Introduction - If you have any usage issues, please Google them yourself
4-10 (viewable area) 4-11-1 (Animation animation) 4-11-2-1 (dynamic bitmap) 4-11-2-2 (frame animation) 4-11-2-3 (shear Figure animation) 4-13 (Operation protagonist of the game) 4-14-1 (Rectangle collision) 4-14-2 (round collision) 4-14-4 (more rectangular collision) 4-14-5 (Region collision detection) 4-15-1 (MediaPlayer Music) 4-15-2 (SoundPool sound) 4-16-1 (game kept SharedPreference) 4-16-2 (game kept Stream) 4-3 (View game frame) 4- 4 (SurfaceView game framework) 4-7-1 (Bezier) 4-7-2 (Canvas canvas) 4-8 (Paint Brush) 4-9 (Bitmap bitmap rendering and operation)