Android学习笔记绘制路径

Path类

android中通过Path类我们可以创建各种各样的绘图路径

路径的体现形式

案例代码

MyView.java

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Path;
import android.view.View;
public class MyView extends View {
    public MyView(Context context) {
        super(context);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);//定义画笔
        Paint paint = new Paint();//设置抗拒齿功能
        paint.setAntiAlias(true);//设置为蓝色
        paint.setColor(0xFF0000FF);//设置为蓝色
        paint.setStyle(Paint.Style.STROKE);//设置填充样式为描边
        Path path = new Path();
        path.addCircle(150,100,50,Path.Direction.CW);
        canvas.drawPath(path,paint);//绘制路径

        //文本路径
        Path path2 = new Path();
        paint.setTextSize(26);
        path2.addCircle(150,300,50,Path.Direction.CW);
        canvas.drawTextOnPath("活着就是受罪",path,
                0,0,paint);
    }
}

预览效果: