RemoteViews 上的 partiallyUpdateAppWidget 不起作用

Question

在 AppWidget 的 RemoteViews 中，我有一个 AdapterViewFlipper，当用户单击 AppWidget 中的按钮时，它应该翻转。根据官方文档，这应该通过调用 showNext on the RemoteViews. The AppWdiget should then be updated with partiallyUpdateAppWidget 来完成，文档中甚至有 showNext() 函数作为示例。我已经尝试过实现这个，但我很可能犯了一些我似乎无法弄清楚的愚蠢错误。

public class WidgetProvider extends AppWidgetProvider {

    public static final String NEXT = "next";

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        for (int appWidgetId : appWidgetIds) {
            RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_layout);

            Intent nextIntent = new Intent(context, WidgetProvider.class);
            nextIntent.setAction(NEXT);
            views.setOnClickPendingIntent(R.id.next_button,
                    PendingIntent.getBroadcast(context, appWidgetId, nextIntent,
                            PendingIntent.FLAG_UPDATE_CURRENT));

            views.setRemoteAdapter(R.id.view_flipper, new Intent(context,
                    WidgetRemoteViewService.class));

            appWidgetManager.updateAppWidget(appWidgetId, views);
        }
        super.onUpdate(context, appWidgetManager, appWidgetIds);
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        if(intent.getAction().equals(NEXT)) {
            RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
                    R.layout.widget_layout);
            remoteViews.showNext(R.id.view_flipper);
            AppWidgetManager.getInstance(context).partiallyUpdateAppWidget(
                    AppWidgetManager.getInstance(context).getAppWidgetIds(
                            new ComponentName(context, WidgetProvider.class)),
                            remoteViews);
        }
        super.onReceive(context, intent);
    }
}

当用 updateAppWidget 替换 partiallyUpdateAppWidget 时，下一个按钮一直有效，直到方向改变或 phone 进入睡眠状态，这会强制重绘上次存储的 RemoteViews .这让我相信我犯的错误与部分更新有关，但我无法弄清楚我做错了什么。

Answer 1

你在哪个 API 级别测试？

也许 withpartiallyUpdateAppWidget 的问题与这个未解决的问题有关 issuetracker.google.com/issues/37136552

RemoteViews 上的 partiallyUpdateAppWidget 不起作用

partiallyUpdateAppWidget on RemoteViews not working

android

android-appwidget

android-remoteview

android-appwidget-list