Develop Reference

How to make 500 Questions Quiz in android with single activity?

I am creating an android app, where I'll be asking for multiple types of questions using RadioButtons. I don't want to make multiple Activities for these questions. Can anyone please tell me how to do that with a short example, of at least two questions?

You can use multiples fragments... or call the activity itself multiple times...
I did an app like yours and i choose the first method!
This is some fragment of a project that i wrote, and the activity that manipulate it, you will have to change it according to your needs.
Activity
public class CollectActivity extends FragmentActivity {
MyPageAdapter pageAdapter;
NonSwipeableViewPager pager;
SpringIndicator springIndicator;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_collect);
List<Fragment> fragments = getFragments();
pager = (NonSwipeableViewPager) findViewById(R.id.view_pager);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
PagerModelManager manager = new PagerModelManager();
manager.addCommonFragment(fragments, getTitles());
ModelPagerAdapter adapter = new ModelPagerAdapter(getSupportFragmentManager(), manager);
pager.setAdapter(adapter);
springIndicator = (SpringIndicator) findViewById(R.id.indicator);
springIndicator.setViewPager(pager);
springIndicator.setOnTabClickListener(new TabClickListener() {
#Override
public boolean onTabClick(int position) {
return false;
}
});
}
private List<Fragment> getFragments() {
List<Fragment> fList = new ArrayList<Fragment>();
fList.add(CollectFragment.newInstance("Fragment 1"));
fList.add(CollectFragment.newInstance("Fragment 2"));
fList.add(CollectFragment.newInstance("Fragment 3"));
//add your fragments with a loop
return fList;
}
private List<String> getTitles() {
return Lists.newArrayList("1", "2", "3");
}
public void swipeFragment() {
pager.setCurrentItem(pager.getCurrentItem() + 1);
}
public int getFragment() {
return pager.getCurrentItem();
}
}
Fragment
public class CollectFragment extends Fragment {
private Button openButton;
private Button confirmationCloseButton;
private Button yesRenew;
private Button noRenew;
private BroadcastReceiver udpMessages;
public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
public static final CollectFragment newInstance(String message) {
CollectFragment f = new CollectFragment();
Bundle bdl = new Bundle(1);
bdl.putString(EXTRA_MESSAGE, message);
f.setArguments(bdl);
return f;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
String message = getArguments().getString(EXTRA_MESSAGE);
View v = null;
if (message.compareTo("Fragment 1") == 0) {
v = inflater.inflate(R.layout.fragment_collect_open, container, false);
openButton = (Button) v.findViewById(R.id.open_button);
openButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i2 = new Intent();
i2.setComponent(new ComponentName("qira.com.locker", "qira.com.locker.Service.MessageService"));
i2.putExtra("Message", "CONFIRM_LOCKER_1_CLOSED");
getContext().startService(i2);
}
});
}
if (message.compareTo("Fragment 2") == 0) {
v = inflater.inflate(R.layout.fragment_collect_close, container, false);
confirmationCloseButton = (Button) v.findViewById(R.id.confirmation_close_button);
confirmationCloseButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i2 = new Intent();
i2.setComponent(new ComponentName("qira.com.locker", "qira.com.locker.Service.MessageService"));
i2.putExtra("Message", "OPEN_LOCKER_1");
getContext().startService(i2);
}
});
}
if (message.compareTo("Fragment 3") == 0) {
v = inflater.inflate(R.layout.fragment_collect_renew, container, false);
yesRenew = (Button) v.findViewById(R.id.yes_button);
noRenew = (Button) v.findViewById(R.id.no_button);
yesRenew.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
((CollectActivity) getActivity()).swipeFragment();
}
});
noRenew.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent i = new Intent(getContext(), ReserveActivity.class);
startActivity(i);
}
});
}
return v;
}
#Override
public void onResume() {
super.onResume();
udpMessages = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction() != null && intent.getAction().equals("UDP.MESSAGES.COLLECT")) {
if (intent.getExtras().getString("Type").compareTo("OPEN_LOCKER_1-LOCKER_OPENED") == 0) {
if (((CollectActivity) getActivity()).getFragment() != 0) { // onCreateView called twice, dont know why... workaround to solve this problem
((CollectActivity) getActivity()).swipeFragment();
}
}
if (intent.getExtras().getString("Type").compareTo("CONFIRM_LOCKER_1_CLOSED-TRUE") == 0) {
if (((CollectActivity) getActivity()).getFragment() != 1) { // onCreateView called twice, dont know why... workaround to solve this problem
((CollectActivity) getActivity()).swipeFragment();
}
}
}
}
};
getContext().registerReceiver(udpMessages, new IntentFilter("UDP.MESSAGES.COLLECT"));
}
#Override
public void onPause() {
super.onPause();
getContext().unregisterReceiver(udpMessages);
}
#Override
public void onDestroyView() {
super.onDestroyView();
}
}

