android_xianglian/app/src/main/java/com/quansu/heifengwuliu/view/CircleTextView.java

package com.quansu.heifengwuliu.view;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Path;
import android.util.AttributeSet;



/**
 * Created by zhulei on 15/12/10.
 */
public class CircleTextView extends BaseTextView {
    public CircleTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    public CircleTextView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public CircleTextView(Context context) {
        this(context, null);
    }


    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        int measuredWith = getMeasuredWidth();
        int measuredHeight = getMeasuredHeight();
        int max = Math.max(measuredHeight, measuredWith);
        setMeasuredDimension(max, max);
    }

    @Override
    public void draw(Canvas canvas) {
        Path clipPath = new Path();
        clipPath.addCircle(getWidth() / 2, getHeight() / 2, Math.max(getWidth(), getHeight()) / 2, Path.Direction.CW);
        canvas.clipPath(clipPath);
        super.draw(canvas);
    }
}