我收到此错误:无效的类型无效,此变量
void is an invalid type for the variable onRadioButtonClicked
但开发者网站说,虚空是必须的!那么问题在哪里?该XML的的编码是correc ..这个问题必须位于这里的某个地方:
package com.example.kernel.version;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.RadioButton;
public class MainPage extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent=getIntent();
setContentView(R.layout.activity_main_page);
public void onRadioButtonClicked(View view) {
// Is the button now checked?
boolean checked = ((RadioButton) view).isChecked();
// Check which radio button was clicked
switch(view.getId()) {
case R.id.radio_pirates:
if (checked)
// Pirates are the best
break;
case R.id.radio_ninjas:
if (checked)
// Ninjas rule
break;
}
}
谢谢!它解决了问题! –
不客气,不要忘记[接受这个答案](http://meta.stackexchange.com/a/65088/155831),如果你发现它很有用:) – Reimeus