我正在尝试创建我的第一个应用小部件,我希望能够在点击某个项目时启动某个活动,但它无效。 这是我在onUpdate()中的代码:
Intent toastIntent = new Intent(context, TareaModificar.class);
toastIntent.putExtra("id", id);
PendingIntent toastPendingIntent = PendingIntent.getBroadcast(context, 0, toastIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
remoteViews.setPendingIntentTemplate(R.id.widget_tareas_listview, toastPendingIntent);
和我的getViewAt()代码:
Bundle extras = new Bundle();
extras.putInt(WidgetTareas.id, cursor.getInt(0));
Intent fillInIntent = new Intent();
fillInIntent.putExtras(extras);
remoteView.setOnClickFillInIntent(R.id.widget_tareas, fillInIntent);
id是小部件提供程序中的全局字符串变量。
编辑我提供了所有代码,也许通过这种方式提供帮助更容易:
AppWidgetProvider代码:
public class WidgetTareas extends AppWidgetProvider {
private String TAG = getClass().getSimpleName();
private DbAdapter dbAdapter;
public static final String id = "1";
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
for (int i = 0; i < appWidgetIds.length; ++i) {
Log.d(TAG,"Se actualiza el widget: " +i);
RemoteViews remoteViews = updateWidgetListView(context,
appWidgetIds[i]);
appWidgetManager.updateAppWidget(appWidgetIds[i],
remoteViews);
}
super.onUpdate(context, appWidgetManager, appWidgetIds);
}
private RemoteViews updateWidgetListView(Context context,
int appWidgetId) {
dbAdapter = new DbAdapter(context);
dbAdapter.actualizaQueda(0);
//which layout to show on widget
RemoteViews remoteViews = new RemoteViews(context.getPackageName(),R.layout.widget_tareas);
//RemoteViews Service needed to provide adapter for ListView
Intent svcIntent = new Intent(context, WidgetTareasService.class);
//passing app widget id to that RemoteViews Service
svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
//setting a unique Uri to the intent
//don't know its purpose to me right now
svcIntent.setData(Uri.parse(
svcIntent.toUri(Intent.URI_INTENT_SCHEME)));
//setting adapter to listview of the widget
remoteViews.setRemoteAdapter(appWidgetId, R.id.widget_tareas_listview,
svcIntent);
Intent toastIntent = new Intent(context, TareaModificar.class);
toastIntent.putExtra("id", id);
toastIntent.setAction("ACTION_SHOW_TOAST");
PendingIntent toastPendingIntent = PendingIntent.getBroadcast(context, 0, toastIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
remoteViews.setPendingIntentTemplate(R.id.widget_tareas_listview, toastPendingIntent);
return remoteViews;
}
@Override
public void onReceive(@NonNull Context context, @NonNull Intent intent) {
super.onReceive(context, intent);
Toast.makeText(context, "Intent received", Toast.LENGTH_SHORT).show();
switch (intent.getAction()) {
case "ACTION_SHOW_TOAST":
//change your activity name
int id = intent.getIntExtra("id", -1);
context.startActivity(new Intent(context,
TareaModificar.class)
.setFlags(
Intent.FLAG_ACTIVITY_NEW_TASK));
break;
}
}
}
RemoteViewsFactory代码:
@Override
public RemoteViews getViewAt(int position) {
if (position == 0)
cursor = dbAdapter.getTareasOrdenadoHacer(0);
RemoteViews remoteView = new RemoteViews(
context.getPackageName(), R.layout.a);
Log.d(TAG,"Se carga la factoría");
cursor.moveToPosition(position);
String a = cursor.getString(cursor.getColumnIndex(dbAdapter.COL_A));
remoteView.setTextViewText(R.id.tarea_widget_aa, dbAdapter.getAA(a));
remoteView.setTextViewText(R.id.tarea_widget_tt, cursor.getString(cursor.getColumnIndex(dbAdapter.COL_T)));
String queda = context.getString(R.string.en) +" "+ cursor.getString(cursor.getColumnIndex(dbAdapter.COL_Q)) +" "+context.getString(R.string.dias);
remoteView.setTextViewText(R.id.tarea_widget_q, queda);
remoteView.setTextViewText(R.id.tarea_widget_pos, position);
// Next, we set a fill-intent which will be used to fill-in the pending intent template
// which is set on the collection view in StackWidgetProvider.
Bundle extras = new Bundle();
extras.putInt(WidgetTareas.id, cursor.getInt(0));
Intent fillInIntent = new Intent();
fillInIntent.putExtras(extras);
remoteView.setOnClickFillInIntent(R.id.widget_tareas, fillInIntent);
return remoteView;
}
小部件布局代码:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/widget_tareas"
android:background="@color/common_action_bar_splitter">
<TextView
android:padding="10dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@color/black"
android:textSize="18sp"
android:background="#E6E6E6"
android:text="@string/tareas"/>
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/widget_tareas_listview"/>
布局代码:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp"
android:id="@+id/widget_tareas_item">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textColor="@color/black"
android:text="99"
android:gravity="center_horizontal"
android:id="@+id/tarea_widget_q"/>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textColor="@color/black"
android:gravity="center_horizontal"
android:text="pos"
android:id="@+id/tarea_widget_pos"/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="10dp"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:textColor="@color/black"
android:id="@+id/tarea_widget_aa" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/black"
android:text="sad"
android:id="@+id/tarea_widget_tt" />
</LinearLayout>
答案 0 :(得分:0)
您必须在窗口小部件提供程序的onReceive中管理操作。
在getViewAt方法中准备你的意图:
Intent toastIntent = new Intent(context, TareaModificar.class);
toastIntent.putExtra("id", id);
toastIntent.setAction("ACTION_SHOW_TOAST");
PendingIntent toastPendingIntent = PendingIntent.getBroadcast(context, 0, toastIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
remoteViews.setPendingIntentTemplate(R.id.widget_tareas_listview, toastPendingIntent);
在你的onReceive中,管理它:
@Override
public void onReceive(@NonNull Context context, @NonNull Intent intent) {
super.onReceive(context, intent);
switch (intent.getAction()) {
case "ACTION_SHOW_TOAST":
//change your activity name
int id = intent.getIntExtra("id", -1);
context.startActivity(new Intent(context,
TareaModificar.class)
.setFlags(
Intent.FLAG_ACTIVITY_NEW_TASK)
break;
}
}