Activity:
package com.example.relativelayout;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;
public class MainActivity extends Activity {
private RadioGroup rg=null;
private RadioButton female=null;
private RadioButton male=null;
private CheckBox swim=null;
private CheckBox run=null;
private CheckBox badminton=null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
rg=(RadioGroup)findViewById(R.id.radiogroup);
female=(RadioButton)findViewById(R.id.female);
male=(RadioButton)findViewById(R.id.male);
rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if(checkedId==female.getId()){
System.out.println("female");
Toast.makeText(MainActivity.this, "female", Toast.LENGTH_LONG).show();
}else if(checkedId==male.getId()){
System.out.println("male");
}
}
});
swim=(CheckBox)findViewById(R.id.swim);
run=(CheckBox)findViewById(R.id.run);
badminton=(CheckBox)findViewById(R.id.badminton);
swim.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
System.out.println("swim is checked");
}else{
System.out.println("swim is not checked");
}
}
});
run.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
System.out.println("run is checked");
}else{
System.out.println("run is not checked");
}
}
});
badminton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
System.out.println("badminton is checked");
}else{
System.out.println("badminton is not checked");
}
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
在布局文件中：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<RadioGroup
android:id="@+id/radiogroup"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:orientation="vertical"
>
<RadioButton
android:id="@+id/female"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="@string/female"
/>
<RadioButton
android:id="@+id/male"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="@string/male"
/>
</RadioGroup>
<CheckBox
android:id="@+id/swim"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="@string/swim"
></CheckBox>
<CheckBox
android:id="@+id/run"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="@string/run"
></CheckBox>
<CheckBox
android:id="@+id/badminton"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="@string/badminton"
></CheckBox>
</LinearLayout>