package com.zhy.ccbCricleMenu;  
  
import android.app.Activity;  
import android.os.Bundle;  
import android.view.View;  
import android.widget.Toast;  
  
import com.zhy.view.CircleMenuLayout;  
import com.zhy.view.CircleMenuLayout.OnMenuItemClickListener;  
  
public class MainActivity extends Activity  
{  
  
    private CircleMenuLayout mCircleMenuLayout;  
  
    private String[] mItemTexts = new String[] { "安全中心 ", "特色服务", "投资理财",  
            "转账汇款", "我的账户", "信用卡" };  
    private int[] mItemImgs = new int[] { R.drawable.home_mbank_1_normal,  
            R.drawable.home_mbank_2_normal, R.drawable.home_mbank_3_normal,  
            R.drawable.home_mbank_4_normal, R.drawable.home_mbank_5_normal,  
            R.drawable.home_mbank_6_normal };  
  
    @Override  
    protected void onCreate(Bundle savedInstanceState)  
    {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_main02);  
  
        mCircleMenuLayout = (CircleMenuLayout) findViewById(R.id.id_menulayout);  
        mCircleMenuLayout.setMenuItemIconsAndTexts(mItemImgs, mItemTexts);  
          
          
  
        mCircleMenuLayout.setOnMenuItemClickListener(new OnMenuItemClickListener()  
        {  
              
            @Override  
            public void itemClick(View view, int pos)  
            {  
                Toast.makeText(MainActivity.this, mItemTexts[pos],  
                        Toast.LENGTH_SHORT).show();  
  
            }  
              
            @Override  
            public void itemCenterClick(View view)  
            {  
                Toast.makeText(MainActivity.this,  
                        "you can do something just like ccb  ",  
                        Toast.LENGTH_SHORT).show();  
                  
            }  
        });  
          
    }  
  
}  

<?xml version="1.0" encoding="utf-8"?>  
<resources>  
  
    <item name="id_circle_menu_item_image" type="id"/>  
    <item name="id_circle_menu_item_text" type="id"/>  
    <item name="id_circle_menu_item_center" type="id"/>  
  
</resources>  

/** 
     * MenuItem的点击事件接口 
     *  
     * @author zhy 
     *  
     */  
    public interface OnMenuItemClickListener  
    {  
        void itemClick(View view, int pos);  
  
        void itemCenterClick(View view);  
    }  
  
    /** 
     * MenuItem的点击事件接口 
     */  
    private OnMenuItemClickListener mOnMenuItemClickListener;  
  
    /** 
     * 设置MenuItem的点击事件接口 
     *  
     * @param mOnMenuItemClickListener 
     */  
    public void setOnMenuItemClickListener(  
            OnMenuItemClickListener mOnMenuItemClickListener)  
    {  
        this.mOnMenuItemClickListener = mOnMenuItemClickListener;  
    }  

public class CircleMenuLayout extends ViewGroup  
{  
    private int mRadius;  
    /** 
     * 该容器内child item的默认尺寸 
     */  
    private static final float RADIO_DEFAULT_CHILD_DIMENSION = 1 / 4f;  
    /** 
     * 菜单的中心child的默认尺寸 
     */  
    private float RADIO_DEFAULT_CENTERITEM_DIMENSION = 1 / 3f;  
    /** 
     * 该容器的内边距,无视padding属性，如需边距请用该变量 
     */  
    private static final float RADIO_PADDING_LAYOUT = 1 / 12f;  
  
    /** 
     * 当每秒移动角度达到该值时，认为是快速移动 
     */  
    private static final int FLINGABLE_VALUE = 300;  
  
    /** 
     * 如果移动角度达到该值，则屏蔽点击 
     */  
    private static final int NOCLICK_VALUE = 3;  
  
    /** 
     * 当每秒移动角度达到该值时，认为是快速移动 
     */  
    private int mFlingableValue = FLINGABLE_VALUE;  
    /** 
     * 该容器的内边距,无视padding属性，如需边距请用该变量 
     */  
    private float mPadding;  
  
