yuan

　

yuan

package cheng.com.bawie.cricle1;

import Android.content.context;

import android.graphics.Canvas;

import android.graphics.color;

import android.graphics.Paint;

import android.graphics.Path;

import android.graphics.Rect;

import android.graphics.RectF;

import android.util.AttributeSet;

import android.util.displayMetrics;

import android.view.View;

import android.view.animation.Animation;

import android.view.animation.LinearInterpolator;

import android.view.animation.RotateAnimation;

public class ChoujiangView extends View implements View.OnClickListener{

private int screenwidth;
private int screenheight;
//获取屏幕宽高信息
private int centerX;
private int centerY;
private int[] colors;
private Paint paint;
private String[] desc = new String[]{"性感", "丰满", "知性", "聪明", "贤惠", "优秀"};
private boolean isRote;

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

public ChoujiangView(Context context,  AttributeSet attrs) {
    this(context, attrs,-1);
}

public ChoujiangView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
  //获取屏幕宽高信息
    DisplayMetrics displayMetrics = context.getresources().getDisplayMetrics();
    screenwidth = displayMetrics.widthPixels;
    screenheight = displayMetrics.heightPixels;
    //获取屏幕中心坐标
    centerX=screenwidth/2;
    centerY=screenheight/2;

    //初始化画笔
    initPaint();

    //色彩
    colors = new int[]{Color.RED, Color.GRAY, Color.YELLOW, Color.BLUE, Color.GREEN, Color.DKGRAY, Color.WHITE};
    
    //初始化旋转动画
    initAnimation();
    //给自己添加点击事件
    this.setOnClickListener(this);

}

//测量大小
@Override
protected void onmeasure(int widthmeasurespec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    setMeasuredDimension(100,100);
}

//绘画
@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    //移动画布的坐标原点
    canvas.translate(centerX,centerY);


    //绘制6个圆弧
    RectF rectF=new RectF(-300,-300,300,300);
    float start=60;
    for (int i = 0; i <6 ; i++) {
        paint.setColor(colors[i]);
        canvas.drawArc(rectF,start*i,60,true,paint);
    }

    //绘制中心的圆
    paint.setColor(Color.RED);
    canvas.drawCircle(0,0,100,paint);

    paint.setColor(Color.WHITE);
    paint.setTextSize(40);

    //获取文字宽度和高度
    Rect rectText = new Rect();
    paint.getTextBounds("start",0,5,rectText);
    int width = rectText.width();
    int height = rectText.height();
    canvas.drawtext("start",-width/2,height/2,paint);


    //绘制描述信息
    RectF rectF1 = new RectF(-200, -200, 200, 200);
    for (int i = 0; i < 6; i++) {
       paint.setColor(Color.WHITE);
       Path path=new Path();
       path.addArc(rectF1,start*i+15,60);
       canvas.drawTextOnPath(desc[i],path,0,0,paint);
    }
}

private void initPaint() {
    paint = new Paint();
    paint.setColor(Color.RED);
    paint.setStrokeWidth(20);
    paint.setStyle(Paint.Style.FILL);
    paint.setAntiAlias(true);

}

private void initAnimation() {
}

private void startAnima() {
    //是否在旋转状态
    isRote = true;
    double random = Math.random();
    RotateAnimation rotateAnimation = new RotateAnimation(0, (float) (720 * random),centerX,centerY);
    rotateAnimation.setDuration(800);
    rotateAnimation.setFillAfter(true);
    //设置重复次数
    rotateAnimation.setInterpolator(new LinearInterpolator());
    //设置重复模式
    rotateAnimation.setRepeatMode(Animation.RESTART);

    //给动画添加监听
    rotateAnimation.setAnimationListener(new Animation.AnimationListener() {
        @Override
        public void onAnimationStart(Animation animation) {

        }

        @Override
        public void onAnimationEnd(Animation animation) {
            isRote=false;
        }

        @Override
        public void onAnimationRepeat(Animation animation) {

        }
    });

    startAnimation(rotateAnimation);

}




@Override
public void onClick(View v) {
   if(!isRote){
       startAnima();
   }
}

//给一个随机的抽奖结果
private void setRoundDom(){
    double random = Math.random();
    RotateAnimation rotateAnimation2=new RotateAnimation(0, (float) (360*random),centerX,centerY);
    rotateAnimation2.setDuration(100);
    rotateAnimation2.setFillAfter(true);
    startAnimation(rotateAnimation2);
}

}

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.Constraintlayout xmlns:android=“http://schemas.android.com/apk/res/android”

xmlns:APP=“http://schemas.android.com/apk/res-auto”

xmlns:tools=“http://schemas.android.com/tools”

android:layout_width=“match_parent”

android:layout_height=“match_parent”

tools:context=".MainActivity">

<cheng.com.bawie.cricle1.ChoujiangView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    />

</android.support.constraint.ConstraintLayout>

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