从多个RadioGroup获取值

Question

我正在创建一个活动，其中包含 7个RadioGroups ，每个活动 5个RadioButtons 。我的问题是我只选择了一个RadioGroup（lvl_mon）的索引而另外6个返回-1但是它们被选中了。我的代码是：

lvl_mon = (RadioGroup)findViewById(R.id.lvl_monday);
lvl_tue = (RadioGroup)findViewById(R.id.lvl_tuesday);
lvl_wed = (RadioGroup)findViewById(R.id.lvl_wednesday);
lvl_thu = (RadioGroup)findViewById(R.id.lvl_thursday);
lvl_fri = (RadioGroup)findViewById(R.id.lvl_friday);
lvl_sat = (RadioGroup)findViewById(R.id.lvl_saturday);
lvl_sun = (RadioGroup)findViewById(R.id.lvl_sunday);

int index_mon = lvl_mon.indexOfChild(findViewById(lvl_mon.getCheckedRadioButtonId()));
int index_tue = lvl_tue.indexOfChild(findViewById(lvl_tue.getCheckedRadioButtonId()));
int index_wed = lvl_wed.indexOfChild(findViewById(lvl_wed.getCheckedRadioButtonId()));
int index_thu = lvl_thu.indexOfChild(findViewById(lvl_thu.getCheckedRadioButtonId()));
int index_fri = lvl_fri.indexOfChild(findViewById(lvl_fri.getCheckedRadioButtonId()));
int index_sat = lvl_sat.indexOfChild(findViewById(lvl_sat.getCheckedRadioButtonId()));
int index_sun = lvl_sun.indexOfChild(findViewById(lvl_sun.getCheckedRadioButtonId()));

Answer 1

如果您的电台组内有按钮，则可以执行以下操作：

RadioGroup lvl_mon = (RadioGroup) findViewById(R.id.lvl_monday);
String selected_mon = ((RadioButton) findViewById(lvl_mon .getCheckedRadioButtonId())).getText().toString();

Answer 2

我想出了问题，我在每个RadioGroup中都有相同的Radio按钮ID，所以我更改了ID并清理了项目。这解决了问题

Answer 3

你有没有试过这个

lvl_mon = (RadioGroup)findViewById(R.id.lvl_monday);
RadioButton lvl_mon1;

     lvl_mon.setOnCheckedChangeListener(new OnCheckedChangeListener() {

        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {
            // TODO Auto-generated method stub

           lvl_mon1= (RadioButton)findViewById(checkedId);

           switch(checkedId){
           case R.id.radio0:
              // do somthings
           break;

           case R.id.radio1:
           .......

          }
        }
    });

Answer 4

int radioButtonID = radioButtonGroup.getCheckedRadioButtonId();
View radioButton = radioButtonGroup.findViewById(radioButtonID);
int idx = radioButtonGroup.indexOfChild(radioButton);

这可能会有所帮助!!