Android自定义Seekbar滑动条Pop提示跟随滑动按钮滑动

<&＃63;xml version="1.0" encoding="utf-8"&＃63;>

 
 
 
  
   
   
  
 
 
 

/**
  * 文本的颜色
  */
 private int mTitleTextColor;
 /**
  * 文本的大小
  */
 private float mTitleTextSize;
 private String mTitleText;//文字的内容
 
 /**
  * 背景图片
  */
 private int img;
 private Bitmap map;
 //bitmap对应的宽高
 private float img_width, img_height;
 Paint paint;
 
 private float numTextWidth;
 //测量seekbar的规格
 private Rect rect_seek;
 private Paint.FontMetrics fm;
 
 public static final int TEXT_ALIGN_LEFT = 0x00000001;
 public static final int TEXT_ALIGN_RIGHT = 0x00000010;
 public static final int TEXT_ALIGN_CENTER_VERTICAL = 0x00000100;
 public static final int TEXT_ALIGN_CENTER_HORIZOnTAL= 0x00001000;
 public static final int TEXT_ALIGN_TOP = 0x00010000;
 public static final int TEXT_ALIGN_BOTTOM = 0x00100000;
 /**
  * 文本中轴线X坐标
  */
 private float textCenterX;
 /**
  * 文本baseline线Y坐标
  */
 private float textBaselineY;
 /**
  * 文字的方位
  */
 private int textAlign;
 
 public MySeekBar(Context context) {
  this(context, null);
 }
 
 public MySeekBar(Context context, AttributeSet attrs) {
  this(context, attrs, 0);
 }
 
 public MySeekBar(Context context, AttributeSet attrs, int defStyleAttr) {
  super(context, attrs, defStyleAttr);
  TypedArray array = context.getTheme().obtainStyledAttributes(attrs, R.styleable.MySeekBar, defStyleAttr, 0);
  int n = array.getIndexCount();
  for (int i = 0; i