效果展示
布局文件的书写
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<RadioGroup
android:id="@+id/radiogroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_alignParentBottom="true"
android:background="#ffffff"
android:paddingTop="10dp"
android:paddingBottom="10dp"
>
<RadioButton
android:id="@+id/rabt01"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:button="@null"
android:drawableTop="@drawable/selector_radionbutton01_bg"
android:text="@string/search_name"
android:textColor="#272727"
android:gravity="center"
android:paddingLeft="5dp"
/>
<RadioButton
android:id="@+id/rabt02"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:button="@null"
android:drawableTop="@drawable/selector_radionbutton02_bg"
android:gravity="center"
android:paddingLeft="5dp"
android:text="@string/down_name"
android:textColor="#272727"
/>
<RadioButton
android:id="@+id/rabt03"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:button="@null"
android:drawableTop="@drawable/selector_radionbutton03_bg"
android:gravity="center"
android:paddingLeft="5dp"
android:text="@string/ting_name"
android:textColor="#272727"
/>
<RadioButton
android:id="@+id/rabt04"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:button="@null"
android:drawableTop="@drawable/selector_radionbutton04_bg"
android:gravity="center"
android:paddingLeft="5dp"
android:includeFontPadding="true"
android:text="@string/my_name"
android:textColor="#272727"
android:checked="false"
/>
</RadioGroup>
</RelativeLayout>
radiobutton背景选择器
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:drawable="@drawable/bg101"></item>
<item android:drawable="@drawable/bg102"></item>
</selector><?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:drawable="@drawable/bg201"></item>
<item android:drawable="@drawable/bg202"></item>
</selector><?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:drawable="@drawable/bg301"></item>
<item android:drawable="@drawable/bg302"></item>
</selector><?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:drawable="@drawable/bg401"></item>
<item android:drawable="@drawable/bg402"></item>
</selector>activity书写
package com.ht.myapp150427;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
public class MainActivity extends Activity {
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
RadioGroup radioGroup = (RadioGroup) findViewById(R.id.radiogroup);
RadioButton radioButton01 = (RadioButton) findViewById(R.id.rabt01);
RadioButton radioButton02 = (RadioButton) findViewById(R.id.rabt02);
RadioButton radioButton03 = (RadioButton) findViewById(R.id.rabt03);
RadioButton radioButton04 = (RadioButton) findViewById(R.id.rabt04);
radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup radioGroup, int checkID) {
switch (checkID) {
case R.id.rabt01:
radioButton01.setTextColor(Color.rgb(220, 20, 60));
radioButton02.setTextColor(Color.rgb(0, 0, 0));
radioButton03.setTextColor(Color.rgb(0, 0, 0));
radioButton04.setTextColor(Color.rgb(0, 0, 0));
break;
case R.id.rabt02:
radioButton02.setTextColor(Color.rgb(220, 20, 60));
radioButton01.setTextColor(Color.rgb(0, 0, 0));
radioButton03.setTextColor(Color.rgb(0, 0, 0));
radioButton04.setTextColor(Color.rgb(0, 0, 0));
break;
case R.id.rabt03:
radioButton03.setTextColor(Color.rgb(220, 20, 60));
radioButton01.setTextColor(Color.rgb(0, 0, 0));
radioButton02.setTextColor(Color.rgb(0, 0, 0));
radioButton04.setTextColor(Color.rgb(0, 0, 0));
break;
case R.id.rabt04:
radioButton04.setTextColor(Color.rgb(220, 20, 60));
radioButton01.setTextColor(Color.rgb(0, 0, 0));
radioButton02.setTextColor(Color.rgb(0, 0, 0));
radioButton03.setTextColor(Color.rgb(0, 0, 0));
break;
}
}
});
}
}
改进
??我们也可以把字体颜色的改变写一个背景选择器，这样就可以省去在代码中写监听器了。
项目代码下载地址
https://github.com/zhujainxipan/radiogroup
知识讲解
??在android开发中，往往我们需要自定义RadioButton中button图片和文字的距离，经过多番查找资料，得知解决办法如下：
- android:[email protected];//将默认的button图片清空
- android:[email protected]/radiobutton;//使用该属性定义button图片
- android:[email protected];//将radioButton的背景设为空
- android:drawablePadding=6dp;//将文字和左侧的button图片相距6dp
- button/drawableLeft/background/drawablePadding结合使用方可改变文字和图片的距离 ;
?
另外就是android选择器的知识点
?
radiogroup中如果嵌套布局，radiobutton就可以多选了，就不是我们想要的效果了。
?
android对资源文件的大小有限制，图片最大1m。
感恩：
RadioButton设置了gravity=center，发现文字还不居中，求指导
http://www.eoeandroid.com/thread-273181-1-1.html
Android RadioGroup中的RadioButton竟然能多选?
http://www.eoeandroid.com/thread-67458-1-1.html
http://blog.csdn.net/libaineu2004/article/details/41550447
Android中如何设置RadioButton在文字的右边，图标在左边？
http://www.2cto.com/kf/201208/150848.html
Android自定义radiobutton(文字靠左，选框靠右)
http://blog.csdn.net/helldevil/article/details/7963174
自定义RadioButton样式并去除默认样式位置
http://blog.csdn.net/shenyuemei/article/details/22172793
android自定义RadioGroup的RadioButton中文字和图片的距离
http://www.eoeandroid.com/thread-103444-2-1.html
Android radiobutton图片与文字间距的问题
http://www.oschina.net/question/222459_56046
时间： 2024-08-08 05:37:34