Ive been trying forever to figure this out, so here is my problem.
I'm trying to modify the The textures (atlas.png) and the sounds of the popular game Flappy Bird but every time i try to install the newly modified apk i get the Application is not installed message and i am trying everything possible i find on this forum but i cant find a solution.
The way i modified to apk:
1. open the apk in 7zip
2. make the new files it Photoshop and audacity (made sure i saved in the right file type)
3. replaced the old files with the new ones
4 saved the apk and tried to install it on my phone (didn't work got the application not installed)
How i got the apk
1. went to android/data/apps/Flappybird.apk
Second way i tryed to install it:
1 copied the new apk to the directory i used above
2 restarted my phone
3. the app got automatically "deleted"
I need help plz