What causes a fragment to get detached from an Activity?

I have a SignupActivity which will go through several fragments as users go through a signup process. On the last fragment, I'm calling
getActivity().setResult(Activity.RESULT_OK)
since SingupActivity intent was started for result. Some users are crashing at this point, because getActivity() is producing a NPE. I'm not able to figure out what is causing this. Screen rotation is disabled, so there is no reason that I know of for the fragment to detach from the Activity.
Any insight as to what may be causing this, and how I can resolve it?
public class SignupConfirmationFragment extends Fragment {
public static final String TAG = SignupConfirmationFragment.class.getSimpleName();
private User mNewUser;
private myAppClient mmyAppClient;
private Animation rotateAnimation;
private ImageView avatar;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mNewUser = ((SignUpActivity) getActivity()).getNewUser();
mmyAppClient = ((SignUpActivity) getActivity()).getmyAppClient();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
final View v = inflater.inflate(R.layout.fragment_signup_confirmation, null);
((TextView) v.findViewById(R.id.username_textView)).setText(((SignUpActivity) getActivity()).getNewUser().getName());
avatar = (ImageView) v.findViewById(R.id.avatar);
if (mNewUser.getAvatarImage() != null) {
avatar.setImageBitmap(mNewUser.getAvatarImage());
}
rotateAnimation = AnimationUtils.loadAnimation(getActivity(), R.anim.progress_rotate);
v.findViewById(R.id.progress_loading).startAnimation(rotateAnimation);
if (mNewUser.getAvatarImage() != null) {
startAvatarUpload();
} else if (mNewUser.getNewsletter()) {
setNewsletterStatus();
} else {
pauseForOneSecond();
}
return v;
}
private void startAvatarUpload() {
mmyAppClient.uploadUserAvatar(mNewUser.getAvatarImage(), new FutureCallback<JsonObject>() {
#Override
public void onCompleted(Exception e, JsonObject result) {
if (mNewUser.getNewsletter()) {
setNewsletterStatus();
} else {
updateFragment();
}
}
},
null,
null);
}
private void setNewsletterStatus() {
mmyAppClient.setNewsletter(mNewUser.getEmail(), mNewUser.getFirstName(), mNewUser.getLastName(), new FutureCallback<String>() {
#Override
public void onCompleted(Exception e, String result) {
//Log.d(TAG, "Result: " + result);
updateFragment();
}
});
}
private void pauseForOneSecond() {
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
#Override
public void run() {
updateFragment();
}
}, 1000);
}
private void updateFragment() {
rotateAnimation.cancel();
if (isAdded()) {
getActivity().setResult(Activity.RESULT_OK);
AnalyticsManager.logUIEvent("sign up completed");
getActivity().finish();
} else {
AnalyticsManager.logUIEvent("sign up failed");
}
}
}

According to Fragment lifecycle in Android OS, you cannot get the Activity associated with the fragment in the onCreateView, because the Activity with which the Fragment is associated will not be created at that stage.
See the figure below:
Also, refer to this link, http://developer.android.com/guide/components/fragments.html
As you can see the Activity is created in onActivityCreated which is after onCreateView, hence you'll get null if you try to call the Activity in the onCreateView. Try to call it in onActivityCreated or in onStart that should solve your problem.
I hope this helps.

Endless adapter concept for view pager

Can any one please explain how to make endless adapter concept for view pager
I am currently using view pager to see my datas. On every 10th swipe of the view pager I need to hit the server and take dynamic response and need to update the viewpager. Obviously we need to use the endless adapter concept. But I was confused with the exact concept. Anyone please do the needful...
Thanks in advance...

