自定义画圆+文字

来源：互联网发布：南大网络教学平台编辑：程序博客网时间：2024/04/30 06:29

import android.content.Context;

import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.View;

public class DrawView extends View {
private int mCircleXY;
private float mRadius;

public DrawView(Context context, AttributeSet attrs, int defStyle) {    super(context, attrs, defStyle);    // TODO Auto-generated constructor stub}public DrawView(Context context) {    super(context);    // TODO Auto-generated constructor stub}@Overrideprotected void onSizeChanged(int w, int h, int oldw, int oldh) {    // TODO Auto-generated method stub    super.onSizeChanged(w, h, oldw, oldh);    init(w,h);}private void init(int w, int h) {    // TODO Auto-generated method stub     int length = Math.min(w, h);     mCircleXY = length / 2;     mRadius = length * 0.5f / 2;}@Overrideprotected void onDraw(Canvas canvas) {    // TODO Auto-generated method stub    super.onDraw(canvas);    //创建画笔    Paint p=new Paint(Paint.ANTI_ALIAS_FLAG);    p.setColor(Color.WHITE);    Paint paint=new Paint(Paint.ANTI_ALIAS_FLAG);    paint.setTextSize(20);    //颜色    paint.setColor(Color.BLACK);    //排列方式    paint.setTextAlign(Paint.Align.CENTER);

// canvas.drawCircle(60, 20, 10, p);
p.setAntiAlias(true);
paint.setAntiAlias(true);
canvas.drawCircle(mCircleXY,mCircleXY,mRadius, p);
canvas.drawText(“我有个盆,我有个苹果,昂,苹果盆”, mCircleXY,mCircleXY, paint);
}

}

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