开发人员文档似乎在这里失败了.我可以毫不犹豫地创建一个静态小部件,我甚至可以创建一个类似于模拟时钟小部件的小部件来更新自己,但是,我不能在我的生活中弄清楚如何创建一个小部件来响应用户点击的时间它.以下是开发人员文档为小部件活动应包含的内容提供的最佳代码示例(唯一的其他提示是API演示,仅创建静态小部件):
public class ExampleAppWidgetProvider extends AppWidgetProvider {
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
final int N = appWidgetIds.length;
// Perform this loop procedure for each App Widget that belongs to this provider
for (int i=0; i<N; i++) {
int appWidgetId = appWidgetIds[i];
// Create an Intent to launch ExampleActivity
Intent intent = new Intent(context, ExampleActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
// Get the layout for the App Widget and attach an on-click listener to the …Run Code Online (Sandbox Code Playgroud) 我正在开发一个 android 小部件。在小部件中,我有一个文本字段和两个按钮。当我按下 button1 时,我希望文本字段显示某个文本,例如“one”,如果我单击 button2,则文本字段将显示为“2”。
onUpdate() 看起来像这样:
@Override public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds){ super.onUpdate(context, appWidgetManager, appWidgetIds);
remoteViews = new RemoteViews(context.getPackageName(), R.layout.activity_main);
Intent intent = new Intent(context, CalculatorReceiver.class);
intent.setAction(ACTION_WIDGET_RECEIVER);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds);
PendingIntent actionPendingIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
remoteViews.setOnClickPendingIntent(R.id.one, actionPendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds, remoteViews); }
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onReceive() 方法如下所示:
@Override public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
if(intent.getAction().equals(ACTION_WIDGET_RECEIVER)){
Toast.makeText(context, "Hi I'm 1", Toast.LENGTH_LONG).show();
}}
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现在,在小部件中,我只能在按下按钮时显示 Toast,但我想获取 textView 并更改其值。如何获取和更改 textView?