* @return Size in number of cells. 
*/ 
private static int getCellsForSize(int size) { 
    int n = 2; 
    while (70 * n - 30 < size) { 
    ++n; 
    } 
    return n - 1; 
} 

Answer 2

@Choletski @azendh

改變佈局後的一些單擊事件不叫了

我通過創建功能解決了這個問題那setOnClickPendingIntent 在視圖上，然後返回它。

例如代碼如下

private RemoteViews getConfiguredView (RemoteViews remoteViews, Context context){ 

    Intent refreshIntent = new Intent(context, EarningsWidget.class); 
    refreshIntent.setAction(REFRESH_ACTION); 
    PendingIntent toastPendingIntent = PendingIntent.getBroadcast(context, 3, refreshIntent, PendingIntent.FLAG_UPDATE_CURRENT); 
    remoteViews.setOnClickPendingIntent(R.id.refreshButton, toastPendingIntent); 
    return remoteViews; 
} 

而不是函數被調用，你做「獲取相應的遠程視圖」。

return getConfiguredView(new RemoteViews(context.getPackageName(), R.layout.activity_widget), context);