When android Gallery2 onPause is used, the background page is black and gallery2onpause is displayed.

When android Gallery2 onPause is used, the background page is black and gallery2onpause is displayed.
Modify:
Src/com/android/gallery3d/app/AbstracGalleryActivity. java
The OnResume () function contains about 290 rows.
Remove the line mGLRootView. setVisibility (View. VISIBLE ).
The onPause () function contains approximately 315 rows.
Remove the line mGLRootView. setVisibility (View. GONE ).
Android sleep lock problem. When I hold a sleep lock, I use onPause () to release the lock. However, if an exception occurs in my program, the lock is not called.

It is possible.
You can also release the lock in onDestory.

In Android, the pop-up dialog box will make the current page Activity callback onPause?

No. Check what the dialog box is!