Actually,
to me it sounds it's behaving correctly...
If Activity B is standard then it might be re-used, so it's not
obliged to create a new Instance...
Thats what happens in ur case, first time it get's created, then you
go to activity A, then when you ask for Activity B the "old" activity
B is returned...
If you don't want that as a behaviour you might declare B as
singleInstance or even better singleTask...
On 21 jun, 13:30, Vibhor Mahajan <mahajan.vib...@gmail.com> wrote:
> Hello,
>
> What is launch mode of an activity, which is launched from an activity
> with launch mode as "singleinstance". I tried the following code.
>
> My application has two activities i.e. A & B. Activity A has
> "singleinstance" launchmode set and activity B has "standard" launch
> mode set. Android manifest file is as follows:
>
> <application android:icon="@drawable/icon" android:label="@string/
> app_name" >
> <activity android:name=".activity_lifecycle"
> android:label="@string/app_name"
> android:launchMode="singleInstance">
> <intent-filter> <action
> android:name="android.intent.action.MAIN" />
> <category
> android:name="android.intent.category.LAUNCHER" />
> </intent-filter>
> </activity>
> <activity android:name=".another"
> android:launchMode="standard" ></activity>
> </application>
>
> Activity A has a button, clicking button starts Activity B using below
> code:
> public void onClick(View v) {
> // TODO Auto-generated method stub
> Intent intent = new
> Intent(activity_lifecycle.this,another.class);
> startActivityForResult(intent, 0);
>
> }
>
> Activity B has a button, clicking button starts Activity A using below
> code:
> public void onClick(View v) {
> // TODO Auto-generated method stub
> Intent intent = new
> Intent(another.this,activity_lifecycle.class);
> startActivityForResult(intent, 0);
>
> }
>
> Click button in Activity A starts B. (oncreate of B is called)
> Click button in Activity B re-starts A. (because A has SINGLEINSTANCE
> launchmode)
> Click button in Activity A re-starts B. (oncreate of B is NOT CALLED)
>
> After 3rd step, since activity B is standard, a new instance should be
> created and not previous instance to be used.
>
> Kindly suggest why when second time activity B is started, a new
> instance of activity B is not created, when it is declared with
> launchmode "standard".
>
> Regards,
> Vibhor
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