ViewPager+Fragment+RadioGroup实现页面联动\点击切换

废话不多说 上源码

MianActivity.java

public class MainActivity extends FragmentActivity {

/**
* 声明viewpager
*/
@ViewInject(R.id.vp_veiwpager)
private ViewPager mViewPager;

/**
* 声明list集合
*/
private List<Fragment> fragmentList;

/**
* 声明radiogroup相关按键
*/
@ViewInject(R.id.rg_radiogroup)
private RadioGroup radioGroup;
@ViewInject(R.id.rb_bookstore)
private RadioButton rbStore;
@ViewInject(R.id.rb_bookcart)
private RadioButton rbCart;
@ViewInject(R.id.rb_lately)
private RadioButton rbLately;
@ViewInject(R.id.rb_mine)
private RadioButton rbMine;

/**
* 声明viewpager 的适配器
*/
private MViewPagerAdapter mViewPagerAdapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 初始化控件
x.view().inject(this);
// 设置adapter
setAdapter();
// 设置listener
setListener();

}

/**
* 为viewpager设置适配器
*/
private void setAdapter() {
fragmentList = new ArrayList<Fragment>();
fragmentList.add(new FragmentStore());
fragmentList.add(new FragmentCart());
fragmentList.add(new FragmentLately());
fragmentList.add(new FragmentMine());
mViewPagerAdapter = new MViewPagerAdapter(getSupportFragmentManager(),
fragmentList);
mViewPager.setAdapter(mViewPagerAdapter);
// 启动程序直接加载4个界面的数据
mViewPager.setOffscreenPageLimit(4);
}

/**
* 设置viewpager跟radiogroup的监听跟联动
*/
private void setListener() {// radioGroup设置onCheckedChangeListener
radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
switch (checkedId) {
case R.id.rb_bookstore:
mViewPager.setCurrentItem(0);// setCurrentItem 设置当前项目为0
break;
case R.id.rb_bookcart:
mViewPager.setCurrentItem(1);// setCurrentItem 设置当前项目为1
break;
case R.id.rb_lately:
mViewPager.setCurrentItem(2);// setCurrentItem 设置当前项目为2
break;
case R.id.rb_mine:
mViewPager.setCurrentItem(3);// setCurrentItem 设置当前项目为3
break;

}
}
});
mViewPager.setOnPageChangeListener(new OnPageChangeListener() {
//为viewpager配置onPageChangeListener方法
@Override
public void onPageSelected(int arg0) {
switch (arg0) {
case 0:
rbStore.setChecked(true);
break;
case 1:
rbCart.setChecked(true);
break;
case 2:
rbLately.setChecked(true);
break;
case 3:
rbMine.setChecked(true);
break;

}
}

@Override
public void onPageScrolled(int arg0, float v, int arg2) {
if(v!=0){
//设置第四个fragment的透明度
FragmentMine fragment = (FragmentMine) fragmentList.get(3);
fragment.slide(v);
}
}

@Override
public void onPageScrollStateChanged(int arg0) {

}
});

}

}

ViewPagerAdapter.java

public class MViewPagerAdapter extends FragmentPagerAdapter{

private List<Fragment> fragmentList;

public MViewPagerAdapter(FragmentManager fm, List<Fragment> fragmentList) {
super(fm);
this.fragmentList = fragmentList;
}

@Override
public Fragment getItem(int arg0) {
// TODO Auto-generated method stub
return fragmentList.get(arg0);
}

@Override
public int getCount() {
// TODO Auto-generated method stub
return fragmentList.size();
}

}

Fragment

public class FragmentCart extends Fragment{

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

View view = inflater.inflate(R.layout.fragment_cart, null);

return view;

}

}