在我的安卓apk中，ANSYNC TASK方法不起作用

Question

在我的安卓apk中，我正在使用异步任务方法。 它从过去很多年工作正常，但现在它正在制造问题。

doinbackground(( 和postExecute(( 方法不起作用(它们没有被调用( ，只有 preExecute(( 方法有效。doinbackground(( 和postExecute(( 方法不起作用(它们没有被调用( ，只有 preExecute(( 方法有效。

class MyAsyncTask extends AsyncTask<Void, ConversationModel, Void> {
@Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
heading.setText("myheading");
}
});

try {
Thread.sleep(2000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
for (ConversationModel model : dataList) {
if (flagStop)
break;
publishProgress(model);
long_time = Long.parseLong(model.sound_time) * 1000 + 500;
try {
Thread.sleep(long_time);
Thread.sleep(long_extraTime);
long_extraTime = 0;
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
i++;
Log.d("i", i + " -----------------");
}
return null;
}
protected void onProgressUpdate(ConversationModel... model) {
if (i % 2 == 0) {
View v = View.inflate(Conversation1.this, arrInt_resource[0], null);
v.setAnimation(null);
TextView txtV_spn = (TextView) v.findViewById(R.id.textView_spn);
TextView txtV_eng = (TextView) v.findViewById(R.id.textView_eng);
ImageView img_sound = (ImageView) v.findViewById(R.id.imgsound_conv_spn2eng);
RelativeLayout speak_layout = (RelativeLayout) v.findViewById(R.id.speaking_layout);
heading.setText(dataList.get(0).heading);
if (flag != 1) {
txtV_spn.setText(model[0].eng_txt);
txtV_eng.setText(model[0].spn_txt);

}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
if (i >= dataList.size()) {
Log.d("i", i + " ------------------");
makingcontinueImageView();
}
}
}

Answer 1

用这个更改 asynctask 的 .execute(( 方法

asynctask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);