Android实现自定义的卫星式菜单(弧形菜单)详解

package com.xc.xcskin.view;

import com.xc.xcskin.R;

import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.util.Log;
import android.util.TypedValue;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.AnimationSet;
import android.view.animation.RotateAnimation;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;
/**
 * 卫星式菜单View
 * @author caizhiming
 *
 */
public class XCArcMenuView extends ViewGroup implements OnClickListener{

 private static final int POS_LEFT_TOP = 0;
 private static final int POS_LEFT_BOTTOM = 1;
 private static final int POS_RIGHT_TOP = 2;
 private static final int POS_RIGHT_BOTTOM = 3;
 
 private Position mPosition = Position.RIGHT_BOTTOM;
 private int mRadius;
 private Status mStatus = Status.CLOSE;
 //主菜的单按钮
 private View mCButton;
 private OnMenuItemClickListener mOnMenuItemClickListener;
 /**
  * 菜单的状态枚举类
  * @author caizhiming
  *
  */
 public enum Status{
  OPEN,CLOSE
 }
 /**
  * 菜单的位置枚举类
  * @author caizhiming
  *
  */
 public enum Position{
  LEFT_TOP,LEFT_BOTTOM,
  RIGHT_TOP,RIGHT_BOTTOM
 }
 /**
  * 点击子菜单项的回调接口
  * @author caizhiming
  *
  */
 public interface OnMenuItemClickListener {
  void onClick(View view, int pos);
 }

 public void setOnMenuItemClickListener(
   OnMenuItemClickListener onMenuItemClickListener) {
  this.mOnMenuItemClickListener= onMenuItemClickListener;
 }
 
 public XCArcMenuView(Context context) {
  this(context, null);
  // TODO Auto-generated constructor stub
 }
 public XCArcMenuView(Context context, AttributeSet attrs) {
  this(context, attrs, 0);
  // TODO Auto-generated constructor stub
 }
 public XCArcMenuView(Context context, AttributeSet attrs, int defStyle) {
  super(context, attrs, defStyle);
  // TODO Auto-generated constructor stub
  //获取自定义属性
  TypedArray a = context.getTheme().obtainStyledAttributes(attrs,
    R.styleable.XCArcMenuView,defStyle,0);
  int pos = a.getInt(R.styleable.XCArcMenuView_position , POS_RIGHT_BOTTOM);
  switch (pos) {
   case POS_LEFT_TOP:
    mPosition = Position.LEFT_TOP;
    break;
   case POS_LEFT_BOTTOM:
    mPosition = Position.LEFT_BOTTOM;
    break;
   case POS_RIGHT_TOP:
    mPosition = Position.RIGHT_TOP;
    break;
   case POS_RIGHT_BOTTOM:
    mPosition = Position.RIGHT_BOTTOM;
    break;
  }
  mRadius = (int) a.getDimension(R.styleable.XCArcMenuView_radius, 
    (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 150, 
    getResources().getDisplayMetrics()));
  Log.v("czm", "mPosition = " + mPosition + ",mRadius = "+mRadius);
  a.recycle();
 }

 @Override
 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
  // TODO Auto-generated method stub
  int count = getChildCount();
  for(int i = 0; i 

package com.xc.xcskin;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

import com.xc.xcskin.view.XCArcMenuView;
import com.xc.xcskin.view.XCArcMenuView.OnMenuItemClickListener;
import com.xc.xcskin.view.XCGuaguakaView;
import com.xc.xcskin.view.XCGuaguakaView.OnCompleteListener;

/**
 * 使用并测试自定义卫星式菜单View
 * @author caizhiming
 *
 */
public class XCArcMenuViewDemo extends Activity{

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.xc_arcmenu_view_demo);
  XCArcMenuView view = (XCArcMenuView) findViewById(R.id.arcmenu);
  view.setOnMenuItemClickListener(new OnMenuItemClickListener() {
   
   @Override
   public void onClick(View view, int pos) {
    // TODO Auto-generated method stub
    String tag = (String) view.getTag();
    Toast.makeText(XCArcMenuViewDemo.this, tag, Toast.LENGTH_SHORT).show();
   }
  });
 }
}