Develop Reference

Two fragments refactoring into one

I created two fragments: 'scheduleFragment' and 'clockFragment'. After setting up
public class ClockFragment extends AppCompatActivity implements View.OnClickListener {
private int notificationId = 1;
in MainActivity.java, the pageAdapter
scheduleFragment = new ScheduleFragment();
clockFragment = new ClockFragment();
tabLayout.setupWithViewPager(viewPager);
ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager(), 0);
viewPagerAdapter.addFragment(clockFragment, "Clock");
viewPagerAdapter.addFragment(scheduleFragment, "Schedule");
viewPager.setAdapter(viewPagerAdapter);
creates an error that states I have to switch refactor the clockFragment into the scheduleFragment so one fragment is created.
I need these two fragments because, in the ClockFragment (tab), the clock must appear to users and on the ScheduleFragment (tab), the schedule of users is present. I am not sure how I can separate the two tabs without causing an error.
Some explanation over why this error occurs and a solution will be greatly appreciated.
public class MainActivity extends AppCompatActivity {
private Toolbar toolbar;
private ViewPager viewPager;
private TabLayout tabLayout;
private ScheduleFragment scheduleFragment;
private ClockFragment clockFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ViewPager viewPager = findViewById(R.id.view_pager);
viewPager.setAdapter(new ViewPagerAdapter(getSupportFragmentManager()));
toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
viewPager = findViewById(R.id.view_pager);
tabLayout = findViewById(R.id.tab_layout);
scheduleFragment = new ScheduleFragment();
clockFragment = new ClockFragment();
tabLayout.setupWithViewPager(viewPager);
tabLayout.getTabAt(0).setIcon(R.drawable.ic_baseline_add_alarm_24);
tabLayout.getTabAt(1).setIcon(R.drawable.ic_baseline_assignment_turned_in_24);
}
private class ViewPagerAdapter extends FragmentPagerAdapter {
private List<Fragment> fragments = new ArrayList<>();
private List<String> fragmentTitle = new ArrayList<>();
public ViewPagerAdapter(#NonNull FragmentManager fm, int behavior) {
super(fm, behavior);
}
public ViewPagerAdapter(FragmentManager supportFragmentManager) {
super(supportFragmentManager);
}
public void addFragment(ClockFragment fragment, String title) {
fragments.add(fragment);
fragmentTitle.add(title);
}
#NonNull
#Override
public Fragment getItem(int position) {
return fragments.get(position);
}
#Override
public int getCount() {
return fragments.size();
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
return fragmentTitle.get(position);
}
}
}

First ClockFragment extends Activity which means it is not a fragment.
I will give you an example of how you should do things:
public class ChildFragment1 extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View rootView = inflater.inflate(R.layout.child_fragment_1_layout, container, false);
Button buttonInFragment1 = rootView.findViewById(R.id.button_1);
buttonInFragment1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getContext(), "button in fragment 1", Toast.LENGTH_SHORT).show();
}
});
return rootView;
}
}
Now do Fragment 2:
public class ChildFragment2 extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View rootView = inflater.inflate(R.layout.child_fragment_1_layout, container, false);
Button buttonInFragment1 = rootView.findViewById(R.id.button_1);
buttonInFragment1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getContext(), "button in fragment 2", Toast.LENGTH_SHORT).show();
}
});
return rootView;
}
}
Now add a new class for the adapter:
public class ViewPagerAdapter extends FragmentPagerAdapter {
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position)
{
case 0:
return new ChildFragment1(); //ChildFragment1 at position 0
case 1:
return new ChildFragment2(); //ChildFragment2 at position 1
}
return null; //does not happen
}
#Override
public int getCount() {
return 2; //three fragments
}
}
And your MainActivity would look something like this:
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ViewPager viewPager = findViewById(R.id.view_pager);
viewPager.setAdapter(new ViewPagerAdapter(getSupportFragmentManager()));
}
}

