Android高手进阶教程(二十六)之---Android超仿Path菜单的功能实现！

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package com.tutor.path; 
 
import androidcontentContext; 
import androidcontentresTypedArray; 
import androidutilAttributeSet; 
import androidviewGravity; 
import androidviewView; 
import androidviewViewGroup; 
import androidviewanimationAnimation; 
import androidviewanimationAnticipateInterpolator; 
import androidviewanimationOvershootInterpolator; 
import androidviewanimationTranslateAnimation; 
import androidwidgetFrameLayout; 
import androidwidgetImageView; 
 
 
/** 
 * @author frankiewei 
 * 超级仿path菜单 
 * position定义菜单的位置，目前支持：左上;右上;右下;左下四个方向。 
 * menuResIds定义出现的菜单的资源ID 
 */ 
public class PathMenuView extends FrameLayout { 
   
  private static final int LEFT_TOP = 0; 
   
  private static final int RIGHT_TOP = 1; 
   
  private static final int RIGHT_BOTTOM = 2; 
   
  private static final int LEFT_BOTTOM = 3; 
   
   
  /** 
   * 默认的位置是在右下角 
   */ 
  private int position = 3; 
   
  /** 
   * 那个圆形菜单 
   */ 
  private ImageView mHome; 
   
  /** 
   * 上下文 
   */ 
  private Context mContext; 
   
   
  /** 
   * 设备的宽度 
   */ 
  private int mWIDTH = 0; 
   
  /** 
   * 设备的高度 
   */ 
  private int mHEIGHT = 0; 
   
  /** 
   * 设备的density 
   */ 
  private float mDensity; 
   
  /** 
   * 菜单是否显示 
   */ 
  private boolean bMenuShow; 
   
  private static int xOffset   = 15; 
  private static int yOffset   = -13; 
   
  /** 
   * 菜单的资源个数 
   */ 
  private int[] menuResIds = {Rdrawablecomposer_camera,Rdrawablecomposer_music, 
      Rdrawablecomposer_sleep,Rdrawablecomposer_music,Rdrawablecomposer_place}; 
   
 
  public PathMenuView(Context context){ 
    super(context); 
    setupViews(); 
  } 
   
  public PathMenuView(Context context, AttributeSet attrs) { 
    super(context, attrs); 
    TypedArray a = contextobtainStyledAttributes(attrs,  
        RstyleablePathMenuView); 
     
    position = agetInt(RstyleablePathMenuView_position,3); 
     
    arecycle(); 
    setupViews(); 
  } 
   
  private void setupViews(){ 
    mCOntext= getContext(); 
 
    mHEIGHT = mContextgetResources()getDisplayMetrics()heightPixels; 
    mWIDTH = mContextgetResources()getDisplayMetrics()widthPixels; 
    mDensity = mContextgetResources()getDisplayMetrics()density; 
     
    xOffset = (int) (667 * mDensity); 
    yOffset = (int) (667 * mDensity); 
     
    mHome = new ImageView(mContext); 
     
    mHomesetImageResource(Rdrawablecomposer_button); 
    mHomesetOnClickListener(listener); 
     
    addView(mHome); 
     
    LayoutParams mHomeparams = (FrameLayoutLayoutParams)mHomegetLayoutParams(); 
    mHomeparamswidth = LayoutParamsWRAP_CONTENT; 
    mHomeparamsheight = LayoutParamsWRAP_CONTENT; 
     
    switch (position) { 
    case LEFT_TOP: 
      mHomeparamsgravity = GravityLEFT | GravityTOP; 
      for (int i = 0; i 

package comtutorpath; 
 
import androidappActivity; 
import androidosBundle; 
 
public class PathTestActivity extends Activity { 
 
  @Override 
  public void onCreate(Bundle savedInstanceState) { 
    superonCreate(savedInstanceState); 
    setContentView(Rlayoutmain);   
  } 
} 

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tutor:position="left_bottom"