Is there a way to set android:excludeFromRecents="true" to all activities in application instead of specifying for each activity?
No. You can not use
android:excludeFromRecents="true"in application tag. You have to use this property for each activity seperately. For more go to this link and see different properties only in<activity>tag. https://developer.android.com/guide/topics/manifest/activity-element#exclude