android开发PathEffect问题处理

zhaorong · 发表于编程和数据库 2017-11-18 11:58:09


	本文主要整理了关于android中PathEffect的问题汇总以及处理方式，以及给大家做了关于PathEffect类的详细解释。我要画出一块由不规则path组成的区域，并且这个path因为视觉效果需要设置圆角，我就通过Paint.setPathEffect(new CornerPathEffect(300)); 给设置了圆角，但是在通过这个path组合成区域的时候因为这个圆角的设置整个区域都有圆角的效果了，这不是我想要的。如图，黑色是我的path，红色是我设置了圆角的由path组成的区域。四个角落都有了圆角的效果，这不是我想要的。而蓝色区域是未设置圆角的，此时path一侧的区域就不符合标准了。以下是我的全部代码 public class PathEffectView extends View { private Path line; private Paint linePaint; private Path range; private Paint rangePaint; private final Paint paint3; public PathEffectView(Context context, @Nullable AttributeSet attrs) { super(context, attrs); linePaint = new Paint(Paint.ANTI_ALIAS_FLAG); linePaint.setStrokeWidth(10); linePaint.setColor(Color.BLACK); linePaint.setStyle(Paint.Style.STROKE); linePaint.setPathEffect(new CornerPathEffect(300)); rangePaint = new Paint(linePaint); rangePaint.setColor(Color.BLUE); rangePaint.setStyle(Paint.Style.FILL); paint3 = new Paint(linePaint); paint3.setColor(Color.RED); } @Override protected void onSizeChanged(int w, int h, int oldw, int oldh) { super.onSizeChanged(w, h, oldw, oldh); line = new Path(); range = new Path(); line.moveTo(0,1000); line.rLineTo(200,-150); line.rLineTo(200,300); line.rLineTo(200,-350); line.rLineTo(200,320); line.rLineTo(200,-370); line.lineTo(w,800); range.addPath(line); range.lineTo(w,h); rangePaint.setPathEffect(null); range.lineTo(0,h); range.close(); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); canvas.save(); canvas.translate(0,-20); canvas.drawPath(line, linePaint); canvas.restore(); canvas.drawPath(range, rangePaint); canvas.drawPath(range,paint3); } } 复制代码

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android开发PathEffect问题处理

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