[英]Android testing - Activity is destroyed unexpectedly while an AsyncTask is executing
當我運行應用程序本身時,沒有這種行為AsyncTask
完成執行后,它將返回到我的MainActivity(從AsyncTask
的第一位置開始)。
但是,在我的測試用例中,MainActivity只是突然暫停,停止和銷毀,而AsyncTask
只是在短時間內開始執行。
如何確保活動等待AsyncTask
對其進行回調,就像我的應用程序的實際行為一樣?
02-21 17:23:13.063: W/MainActivity(16685): onCreate
02-21 17:23:13.133: W/MainActivity(16685): refreshRequired
02-21 17:23:13.233: W/MainActivity(16685): user is not regitered
02-21 17:23:13.233: W/MainActivity(16685): onStart
02-21 17:23:13.233: W/MainActivity(16685): onResume
02-21 17:23:16.686: W/MainActivityFunctionalTest(16685): performing the button click action
02-21 17:23:17.227: W/MainActivity(16685): Submit button is clicked
02-21 17:23:17.377: W/Process(16685): doInBackground
02-21 17:23:17.377: W/RegistrationManager(16685): doRegistration
02-21 17:23:17.387: W/RegistrationManager(16685): sendJobRequest
02-21 17:23:17.487: W/RegistrationManager(16685): didOpenedAPDUConnection
02-21 17:23:17.507: W/MainActivity(16685): onPause
02-21 17:23:17.617: W/RegistrationManager(16685): sending HTTP request
02-21 17:23:17.617: W/MessageProcessor(16685): sending a HTTP request
02-21 17:23:17.627: W/HTTPRequest(16685): HTTPRequest.startAsynchronous timeout : 60000
02-21 17:23:17.627: W/HTTPRequest(16685): url is: ...
02-21 17:23:17.848: W/HTTPRequest(16685): HTTPRequest.readResponse RESP BODY = ca000000250104313030350218437573746f6d657220646f6573206e6f74206578697374210900000000
02-21 17:23:17.848: W/MessageProcessor(16685): requestFinished
02-21 17:23:17.858: W/RegistrationManager(16685): didFailedJobRequestWithResponseMsg
02-21 17:23:17.898: W/Process(16685): onPostExecute
02-21 17:38:29.057: W/MainActivity(17483): onStop
02-21 17:38:29.057: W/MainActivity(17483): onDestroy
我的測試課:
public class MainActivityFunctionalTest extends
ActivityInstrumentationTestCase2<MainActivity> {
public void testRegistrationFormIsSubmitted() {
final MainActivity mainActivity = (MainActivity) solo
.getCurrentActivity();
solo.assertCurrentActivity("current activity not main activity",
MainActivity.class);
final View submitBtn = solo.getView(R.id.btn_next);
assertNotNull(submitBtn);
Log.w(TAG, "performing the button click action");
solo.clickOnView(submitBtn);
}
}
主要活動
ImageButton submitBtn = (ImageButton) findViewById(R.id.btn_next);
submitBtn.setImageResource(R.drawable.btn_submit);
// View submitBtn = findViewById(R.id.btn_next);
submitBtn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Log.w(TAG, "Submit button is clicked");
sendActivation(v);
}
});
private void sendActivation(View v) {
process = new Processor(this, this.getApplicationContext());
process.execute();
}
處理器.java
public class Processor extends AsyncTask<Void, String, Void>{
@Override
protected Void doInBackground(Void... arg0)
{
Log.w(TAG, "doInBackground");
mManager.doRegistration();
return null;
}
}
protected Void doInBackground(Void... arg0)
您不應該進行任何UI更改,甚至不顯示Toasts
它引發錯誤。
所以mManager.doRegistration();
如果您執行任何UI更改,都會引發錯誤,
相反,如果有任何UI更改,都可以在protected void onPostExecute()
使用它。
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