Android-单选按钮的值设定

求助，应用不管选中哪个按钮，价格总是525.00。不知道怎么搞的。

        //Get and set package selected.
        radioPackageGroup = (RadioGroup)   findViewById(R.id.radTadPackage);
        int selectedId = radioPackageGroup.getCheckedRadioButtonId();
        btnPackage = (RadioButton) findViewById(selectedId);
        String display_package_selected = btnPackage.getText().toString(); 
        TadGlobals.getTadPackageInstance().setTadPackage(display_package_selected);     

        //Set package price.
        double package_price = 0.00;
        if(display_package_selected == "Bronze"){
            package_price = 150.00;
        }else if(display_package_selected == "Silver"){
            package_price = 225.00;
        }else if(display_package_selected == "Gold"){
            package_price = 375.00;
        }else{
            package_price = 525.00;
        }
        TadGlobals.getPackagePriceInstance().setPackagePrice(package_price);

很显然，你这个是在初始化做的，获取btn的按钮的值
而你并没有写选中的监听事件

    a.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup radioGroup, int i) {
            //To change body of implemented methods use File | Settings | File Templates.
        }
    });

然后按照楼下的代码区设置

swith（selectedId ） ｛
case R.id.childRadioButton1:
package_price = 150.00;
break;
...依次类推
｝

使用string.equals()方法进行比较：

if(display_package_selected.equals("Bronze")) 
{
                package_price = 150.00;
}
else if(display_package_selected.equals("Silver"))
{
                package_price = 225.00;
}
else if(display_package_selected.equals("Gold"))
{
                package_price = 375.00;
}
else
{
                package_price = 525.00;
}

这个display_package_selected == "Bronze"不对，String不能这样比较，改为display_package_selected.equals("Bronze")，其它几个类似

给你的radiogroup设置监听事件，然后采用switch形式，把radiobutton的ID传进去，在相应的case ID中设置你的业务逻辑操作即可

监听事件，要有回调响应。回调函数什么时候执行你的代码，要清楚，另外，建议楼主学会自己打log。