android开发PathEffect问题处理

2019-10-22 18:22:59

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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。

android,PathEffect,问题

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);  }}

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