Android实现自定义的卫星式菜单(弧形菜单)详解

一、前言

Android 实现卫星式菜单也叫弧形菜单，主要要做的工作如下：

1.动画的处理

2.自定义ViewGroup来实现卫星式菜单View

（1）自定义属性

a. 在attrs.xml中定义属性

b. 在布局中使用自定义属性

c. 在自定义View中读取布局文件中的自定义属性

（2）onMeasure 测量 child 即测量主按钮以及菜单项

（3）onLayout 布局 child 即布局主按钮以及菜单项

（4）设置主按钮的选择动画

a.为菜单项menuItem添加平移动画和旋转动画

b.实现菜单项menuItem的点击动画

卫星式菜单效果截图：

二、实现

上面介绍了原理和效果图，下面来看看卫星菜单类的实现：

1.布局文件的实现

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 xmlns:xcskin="http://schemas.android.com/apk/res/com.xc.xcskin"
 android:id="@+id/container"
 android:layout_width="match_parent"
 android:layout_height="match_parent" >

 <com.xc.xcskin.view.XCArcMenuView
  android:id="@+id/arcmenu"
  android:layout_width="150dp"
  android:layout_height="150dp"
  android:layout_alignParentBottom="true"
  android:layout_alignParentLeft="true"
  xcskin:position="left_bottom"
  xcskin:radius="120dp" >

  <RelativeLayout
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:background="@drawable/composer_button" >

   <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    android:src="@drawable/composer_icn_plus" />
  </RelativeLayout>
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_camera"
    android:tag="camera" />
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_music"
    android:tag="music" />
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_place"
    android:tag="place" />
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_sleep"
    android:tag="sleep" />
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_thought"
    android:tag="thought" />
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_with"
    android:tag="with" />
 </com.xc.xcskin.view.XCArcMenuView>

 <com.xc.xcskin.view.XCArcMenuView
  android:id="@+id/arcmenu2"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:layout_alignParentBottom="true"
  android:layout_alignParentRight="true"
  xcskin:position="right_bottom"
  xcskin:radius="150dp" >

  <RelativeLayout
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:background="@drawable/composer_button" >

   <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    android:src="@drawable/composer_icn_plus" />
  </RelativeLayout>
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_camera"
    android:tag="camera" />
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_music"
    android:tag="music" />
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_place"
    android:tag="place" />
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_sleep"
    android:tag="sleep" />
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_thought"
    android:tag="thought" />
  <ImageView
    android:id="@+id/id_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/composer_with"
    android:tag="with" />
 </com.xc.xcskin.view.XCArcMenuView>

</RelativeLayout>

2.卫星菜单类的实现

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 < count; i ++){
   measureChild(getChildAt(i), widthMeasureSpec, heightMeasureSpec);
  }
  super.onMeasure(widthMeasureSpec, heightMeasureSpec);
 }
 @Override
 protected void onLayout(boolean changed, int l, int t, int r, int b) {
  // TODO Auto-generated method stub
  if(changed){
   layoutCButton();
   layoutMenuItems();
  }
 }

 /**
  * 布局主菜单项
  */
 private void layoutCButton() {
  // TODO Auto-generated method stub
  mCButton = getChildAt(0);
  mCButton.setOnClickListener(this);
  int l = 0;
  int t = 0;
  int width = mCButton.getMeasuredWidth();
  int height = mCButton.getMeasuredHeight();
  switch (mPosition) {
   case LEFT_TOP:
    l = 0;
    t = 0;
    break;
   case LEFT_BOTTOM:
    l = 0;
    t = getMeasuredHeight() - height;
    break;
   case RIGHT_TOP:
    l = getMeasuredWidth() - width;
    t = 0;
    break;
   case RIGHT_BOTTOM:
    l = getMeasuredWidth() - width;
    t = getMeasuredHeight() - height;
    break;
   default:
    break;
  }
  mCButton.layout(l, t, l + width, t + height);
 }
 /**
  * 布局菜单项
  */
 private void layoutMenuItems() {
  // TODO Auto-generated method stub
  int count = getChildCount();
  for (int i = 0; i < count - 1; i++) {
   View child = getChildAt(i + 1);
   int l = (int) (mRadius * Math.sin(Math.PI / 2 / (count - 2) * i));
   int t = (int) (mRadius * Math.cos(Math.PI / 2 / (count - 2) * i));
   int width = child.getMeasuredWidth();
   int height = child.getMeasuredHeight();

   // 如果菜单位置在底部 左下，右下
   if (mPosition == Position.LEFT_BOTTOM || mPosition == Position.RIGHT_BOTTOM) {
    t = getMeasuredHeight() - height - t;
   }
   // 右上，右下
   if (mPosition == Position.RIGHT_TOP || mPosition == Position.RIGHT_BOTTOM) {
    l = getMeasuredWidth() - width - l;
   }
   child.layout(l, t, l + width, t + height);
   child.setVisibility(View.GONE);
  }
 }
 @Override
 public void onClick(View v) {
  // TODO Auto-generated method stub
  mCButton = findViewById(R.id.id_button);
  rotateCButton(v,0,360,300);
  toggleMenu(300);
 }
 /**
  * 切换菜单
  */
 public void toggleMenu(int duration) {
  // TODO Auto-generated method stub
  // 为menuItem添加平移动画和旋转动画
  int count = getChildCount();

  for (int i = 0; i < count - 1; i++)
  {
   final View childView = getChildAt(i + 1);
   childView.setVisibility(View.VISIBLE);

