So far I'm unable to find a comparable solution in either Java or Android.An intent is an Android element that facilitates navigation from one screen to another. I found out a long time ago when doing Windows development that inserting code to slow down or speed up your program's execution is a major recipe for disaster. I feel my first approach is the proper way to go, but cannot find a suitable solution to the timing issue. This worked, but it still felt wrong given the pausing and polling each fragment was having to do. Once the permission was granted, each fragment would then go about populating its ListView. The call to requestPermission() was still done once in the activity. I could not find the proper way of having one fragment communicate to the other that it has already sought permission and that a second request is not necessary.Īnother thing I tried was to put a call to checkSelfPermission() in each fragment's onActivit圜reated() method to continuously poll the desired permission. The obvious problem is the two request dialogs. I can grant permission to neither, one or the other, or both, and the fragments will respond accordingly. If I put those calls in each fragment, I get two requests asking for permission. I did not like this approach because of the delay, so I kept looking.
This works fine for both a first-time and restarted app. Just to see what would happen, I preceded the message with a 1-second sleep and that gave the fragments enough time to finish their creation. Since permission has now been granted, requestPermissions() does not run, and the message that the activity sends to the fragments gets there before the fragments have been fully created. This works fine, until I restart the app. Once permission is granted, the activity sends both fragments a message indicating they can now populate their ListViews. If I put those calls in the activity, I get one request dialog asking for permission, and because requestPermissions() runs synchronously in a separate thread, the two fragments are allowed to finish their creation in the main thread. As such, I am calling checkSelfPermission() and requestPermissions() as prescribed in the docs.
Because of the new Permissions requirements that came out with Android 6, I need permission from the user at runtime to access that datastore. The content of both tabs will be a ListView filled from the Contacts database. I created a small app based on a "Tabbed Activity." It has two tabs.
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