For the More Curious: Concurrent Documents
If you are running your apps on a Lollipop device, you may have noticed some interesting behavior with respect to CriminalIntent and the overview screen. When you opt to send a crime report from CriminalIntent, the activity for the app you select from the chooser is added to its own separate task rather than to CriminalIntent’s task (Figure 22.15).
Figure 22.15 Gmail launched into separate task
On Lollipop, the implicit intent chooser creates a new, separate task for activities launched with the android.intent.action.SEND
or action.intent.action.SEND_MULTIPLE
actions. (On older ...
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