Changwei Yao questions

Changwei Yao answers

• AsyncTask and generics
• Custom View show on center of the screen
• Where to get NavUtil Class?
• BroadcastReceiver with IntentFilter for Intent.ACTION_PACKAGE_REPLACED not working within a service
• listView with progressbar on every item?
• What is the purpose of `convertView` in ListView adapter?
• How to know which specific contact was updated in android?
• View only registering MotionEvent.ACTION_DOWN
• The click-sensitive area does not change after animating and interactive view in android
• Can I use javax.script in Android development and if yes how?