大家好，我在从主屏幕小部件启动活动时遇到问题。在有人将此标记为重复问题之前，请知道我已经环顾四周并尝试了其他类似问题中提到的解决方案。尤其是这个 启动来自小部件的活动
我的问题很简单，我想从我的主屏幕小部件启动一个活动，但它不工作。注意：在全新安装应用程序后，Activity 从小部件启动一次（第一次）。
这是小部件提供的代码、配置活动和相关的清单条目。如果您需要查看更多代码，请告诉我。
配置活动：
public class SingleNoteConfigure extends ListActivity {
private NotesDbAdapter mDbHelper;
int mAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
public static String ACTION_WIDGET_LIST = "ActionReceiverList";
public static String ACTION_WIDGET_NEW = "ActionReceiverNew";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//set the result to canceled to allow the user
//to change their mind mid widget configure
setResult(RESULT_CANCELED);
Log.d("MYTAG", "in the onCreate of of the widget configure");
//set the layout file for the widget configure
setContentView(R.layout.notes_list_config);
//using the action bar title for user instruction
setTitle("Select note to display on the widget");
// Find the widget id from the intent.
Intent intent = getIntent();
Bundle extras = intent.getExtras();
if (extras != null) {
mAppWidgetId = extras.getInt(
AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
}
Log.d("MYTAG", "in the onCreate");
//stuff to get the database to open
mDbHelper = new NotesDbAdapter(this);
mDbHelper.open();
//call the method that fills the list view
fillData();
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
Cursor note = mDbHelper.fetchNote(id);
startManagingCursor(note);
String title = note.getString(note.getColumnIndexOrThrow(NotesDbAdapter.KEY_TITLE));
String text = note.getString(note.getColumnIndexOrThrow(NotesDbAdapter.KEY_BODY));
RemoteViews views = new RemoteViews(this.getPackageName(), R.layout.singlenote_widget);
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this);
appWidgetManager.updateAppWidget(mAppWidgetId, views);
Log.d("MYTAG", "in the onListItemClick....");
loadData(title, text, id);//here id is the row id of the selection;it is returned by the onListItemSelect
Intent resultValue = new Intent();
resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
setResult(RESULT_OK,resultValue);
finish();
}
void loadData(String title, String text, Long Id) {
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this);
Log.d("MYTAG", "in the load data....");
SingleNote.updateWidget(this, appWidgetManager, mAppWidgetId, title, text);
NotesDbAdapter.updateWidgetId(mAppWidgetId,Id);
}
private void fillData() {
Cursor notesCursor = mDbHelper.fetchAllNotes();
startManagingCursor(notesCursor);
Log.d("MYTAG", "in the fill data of the widget configure");
// Create an array to specify the fields we want to display in the list (TITLE and DATE)
String[] from = new String[]{NotesDbAdapter.KEY_TITLE,NotesDbAdapter.KEY_DATE};
// and an array of the fields we want to bind those fields to (title and date)
int[] to = new int[]{R.id.title,R.id.date};
// Now create a simple cursor adapter and set it to display
SimpleCursorAdapter notes = new SimpleCursorAdapter(this, R.layout.notes_row1, notesCursor, from, to);
setListAdapter(notes);
}
}
小部件提供者：
public class SingleNote extends AppWidgetProvider {
public static String UPDATE_ACTION = "ActionUpdateSinglenoteWidget";
private static NotesDbAdapter mDbHelper;
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];
Log.d("MYTAG", "in the onUpdate");
Intent intent = new Intent(context, Notepadv3.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.singlenote_widget);
views.setOnClickPendingIntent(R.id.single_note_text, pendingIntent);
// Push update for this widget to the home screen
ComponentName thisWidget = new ComponentName(context, SingleNote.class);
AppWidgetManager manager = AppWidgetManager.getInstance(context);
manager.updateAppWidget(thisWidget, views);
}
}
@Override
public void onReceive(Context context, Intent intent) {
try
{
Log.d("MYTAG", "in the onReceive....");
String action = intent.getAction();
Log.d("MYTAG", "in the onReceive....line 2");
Bundle extras = intent.getExtras();
Log.d("MYTAG", "in the onReceive....after bundle");
String title = extras.getString("title");
Log.d("MYTAG", "in the onReceive....after title");
String text = extras.getString("body");
Log.d("MYTAG", "in the onReceive....after text");
Log.d("MYTAG", "@ the point of int");
int id = extras.getInt("widget_id");
Log.d("MYTAG", action+ title + text + id);
if (action != "rakshak" && action.equals(UPDATE_ACTION)) {
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
if (id > 0)
{
updateWidget(context, appWidgetManager, id ,title ,text);
}
else {
return;
}
}
else {
super.onReceive(context, intent);
}
}
catch (Exception e)
{
Log.e("STACKTRACE_TAG", "STACKTRACE");
Log.e("STACKTRACE_TAG", Log.getStackTraceString(e));
}
}
static void updateWidget(Context context, AppWidgetManager appWidgetManager, int appWidgetId, String title, String text){
Log.d("MYTAG", "in the updatewidget method in the siglenote widget....");
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.singlenote_widget);
views.setTextViewText(R.id.single_note_title, title);
views.setTextViewText(R.id.single_note_text, text);
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
来自android清单的东西：
<receiver android:name=".SingleNote"
android:label="Y.A.N (single note widget)"
android:enabled="@bool/is_GB">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
<meta-data android:name="android.appwidget.provider"
android:resource="@xml/singlenote_widget_provider" />
</receiver>
这是我的两个主要问题：
- 如何让活动启动
- 以及如何获取正在录制的小部件的小部件 ID？
感谢您花时间阅读本文以及您可以提供的任何帮助。