Android-单选按钮的值设定

Question

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);

Answer 1

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