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在向 helpshift 发送第一条消息后，我正在关注堆栈。我对android很陌生，不明白如何调试它。此崩溃也发生五分之一，因此我不确定如何重现并修复它。

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java.lang.RuntimeException: An error occured while executing doInBackground()
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at android.os.AsyncTask$3.done(AsyncTask.java:300)
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at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
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at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
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at java.util.concurrent.FutureTask.run(FutureTask.java:242)
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at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
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at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
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at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
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at java.lang.Thread.run(Thread.java:818)
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Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
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at android.os.Handler.<init>(Handler.java:200)
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at android.os.Handler.<init>(Handler.java:114)
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at com.helpshift.HSApiData.updateUAToken(SourceFile:1260)
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at com.helpshift.Helpshift.registerDeviceToken(SourceFile:641)
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at notifications.GCMRegisterCheck$RegisteringHelpShiftWithToken.doInBackground(SourceFile:337)
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at notifications.GCMRegisterCheck$RegisteringHelpShiftWithToken.doInBackground(SourceFile:331)
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at android.os.AsyncTask$2.call(AsyncTask.java:288)
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at java.util.concurrent.FutureTask.run(FutureTask.java:237)
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... 4 more
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java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
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at android.os.Handler.<init>(Handler.java:200)
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at android.os.Handler.<init>(Handler.java:114)
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at com.helpshift.HSApiData.updateUAToken(SourceFile:1260)
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at com.helpshift.Helpshift.registerDeviceToken(SourceFile:641)
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at notifications.GCMRegisterCheck$RegisteringHelpShiftWithToken.doInBackground(SourceFile:337)
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at notifications.GCMRegisterCheck$RegisteringHelpShiftWithToken.doInBackground(SourceFile:331)
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at android.os.AsyncTask$2.call(AsyncTask.java:288)
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at java.util.concurrent.FutureTask.run(FutureTask.java:237)
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at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
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at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
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at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
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at java.lang.Thread.run(Thread.java:818)
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1 回答 1

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发生此崩溃是因为调用是从不包含关联的 looper 的线程发生的。要停止此崩溃：

  1. 创建处理程序线程。
  2. 使用上述处理程序线程的循环器并创建一个注册处理程序。
  3. 在注册处理程序中进行 API 调用。

在您的异步任务中 -

@Override
protected Void doInBackground(Void... voids) {
   HandlerThread handlerThread = new HandlerThread("register-device-token");
   handlerThread.start();
   new RegisterDeviceTokenHandler(handlerThread.getLooper(), context).post(null);
   return null;
}

您的注册设备令牌处理程序 -

private static class RegisterDeviceTokenHandler extends Handler {

    private final Context context;

    public RegisterDeviceTokenHandler(Looper looper, Context context) {
        super(looper);
        this.context = context;
    }

    @Override
    public void handleMessage(Message msg) {
        Helpshift.registerDeviceToken(context, "hello");
    }
}

如有任何其他疑问，请随时通过 support@helpshift.com 与我们联系

于 2015-12-04T11:02:16.640 回答