android - 如何在 AppWidgetProvider 中调用 onUpdate()？

Question

这是我的代码...

String[] show = new String[2];
RemoteViews remoteViews;
public static String ACTION_WIDGET_CONFIGURE = "ConfigureWidget";
public static String ACTION_WIDGET_RECEIVER = "ActionReceiverWidget";   

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

    remoteViews = new RemoteViews( context.getPackageName(), R.layout.widget );
    remoteViews.setTextViewText( R.id.widget_title, show[0]);
    remoteViews.setTextViewText( R.id.widget_textview, show[1]);

    Intent configIntent = new Intent(context, SuitAuto.class);
    configIntent.setAction(ACTION_WIDGET_CONFIGURE);

    Intent active = new Intent(context, WordWidget.class);
    active.setAction(ACTION_WIDGET_RECEIVER);
    active.putExtra("msg", "Message for Button 1");

    PendingIntent actionPendingIntent = PendingIntent.getBroadcast(context, 0, active, 0);
    PendingIntent configPendingIntent = PendingIntent.getActivity(context, 0, configIntent, 0);

    remoteViews.setOnClickPendingIntent(R.id.update, actionPendingIntent);
    remoteViews.setOnClickPendingIntent(R.id.Lilo, configPendingIntent);

    appWidgetManager.updateAppWidget(appWidgetIds, remoteViews );
}

private String[] getString() {
    String[] hon = new String[2];
    KamusWidget ad = new KamusWidget(null);
    ad.open();
    hon = ad.getwordday();
    ad.close();
    return hon;
}

@Override
public void onReceive(Context context, Intent intent) {
    // v1.5 fix that doesn't call onDelete Action
    final String action = intent.getAction();
    if (AppWidgetManager.ACTION_APPWIDGET_DELETED.equals(action)) {
        final int appWidgetId = intent.getExtras().getInt(
                AppWidgetManager.EXTRA_APPWIDGET_ID,
                AppWidgetManager.INVALID_APPWIDGET_ID);

        if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) {
            this.onDeleted(context, new int[] { appWidgetId });
        }
    } else {
        // check, if our Action was called
        if (intent.getAction().equals(ACTION_WIDGET_RECEIVER)) {
            String msg = "null";
            try {
                msg = intent.getStringExtra("msg");
            } catch (NullPointerException e) {
                Log.e("Error", "msg = null");
            }
            Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();


        } else {
            // do nothing
        }

        super.onReceive(context, intent);
    }
}

 }

我只想在点击 R.id.update 时更新 widget_title 和 widget_textview 它应该运行函数 getString 从其他类中获取字符串，以便新字符串可以传递给 TextView ...

有什么想法吗？

Answer 1

在 onReceive 函数的末尾，您应该能够创建 RemoteView 并更新小部件:

ComponentName name = new ComponentName(context, WordWidget.class);
int[] ids = appWidgetManager.getAppWidgetIds(name);
if(ids != null && ids.length > 0){
RemoteView remoteViews = new RemoteViews( context.getPackageName(), R.layout.widget );
remoteViews.setTextViewText( R.id.widget_title, context.getString(R.id.new_widget_title));
remoteViews.setTextViewText( R.id.widget_textview, context.getString(R.id.new_widget_text));

Intent configIntent = new Intent(context, SuitAuto.class);
configIntent.setAction(ACTION_WIDGET_CONFIGURE);

Intent active = new Intent(context, WordWidget.class);
active.setAction(ACTION_WIDGET_RECEIVER);
active.putExtra("msg", "Message for Button 1");

PendingIntent actionPendingIntent = PendingIntent.getBroadcast(context, 0, active, 0);
PendingIntent configPendingIntent = PendingIntent.getActivity(context, 0, configIntent, 0);

remoteViews.setOnClickPendingIntent(R.id.update, actionPendingIntent);
remoteViews.setOnClickPendingIntent(R.id.Lilo, configPendingIntent);

appWidgetManager.updateAppWidget(ids, remoteViews );
}

我相信您还需要设置 Intents:如果您不这样做，则在更新 RemoteView 后按钮将不再起作用。