I tried a lot and got
adb shell am start -a android.intent.action.MAIN -n com.android.browser/.BrowserActivity
for launching browser so I tried the same with gallery and I'm stuck with this
adb shell am start -a android.intent.action.MAIN -n com.sec.android.gallery3d/.GalleryActivity</b><br/>
I know GalleryActivity is not available but what else can i use?
Note: I am using samsung Galaxy S3 mini so the package name is com.sec.android.gallery3d
We can use monkey to open any app through adb shell,
Try the below command,
$ adb shell monkey -p com.android.gallery3d 1
In my nexus4, Gallery app package name is com.android.gallery3d and we are just passing 1 event via monkey, So that monkey will just open the app and will not do anything further.
Also this approach helps you to open any app just with the package name. Monkey will pick the launcher activity by itself.
Hope it helps.