Android Drawing Examples

eclipse/ has the eclipse projects, no longer updated. Everything else is in andriod studio

DrawDemo1 uses a canvas from a imageview to draw on. There are 4 fragments. main draws different types of objects, based on a spinner and some need two taps to be drawn like a line. there is a animated fragments to clear an uses a thread, asyc uses a aysctask. draw1 only draws one object on the screen.

drawDemo2 uses a customview to draw on a canvas. There is also a touch listener, to draw blocks.

AlienInvaders is a very simple space invaders like game using a surfaceview.

GraphicOverlayDemo is an example of how to create a customview to draw on other views.

SurfaceViewDemo uses a surfaceview. Since a surface is for "animated" drawing, an alien moves accross the screen. The user touches it and it moves to a new location. It shows to use an extended surfaceview or all it in the activity.

TextureViewDemo is an example of how to draw on a surface (via a canvas) of a TextureView. It uses a thread to update the moving block. It shows to use an extended textureView and how use all the code in the main. (same example as the surfaceViewDemo)

FlappyAlien is a simple FlappyBird clone, to show how a game work work on a TextureView.

AnimatedGifDemo shows how to use the animated Drawable class to have animated gifs. NOTE: api 28+

AnimatedVectorDrawableDemo show how to use Vector graphics animate them. uses the androidx.vectordrawable

legacy no longer updated code.
DrawDemo uses a canvas to draw on, then display via an imageview and is no longer updated
svtest is a very simple SurfaceView to draw and "animate" a moving box and is no longer updated.
gameAnd is a simple game and with broken surfaceView demo code.

These are example code for University of Wyoming, Cosc 4730 Mobile Programming course. All examples are for Android.