TabLayout always shows the last fragment

I am trying to fill Tablayout from 2 different fragments depending on the value (0 or 1) of the argument Radios.newInstance(int type)
The first fragment contains all radio stations and the second contains the favorite stations
But it shows me always the fragment containing the favorite stations
public class HomeFragment extends Fragment {
public static final String TAG = "HomeFragment";
private SectionsPagerAdapter mSectionsPagerAdapter;
private ProgressBar mProgressView;
private ViewGroup mContainer;
private BaseActivity activity;
public HomeFragment() {
}
public static HomeFragment newInstance() {
return new HomeFragment();
}
public void showProgress(final boolean show) {
mContainer.setVisibility(show ? View.GONE : View.VISIBLE);
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_home, container, false);
activity = (BaseActivity) getActivity();
activity.findViewById(R.id.tabs).setVisibility(View.VISIBLE);
getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
activity.getSupportActionBar().show();
mProgressView = (ProgressBar) activity.findViewById(R.id.progress);
mContainer = container;
showProgress(true);
ViewPager mViewPager = (ViewPager) view.findViewById(R.id.container);
List<Fragment> fragments = new Vector<Fragment>();
fragments.add(RadiosFragment.newInstance(0));
fragments.add(RadiosFragment.newInstance(1));
mSectionsPagerAdapter = new SectionsPagerAdapter(getChildFragmentManager(), fragments);
mViewPager.setAdapter(mSectionsPagerAdapter);
TabLayout tabLayout = (TabLayout) activity.findViewById(R.id.tabs);
tabLayout.setVisibility(View.VISIBLE);
tabLayout.setTabMode(TabLayout.GRAVITY_CENTER);
tabLayout.setupWithViewPager(mViewPager);
showProgress(false);
return view;
}
public class SectionsPagerAdapter extends FragmentStatePagerAdapter {
private List<Fragment> mFragments;
public SectionsPagerAdapter(FragmentManager fm, List<Fragment> fragments) {
super(fm);
mFragments = fragments;
}
#Override
public Fragment getItem(int position) {
return mFragments.get(position);
}
#Override
public int getCount() {
return 2;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "RADIOS";
case 1:
return "FAVORITES";
default:
return null;
}
}
}
}
This is the fragment that i want to show, if type == 0 it shows the all radio stations, and if type == 1 it shows the favorite stations
public class RadiosFragment extends Fragment {
private static String TYPE = "NONE";
private FirebaseRecyclerAdapter<FireBaseManager.Radio, ViewHolder> mAdapter = null;
private FirebaseRecyclerAdapter<FireBaseManager.Favorites, ViewHolder> mAdapter_fav = null;
private RecyclerView recyclerView;
public ArrayList<FireBaseManager.Favorites> listOrder;
public RadiosFragment() { }
public static RadiosFragment newInstance(int type) {
if (type == 1 )
TYPE = "favorite";
else
TYPE = "radios";
RadiosFragment fragment = new RadiosFragment();
Bundle args = new Bundle();
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_item_list, container, false);
final Context context = view.getContext();
getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
recyclerView = (RecyclerView) view.findViewById(R.id.list);
recyclerView.setLayoutManager(new LinearLayoutManager(context));
Query query = FireBaseManager.Radio.Ref.orderByChild(FireBaseManager.Radio.Table.Name.text);
ProgressDialog progressDialog = new ProgressDialog(getContext());
if (TYPE == "favorite"){
....
#Override
protected void populateViewHolder(ViewHolder viewHolder, FireBaseManager.Favorites model, int position) {
...
viewHolder.Initialize(Data);
...
}
};
recyclerView.setAdapter(mAdapter_fav);
}
});
}
else if(TYPE == "radios") {
....
#Override
protected void populateViewHolder(ViewHolder viewHolder, FireBaseManager.Radio model, int position) {
...
viewHolder.Initialize(Data);
...
});
}
};
recyclerView.setAdapter(mAdapter);
});
}
return view;
}
}
I think the problem has to do with onCreateView / onCreate but i am no sure, can you help me please.

This might help you.
mViewPager.setCurrentItem(0);
Add this line after you setup tabLayout with viewpager

thank you very much for your answers, i have found a solution for my problem.
the solution is to add Listener on the Tablayout and intercept the events.
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
if (tab.getPosition() == 0)
getActivity().getSupportFragmentManager().beginTransaction().replace(R.id.flContent, RadiosFragment.newInstance(0), FavoriteActivity.TAG).addToBackStack(null).commit();
if (tab.getPosition() == 1)
getActivity().getSupportFragmentManager().beginTransaction().replace(R.id.flContent, RadiosFragment.newInstance(1), FavoriteActivity.TAG).addToBackStack(null).commit();
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});

