Android自定义View标识当前选中的控件

   一值有在用网上朋友贴出来的代码,很方便,也能学到很多东西.  这次我也贴点比较简单使用的小东西. 不怎么形容  有图有代码  自己看真想...
 
 主体代码
 
Myview代码 
package com.suncco.taoxie; 
 
import android.content.Context; 
import android.content.res.TypedArray; 
import android.graphics.Canvas; 
import android.graphics.Paint; 
import android.util.AttributeSet; 
import android.util.Log; 
import android.view.View; 
 
public class MyView extends View { 
    private int count; 
    private float space, radii; 
    private int point_normal_color, point_seleted_color; 
 
    // 选中 
    private int selected = 0; 
 
    // background seleted normal 
 
    public MyView(Context context, AttributeSet attrs) { 
        super(context, attrs); 
        TypedArray a = context 
                .obtainStyledAttributes(attrs, R.styleable.MyView); 
 
        count = a.getInteger(R.styleable.MyView_count, 3); 
        space = a.getDimension(R.styleable.MyView_space, 9); 
        radii = a.getDimension(R.styleable.MyView_point_radii, 9); 
 
        point_normal_color = a.getColor(R.styleable.MyView_point_normal_color, 
                0x000000); 
        point_seleted_color = a.getColor( 
                R.styleable.MyView_point_seleted_color, 0xffff07); 
 
        int sum = attrs.getAttributeCount(); 
        a.recycle(); 
    } 
 
    public void setCount(int count) { 
        this.count = count; 
        invalidate(); 
    } 
 
    public void next() { 
        if (selected < count - 1) 
            selected++; 
        else