[android-developers] Getting a delay between starting current activity after returning from startActivityForResult()

Hello guyz,

I am facing problem with starting MainActivity again and perform
remaining tasks, after returning from startActvityForREsult()

My code structrue goes like:

MainActivity{
// this method calls different activities of my application based on
the result of onActivityResult
startCustomActivity() ;
}

//Code goes like :
Class MainActivity extends Activity{

startCustomActivity()
{

if( <Condition1>) {
Intent subIntent = new Intent();

subIntent.setClassName(getApplicationContext(),"com.android.SubActivity");
subIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActvityForResult(subIntent);
startActivityForResult(subIntent,Constant.REQUEST_SUB_SCREEN); //
REQUEST_SUB_SCREEN = 20;
}

else if (<Condition 2>) {
//start activity 2
startActivityForResult(,..,..,);
}

else if (<Condition3>) {
//start activity 3
startActivityForResult(,..,..,);
}

else if (<Condition 4>) {
//start activity 4

}

}

onActivtyResult(,..,..,)
{
if(requestCode == Constant.REQUEST_SUB_SCREEN)
{
if(responseCode == RESULT_OK)
{
startCustomActivity(getIntent().getAction(), getIntent());
}
}
}

AndroidManifest.xml

<activity android:name="com.android.SubActivity"
android:theme="@android:style/
Theme.Translucent.NoTitleBar.Fullscreen"
android:screenOrientation="sensor" android:label="@string/
app_name1"
android:icon="@drawable/qo"
<!-- android:noHistory = true this is not
working as well -->
>

<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category
android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>

SubActivity.java
//Here on GoBack button, I want to send control back to calling
Activity ii.e. MainActivity
/// code starts
GoBackButton.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
setResult(RESULT_OK);
finish(); <---------------- causing
problem
}
});

//code ends

Whats happening is ...

My control is going back to MainActiivty on pressing GOBack button,
but the problem is since I am finishing SubAcitivty in GoBackButton
itself, it takes some time for control to go back to
onActivityResult() and do remaining task and launch another activity
say Activity 2,
as a result of which on pressing GoBack button, for few seconds ,
homeScreen (device homescreen) is dispalyed and then later, my
activity2 gets launched.

I want to remove that delay between GoBack button and launch of
Activity2

I wan to end SubAcitivty as soon as user navigates away from this
activity and send back control to calling activity. I also tried
setting android:noHistory = true instead of calling finish() but
nothing is working.

Please help :(

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