转载自：http://blog.csdn.net/archie2010/article/details/5906037

Radio.java

[java] view plain copy print ?

packagearchie.android.activity;
importandroid.app.Activity;
importandroid.os.Bundle;
importandroid.view.Gravity;
importandroid.widget.RadioButton;
importandroid.widget.RadioGroup;
importandroid.widget.TextView;
importandroid.widget.Toast;
publicclassRadioextendsActivity{
/**
*创建TextView对象
*创建RadioGroup对象
*创建4个RadioButton对象
*/
TextViewm_TextView;
RadioGroupm_RadioGroup;
RadioButtonm_Radio1,m_Radio2,m_Radio3,m_Radio4;
/**Calledwhentheactivityisfirstcreated.*/
@Override
publicvoidonCreate(BundlesavedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/**
*获得TextView对象
*获得RadioGroup对象
*获得4个RadioButton对象
*/
m_TextView=(TextView)findViewById(R.id.TextView01);
m_RadioGroup=(RadioGroup)findViewById(R.id.RadioGroup01);
m_Radio1=(RadioButton)findViewById(R.id.RadioButton1);
m_Radio2=(RadioButton)findViewById(R.id.RadioButton2);
m_Radio3=(RadioButton)findViewById(R.id.RadioButton3);
m_Radio4=(RadioButton)findViewById(R.id.RadioButton4);
/*设置事件监听*/
m_RadioGroup.setOnCheckedChangeListener(newRadioGroup.OnCheckedChangeListener(){
@Override
publicvoidonCheckedChanged(RadioGroupgroup,intcheckedId)
{
//TODOAuto-generatedmethodstub
if(checkedId==m_Radio2.getId())
{
DisplayToast("正确答案："+m_Radio2.getText()+"，恭喜你，回答正确！");
}
else
{
DisplayToast("请注意，回答错误！");
}
}
});
}
/*显示Toast*/
publicvoidDisplayToast(Stringstr)
{
Toasttoast=Toast.makeText(this,str,Toast.LENGTH_LONG);
//设置toast显示的位置
toast.setGravity(Gravity.TOP,0,220);
//显示该Toast
toast.show();
}
}

package archie.android.activity; import android.app.Activity; import android.os.Bundle; import android.view.Gravity; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.TextView; import android.widget.Toast; public class Radio extends Activity { /** * 创建TextView对象 * 创建RadioGroup对象 * 创建4个RadioButton对象 */ TextView m_TextView; RadioGroup m_RadioGroup; RadioButton m_Radio1, m_Radio2, m_Radio3, m_Radio4; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); /** * 获得TextView对象 * 获得RadioGroup对象 * 获得4个RadioButton对象 */ m_TextView = (TextView) findViewById(R.id.TextView01); m_RadioGroup = (RadioGroup) findViewById(R.id.RadioGroup01); m_Radio1 = (RadioButton) findViewById(R.id.RadioButton1); m_Radio2 = (RadioButton) findViewById(R.id.RadioButton2); m_Radio3 = (RadioButton) findViewById(R.id.RadioButton3); m_Radio4 = (RadioButton) findViewById(R.id.RadioButton4); /* 设置事件监听 */ m_RadioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { // TODO Auto-generated method stub if (checkedId == m_Radio2.getId()) { DisplayToast("正确答案：" + m_Radio2.getText() + "，恭喜你，回答正确！"); } else { DisplayToast("请注意，回答错误！"); } } }); } /* 显示Toast */ public void DisplayToast(String str) { Toast toast = Toast.makeText(this, str, Toast.LENGTH_LONG); //设置toast显示的位置 toast.setGravity(Gravity.TOP, 0, 220); //显示该Toast toast.show(); } }

main.xml

[xhtml] view plain copy print ?

<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/TextView01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<RadioGroup
android:id="@+id/RadioGroup01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_x="3px"
android:layout_y="54px"
>
<RadioButton
android:id="@+id/RadioButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/RadioButton1"
/>
<RadioButton
android:id="@+id/RadioButton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/RadioButton2"
/>
<RadioButton
android:id="@+id/RadioButton3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/RadioButton3"
/>
<RadioButton
android:id="@+id/RadioButton4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/RadioButton4"
/>
</RadioGroup>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:id="@+id/TextView01" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <RadioGroup android:id="@+id/RadioGroup01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" android:layout_x="3px" android:layout_y="54px" > <RadioButton android:id="@+id/RadioButton1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/RadioButton1" /> <RadioButton android:id="@+id/RadioButton2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/RadioButton2" /> <RadioButton android:id="@+id/RadioButton3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/RadioButton3" /> <RadioButton android:id="@+id/RadioButton4" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/RadioButton4" /> </RadioGroup> </LinearLayout>

String.xml

[xhtml] view plain copy print ?

<?xmlversion="1.0"encoding="utf-8"?>
<resources>
<stringname="hello">Android底层是基于什么操作系统？</string>
<stringname="app_name">RadioButton</string>
<stringname="RadioButton1">Windows</string>
<stringname="RadioButton2">Linux</string>
<stringname="RadioButton3">Mocos</string>
<stringname="RadioButton4">Java</string>
</resources>

android之单选框

转载自：http://blog.csdn.net/archie2010/article/details/5906037

更多相关文章

随机推荐