android – 在Homescreen小部件的listview上方添加一个按钮 – 如何捕获单击此按钮?
作者:互联网
我正在使用RemoteViewsService.RemoteViewsFactory(link)
在主屏幕小部件中显示列表视图.一切正常,我可以捕获listview项目的点击.现在我想在listview上方添加一个按钮,以允许用户跳转到配置活动:
这是我的小部件布局xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="8dip"
android:background="@drawable/widget_frame"
android:orientation="vertical" >
<Button
android:id="@+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
<ListView android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:layout_marginLeft="0dp"/>
</LinearLayout>
这是我在WidgetProvider.java类中的onUpdate方法:
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
Log.w(LOG, "onUpdate method called");
for (int i=0; i<appWidgetIds.length; i++) {
Intent svcIntent=new Intent(context, WidgetService.class);
svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
// https://stackoverflow.com/questions/13199904/android-home-screen-widget-remoteviews-setremoteadapter-method-not-working
Random generator = new Random();
int randomNumber = generator.nextInt(1000);
svcIntent.putExtra("random", randomNumber);
svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME)));
RemoteViews remoteviews=new RemoteViews(context.getPackageName(), R.layout.widget_layout);
//------------------------------------------------------------------------------------
// trying to capture the button click ... ?
RemoteViews btn_remoteviews=new RemoteViews(context.getPackageName(), R.id.button1);
Intent btn_clickIntent = new Intent(context, Config.class);
btn_clickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
//PendingIntent btn_pendingIntent = PendingIntent.getBroadcast(context, appWidgetIds[i], btn_clickIntent, 0);
PendingIntent btn_pendingIntent = PendingIntent.getActivity(context, 0, btn_clickIntent, PendingIntent.FLAG_UPDATE_CURRENT);
btn_remoteviews.setPendingIntentTemplate(R.id.button1, btn_pendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds[i], btn_remoteviews);
//------------------------------------------------------------------------------------
remoteviews.setRemoteAdapter(appWidgetIds[i], R.id.listview, svcIntent);
Intent clickIntent=new Intent(context, LoremActivity.class);
clickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
PendingIntent clickPI=PendingIntent.getActivity(context, 0, clickIntent, PendingIntent.FLAG_UPDATE_CURRENT);
remoteviews.setPendingIntentTemplate(R.id.listview, clickPI);
appWidgetManager.updateAppWidget(appWidgetIds[i], remoteviews);
}
super.onUpdate(context, appWidgetManager, appWidgetIds);
}
如何捕获按钮单击???
我的列表视图上的所有点击都被捕获但我无法捕获listview上方按钮的点击???
非常感谢你的帮助!
解决方法:
如您提供的页面所述:
This AppWidgetProvider defines only the onUpdate() method for the
purpose of defining a PendingIntent that launches an Activity and
attaching it to the App Widget’s button with
setOnClickPendingIntent(int, PendingIntent). Notice that it includes a
loop that iterates through each entry in appWidgetIds, which is an
array of IDs that ide
也:
As described in Using the AppWidgetProvider Class, you normally use
setOnClickPendingIntent() to set an object’s click behavior—such as to
cause a button to launch an Activity. But this approach is not allowed
for child views in an individual collection item (to clarify, you
could use setOnClickPendingIntent() to set up a global button in the
Gmail app widget that launches the app, for example, but not on the
individual list items). Instead, to add click behavior to individual
items in a collection, you use setOnClickFillInIntent(). This entails
setting up up a pending intent template for your collection view, and
then setting a fill-in intent on each item in the collection via your
RemoteViewsFactory.
您提供的链接中的示例怎么样?我没有仔细阅读那个页面(你肯定应该),但是你不应该setOnClickPendingIntent()或setOnClickFillInIntent()?:
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 button
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.appwidget_provider_layout);
views.setOnClickPendingIntent(R.id.button, pendingIntent);
// Tell the AppWidgetManager to perform an update on the current app widget
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
}
标签:homescreen,android,listview,android-widget 来源: https://codeday.me/bug/20190831/1778186.html