2014/10/16 上午 08:11:34

android Programming Glossary: costly

Android - reading device phone number throws NULLPointerException

http://stackoverflow.com/questions/11534534/android-reading-device-phone-number-throws-nullpointerexception

http://stackoverflow.com/questions/14228289/android-device-bluetooth-pairing

OnItemClickListener public void onItemClick AdapterView av View v int arg2 long arg3 Cancel discovery because it's costly and we're about to connect mBtAdapter.cancelDiscovery Get the device MAC address which is the last 17 chars in the View..

Quality problems when resizing an image at runtime

http://stackoverflow.com/questions/4231817/quality-problems-when-resizing-an-image-at-runtime

Also in the first post I linked Romain Guy said Instead of resizing at drawing time which is going to be very costly try to resize in an offscreen bitmap and make sure that Bitmap is 32 bits ARGB888 . However I have no idea how to make sure..

What can be done about the fact that Android automatically deletes corrupt SQLite files?

http://stackoverflow.com/questions/7764943/what-can-be-done-about-the-fact-that-android-automatically-deletes-corrupt-sqlit

we can't afford to take any risk of losing one of those corrupt files. Creating a backup before opening is very time costly and would make the app startup really slow so anything smarter would be greatly appreciated. android sqlite share improve..

Resizing layouts programatically (as animation)

http://stackoverflow.com/questions/8140571/resizing-layouts-programatically-as-animation

android animation share improve this question I wrote a ResizeAnimation for a similar purpose. It's simple but costly. an animation for resizing the view. public class ResizeAnimation extends Animation private View mView private float mToHeight..

Know if a file is a image in Java/Android

http://stackoverflow.com/questions/9244710/know-if-a-file-is-a-image-in-java-android

this. Check out JMimeMagic and JMagick . You can also attempt to read the file using the ImageIO class but that can be costly and is not entirely foolproof. BufferedImage image ImageIO.read new FileInputStream new File ..._ This question has been..