    /** 
     * 布局时的开始角度 
     */  
    private double mStartAngle = 0;  
    /** 
     * 菜单项的文本 
     */  
    private String[] mItemTexts;  
    /** 
     * 菜单项的图标 
     */  
    private int[] mItemImgs;  
  
    /** 
     * 菜单的个数 
     */  
    private int mMenuItemCount;  
  
    /** 
     * 检测按下到抬起时旋转的角度 
     */  
    private float mTmpAngle;  
    /** 
     * 检测按下到抬起时使用的时间 
     */  
    private long mDownTime;  
  
    /** 
     * 判断是否正在自动滚动 
     */  
    private boolean isFling;  
  
      
  
    public CircleMenuLayout(Context context, AttributeSet attrs)  
    {  
        super(context, attrs);  
        // 无视padding  
        setPadding(0, 0, 0, 0);  
    }  
  
    /** 
     * 设置布局的宽高，并策略menu item宽高 
     */  
    @Override  
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)  
    {  
        int resWidth = 0;  
        int resHeight = 0;  
  
        /** 
         * 根据传入的参数，分别获取测量模式和测量值 
         */  
        int width = MeasureSpec.getSize(widthMeasureSpec);  
        int widthMode = MeasureSpec.getMode(widthMeasureSpec);  
  
        int height = MeasureSpec.getSize(heightMeasureSpec);  
        int heightMode = MeasureSpec.getMode(heightMeasureSpec);  
  
        /** 
         * 如果宽或者高的测量模式非精确值 
         */  
        if (widthMode != MeasureSpec.EXACTLY  
                || heightMode != MeasureSpec.EXACTLY)  
        {  
            // 主要设置为背景图的高度  
            resWidth = getSuggestedMinimumWidth();  
            // 如果未设置背景图片，则设置为屏幕宽高的默认值  
            resWidth = resWidth == 0 ? getDefaultWidth() : resWidth;  
  
            resHeight = getSuggestedMinimumHeight();  
            // 如果未设置背景图片，则设置为屏幕宽高的默认值  
            resHeight = resHeight == 0 ? getDefaultWidth() : resHeight;  
        } else  
        {  
            // 如果都设置为精确值，则直接取小值；  
            resWidth = resHeight = Math.min(width, height);  
        }  
  
        setMeasuredDimension(resWidth, resHeight);  
  
        // 获得半径  
        mRadius = Math.max(getMeasuredWidth(), getMeasuredHeight());  
  
        // menu item数量  
        final int count = getChildCount();  
        // menu item尺寸  
        int childSize = (int) (mRadius * RADIO_DEFAULT_CHILD_DIMENSION);  
        // menu item测量模式  
        int childMode = MeasureSpec.EXACTLY;  
  
        // 迭代测量  
        for (int i = 0; i < count; i++)  
        {  
            final View child = getChildAt(i);  
  
            if (child.getVisibility() == GONE)  
            {  
                continue;  
            }  
  
            // 计算menu item的尺寸；以及和设置好的模式，去对item进行测量  
            int makeMeasureSpec = -1;  
  
            if (child.getId() == R.id.id_circle_menu_item_center)  
            {  
                makeMeasureSpec = MeasureSpec.makeMeasureSpec(  
                        (int) (mRadius * RADIO_DEFAULT_CENTERITEM_DIMENSION),  
                        childMode);  
            } else  
            {  
                makeMeasureSpec = MeasureSpec.makeMeasureSpec(childSize,  
                        childMode);  
            }  
            child.measure(makeMeasureSpec, makeMeasureSpec);  
        }  
  
        mPadding = RADIO_PADDING_LAYOUT * mRadius;  
  
