Fix issue: can not scrolling when pick image.
Adjust snapshot size.
Adjust the shapshots' quality
Update interface 'onImageChanged' to 'onImageDataChanged'.
Add snapshots to description.
Adjust snapshot size.
Modify image's quality.
Prepare to do refactoring wiht function Item
Do refactoring for support fuction items in grid view.
Fix issue: There no back button when in single picking model.
Fix issue, do not need to show function items in ViewPager.
Fix issue when select image in single models.
Try to do refactoring: Use actionbar to replace the titlebar.
Remove unused import
Change the method to make ViewPager show in FullScreen
Remove useless code.
Support thumbnail.
Update the usage of image loader.
Fix bug: in muli-pick mode, select nothing then click done will select one.
Add failed image when failed or error.