java - onAppWidgetOptionsChanged() 在屏幕上唤醒调用。如何防止这种情况发生？

Question

我有一个日历小部件，我每天中午 12:01 都会自行更新它，并且当大小发生变化时，我不需要自动更新。我还将 updatePeriodMillis 设置为 0。我遇到的问题是 App Widget 调用 onAppWidgetOptionsChanged():

• 每次屏幕解锁
• 每次带你回家

这对我来说不是问题，但问题是您可以瞬间看到应用程序小部件更新。有人知道有什么方法可以防止这种情况发生吗？

此处供引用的是我的 WidgetProvider 类的一部分

@Override
public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();

    if (action != null) {
        if (action.equals(ACTION_REFRESH) || action.equals(ACTION_NEXT) || action.equals(ACTION_PREVIOUS)) {
            context.sendBroadcast(new Intent(action));
        }
    }

    Bundle extra = intent.getExtras();
    if (extra != null && extra.containsKey(KEY_APP_WIDGET_ID)) {
        updateAppWidget(context, AppWidgetManager.getInstance(context), extra.getInt(KEY_APP_WIDGET_ID));
    }
    super.onReceive(context, intent);
}


@Override
public void onAppWidgetOptionsChanged(Context context, AppWidgetManager appWidgetManager, int appWidgetId, Bundle newOptions) {
    int width = Util.dp2px(newOptions.getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH));
    Intent broadcastIntent = new Intent(ACTION_REFRESH);
    broadcastIntent.putExtra(KEY_SIZE_CHANGE, width);
    context.sendBroadcast(broadcastIntent);
    updateAppWidget(context, appWidgetManager, appWidgetId);
    super.onAppWidgetOptionsChanged(context, appWidgetManager, appWidgetId, newOptions);
}

private static void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
        int appWidgetId) {

    RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);

    Intent intent = new Intent(context, WidgetService.class);
    views.setRemoteAdapter(R.id.widget_calendar_container, intent);

    // Buttons on widget click handlers
    views.setOnClickPendingIntent(R.id.widget_refresh, getPendingSelfIntent(context, ACTION_REFRESH, appWidgetId));
    views.setOnClickPendingIntent(R.id.widget_next, getPendingSelfIntent(context, ACTION_NEXT, appWidgetId));
    views.setOnClickPendingIntent(R.id.widget_previous, getPendingSelfIntent(context, ACTION_PREVIOUS, appWidgetId));

    // Widget Container click handler
    Intent homeIntent = new Intent(Intent.ACTION_MAIN);
    homeIntent.addCategory(Intent.CATEGORY_LAUNCHER);
    homeIntent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
    homeIntent.setComponent(new ComponentName(context.getPackageName(), Home.class.getName()));
    PendingIntent homePendingIntent = PendingIntent.getActivity(context, 0, homeIntent, 0);
    views.setPendingIntentTemplate(R.id.widget_calendar_container, homePendingIntent);


    // Instruct the widget manager to update the widget
    appWidgetManager.updateAppWidget(appWidgetId, views);
    appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetId, R.id.widget_calendar_container);
}

Answer 1

我更喜欢另一个答案，但这就是我到目前为止得到的答案。

@Override
    public void onAppWidgetOptionsChanged(Context context, AppWidgetManager appWidgetManager, int appWidgetId, Bundle newOptions) {
        int width = Util.dp2px(newOptions.getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH));
        if (width != WidgetRemoteViewsFactory.width) {
            Intent broadcastIntent = new Intent(ACTION_REFRESH);
            broadcastIntent.putExtra(KEY_SIZE_CHANGE, width);
            LocalBroadcastManager.getInstance(context).sendBroadcast(broadcastIntent);
            updateAppWidget(context, appWidgetManager, appWidgetId);
            super.onAppWidgetOptionsChanged(context, appWidgetManager, appWidgetId, newOptions);
        }
    }

我将我感兴趣的字段设置为 WidgetRemoteViewsFactory 上的静态字段，并且仅在该字段更改时进行广播。我似乎无法阻止 onAppWidgetOptionsChanged() 被调用，因为每次屏幕唤醒时都会广播和接收 AppWidgetManager.ACTION_APPWIDGET_OPTIONS_CHANGED 。

Android 文档说

Called in response to the AppWidgetManager.ACTION_APPWIDGET_OPTIONS_CHANGED broadcast when this widget has been layed out at a new size. - AppWidgetProvider#onAppWidgetOptionsChanged

但是每次屏幕唤醒时都会广播该操作。

如果大家有更好的解决方案，欢迎留言。必须有更好的解决方案，否则这是 Android 方面的错误。