NullPointerException a call tag fragment ViewPager

Need help, trying to invoke a method fragment of Activity, I think that is not correct ask tags for fragments.
so ask tags:
public class TitleAdapter extends FragmentPagerAdapter {
public final String titles[] = new String[] { "A", "B", "C" };
public final Fragment frags[] = new Fragment[titles.length];
public TitleAdapter(FragmentManager fm) {
super(fm);
frags[0] = new FragmentA();
fm.beginTransaction().add(frags[0], "fragA").commit();
frags[1] = new FragmentB();
fm.beginTransaction().add(frags[1], "fragB").commit();
frags[2] = new FragmentC();
fm.beginTransaction().add(frags[2], "fragC").commit();
}
#Override
public CharSequence getPageTitle(int position) {
Log.v("TitleAdapter - getPageTitle=", titles[position]);
return titles[position];
}
#Override
public Fragment getItem(int position) {
Log.v("TitleAdapter - getItem=", String.valueOf(position));
return frags[position];
}
#Override
public int getCount() {
return frags.length;
}
}
Feel right from causing onCreate(Bundle savedInstanceState)
public class MainActivity extends FragmentActivity {
TitleAdapter titleAdapter;
ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mViewPager = (ViewPager) findViewById(R.id.pager);
TitleAdapter titleAdapter = new TitleAdapter(getSupportFragmentManager());
mViewPager.setAdapter(titleAdapter);
mViewPager.setCurrentItem(1);
mViewPager.setOffscreenPageLimit(2);
FragmentManager fm = getSupportFragmentManager();
FragmentA fragment = (FragmentA)fm.findFragmentByTag("fragA");
fragment.bgStop();
Here the method itself
public class FragmentA extends Fragment {
final static String LOG_TAG = "myLogs";
static Button btnPlay;
public FragmentA() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_a, container, false);
btnPlay = (Button) rootView.findViewById(R.id.btnStart);
return rootView;
}
public void bgPlay(){
btnPlay.setText("Play");
btnPlay.setBackgroundResource(R.drawable.play_button);
}
public void bgStop(){
btnPlay.setText("Stop");
btnPlay.setBackgroundResource(R.drawable.stop_button);
}
}

There are so many problems with that code. Here, let me fix that for you.
The following is untested, just edited in my favourite text editor.
public class TitleAdapter extends FragmentPagerAdapter {
public final String titles[] = new String[] { "A", "B", "C" };
public final Fragment frags[] = new Fragment[titles.length];
public TitleAdapter(FragmentManager fm) {
super(fm);
// do not commit any fragments here, the adapter handles that.
frags[0] = new FragmentA();
frags[1] = new FragmentB();
frags[2] = new FragmentC();
}
#Override
public CharSequence getPageTitle(int position) {
Log.v("TitleAdapter - getPageTitle=", titles[position]);
return titles[position];
}
#Override
public Fragment getItem(int position) {
Log.v("TitleAdapter - getItem=", String.valueOf(position));
return frags[position];
}
#Override
public int getCount() {
return frags.length;
}
}
Then in the activity:
public class MainActivity extends FragmentActivity {
TitleAdapter titleAdapter;
ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mViewPager = (ViewPager) findViewById(R.id.pager);
final TitleAdapter titleAdapter = new TitleAdapter(getSupportFragmentManager());
mViewPager.setAdapter(titleAdapter);
mViewPager.setCurrentItem(1);
mViewPager.setOffscreenPageLimit(2);
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
Fragment fragment = titleAdapter.getItem(position);
// Ideally use some sort of interface here.
if (fragment instanceof FragmentA) {
((FragmentA) fragment).bgStop();
}
}
});
}
}

Viewpager and Sherlock Fragments. How to do somethng inside fragment from FragmentActivity?

