模拟大转盘自定义View

MainActivity

package com.example.circle_draw_demo03;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.RotateAnimation;

public class MainActivity extends AppCompatActivity {

    private CustomCircleView circleView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        circleView = findViewById(R.id.custom);

        findViewById(R.id.custom1).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                float mFloat = (float) (720+Math.random()*1000);

                RotateAnimation rotateAnimation = new RotateAnimation(0, -mFloat, 240, 240);
                rotateAnimation.setDuration(5000);
                rotateAnimation.setFillAfter(true);
                circleView.startAnimation(rotateAnimation);
            }
        });

    }
}

CustomCircleView外圆

package com.example.circle_draw_demo03;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;

public class CustomCircleView extends View {
    Paint mPaint;
    private RectF rectF;
    private RectF rectF1;
    int mCount = 6;
    float mStart = 0;
    private String[] contents = new String[]{"美 女","女 神","热 舞","丰 满","性 感","知 性"};

    public int[] colors = new int[]{
            Color.parseColor("#FF8247"),
            Color.parseColor("#00EEEE"),
            Color.parseColor("#ABB2FF"),
            Color.parseColor("#FF00FF"),
            Color.parseColor("#FFFF00"),
            Color.parseColor("#00BFFF")};

    public CustomCircleView(Context context) {
        super(context);
        init();
    }

    public CustomCircleView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }
    //初始化画笔
    private void init() {
        mPaint = new Paint();
        mPaint.setColor(Color.BLUE);
        mPaint.setStrokeWidth(10);
        mPaint.setTextSize(20);
        mPaint.setAntiAlias(true);
        mPaint.setStyle(Paint.Style.FILL);

        rectF = new RectF();
        rectF.left = 30;
        rectF.top = 30;
        rectF.bottom = 450;
        rectF.right = 450;

    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        int measuredWidth = getMeasuredWidth();
        rectF1 = new RectF(0, 0, measuredWidth, measuredWidth);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        for (int i = 0; i < mCount; i++){
            mPaint.setColor(colors[i]);
            canvas.drawArc(rectF, mStart, 60, true, mPaint);
            mStart += 60;
        }
        for (int i = 0; i<mCount; i++){
            mPaint.setColor(Color.BLACK);
            mPaint.setTextSize(28);
            Path path = new Path();
            path.addArc(rectF1, (i-1)*60+60, 60);
            canvas.drawTextOnPath(contents[i], path, 100, 50, mPaint);
        }

    }
}

CustomsmailCircleView内圆

package com.example.circle_draw_demo03;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;

public class CustomsmailCircleView extends View {


    private Paint mPaint;
    private RectF mRectF;
    private String witer;

    public CustomsmailCircleView(Context context) {
        super(context);
    }

    public CustomsmailCircleView(Context context, AttributeSet attrs) {
        super(context, attrs);
        TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.CustomCircleView);
        witer = typedArray.getString(R.styleable.CustomCircleView_text);
        init();
    }
    //初始化画笔
    private void init() {
        mPaint = new Paint();
        mPaint.setColor(Color.RED);
        mPaint.setAntiAlias(true);
        mPaint.setStrokeWidth(10);
        mPaint.setTextSize(50);
        mPaint.setStyle(Paint.Style.FILL);

        mRectF = new RectF();
        mRectF.top = 50;
        mRectF.left = 240;
        mRectF.bottom = 300;
        mRectF.right = 240;
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        mPaint.setColor(Color.parseColor("#FFFF00"));
        canvas.drawArc(mRectF, 80, 80, true, mPaint);
        mPaint.setColor(Color.parseColor("#9A32CD"));
        canvas.drawCircle(240, 240, 60, mPaint);
        mPaint.setColor(Color.YELLOW);
        canvas.drawText(witer, 190, 260, mPaint);

    }
}