RadioGroup设置点击text的基本布局样本

实例样式

<android.support.v4.view.ViewPager
android:id="@+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@+id/group" />

<RadioGroup
android:id="@+id/group"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="horizontal" >

<RadioButton
android:id="@+id/radio_01"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@drawable/radio_selector"
android:button="@null"
android:checked="true"
android:gravity="center"
android:padding="10dp"
android:text="分类" />

<RadioButton
android:id="@+id/radio_02"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@drawable/radio_selector"
android:button="@null"
android:gravity="center"
android:padding="10dp"
android:text="购物车" />

<RadioButton
android:id="@+id/radio_03"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@drawable/radio_selector"
android:button="@null"
android:gravity="center"
android:padding="10dp"
android:text="我的" />
</RadioGroup>

注意：这个的布局得是RelativeLayout

FrameLayout可以换成Fragment来实现跟随滑动

按钮的选中变颜色得从drawable内创建一个xml文件在其内设置

//选中状态时的颜色，颜色不能直接在内部写，必须在values中写一个类专门写颜色
<item android:state_checked="true" android:drawable="@android:color/holo_red_dark"></item>
<item android:drawable="@android:color/holo_blue_dark"></item>

示例颜色为

<color name="colorPrimary">#3F51B5</color>
<color name="colorPrimaryDark">#303F9F</color>
<color name="colorAccent">#FF4081</color>

java代码配置

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

//去掉标题

requestWindowFeature(Window.FEATURE_NO_TITLE);

setContentView(R.layout.activity_main);

//找到控件
pager = (ViewPager) findViewById(R.id.view_pager);
group = (RadioGroup) findViewById(R.id.group);

//创建一个集合,,,泛型就是fragment
List<Fragment> list = new ArrayList<Fragment>();
list.add(new FragmentFenLei());
list.add(new FragmentCart());
list.add(new FragmentMy());

//使用适配器的构造方法,把list集合传递过去
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager(),list);
pager.setAdapter(adapter);

//给viewpager设置页面改变的监听事件
pager.setOnPageChangeListener(new OnPageChangeListener() {

@Override
public void onPageSelected(int position) {
//选中这一页的时候选中对应的radioButton...id是对应的radioButton的id
//的首先根据位置获取孩子(button),然后再获得id
group.check(group.getChildAt(position).getId());
}

@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub

}

@Override
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub

}
});

//给radioGroup设置监听
group.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// 点击的时候选中pager的一页

switch (checkedId) {
case R.id.radio_01:
pager.setCurrentItem(0, false);//可以实现不滑动的效果
break;
case R.id.radio_02:
pager.setCurrentItem(1, false);//可以实现不滑动的效果

break;
case R.id.radio_03:
pager.setCurrentItem(2, false);//可以实现不滑动的效果

break;

default:
break;
}
}
});
}

上面代码中的类

public class ViewPagerAdapter extends FragmentPagerAdapter{
List<Fragment> list;

public ViewPagerAdapter(FragmentManager fm, List<Fragment> list) {
super(fm);
this.list = list;
}
//获取当前展示的那个人fragment
@Override
public Fragment getItem(int arg0) {
// TODO Auto-generated method stub
return list.get(arg0);
}
//要展示的fragment的个数
@Override
public int getCount() {
// TODO Auto-generated method stub
return list.
4000
size();
}

}