    }  

/** 
     * 获得默认该layout的尺寸 
     *  
     * @return 
     */  
    private int getDefaultWidth()  
    {  
        WindowManager wm = (WindowManager) getContext().getSystemService(  
                Context.WINDOW_SERVICE);  
        DisplayMetrics outMetrics = new DisplayMetrics();  
        wm.getDefaultDisplay().getMetrics(outMetrics);  
        return Math.min(outMetrics.widthPixels, outMetrics.heightPixels);  
    }  

/** 
 * 设置menu item的位置 
 */  
@Override  
protected void onLayout(boolean changed, int l, int t, int r, int b)  
{  
    int layoutRadius = mRadius;  
  
    // Laying out the child views  
    final int childCount = getChildCount();  
  
    int left, top;  
    // menu item 的尺寸  
    int cWidth = (int) (layoutRadius * RADIO_DEFAULT_CHILD_DIMENSION);  
  
    // 根据menu item的个数，计算角度  
    float angleDelay = 360 / (getChildCount() - 1);  
  
    // 遍历去设置menuitem的位置  
    for (int i = 0; i < childCount; i++)  
    {  
        final View child = getChildAt(i);  
  
        if (child.getId() == R.id.id_circle_menu_item_center)  
            continue;  
  
        if (child.getVisibility() == GONE)  
        {  
            continue;  
        }  
  
        mStartAngle %= 360;  
  
        // 计算，中心点到menu item中心的距离  
        float tmp = layoutRadius / 2f - cWidth / 2 - mPadding;  
  
        // tmp cosa 即menu item中心点的横坐标  
        left = layoutRadius  
                / 2  
                + (int) Math.round(tmp  
                        * Math.cos(Math.toRadians(mStartAngle)) - 1 / 2f  
                        * cWidth);  
        // tmp sina 即menu item的纵坐标  
        top = layoutRadius  
                / 2  
                + (int) Math.round(tmp  
                        * Math.sin(Math.toRadians(mStartAngle)) - 1 / 2f  
                        * cWidth);  
  
        child.layout(left, top, left + cWidth, top + cWidth);  
        // 叠加尺寸  
        mStartAngle += angleDelay;  
    }  
  
    // 找到中心的view，如果存在设置onclick事件  
    View cView = findViewById(R.id.id_circle_menu_item_center);  
    if (cView != null)  
    {  
        cView.setOnClickListener(new OnClickListener()  
        {  
            @Override  
            public void onClick(View v)  
            {  
  
                if (mOnMenuItemClickListener != null)  
                {  
                    mOnMenuItemClickListener.itemCenterClick(v);  
                }  
            }  
        });  
    // 设置center item位置  
    int cl = layoutRadius / 2 - cView.getMeasuredWidth() / 2;  
    int cr = cl + cView.getMeasuredWidth();  
    cView.layout(cl, cl, cr, cr);  
    }  
          
  
}  

/** 
     * 根据触摸的位置，计算角度 
     *  
     * @param xTouch 
     * @param yTouch 
     * @return 
     */  
    private float getAngle(float xTouch, float yTouch)  
    {  
        double x = xTouch - (mRadius / 2d);  
        double y = yTouch - (mRadius / 2d);  
        return (float) (Math.asin(y / Math.hypot(x, y)) * 180 / Math.PI);  
    }  

/** 
     * 自动滚动的任务 
     *  
     * @author zhy 
     *  
     */  
    private class AutoFlingRunnable implements Runnable  
    {  
  
        private float angelPerSecond;  
  
        public AutoFlingRunnable(float velocity)  
        {  
            this.angelPerSecond = velocity;  
        }  
  
        public void run()  
        {  
            // 如果小于20,则停止  
            if ((int) Math.abs(angelPerSecond) < 20)  
            {  
                isFling = false;  
                return;  
            }  
            isFling = true;  
            // 不断改变mStartAngle，让其滚动，/30为了避免滚动太快  
            mStartAngle += (angelPerSecond / 30);  
            // 逐渐减小这个值  
            angelPerSecond /= 1.0666F;  
            postDelayed(this, 30);  
            // 重新布局  
            requestLayout();  
        }  
    }