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POI got stuck on the onBackPressed() in AsyncTask
 

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  1. POI got stuck on the onBackPressed() in AsyncTask
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    <p>I am start working on the Asynctask Demo. What I want is , "When I press the back button in the android device I want to stop the task which is running in the app "</p> <p>I set up this thing on the onBackPressed() method but after this in the Logcat Task doesn't stop .</p> <p>Where am I make the mistake , help me out of this ?</p> <pre><code>public class Activity1 extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); new CountDownTask().execute(); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } @Override public void onBackPressed() { super.onBackPressed(); new CountDownTask().cancel(true); } private class CountDownTask extends AsyncTask&lt;Void, Integer, Void&gt;{ @Override protected void onPreExecute() { TextView tvCounter = (TextView) findViewById(R.id.tv_counter); tvCounter.setText("START"); } @Override protected Void doInBackground(Void... params) { for(int i=15;i&gt;=0;i--){ try { Thread.sleep(1000); publishProgress(i); Log.e("Aka", String.valueOf(i)); if(isCancelled()){ break; } } catch (InterruptedException e) { } } return null; } @Override protected void onProgressUpdate(Integer... values) { TextView tvCounter = (TextView) findViewById(R.id.tv_counter); tvCounter.setText( Integer.toString(values[0].intValue())); } @Override protected void onPostExecute(Void result) { TextView tvCounter = (TextView) findViewById(R.id.tv_counter); tvCounter.setText("DONE"); } } </code></pre> <p>}</p>
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    1. USAkarsh M
    1. USAkarsh M
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      1. VTUpMod
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      1. VTUpMod
    1. CODemo works fine . there is no error in it ..
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      1. USAkarsh M
    2. COIt's very simple...change the line `new CountDownTask().execute();` in your `onCreate(...)` method to be `cT = new CountDownTask().execute();`. Then remove the line `cT = new CountDownTask();` from your `onBackPressed()` method. It is absolutely as simple as that.
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      1. USSquonk
    3. CO@Squonk : it works great .... thanks for this
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      1. USAkarsh M
 

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