How to have an activity with single instance in android

Question

I am using this flag in manifest.xml to have only one instance of the activity.

android:launchMode="singleInstance"

But if this activity say A launches a new activity say B and then pressing back button on B not showing activity A. It is showing activity from where we launched A.

Basically i want to create a activity if it is not in stack and if in stack bring on the top. But back button should also work properly.

What flag i should use for this.

Make noHIstory flag in manifest for activities which you dont want to see. — Sharath
– Sharath, Commented Dec 20, 2015 at 7:41

Ankit Aggarwal · Accepted Answer · 2015-12-22 09:47:41Z

1

use android:launchMode="singleTask" instead of android:launchMode="singleInstance"

answered Dec 22, 2015 at 9:47

Ankit Aggarwal

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Prathap Badavath · Accepted Answer · 2015-12-20 07:45:56Z

following code activityA(parent activity),then A launch activity b. Declare these lines in manifest.xml file. When click back button it goes to previous activity(i.e A(parent)).

<activity android:name=".ActivityB" android:label="@string/app_name" android:parentActivityName=".ActivityA" android:windowSoftInputMode="adjustPan" > <meta-data android:name="android.support.PARENT_ACTIVITY" android:value="com.prathap.ActivityA" /> </activity>

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