I have a parent SherlockFragmentActivity class that contains ViewPager with 4 Fragments inside.
One of them extends from SherlockListFragment and I want to scroll it to top by click on it's tab.
MainActivity class:
public class MainActivity extends SherlockFragmentActivity {
ViewPager viewPager;
TabAdapter tabAdapter;
#Override
public void onCreate(Bundle savedInstanceState) {
setTheme(Constants.THEME);
viewPager = new ViewPager(this);
viewPager.setId(R.id.pager);
viewPager.setBackgroundResource(R.color.background_color);
tabAdapter = new TabAdapter(this,viewPager);
super.onCreate(savedInstanceState);
setContentView(viewPager);
// Action bar setup
setupTabs(savedInstanceState);
}
private void setupTabs(Bundle savedInstanceState) {
final ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
for (int i = 1; i <= 4; i++) {
ActionBar.Tab tab = getSupportActionBar().newTab();
switch (i) {
case 1:
tab.setText(R.string.feed).setTabListener(tabAdapter);
tabAdapter.addTab(EventListFragment.class);
break;
case 2:
tab.setText(R.string.downloads).setTabListener(tabAdapter);
tabAdapter.addTab(LocalEventListFragment.class);
break;
case 3:
tab.setText(R.string.tags).setTabListener(tabAdapter);
tabAdapter.addTab(TagsFragment.class);
break;
case 4:
tab.setText(R.string.settings).setTabListener(tabAdapter);
tabAdapter.addTab(SettingsFragment.class);
break;
}
getSupportActionBar().addTab(tab);
}
}
TabAdapter class:
public static class TabAdapter extends FragmentPagerAdapter implements ViewPager.OnPageChangeListener, ActionBar.TabListener {
private final Context mContext;
private final ArrayList<Class<?>> classes = new ArrayList<Class<?>>();
private final ArrayList<Fragment> mFragments = new ArrayList<Fragment>();
private final ActionBar mActionBar;
private final ViewPager mViewPager;
public TabAdapter(SherlockFragmentActivity activity, ViewPager pager){
super(activity.getSupportFragmentManager());
mContext = activity;
mActionBar = activity.getSupportActionBar();
mViewPager = pager;
mViewPager.setAdapter(this);
mViewPager.setOnPageChangeListener(this);
}
public void addTab(Class<?> clss){
classes.add(clss);
mFragments.add(Fragment.instantiate(mContext, clss.getName(),
null));
}
#Override
public Fragment getItem(int i) {
return mFragments.get(i);
}
public int getId(int index){
return mFragments.get(index).getId();
}
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
// fixed double call onTabReselected
if (mActionBar.getSelectedNavigationIndex() != position)
mActionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrollStateChanged(int i) {
}
#Override
public int getCount() {
return 4;
}
#Override
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
mViewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
final int position = tab.getPosition();
final Fragment fragment = mFragments.get(position);
if (fragment != null) {
switch (position) {
case 0:
// call tab's ListFragment scroll to top item
((EventListFragment) fragment).scrollToTop();
break;
case 1:
// do something
break;
}
}
}
onTabReselected called, then user press current tab, so I try to do EventListFragment scrolling:
EventListFragment class:
public class EventListFragment extends SherlockListFragment {
#Override
public void onCreate(Bundle state) {
super.onCreate(state);
mAdapter = new EventListAdapter(getSherlockActivity());
setListAdapter(mAdapter);
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setRetainInstance(true);
}
#Override
public final View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View eventListLayout = inflater.inflate(R.layout.eventlist_fragment,null);
ListView lv = (ListView) eventListLayout.findViewById(android.R.id.list);
ViewGroup parent = (ViewGroup) lv.getParent();
//Remove ListView and add PullToRefreshListView in its place
int lvIndex = parent.indexOfChild(lv);
parent.removeViewAt(lvIndex);
mPullToRefreshListView = onCreatePullToRefreshListView(inflater, savedInstanceState);
parent.addView(mPullToRefreshListView, lvIndex, lv.getLayoutParams());
return eventListLayout;
}
public void scrollToTop() {
if (getSherlockActivity() != null) { // null after screen rotation
final ListView listView = getListView();
listView.post(new Runnable(){
public void run() {
listView.smoothScrollToPosition(0);
}});
}
}
It works on application start, but after screen rotation scrollToTop - getSherlockActivity() returns null.
If remove this condition check, have an exception:
java.lang.IllegalStateException: Content view not yet created
at android.support.v4.app.ListFragment.ensureList(ListFragment.java:328)
at android.support.v4.app.ListFragment.getListView(ListFragment.java:222)
at com.project.fragment.EventListFragment.scrollToTop(EventListFragment.java:337)
at com.project.MainActivity$TabAdapter.onTabReselected(MainActivity.java:411)
at com.actionbarsherlock.internal.app.ActionBarWrapper$TabWrapper.onTabReselected(ActionBarWrapper.java:327)
I haven't totally understatinding how to ViewPager and its FragmentPagerAdapter works. So can't find a problem, that occurs.

