Android Shader renderer: Bitmapshader

Shader

Bitmapshader, the Shader family specializes in image rendering.

Construction Method:

Bitmapshader (Bitmap Bitmaptilemode tilextilemode Tiley)

Bitmap: Original

Tiles are literal , tiles. The tilemode here can be seen as a pattern of paving.

Tilex, pattern of tiley:x/y direction paving

public enum Tilemode {     CLAMP   (0),    REPEAT  (1),    MIRROR  (2);    Tilemode (int nativeint) {        this.nativeint = nativeint;    }    final int nativeint;}

CLAMP: If the original bounds (that is, the border of the artwork) is exceeded, the color on the repeating edge

REPEAT: Repeat Bitmap

MIRROR: Repeat bitmap, unlike repeat, it is a mirror repetition, namely: reverse repetition

Cases:

public class Bitmapshaderview extends View {    private bitmapshader mbitmapshader;    Private shapedrawable mshapedrawable;    Public Bitmapshaderview (context context, Bitmap Bitmap) {        super (context);        Mbitmapshader = new Bitmapshader (bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);        mshapedrawable = new Shapedrawable (new OvalShape ());        Mshapedrawable.getpaint (). Setshader (Mbitmapshader);//        mshapedrawable.setbounds (0, 0, bitmap.getwidth (), Bitmap.getheight ()); Original size        mshapedrawable.setbounds (0, 0, bitmap.getwidth () * 2, Bitmap.getheight () * 2);    }    @Override    protected void OnDraw (canvas canvas) {        super.ondraw (canvas);        Canvas.drawcolor (Color.cyan);        Mshapedrawable.draw (canvas);}    }

In the activity, Setcontentview (new Bitmapshaderview (context, bitmap));

Original

X and y edges repeat

Change: Mbitmapshader = new Bitmapshader (bitmap, Shader.TileMode.MIRROR, Shader.TileMode.REPEAT);

Effect

X-direction Mirror Repeat, y-direction repeat

Change: Mbitmapshader = new Bitmapshader (bitmap, Shader.TileMode.REPEAT, Shader.TileMode.MIRROR);
Effect:

Repeat in x direction, mirror repeat in y direction

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Android Shader renderer: Bitmapshader