Question

我制作了一个有图像并显示时间的小部件。 howerver，时间无法更新。所以我尝试实现，当用户点击小部件时，时间将更新。我发现一些教程说使用setOnClickPendingIntent可以做到这一点，但我的代码不起作用。

任何解决方案都可以让小部件更新时间onClick或自动更新？

public class NewAppWidget extends AppWidgetProvider {

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


    CharSequence widgetText =   DateFormat.getTimeInstance(DateFormat.SHORT).format(new Date());;
    // Construct the RemoteViews object
    RemoteViews updateViews = new RemoteViews(context.getPackageName(), R.layout.new_app_widget);

    Intent intent = new Intent(context, NewAppWidget.class);
    PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
    updateViews.setOnClickPendingIntent(R.id.imageView, pendingIntent);

    updateViews.setTextViewText(R.id.editText2, widgetText);

    // Instruct the widget manager to update the widget
    appWidgetManager.updateAppWidget(appWidgetId, updateViews);
}

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

    // There may be multiple widgets active, so update all of them
    for (int appWidgetId : appWidgetIds) {
        updateAppWidget(context, appWidgetManager, appWidgetId);
    }
}

@Override
public void onEnabled(Context context) {
    // Enter relevant functionality for when the first widget is created
}

@Override
public void onDisabled(Context context) {
    // Enter relevant functionality for when the last widget is disabled
}

}

Answer 1

像这样改变你PendingIntent

Intent intent = new Intent()
intent.putExtra(EXTRA_VALUES, values)
intent.setComponent(new ComponentName(context, NewAppWidget.class));
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, 
    PendingIntent.FLAG_UPDATE_CURRENT);

在Android小部件

1 个答案: