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POAndroid: Restoring the active Activity while resuming the application
 

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  1. POAndroid: Restoring the active Activity while resuming the application
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    <p>I have two activities running: <em>mainActivity</em> and <em>childActivity</em>. Whenever the user clicks in the button in <em>mainActivity</em>, the <em>childActivity</em> is launched. What I want to do is this:</p> <p>When the active activity is the <em>childActivity</em> and the user <strong>clicks the home button then relaunch the application</strong>, I want to see the <em>childActivity</em> <strong>instead of</strong> <em>mainActivity</em> that is launched. </p> <p>I had some suggestions actually work arounds. I tried to manipulate onStart, onRestart, onResume, onStop, onDestroy events. But, they didn't fully solve the problem. There should be a smart way out there. Thank you.</p> <p>Edit: </p> <p>Thank you for the answer, Soonil. The case you said is happening when the activity is called from recent activities window. (the window opened when you long press the home button) However; This is not happening when you open it from home screen. (like opening from start) I don't think my code has a specific problem to generate this error. Because, I created a test project and tried standalone before sending the question and faced the same problem. Anyhow, here is the test code:</p> <pre><code>public class MainActivity extends Activity implements OnClickListener { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); this.setTitle("MainActivity"); ((Button) findViewById(R.id.btnChildActivity)).setOnClickListener(this); } @Override public void onClick(View arg0) { // TODO Auto-generated method stub startActivity(new Intent(this, ChildActivity.class)); } } public class ChildActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main2); this.setTitle("ChildActivity"); } } </code></pre>
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      1. POAndroid: Restoring the active Activity while resuming the application
      1. USSrinivas M.V.
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      1. USVit Khudenko
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    1. COJust ran your example without any problems. The sequence I took: start the app (now on MainActivity screen), press the button (ChildActivity launchs), press the home button (now at the home screen), longpress home and select MainActivity (end up at ChildActivity), press back (end up at MainActivity)
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      1. POAndroid: Restoring the active Activity while resuming the application
      1. USsooniln
    2. COOk. this is what I am expecting too. But, what about running the application from the home screen? (not running from the recent application menu when you long press the home button but from the home screen) I am expecting to see my ChildActivity. However; the MainActivity is launching. Thank you.
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      1. POAndroid: Restoring the active Activity while resuming the application
      1. USÖmer
    3. COSorry, still the same result :( Press app button on home screen (on MainActivity), press button (on ChildActivity), press home (on home screen), press app button on home screen (on ChildActivity), press back (on MainActivity). Do you want your app to -always- start on the ChildActivity screen?
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