I’ve implemented an endless ViewPager. I think it suits you needs. The request is simulated with a time delay ​​in the AsyncTask thread.
//ViewPagerActivity
public class ViewPagerActivity extends FragmentActivity {
private ViewPager vp_endless;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_endless_view_pager);
vp_endless = (ViewPager) findViewById(R.id.vp_endless);
vp_endless.setAdapter(new FragmentViewPagerAdapter(getSupportFragmentManager()));
}
}
//FragmentViewPagerAdapter
public class FragmentViewPagerAdapter extends FragmentStatePagerAdapter {
private List<CustomObject> _customObjects;
private volatile boolean isRequesting;
private static final int ITEMS_PER_REQUEST = 10;
public FragmentViewPagerAdapter(FragmentManager fragmentManager) {
super(fragmentManager);
_customObjects = HandlerCustomObject.INSTANCE._customObjects;
}
#Override
public Fragment getItem(int position) {
CustomFragment fragment = new CustomFragment();
fragment.setPositionInViewPager(position);
if (position == _customObjects.size() && !isRequesting)
new AsyncRequestItems().execute("www.test.com");
return fragment;
}
#Override
public int getCount() {
return Integer.MAX_VALUE;
}
public class AsyncRequestItems extends AsyncTask<String, Void, Void> {
#Override
protected Void doInBackground(String... urls) {
isRequesting = true;
//Fake request lag
try {Thread.sleep(2500);}
catch (InterruptedException e) {e.printStackTrace();}
for (int i = 0; i < ITEMS_PER_REQUEST; i++) {
_customObjects.add(new CustomObject());
}
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
isRequesting = false;
}
}
}
//CustomFragment
public class CustomFragment extends Fragment {
private CustomObject _customObject;
private TextView tv_position;
private ProgressBar pb_loading;
private View root;
private int _positionInViewPager;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
root = inflater.inflate(R.layout.frament_endless_view_pager, container, false);
pb_loading = (ProgressBar) root.findViewById(R.id.pb_loading);
tv_position = (TextView) root.findViewById(R.id.tv_position);
_customObject = retrieveDataSafety();
if(_customObject != null) bindData();
else createCountDownToListenerForUpdates();
return root;
}
public void createCountDownToListenerForUpdates() {
new CountDownTimer(10000, 250) {
public void onTick(long millisUntilFinished) {
_customObject = retrieveDataSafety();
if(_customObject != null) {
bindData();
cancel();
}
}
public void onFinish() {}
}.start();
}
private CustomObject retrieveDataSafety() {
List<CustomObject> customObjects = HandlerCustomObject.INSTANCE._customObjects;
if(customObjects.size() > _positionInViewPager)
return customObjects.get(_positionInViewPager);
else
return null;
}
private void bindData() {
pb_loading.setVisibility(View.GONE);
String feedback = "Position: " + _positionInViewPager;
feedback += System.getProperty("line.separator");
feedback += "Created At: " + _customObject._createdAt;
tv_position.setText(feedback);
}
public void setPositionInViewPager(int positionAtViewPager) {
_positionInViewPager = positionAtViewPager;
}
}
//CustomObject
public class CustomObject {
public String _createdAt;
public CustomObject() {
DateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
_createdAt = dateFormat.format(new Date());
}
}
//HandlerCustomObject
public enum HandlerCustomObject {
INSTANCE;
public List<CustomObject> _customObjects = new ArrayList<CustomObject>();
}

Well, let's start from the beginning.
If you would like to have 'endless' number of pages you need to use some trick. E.g. you can't store endless number of pages in memory. Probably Android will destroy PageView everytime, when it isn't visible. To avoid destroying and recreating those views all the time you can consider recycling mechanism, which are used e.g. ListView. Here you can check and analyse idea how to implement recycling mechanism for pager adapter.
Moreover to make your UI fluid, try to make request and download new data before user gets to X0th page (10, 20, 30, 40...). You can start downloading data e.g when user is at X5th (5, 15, 25...) page. Store data from requests to model (it could be e.g. sqlite db), and user proper data based on page number.
It's just a brief of solution, but it's interesting problem to solve as well;)
Edit
I've started looking for inspiration and just found standalone view recycler implemented by Jake Wharton and called Salvage. Maybe it will be good start to create solution for your problem.

