A--C

A--C has asked 2 questions and find answers to 111 problems.

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A--C questions

Why would an xpath position selection expression return multiple nodes?
Android's floating windows coupled with FLAG_SHOW_WHEN_LOCKED fails

A--C answers

Notify Activity of Network Change - Android
getInstalledApplications() with asynctask
Is it possible to callback to multiple listeners?
How do I register in manifest an *inner* MEDIA_BUTTON BroadcastReceiver?
Difference between 'this' , 'activityname.this' and getAplicationContext()
Trying to create an Array of Objects
Where does 'Force Stop` leave an Activity in its life cycle?
How do I set a TextView to a Long Value?
How are notification categories assigned in Android L preview/API 20
Why does Google play hide android.permission.VIBRATE for some apps? [closed]