android中shape类的子类

1、北京信息职业技术学院 | 范美英Android中Shape类的子类2Shape的继承关系Android中Shape类的子类| 概况3RectShape（矩形形状）Android中Shape类的子类| 各子类的介绍 /创建该形状的对象 RectShape rectShape = new RectShape(); /使用这种形状构造 ShapeDrawable drawable = new ShapeDrawable(rectShape); drawable.getPaint().setColor(Color.RED); drawable.getPaint().setStyle(Paint.Sty

2、le.FILL); view.setBackgroundDrawable(drawable); 4RoundRectShape（圆角矩形形状）Android中Shape类的子类| 各子类的介绍 float outerRadii = 20, 20, 40, 40, 60, 60, 80, 80;/外矩形 左上、右上、右下、左下 圆角半径 RectF inset = new RectF(100, 100, 200, 200);/内矩形距外矩形，左上角x,y距离， 右下角x,y距离 float innerRadii = 20, 20, 20, 20, 20, 20, 20, 20;/内矩形 圆角半径

3、 /RoundRectShape roundRectShape = new RoundRectShape(outerRadii, inset, innerRadii); RoundRectShape roundRectShape = new RoundRectShape(outerRadii, null, innerRadii); /无内矩形 ShapeDrawable drawable = new ShapeDrawable(roundRectShape); drawable.getPaint().setColor(Color.MAGENTA); drawable.getPaint().se

4、tAntiAlias(true); drawable.getPaint().setStyle(Paint.Style.STROKE);/描边 view.setBackground(drawable); 5OvalShape（椭圆形形状）Android中Shape类的子类| 各子类的介绍 OvalShape ovalShape = new OvalShape(); ShapeDrawable drawable = new ShapeDrawable(ovalShape); drawable.getPaint().setColor(Color.RED); drawable.getPaint().s

5、etStyle(Paint.Style.FILL_AND_STROKE); view.setBackgroundDrawable(drawable); 6ArcShape（扇形形状）Android中Shape类的子类| 各子类的介绍 ArcShape arcShape = new ArcShape(45, 270); /顺时针 开始角度45， 扫描的角度270 扇形 ShapeDrawable drawable = new ShapeDrawable(arcShape); drawable.getPaint().setColor(Color.RED); drawable.getPaint().

6、setStyle(Paint.Style.FILL); view.setBackgroundDrawable(drawable); 7ArcShapeAndroid中Shape类的子类| 各子类的介绍 ArcShape arcShape = new ArcShape(45, 270); /顺时针 开始角度45， 扫描的角度270 扇形 ShapeDrawable drawable = new ShapeDrawable(arcShape); Bitmap bitmap = (BitmapDrawable)getResources().getDrawable(R.drawable.aa).get

7、Bitmap(); BitmapShader bitmapShader = new BitmapShader(bitmap, Shader.TileMode.MIRROR, Shader.TileMode.REPEAT); Matrix matrix = new Matrix(); matrix.preScale(600.00f / bitmap.getWidth(), 600.00f /bitmap.getHeight(); bitmapShader.setLocalMatrix(matrix); drawable.getPaint().setShader(bitmapShader); vi

8、ew.setBackgroundDrawable(drawable); 8PathShape（自定义路径的形状）Android中Shape类的子类| 各子类的介绍 Path path = new Path(); path.moveTo(50, 0); path.lineTo(0, 50); path.lineTo(50, 100); path.lineTo(100, 50); path.lineTo(50, 0); PathShape pathShape = new PathShape(path, 200, 100); ShapeDrawable drawable = new ShapeDrawable(pathShape); drawable.getPaint().setColor(Color.RED); drawable.getPai