这个问题几乎与Android - Multiple appWidgets playing different sounds重复，但我的代码无效。我正在使用小部件ID添加一个额外的intent，并使用日志语句来证明它，但每当我点击其中一个小部件时，只有多个实例，我才会获得最后一个appWidgetId。看起来第一个小部件的意图在添加第二个小部件后会发生变化。如果其他帖子中的代码应该有效，那么我必须忽略一些东西，因为我相信我的设置方式几乎相同。
public class PhcaAppWidgetProvider extends AppWidgetProvider {
private static final String ACTION_CLICK = "com.skipmorrow.phca.PhcaAppWidgetProvider.WIDGET_CLICKED";
private final String widgetPageName = "_widget";
private static final String PREFS_NAME = "PHCA";
private static final String PREF_PREFIX_KEY = "prefix_";
private static String MY_DEBUG = "PhcaAppWidget";
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
Log.d(MY_DEBUG, "Provider.onUpdate");
}
@Override
public void onReceive(Context context, Intent intent) {
String intentAction = intent.getAction();
Log.d(MY_DEBUG, "Provider.onReceive(); action = " + intentAction);
Bundle extras = intent.getExtras();
// make a list of all extras, just so I can see what is in there...
if (extras!=null) {
Set<String> ks = extras.keySet();
Iterator<String> iterator = ks.iterator();
while (iterator.hasNext()) {
String s = iterator.next();
Log.d(MY_DEBUG, "Provider.Key found: " + s);
}
}
else {
Log.d(MY_DEBUG, "Provider.extras was null");
}
int[] appWidgetIds1 = intent.getIntArrayExtra("appWidgetIds");
if (extras!=null && extras.containsKey("appWidgetIds")){
// sometimes the intent comes back with an array of appWidgetIds, and sometimes the appWidgetId is stored
// in the one extra "appWidgetId" Clicks never come with the array of appWidgetIds. They always come by
// themselves
Log.d(MY_DEBUG, "Provider.Intent extras does contain a key appWidgetIds");
if (appWidgetIds1!=null) Log.d(MY_DEBUG, "Provider.Intent int array appWidgetIds1 size is " + appWidgetIds1.length);
for (int i = 0; i<appWidgetIds1.length; i++) {
int appWidgetId = appWidgetIds1[i];
Log.d(MY_DEBUG, "Provider.Intent appWidgetIds1[" + i + "] = " + appWidgetId);
if (intentAction.equals("android.appwidget.action.APPWIDGET_UPDATE")) {
Log.d(MY_DEBUG, "Provider.APPWIDGET UPDATE");
updateWidgetState(context, intentAction, appWidgetId);
} else if (intentAction.equals("android.appwidget.action.APPWIDGET_DELETED")) {
// do nothing
}
else {
super.onReceive(context, intent);
}
}
} else {
String intentData = intent.getDataString();
Log.d(MY_DEBUG, "Provider.intent data = " + intentData);
Integer appWidgetId = intent.getIntExtra("appWidgetId", -1);
Log.d(MY_DEBUG, "Provider.appWidgetId = " + appWidgetId);
if (intentAction.equals(ACTION_CLICK)) {
Log.d(MY_DEBUG, "Provider.Clicked");
SharedPreferences myPrefs = context.getSharedPreferences(PREFS_NAME, Context.MODE_WORLD_WRITEABLE);
Integer objNum = myPrefs.getInt(PREF_PREFIX_KEY + appWidgetId, -1);
Log.d(MY_DEBUG, "Provider.ObjNum = " + objNum);
if (objNum > -1) {
Log.d(MY_DEBUG, "Provider.Executing...");
PageAction pa = (PageAction) CommonActivity.GetPageObjectAtIndex(context, widgetPageName, objNum);
pa.ExecuteActionFromWidgetClick(context);
}
}
else {
super.onReceive(context, intent);
}
}
}
public static void updateWidgetState(Context paramContext, String paramString, Integer appWidgetId)
{
Log.d(MY_DEBUG, "Provider.updateWidgetState; appWidgetId = " + appWidgetId + "; paramString = " + paramString);
RemoteViews localRemoteViews = buildUpdate(paramContext, paramString, appWidgetId);
ComponentName localComponentName = new ComponentName(paramContext, PhcaAppWidgetProvider.class);
AppWidgetManager.getInstance(paramContext).updateAppWidget(localComponentName, localRemoteViews);
}
private static RemoteViews buildUpdate(Context ctx, String paramString, Integer appWidgetId)
{
Log.d(MY_DEBUG, "Provider.buildUpdate(); appWidgetId = " + appWidgetId + "; paramString = " + paramString);
RemoteViews views = new RemoteViews(ctx.getPackageName(), R.layout.phca_appwidget);
if (paramString.equals("android.appwidget.action.APPWIDGET_UPDATE")) {
Log.d(MY_DEBUG, "Provider.buildUpdate().. APPWIDGET_UPDATE");
Intent intent = new Intent(ctx, PhcaAppWidgetProvider.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(ACTION_CLICK);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
Uri data = Uri.withAppendedPath(