Use this FragmentPageAdapter:
public class TestFragmentAdapter extends FragmentPagerAdapter implements IconPagerAdapter {
protected static final String[] CONTENT = new String[] { "CATEGORIAS", "PRINCIPAL", "AS MELHORES", };
protected static final int[] ICONS = new int[] {
R.drawable.perm_group_calendar,
R.drawable.perm_group_camera,
R.drawable.perm_group_device_alarms,
};
private int mCount = CONTENT.length;
public TestFragmentAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {Fragment f = null;
switch(position){
case 0:
{
f = new ArrayListFragment();//YourFragment
// set arguments here, if required
Bundle args = new Bundle();
f.setArguments(args);
break;
}
case 1:
{
f = new HomeFragment();//YourFragment
// set arguments here, if required
Bundle args = new Bundle();
f.setArguments(args);
break;
}
case 2:
{
f = new EndlessCustomView();//YourFragment
// set arguments here, if required
Bundle args = new Bundle();
f.setArguments(args);
break;
}
default:
throw new IllegalArgumentException("not this many fragments: " + position);
}
return f;
}
#Override
public int getCount() {
return mCount;
}
#Override
public CharSequence getPageTitle(int position) {
return TestFragmentAdapter.CONTENT[position % CONTENT.length];
}
#Override
public int getIconResId(int index) {
return ICONS[index % ICONS.length];
}
public void setCount(int count) {
if (count > 0 && count <= 10) {
mCount = count;
notifyDataSetChanged();
}
}
}
This Activity:
public class BaseSampleActivity extends SlidingFragmentActivity {
private static final Random RANDOM = new Random();
TestFragmentAdapter mAdapter;
ViewPager mPager;
PageIndicator mIndicator;
protected ListFragment mFrag;
#Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.themed_titles);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mAdapter = new TestFragmentAdapter(getSupportFragmentManager());
mPager = (ViewPager)findViewById(R.id.pager);
mPager.setAdapter(mAdapter);
mPager.setCurrentItem(1);
mIndicator = (TitlePageIndicator)findViewById(R.id.indicator);
mIndicator.setViewPager(mPager);
}

Applied solution according to this post:
MainActivity class:
//...
#Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
FragmentManager manager = getSupportFragmentManager();
for (int i = 0; i < tabAdapter.getClasses().size(); i++) {
String className = tabAdapter.getClasses().get(i).getName();
if (manager.findFragmentByTag(className) != null) {
manager.putFragment(outState, className, manager.findFragmentByTag(className));
}
}
}
//...
TabAdapter class:
//...
public void addTab(Class<?> clss, FragmentManager manager, Bundle savedInstanceState) {
classes.add(clss);
String className = clss.getName();
tags.add(className);
Fragment fragment;
if (savedInstanceState != null) {
fragment = manager.getFragment(savedInstanceState, className);
if (fragment == null) {
fragment = createFragment(className);
manager.beginTransaction().add(fragment, className);
}
} else {
fragment = createFragment(className);
manager.beginTransaction().add(fragment, className);
}
mFragments.add(fragment);
}
//...
where createFragment is a simple method, that creates needed fragment by passed class name.

Animation inside a fragment that is in viewpager

I have a problem. As said i have ViewPager with 5 Fragments inside. On the last fragment i have two relative layouts with some widgets inside. On button click i have animations that changes relative layouts to visible.
My problem is that when i scroll back the view that is gone becomes visible all by himself... Anybody experienced something similar???
public class WelcomeActivity extends FragmentActivity{
private FragmentAdapter adapter;
private ViewPager viewPager;
#Override
protected void onCreate(Bundle arg0) {
super.onCreate(arg0);
setContentView(R.layout.welcome_activity);
viewPager = (ViewPager) findViewById(R.id.pager);
adapter = new FragmentAdapter(getSupportFragmentManager(), viewPager);
viewPager.setAdapter(adapter);
}
public class FragmentAdapter extends FragmentPagerAdapter{
private ViewPager pager;
private Fragment mFragmentAtPos0;
private FragmentManager mFragmentManager;
public FragmentAdapter(FragmentManager fm, ViewPager p) {
super(fm);
this.pager = p;
this.mFragmentManager = fm;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new ScreenWelcome(pager, this);
case 1:
return new ScreenTutorial1();
case 2:
return new ScreenTutorial2();
case 3:
return new ScreenTutorial3();
case 4:
return new ScreenTutorial4();
case 5:
return new FlipAnimationFragment();
default:
return null;
}
}
#Override
public int getItemPosition(Object object) {
return super.getItemPosition(object);
}
#Override
public int getCount() {
return 6;
}
public class FlipAnimationFragment extends Fragment{
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.flip_animation, container, false);
layout = (RelativeLayout) view.findViewById(R.id.layout);
sign_up = (RelativeLayout) view.findViewById(R.id.relativeLayoutSignUp);
log_in = (RelativeLayout) view.findViewById(R.id.relativeLayoutLogIn);
create_account_page = (Button) view.findViewById(R.id.buttonCreateAccount);
log_in_page = (Button) view.findViewById(R.id.buttonSignUpLogIn);
log_in_page.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(!pressed){
pressed = true;
layout.startAnimation(flip);
}
}
});
create_account_page.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(!pressed){
pressed = true;
layout.startAnimation(flip);
}
}
});
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
flip = new FlipAnimator(sign_up, log_in, 240, 400);
}