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當我收到'通知'GCM消息時，android會自動從標題和正文中創建一條通知，並將其放入通知欄。Android GCM「背景」通知在點擊時不會啓動我的應用程序
當我說「通知」在這裏，我的意思是本文檔中的一個叫通知https://developers.google.com/cloud-messaging/concept-options#notifications_and_data_messages
我遇到的問題是，當我點擊的是，什麼也沒有發生 - 沒有啓動我的活動，或駁回通知。
我試過使用「click_action」選項，並且沒有任何效果。 我已經添加了一個「數據」部分，並沒有任何效果。
當我的應用程序在前臺時，我按預期得到了onMessageReceived，並且我構建的NotificationCompat根據預期重新啓動應用程序。
我錯過了什麼後臺通知來啓動應用程序？
這裏是清單
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="example.package"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="21" />
<!-- [START gcm_permission] -->
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<!-- [END gcm_permission] -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<permission
android:name="example.package.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="example.package.permission.C2D_MESSAGE" />
<application
android:name="example.package.application.appApplication"
android:allowBackup="true"
android:icon="@drawable/app_app_icon"
android:label="@string/app_name"
android:theme="@style/AppTheme"
tools:replace="android:icon, allowBackup"
>
<activity
android:name="example.package.main.activity.MainActivity"
android:label="@string/app_name"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- [START gcm_receiver] -->
<receiver
android:name="com.google.android.gms.gcm.GcmReceiver"
android:exported="true"
android:permission="com.google.android.c2dm.permission.SEND">
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="example.package" />
</intent-filter>
</receiver>
<!-- [END gcm_receiver] -->
<!-- [START gcm_listener] -->
<service
android:name="example.package.service.MyGcmListenerService"
android:exported="false">
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>
<!-- [END gcm_listener] -->
<!-- [START instanceId_listener] -->
<service
android:name="example.package.service.MyInstanceIDListenerService"
android:exported="false">
<intent-filter>
<action android:name="com.google.android.gms.iid.InstanceID" />
</intent-filter>
</service>
<!-- [END instanceId_listener] -->
<service
android:name="example.package.service.RegistrationIntentService"
android:exported="false"></service>
</application>
</manifest>
下面是一個簡單的JSON我送到GCM：
{
"to" : "<snipped>",
"notification" : {
"title" : "<snipped>",
"body" : "<snipped>",
"icon" : "ic_launcher"
},
"data":{"a":"b"},
"content_available": true,
"click_action":"android.intent.action.MAIN"
}
我，當我點擊通知窗口中的項目詳細日誌記錄得到的唯一的事是：
08-30 11:54:35.942 3684-3980/? D/InputReader: Input event(4): value=1 when=7306609326000
08-30 11:54:35.942 3684-3980/? D/InputReader: Input event(4): value=1 when=7306609326000
08-30 11:54:35.942 3684-3980/? I/InputReader: Touch event's action is 0x0 (deviceType=0) [pCnt=1, s=0.323 ] when=7306609326000
08-30 11:54:35.952 3684-3980/? D/InputReader: lastThreadEndTime = 7303509457022, currentThreadStartTime = 7303509466814, diff = 0
08-30 11:54:35.952 3684-3979/? I/InputDispatcher: Delivering touch to (4091): action: 0x0, toolType: 1
08-30 11:54:35.952 4091-4091/? D/ViewRootImpl: ViewPostImeInputStage ACTION_DOWN
08-30 11:54:35.952 3684-4035/? D/lights: button : 1 +
08-30 11:54:35.992 3684-4035/? D/lights: button : 1 -
08-30 11:54:36.112 3684-3980/? D/InputReader: Input event(4): value=0 when=7306778958000
08-30 11:54:36.112 3684-3980/? D/InputReader: Input event(4): value=0 when=7306778958000
08-30 11:54:36.112 3684-3980/? I/InputReader: Touch event's action is 0x1 (deviceType=0) [pCnt=1, s=] when=7306778958000
08-30 11:54:36.112 3684-3979/? I/InputDispatcher: Delivering touch to (4091): action: 0x1, toolType: 1
這是發生在棉花糖和軟糖裝置，雖然我沒有te在兩者之間進行任何事
我知道我可以單獨發送'data'元素，即使在後臺也可以啓動我的服務，但是如果應用程序已被強制停止，那麼它的缺點是無法工作。我真的想弄清楚我需要做些什麼來獲得谷歌在該鏈接上描述的行爲。
這裏是MyGcmListenerService - 當應用程序位於前臺時它確實得到正確調用。
public class MyGcmListenerService extends GcmListenerService {
private static final String TAG = "MyGcmListenerService";
/**
* Called when message is received.
*
* @param from SenderID of the sender.
* @param data Data bundle containing message data as key/value pairs.
* For Set of keys use data.keySet().
*/
// [START receive_message]
@Override
public void onMessageReceived(String from, Bundle data) {
// String message = data.getString("message");
String message = data.getBundle("notification").getString("body");
String customFields = data.getBundle("notification").getString("customFields");
String title = data.getBundle("notification").getString("title");
Log.d("From: " + from);
Log.d("Title: " + title);
Log.d("Message: " + message);
Log.d("CustomFields: " + customFields);
if (from.startsWith("/topics/")) {
// message received from some topic.
} else {
// normal downstream message.
}
// [START_EXCLUDE]
/**
* Production applications would usually process the message here.
* Eg: - Syncing with server.
* - Store message in local database.
* - Update UI.
*/
/**
* In some cases it may be useful to show a notification indicating to the user
* that a message was received.
*/
sendNotification(message);
// [END_EXCLUDE]
}
// [END receive_message]
/**
* Create and show a simple notification containing the received GCM message.
*
* @param message GCM message received.
*/
private void sendNotification(String message) {
Intent intent = new Intent(this, MainActivity.class);
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
/* resumes the current activity - just like pressing link on home page */
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_stat_ic_notification)
.setContentTitle("GCM Message")
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
}
要澄清，我如何得到這個行爲與GCM合作尋找具體爲：
根據https://developers.google.com/cloud-messaging/downstream「當你的應用程序是在後臺，Android的指導信息，併發出通知到系統托盤。用戶點擊通知會默認打開應用啓動器。'
我已經能夠用FCM重新編寫它，但我沒有看到這個問題，但我真的想知道我錯過了什麼。
MyGcmListenerService.java的郵編 – Bhupendra
@Bhupendra我會發布它，但它與googles git頁面上的gcm相同。 在此過程中，當通知欄中的通知由操作系統創建時，它不會以任何方式調用。 –