Uri.parse("ABCD" + "://widget/id/")
,String.valueOf(appWidgetId));
intent.setData(data);
Log.d(MY_DEBUG, "Provider.Added intent extra \"" + AppWidgetManager.EXTRA_APPWIDGET_ID + "\" = " + appWidgetId);
PendingIntent pendingIntent = PendingIntent.getBroadcast(ctx, appWidgetId, intent , PendingIntent.FLAG_UPDATE_CURRENT);
views.setOnClickPendingIntent(R.id.phca_appwidget_layout, pendingIntent);
}
if(paramString.equals(ACTION_CLICK))
{
Log.d(MY_DEBUG, "Provider.buildUpdate().. CLICKED");
Toast.makeText(ctx, "ACTION_CLICK", Toast.LENGTH_LONG).show();
}
return views;
}
}
我有配置活动（ListActivity）这是我的onListItemClick：
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
Toast.makeText(getApplicationContext(), "onListItemClick", Toast.LENGTH_SHORT);
Log.d(MY_DEBUG, "Configurator.onListItemClick");
SharedPreferences.Editor prefs = getSharedPreferences(PREFS_NAME, 0).edit();
prefs.putInt(PREF_PREFIX_KEY + mAppWidgetId, position);
prefs.commit();
Log.d(MY_DEBUG, "Configurator.Prefs.commit()");
// Push widget update to surface with newly set prefix
Log.d(MY_DEBUG, "Configurator.calling updateWidgetState with appWidgetId = " + mAppWidgetId);
PhcaAppWidgetProvider.updateWidgetState(getApplicationContext(), "android.appwidget.action.APPWIDGET_UPDATE", mAppWidgetId);
Log.d(MY_DEBUG, "Configurator.updateWidgetState complete");
Intent resultValue = new Intent();
Uri data = Uri.withAppendedPath(
Uri.parse("ABCD" + "://widget/id/")
,String.valueOf(mAppWidgetId));
resultValue.setData(data);
resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
Log.d(MY_DEBUG, "Configurator.Creating widget with id = " + mAppWidgetId);
setResult(RESULT_OK, resultValue);
finish();
}
我已经在这方面工作了两天，我希望有人可以指出我的方式错误。虚拟电子啤酒等待着能够解决这个问题的人：）
答案 0 :(得分：4)
我试图查看你的代码，但没有找到它为什么它不适合你，除了我在你的代码中发现了一些其他的错误。无论如何，我已经构建了一个可以尝试的快速工作代码。
<强> WidgetProvider.java
package com.example.helloclickablewidget;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.Context;
import android.content.Intent;
import android.widget.RemoteViews;
import android.widget.Toast;
public class WidgetProvider extends AppWidgetProvider {
public static final String WIDGET_CLICKED = "com.example.helloclickablewidget.WIDGET_CLICKED";
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (action != null && action.equals(WIDGET_CLICKED)) {
int widgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
Toast.makeText(context, "Widget clicked. ID: " + widgetId, Toast.LENGTH_LONG).show();
} else {
super.onReceive(context, intent);
}
}
@Override
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, WidgetProvider.class);
intent.setAction(WIDGET_CLICKED);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, appWidgetId, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
// Get the layout for the App Widget and attach an on-click listener
// to the button
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
views.setOnClickPendingIntent(R.id.text, pendingIntent);
// Tell the AppWidgetManager to perform an update on the current app widget
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
}
<强>布局/ widget.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/app_name" >
</TextView>
<强> XML / widget.xml
<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
android:initialLayout="@layout/widget"
android:minHeight="50dp"
android:minWidth="50dp"
android:updatePeriodMillis="86400000" >
</appwidget-provider>
<强>的AndroidManifest.xml
<manifest package="com.example.helloclickablewidget"
android:versionCode="1"
android:versionName="1.0" xmlns:android="http://schemas.android.com/apk/res/android">
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<receiver android:name="WidgetProvider" android:exported="false">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
<action android:name="com.example.helloclickablewidget.WIDGET_CLICKED"/>
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/widget" />
</receiver>
</application>
</manifest>
答案 1 :(得分：1)
尝试替换这些行：
Uri data = Uri.withAppendedPath(
Uri.parse("ABCD" + "://widget/id/")
,String.valueOf(appWidgetId));
intent.setData(data);
使用：
intent.setData(ContentUris.withAppendedId(Uri.EMPTY, appWidgetId));