doInBackground方法后不执行onPostExecute？

zkw261123 2017-11-08 02:16:12

我的程序执行完doInBackground方法后不执行onPostExecute？这是为什么？？？
代码如下：



public class MyAsyncTask extends AsyncTask<String, Void, ArrayList<String>> {



    private static final String TAG = "MyAsyncTask";



    @Override

    protected ArrayList<String> doInBackground(String... params) {

        ArrayList<String> paramType = new ArrayList<String>();

        ArrayList<String> param = new ArrayList<String>();

        paramType.clear();

        param.clear();

        paramType.add(params[0]);

        param.add(params[1]);

        return WebServiceConnector.executingMethod(WebServiceConnector.METHOD_GETBASICINFOBYSNO, paramType,param);

    }



    @Override

    protected void onPostExecute(ArrayList<String> result) {

        Log.d(TAG,"onPostExecute begin to execute!");

        /*改变主线程UI... ...*/

    }



}

调用时：



new MyAsyncTask().execute(WebServiceConnector.PARAM_TYPE_SNO,"123456");

我发现onPostExecute()一直没有执行，查了查logcat，发现有两个奇怪的异常被捕捉到，但是我看不懂...
以下是logcat：



com.google.android.googlequicksearchbox:search W/ErrorProcessor: onFatalError, processing error from engine(4)

       com.google.android.apps.gsa.shared.speech.b.g: Error reading from input stream

       at com.google.android.apps.gsa.staticplugins.recognizer.j.a.a(SourceFile:28)

       at com.google.android.apps.gsa.staticplugins.recognizer.j.b.run(SourceFile:15)

       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:457)

       at java.util.concurrent.FutureTask.run(FutureTask.java:266)

       at com.google.android.apps.gsa.shared.util.concurrent.a.ax.run(SourceFile:14)

       at com.google.android.apps.gsa.shared.util.concurrent.a.bl.run(SourceFile:4)

       at com.google.android.apps.gsa.shared.util.concurrent.a.bl.run(SourceFile:4)

       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)

       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)

       at java.lang.Thread.run(Thread.java:764)

       at com.google.android.apps.gsa.shared.util.concurrent.a.ai.run(SourceFile:6)

       Caused by: com.google.android.apps.gsa.shared.exception.GsaIOException: Error code: 393238 | Buffer overflow, no available space.

       at com.google.android.apps.gsa.speech.audio.Tee.f(SourceFile:103)

       at com.google.android.apps.gsa.speech.audio.au.read(SourceFile:2)

       at java.io.InputStream.read(InputStream.java:101)

       at com.google.android.apps.gsa.speech.audio.ao.run(SourceFile:18)

       at com.google.android.apps.gsa.speech.audio.an.run(SourceFile:2)

       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:457) 

       at java.util.concurrent.FutureTask.run(FutureTask.java:266) 

       at com.google.android.apps.gsa.shared.util.concurrent.a.ax.run(SourceFile:14) 

       at com.google.android.apps.gsa.shared.util.concurrent.a.bl.run(SourceFile:4) 

       at com.google.android.apps.gsa.shared.util.concurrent.a.bl.run(SourceFile:4) 

       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162) 

       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636) 

       at java.lang.Thread.run(Thread.java:764) 

       at com.google.android.apps.gsa.shared.util.concurrent.a.ai.run(SourceFile:6)



MessageQueue: Handler (android.os.Handler) {753dd07} sending message to a Handler on a dead thread

       java.lang.IllegalStateException: Handler (android.os.Handler) {753dd07} sending message to a Handler on a dead thread

              at android.os.MessageQueue.enqueueMessage(MessageQueue.java:545)

              at android.os.Handler.enqueueMessage(Handler.java:661)

              at android.os.Handler.sendMessageAtTime(Handler.java:630)

              at android.os.Handler.sendMessageDelayed(Handler.java:600)

              at android.os.Handler.post(Handler.java:356)

              at android.os.ResultReceiver$MyResultReceiver.send(ResultReceiver.java:57)

              at com.android.internal.os.IResultReceiver$Stub.onTransact(IResultReceiver.java:58)

              at android.os.Binder.execTransact(Binder.java:674)

AsyncTask部分的代码我是看了书后自己打出来的，发现错误后我和书上比对了一下，也只是没有重写onProgressUpdate()而已。我这个错误书上也没提到，我想来这里问问不执行onPostExecute()该怎么解决？是不是和以上两个异常有关？

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