人生就像钟表，，可以回到起点，却已不是昨天！
本讲内容：ViewPager+FragmentPagerAdapter+RadioGroup实现底部菜单栏
示例一：可滑动可点击并且由Fragment管理（布局文件和上一讲相同，这里就不贴了）
下面是res/layout/activity_main.xml 布局文件：
<LinearLayout xmlns:android=""xmlns:tools=""android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical" ><include layout="@layout/top" /><android.support.v4.view.ViewPagerandroid:id="@+id/id_viewPager"android:layout_width="match_parent"android:layout_height="0dp"android:layout_weight="1.0"/><include layout="@layout/bottom"/></LinearLayout>
/** * 四个Fragment页卡设置适配器 */public class MyFragmentPagerAdapter extends FragmentPagerAdapter {private List<Fragment> fragments;public MyFragmentPagerAdapter(FragmentManager fm,List<Fragment> fragments) {super(fm);this.fragments=fragments;}public Fragment getItem(int position) {return fragments.get(position);}public int getCount() {return fragments.size();}}
下面是MainActivity.java主界面文件：
public class MainActivity extends FragmentActivity {private RadioGroup mRadioGroup;private RadioButton mRadio01;private RadioButton mRadio02;private RadioButton mRadio03;private RadioButton mRadio04;private ViewPager mViewPager;private MyFragmentPagerAdapter mAdapter;private List<Fragment> mFragments=new ArrayList<Fragment>();protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initViews();initEvent();}private void initViews() {mRadioGroup=(RadioGroup) findViewById(R.id.id_radioGroup);mRadio01=(RadioButton) findViewById(R.id.id_tab1);mRadio02=(RadioButton) findViewById(R.id.id_tab2);mRadio03=(RadioButton) findViewById(R.id.id_tab3);mRadio04=(RadioButton) findViewById(R.id.id_tab4);mFragments.add(new Tab01Fragment());mFragments.add(new Tab02Fragment());mFragments.add(new Tab03Fragment());mFragments.add(new Tab04Fragment());mViewPager=(ViewPager) findViewById(R.id.id_viewPager);mAdapter=new MyFragmentPagerAdapter(getSupportFragmentManager(), mFragments);mViewPager.setAdapter(mAdapter);}private void initEvent(){mRadioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {public void onCheckedChanged(RadioGroup group, int checkedId) {switch (checkedId) {case R.id.id_tab1:mViewPager.setCurrentItem(0);//选择某一页break;case R.id.id_tab2:mViewPager.setCurrentItem(1);break;case R.id.id_tab3:mViewPager.setCurrentItem(2);break;case R.id.id_tab4:mViewPager.setCurrentItem(3);break;}}});mViewPager.setOnPageChangeListener(new TabOnPageChangeListener());}/** * 页卡滑动改变事件 */public class TabOnPageChangeListener implements OnPageChangeListener{//当滑动状态改变时调用 public void onPageScrollStateChanged(int state) {}//当前页面被滑动时调用public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {}//当新的页面被选中时调用public void onPageSelected(int position) {switch (position) {case 0:mRadio01.setChecked(true);break;case 1:mRadio02.setChecked(true);break;case 2:mRadio03.setChecked(true);break;case 3:mRadio04.setChecked(true);break;}}}}
Take your time and enjoy it 要原码的、路过的、学习过的请留个言，顶个呗～～
钱财何足贵，仁义值千金。
