Question

我正在实现推送通知，但在调用getToken时收到TIMEOUT异常。

我已为GCM here设置了应用，而SENDER_ID正是所提供的应用。此外，Server API密钥保存在后端部分。

是否有有限数量的getToken请求？在测试推送通知时，我在最初几次尝试时没有遇到任何问题。

new AsyncTask<Void, Void, Void>(){

        @Override
        protected Void doInBackground(Void... params) {
            try {

                InstanceID instance = InstanceID.getInstance(mContext);

                String registrationId = instance.getToken(Constants.GCM_SENDER_ID,
                        GoogleCloudMessaging.INSTANCE_ID_SCOPE, null);

                SharedPreferences sp = mContext.getSharedPreferences(Constants.TOKEN_DATA, Context.MODE_PRIVATE);
                SharedPreferences.Editor editor = sp.edit();
                editor.putString(Constants.REGISTRATION_ID, registrationId);
                editor.commit();

                NotificationsRegister.getInstance(mContext).register(registrationId);
            } catch(IOException e) {
                e.printStackTrace();
            }

            return null;
        }
    }.execute();

Android Manifest：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myexample" >

<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.INTERNET"/>
<permission android:name="com.myexample.permission.C2D_MESSAGE"
    android:protectionLevel="signature" />
<uses-permission android:name="com.myexample.permission.C2D_MESSAGE" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >

    <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="com.myexample" />
        </intent-filter>
    </receiver>
    <service
        android:name=".helper.TutoriaGcmListenerService"
        android:exported="false" >
        <intent-filter>
            <action android:name="com.google.android.c2dm.intent.RECEIVE" />
        </intent-filter>
    </service>
    <service
        android:name=".helper.TutoriaInstanceIDListenerService"
        android:exported="false">
        <intent-filter>
            <action android:name="com.google.android.gms.iid.InstanceID"/>
        </intent-filter>
        </service> 
...

添加到Module的build.gradle中的依赖项：

应用插件：＆＃39; com.google.gms.google-services＆＃39;
compile＆＃39; com.google.android.gms：play-services-gcm：7.5。+＆＃39;

添加到项目的build.gradle中的依赖项：

classpath＆＃39; com.google.gms：google-services：1.3.0-beta1＆＃39;

Answer 1

我今天遇到了这个问题，这就是我要解决的问题。

首先，我在尝试获取令牌时也使用了自己的发件人ID。因此，我尝试使用Google提供的示例getString(R.id.gcm_defaultSenderId)

中的发件人ID

完成此操作后，我开始收到不同的错误消息SERVICE_NOT_AVAILABLE

有几个问题可以解决这个问题，但帮助我的问题是this one。

我关闭了WiFi并在手机上使用了4G连接，它同时使用gcm_defaultSenderId和我自己的发件人ID。

Answer 2

在注册之前，您必须检查google api是否可以使用此代码片段或类似代码：

GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
    int resultCode = apiAvailability.isGooglePlayServicesAvailable(a);
    if (resultCode == ConnectionResult.SUCCESS) { //Do the getTokencall  } else { //check the code }

可能您没有收到SUCCESS resultCode。例如，如果有谷歌api的待定更新。

Answer 3

我遇到了这个问题并在再次尝试后得到修复。

Answer 4

在注册之前播放服务可能无法使用，此课程可能对您有所帮助：

public class PlayServicesValidator {


private static final String TAG = PlayServicesValidator.class.getSimpleName();
private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;


/**
 * Check the device to make sure it has the Google Play Services APK. If
 * it doesn't, display a dialog that allows users to download the APK from
 * the Google Play Store or enable it in the device's system settings.
 */
public static boolean areAvailable(Context context) {
    GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
    int resultCode = apiAvailability.isGooglePlayServicesAvailable(context);
    if (resultCode != ConnectionResult.SUCCESS) {
        return false;
    }
    return true;
}


/**
 * Only call if areAvailable was previously called and returned false
 * @param activity
 * @return
 */
public static boolean areRecoverable(Activity activity) {
    GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
    int resultCode = apiAvailability.isGooglePlayServicesAvailable(activity);
    if (resultCode != ConnectionResult.SUCCESS) {
        if (apiAvailability.isUserResolvableError(resultCode)) {
            return true;
        } else {
            return false;
        }
    }
    return true;
}


/**
 * Shows to the user a dialog to update play services
 * @param activity
 */
public static void recover(Activity activity) {
    GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
    int resultCode = apiAvailability.isGooglePlayServicesAvailable(activity);
    if (resultCode != ConnectionResult.SUCCESS) {
        if (apiAvailability.isUserResolvableError(resultCode)) {
            apiAvailability.getErrorDialog(activity, resultCode, PLAY_SERVICES_RESOLUTION_REQUEST).show();
        }
    }
}
}

GCM getToken（）发送java.io.IOException：TIMEOUT

4 个答案: