奇怪的事情發生在這裏,我創建了視圖尋呼機一個RSS feed應用程序,當我去第二個選項卡從1標籤,第三個標籤的內容來第二標籤。當我去1片從第二標籤,1片的內容來第二個選項卡。混合沒有任何邏輯的東西(或我找不到邏輯),爲什麼它發生..?有沒有才去下一個標籤清除當前標籤的方法嗎?(不知道這是正確的問題,我應該問)Android的分頁活動複製標籤
這裏是我的代碼
public class datafragment extends Fragment {
View view;
ViewPager viewPager;
TabLayout tabLayout;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
view= inflater.inflate(R.layout.sample,container,false);
viewPager = (ViewPager) view.findViewById(R.id.viewpager);
viewPager.setAdapter(new sliderAdapter(getChildFragmentManager()));
tabLayout = (TabLayout) view.findViewById(R.id.sliding_tabs);
tabLayout.post(new Runnable() {
@Override
public void run() {
tabLayout.setupWithViewPager(viewPager);
}
});
return view;
}
private class sliderAdapter extends FragmentPagerAdapter{
final String tabs[]={"tab1", "tab2","tab3"};
public sliderAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
Fragment fragment= null;
switch (position){
case 0:
fragment = new RssFragment();
break;
case 1:
fragment = new RssFragment1();
break;
case 2:
fragment = new RssFragment2();
break;
}
return fragment;
}
@Override
public int getCount() {
return 3;
}
@Override
public CharSequence getPageTitle(int position) {
return tabs[position];
}
}
}
將答案後
public class datafragment extends Fragment {
View view;
ViewPager viewPager;
TabLayout tabLayout;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
view= inflater.inflate(R.layout.sample,container,false);
viewPager = (ViewPager) view.findViewById(R.id.viewpager);
viewPager.setAdapter(new SliderAdapter(getChildFragmentManager()));
tabLayout = (TabLayout) view.findViewById(R.id.sliding_tabs);
// tabLayout.post(new Runnable() {
// @Override
// public void run() {
// tabLayout.setupWithViewPager(viewPager);
// }
// });
**setupViewPager(viewPager);**
return view;
}
private void setupViewPager(ViewPager viewPagerProfile)
{
SliderAdapter adapter = new SliderAdapter (getActivity().getSupportFragmentManager());
adapter.addFragment(new RssFragment(), "tab1");
adapter.addFragment(new RssFragment1(), "tab2");
adapter.addFragment(new RssFragment2(), "tab3");
viewPagerProfile.setAdapter(adapter);
}
public class SliderAdapter extends FragmentPagerAdapter
{
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public SliderAdapter (FragmentManager manager)
{
super(manager);
}
@Override
public Fragment getItem(int position)
{
return mFragmentList.get(position);
}
@Override
public int getCount()
{
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title)
{
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position)
{
return null;
}
}
}
請將您的xml文件 –
請參閱問題@AyushKhare –
有了您的截圖,很多事情變得更加清晰。你可能想看看這個https://stackoverflow.com/questions/37315602/weird-tab-behavior-whats-wrong-with-the-adapter –