小编Ash*_*ing的帖子

我在 setOnCheckedChangeListener 和 OnCheckedChangeListener 下有红线。错误消息告诉我：此行有多个标记 - OnCheckedChangedListener 无法解析为类型 - RadioGroup 类型中的方法 setOnCheckedChangedListener(RadioGroup.OnCheckedChangeListener) 不适用于参数 (new OnCheckedChangeListener(){})

package com.lifematters;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;

public class Test1 extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.test1);

    //define Navigation Image Buttons
    final Button nextBtn = (Button) findViewById(R.id.btnNext);



    RadioGroup radioGroup = (RadioGroup) findViewById(R.id.radioAnswers1);
    radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener()
    {
        public void onCheckedChanged (RadioGroup group, int checkedId){

        final RadioButton radioButton1 = (RadioButton) findViewById(R.id.radioA1);
        final RadioButton …