If you long press the Android luncher and then you pressed Wallpapers an app/activity is opened and you could select the wallpaper (it have a gallery view at the bottom). Where I could find the source code for this app/activity in the Android source code (can you point me to the file location or the github url for the app/activity specific path).
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1https://android.googlesource.com/platform/packages/apps/Launcher2/+/master/src/com/android/launcher2/WallpaperChooserDialogFragment.java should be the thing that lets you choose static wallpapers – zapl Nov 27 '12 at 01:28
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Thanks, can you add it as an answer so I could accept it. – Jimmy Nov 28 '12 at 04:49
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The wallpaper chooser for images should be the following part of the launcher
/packages/apps/Launcher2/../WallpaperChooserDialogFragment.java
There are also live wallpaper related packages, for example this could be the chooser for live wallpapers.

zapl
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