   // end 0 , 0
   // start
   int cl = (int) (mRadius * Math.sin(Math.PI / 2 / (count - 2) * i));
   int ct = (int) (mRadius * Math.cos(Math.PI / 2 / (count - 2) * i));

   int xflag = 1;
   int yflag = 1;

   if (mPosition == Position.LEFT_TOP
     || mPosition == Position.LEFT_BOTTOM)
   {
    xflag = -1;
   }

   if (mPosition == Position.LEFT_TOP
     || mPosition == Position.RIGHT_TOP)
   {
    yflag = -1;
   }

   AnimationSet animset = new AnimationSet(true);
   Animation tranAnim = null;

   // to open
   if (mStatus == Status.CLOSE)
   {
    tranAnim = new TranslateAnimation(xflag * cl, 0, yflag * ct, 0);
    childView.setClickable(true);
    childView.setFocusable(true);

   } else
   // to close
   {
    tranAnim = new TranslateAnimation(0, xflag * cl, 0, yflag * ct);
    childView.setClickable(false);
    childView.setFocusable(false);
   }
   tranAnim.setFillAfter(true);
   tranAnim.setDuration(duration);
   tranAnim.setStartOffset((i * 100) / count);

   tranAnim.setAnimationListener(new AnimationListener()
   {

    @Override
    public void onAnimationStart(Animation animation)
    {

    }

    @Override
    public void onAnimationRepeat(Animation animation)
    {

    }

    @Override
    public void onAnimationEnd(Animation animation)
    {
     if (mStatus == Status.CLOSE)
     {
      childView.setVisibility(View.GONE);
     }
    }
   });
   // 旋转动画
   RotateAnimation rotateAnim = new RotateAnimation(0, 720,
     Animation.RELATIVE_TO_SELF, 0.5f,
     Animation.RELATIVE_TO_SELF, 0.5f);
   rotateAnim.setDuration(duration);
   rotateAnim.setFillAfter(true);

   animset.addAnimation(rotateAnim);
   animset.addAnimation(tranAnim);
   childView.startAnimation(animset);

   final int pos = i + 1;
   childView.setOnClickListener(new OnClickListener()
   {
    @Override
    public void onClick(View v)
    {
     if (mOnMenuItemClickListener != null)
      mOnMenuItemClickListener.onClick(childView, pos);

     menuItemAnim(pos - 1);
     changeStatus();

    }
   });
  }
  // 切换菜单状态
  changeStatus();

 }

 /**
  * 选择主菜单按钮
  *
  */
 private void rotateCButton(View v, float start, float end, int duration) {
  // TODO Auto-generated method stub
  RotateAnimation anim = new RotateAnimation(start, end,
    Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
    0.5f);
  anim.setDuration(duration);
  anim.setFillAfter(true);
  v.startAnimation(anim);
 }
 /**
  * 添加menuItem的点击动画
  *
  */
 private void menuItemAnim(int pos)
 {
  for (int i = 0; i < getChildCount() - 1; i++)
  {

   View childView = getChildAt(i + 1);
   if (i == pos)
   {
    childView.startAnimation(scaleBigAnim(300));
   } else
   {

    childView.startAnimation(scaleSmallAnim(300));
   }

   childView.setClickable(false);
   childView.setFocusable(false);

  }

 }

 /**
  * 为当前点击的Item设置变小和透明度增大的动画
  * @param duration
  * @return
  */
 private Animation scaleSmallAnim(int duration)
 {

  AnimationSet animationSet = new AnimationSet(true);

  ScaleAnimation scaleAnim = new ScaleAnimation(1.0f, 0.0f, 1.0f, 0.0f,
    Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
    0.5f);
  AlphaAnimation alphaAnim = new AlphaAnimation(1f, 0.0f);
  animationSet.addAnimation(scaleAnim);
  animationSet.addAnimation(alphaAnim);
  animationSet.setDuration(duration);
  animationSet.setFillAfter(true);
  return animationSet;

 }

 /**
  * 为当前点击的Item设置变大和透明度降低的动画
  */
 private Animation scaleBigAnim(int duration)
 {
  AnimationSet animationSet = new AnimationSet(true);

  ScaleAnimation scaleAnim = new ScaleAnimation(1.0f, 4.0f, 1.0f, 4.0f,
    Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
    0.5f);
  AlphaAnimation alphaAnim = new AlphaAnimation(1f, 0.0f);

  animationSet.addAnimation(scaleAnim);
  animationSet.addAnimation(alphaAnim);

  animationSet.setDuration(duration);
  animationSet.setFillAfter(true);
  return animationSet;

 }

 /**
  * 切换菜单状态
  */
 private void changeStatus()
 {
  mStatus = (mStatus == Status.CLOSE ? Status.OPEN
    : Status.CLOSE);
 }
 /**
  * 是否处于展开状态
  * @return
  */
 public boolean isOpen()
 {
  return mStatus == Status.OPEN;
 }

}

3.使用卫星式菜单类

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();
   }
  });
 }
}

三、总结

Android实现自定义的卫星式菜单(弧形菜单)的内容到这就基本结束了，感兴趣的朋友们可以动手操作起来，只有自己实践了才能更深的理解，希望本文对大家能有所帮助。