肯定是我做错了什么，但我是 android studio 的新手，我找不到它。我有一个显示四个 webView 的应用程序，每个都在一个选项卡中，我正在尝试发送推送，json 响应代码没问题，但我在我的 GCM 类中建立了一些断点，看起来它从未被调用过，我的当推送“到达”但不显示任何推送通知时，应用程序崩溃。
json响应码:
{"multicast_id":4710708383941694704,"success":1,"failure":0,"canonical_ids":0,"results":[{"message_id":"0:1431447972667924%e17d0a39f9fd7ecd"}]}{"registration_ids":["XxxxXXx"],"data":{"message":"New content available!"}}
这是我拥有 GCM Intent 服务时的 Activity 主文件:
public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// Explicitly specify that GcmIntentService will handle the intent.
ComponentName comp = new ComponentName(context.getPackageName(),
GcmIntentService.class.getName());
// Start the service, keeping the device awake while it is launching.
startWakefulService(context, (intent.setComponent(comp)));
setResultCode(Activity.RESULT_OK);
}
}
public class GcmIntentService extends IntentService {
public static final int NOTIFICATION_ID = 1;
private NotificationManager mNotificationManager;
NotificationCompat.Builder builder;
public GcmIntentService() {
super("GcmIntentService");
}
@Override
protected void onHandleIntent(Intent intent) {
Bundle extras = intent.getExtras();
GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
// The getMessageType() intent parameter must be the intent you received
// in your BroadcastReceiver.
String messageType = gcm.getMessageType(intent);
if (!extras.isEmpty()) {
if (GoogleCloudMessaging.
MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {
sendNotification("Send error: " + extras.toString());
} else if (GoogleCloudMessaging.
MESSAGE_TYPE_DELETED.equals(messageType)) {
sendNotification("Deleted messages on server: " +
extras.toString());
// If it's a regular GCM message, do some work.
} else if (GoogleCloudMessaging.
MESSAGE_TYPE_MESSAGE.equals(messageType)) {
// This loop represents the service doing some work.
for (int i=0; i<5; i++) {
Log.i(TAG, "Working... " + (i+1)
+ "/5 @ " + SystemClock.elapsedRealtime());
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
}
Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());
// Post notification of received message.
sendNotification("Received: " + extras.toString());
Log.i(TAG, "Received: " + extras.toString());
}
}
// Release the wake lock provided by the WakefulBroadcastReceiver.
GcmBroadcastReceiver.completeWakefulIntent(intent);
}
// Put the message into a notification and post it.
// This is just one simple example of what you might choose to do with
// a GCM message.
private void sendNotification(String msg) {
mNotificationManager = (NotificationManager)
this.getSystemService(Context.NOTIFICATION_SERVICE);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, MainActivity.class), 0);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_logo_guias)
.setContentTitle("GCM Notification")
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(msg))
.setContentText(msg);
mBuilder.setContentIntent(contentIntent);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
}
}
Android list 文件:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.alfredo.guiaswebtabapp" >
<uses-sdk android:minSdkVersion="10" android:targetSdkVersion="22"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<permission android:name="com.example.alfredo.guiaswebtabapp.permission.C2D_MESSAGE"
android:protectionLevel="signature"/>
<uses-permission android:name="com.example.alfredo.guiaswebtabapp.permission.C2D_MESSAGE"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:screenOrientation="portrait"
android:configChanges="keyboardHidden|orientation"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name=".MainActivity$GcmBroadcastReceiver"
android:permission="com.example.alfredo.guiaswebtabapp.permission.C2D_MESSAGE">
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<category android:name="com.example.alfredo.guiaswebtabapp" />
</intent-filter>
</receiver>
<service android:name=".MainActivity$GcmIntentService"
android:enabled="true" />
<activity
android:name=".inicioActivity"
android:label="@string/title_activity_inicio" >
</activity>
<activity
android:name=".ActividadesActivity"
android:label="@string/title_activity_actividades" >
</activity>
</application>
</manifest>
日志:
05-13 10:50:19.329 17900-17900/? E/dalvikvm﹕ Could not find class 'android.app.Notification$Builder', referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zza
05-13 10:50:19.329 17900-17900/? E/dalvikvm﹕ Could not find class 'android.app.AppOpsManager', referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zza
05-13 10:50:31.209 17900-17900/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to instantiate receiver com.example.alfredo.guiaswebtabapp.MainActivity$GcmBroadcastReceiver: java.lang.InstantiationException: com.example.alfredo.guiaswebtabapp.MainActivity$GcmBroadcastReceiver
at android.app.ActivityThread.handleReceiver(ActivityThread.java:1777)
at android.app.ActivityThread.access$2400(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:985)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.InstantiationException: com.example.alfredo.guiaswebtabapp.MainActivity$GcmBroadcastReceiver
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1409)
at android.app.ActivityThread.handleReceiver(ActivityThread.java:1768)
at android.app.ActivityThread.access$2400(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:985)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(Native Method)
05-13 10:50:31.419 185-201/? E/﹕ Dumpstate > /data/log/dumpstate_app_error
05-13 10:50:35.179 274-274/? E/Launcher﹕ setWindowOpaque()
05-13 10:50:35.269 274-274/? E/Launcher﹕ MTP-LAUNCHER: media scanning not yet finished.
05-13 10:50:38.559 274-274/? E/Launcher﹕ setWindowOpaque()
05-13 10:52:38.579 185-215/? E/PowerManagerService﹕ CurLock p:3 mPS:1
最佳答案
您的 GcmBroadcastReceiver 有问题。权限和类别错误。 list 中的接收方条目应如下所示:
<receiver
android:name=".MainActivity$GcmBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND"" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<category android:name="com.example.alfredo.guiaswebtabapp" />
</intent-filter>
</receiver>
同时向接收器添加一个日志以检查它是否被调用。 GCM 消息触发接收方，然后接收方触发服务。
关于java - 收到推送通知和未调用 CGM Intent 服务时应用程序崩溃，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30196963/