AndroidRadioButton图片位置与大小实例详解

rgGroup = (RadioGroup) findViewById(R.id.re_group); 
    rbWeiHui = (RadioButton) findViewById(R.id.rb_wei_hui); 
    rbAdd = (RadioButton) findViewById(R.id.rb_add); 
    rbMine = (RadioButton) findViewById(R.id.rb_mine); 
 
    //定义底部标签图片大小 
    Drawable drawableWeiHui = getResources().getDrawable(R.drawable.btn_tab_wei_hui_selector); 
    drawableWeiHui.setBounds(0, 0, 69, 69);//第一0是距左右边距离，第二0是距上下边距离，第三69长度,第四宽度 
    rbWeiHui.setCompoundDrawables(null, drawableWeiHui, null, null);//只放上面 
 
    Drawable drawableAdd = getResources().getDrawable(R.drawable.btn_tab_add_selector); 
    drawableAdd.setBounds(0, 0, 168, 120); 
    rbAdd.setCompoundDrawables(drawableAdd, null, null, null); 
 
    Drawable drawableRight = getResources().getDrawable(R.drawable.btn_tab_mine_selector); 
    drawableRight.setBounds(0, 0, 69, 69); 
    rbMine.setCompoundDrawables(null, drawableRight, null, null); 
 
    //初始化底部标签 
    rgGroup.check(R.id.rb_wei_hui);// 默认勾选首页，初始化时候让首页默认勾选 

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