Call method of interface implements with child fragment From container activity Android

I'm stuck with communication between activity and fragment using interface. I have created activity with child fragment. I wanna do some stuff with continuous thread defined in activity and during that thread when I'm getting some result at that time I wanna trigger to child fragment to do something.
My Container Activity
public class MySpaceActivity extends BaseDrawerActivity {
private OnSetLastSeenListener mListner;
public static Thread mThread = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setHeaders(Const.MY_SPACE);
super.setSubmenus(Const.MY_SPACE,
Utils.getSubmenuList(Const.MY_SPACE, MySpaceActivity.this),
submenuBean);
// super.attachFragment(submenuBean);
}
#Override
public void setHeaderSubMenu(SubmenuBean subMenuBean) {
// txt_submenu.setText(subMenuBean.getSubmenu_name());
this.submenuBean = subMenuBean;
Log.print("::::: setHeaderSubMenu ::::");
super.attachFragment(submenuBean);
}
public void setsubFragment(SubmenuBean subMenuBean) {
this.submenuBean = subMenuBean;
super.attachSubFragment(submenuBean);
}
#Override
public void onBackPressed() {
super.onBackPressed();
popLastFragment();
}
private void popLastFragment() {
if (super.getNumberOfChilds() > 1) {
super.popSubFragment();
} else {
finish();
}
}
#Override
protected Fragment getFragement() {
StudentsFragment fragment = new StudentsFragment(Const.MY_SPACE,
getSubmenubean());
return fragment;
}
public SubmenuBean getSubmenubean() {
return submenuBean;
}
#Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
mThread = new Thread(new CountDownTimer(MySpaceActivity.this));
mThread.start();
}
#Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
if (mThread.isAlive()) {
mThread.interrupt();
mThread = null;
}
}
public void updateLastSeen(){
Log.print("::::::Call Interface::::::");
mListner.updateLastSeen();
}
class CountDownTimer implements Runnable {
private Context mContext;
private JSONObject mJsonObject;
private JSONArray mJsonArray;
public CountDownTimer(Context mContext) {
this.mContext = mContext;
}
// #Override
public void run() {
while (!Thread.currentThread().isInterrupted()) {
try {
HttpChatLastSeen mChat = new HttpChatLastSeen();
mJsonObject = mChat.Http_ChatLastSeen(mContext);
String mResult = mJsonObject.getString("Result");
if (mResult.equalsIgnoreCase(String
.valueOf(Const.RESULT_OK))) {
mJsonArray = mJsonObject.getJSONArray("UserData");
for (int i = 0; i < mJsonArray.length(); i++) {
mJsonObject = mJsonArray.getJSONObject(i);
new DbStudentMasterBll(mContext).update(
"last_seen", mJsonObject
.getString("LastSeen"), Integer
.parseInt(mJsonObject
.getString("UserId")));
}
} else {
Log.print("MY LAST SEEN Response : "
+ mJsonObject.toString());
}
updateLastSeen();
Thread.sleep(15000);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
} catch (Exception e) {
Log.print("ChatLastSeenThread : ", e.getMessage());
}
}
}
}
}
My Child Fragment With Interface :
public class StudentsFragment extends Fragment implements OnSetLastSeenListener{
TextView txt_submenu;
ListView list_students;
SubmenuBean submenuBean;
int Mainmenu;
MySpaceActivity mMySpaceActivity;
ArrayList<DbStudentMasterBean> studentsList;
StudentsAdapter mAdapter = null;
OnSetLastSeenListener mListner;
public StudentsFragment() {
super();
}
public StudentsFragment(int Mainmenu, SubmenuBean submenuBean) {
this.submenuBean = submenuBean;
this.Mainmenu = Mainmenu;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_students, container,
false);
mMySpaceActivity = (MySpaceActivity) getActivity();
txt_submenu = (TextView) view.findViewById(R.id.txt_submenu);
txt_submenu.setText(submenuBean.getSubmenu_name());
txt_submenu.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mMySpaceActivity.openDrawer();
}
});
list_students = (ListView) view.findViewById(R.id.list_colleagues);
studentsList = new DbStudentMasterBll(getActivity()).getAllRecords();
mAdapter = new StudentsAdapter(getActivity(), studentsList, handler);
list_students.setAdapter(mAdapter);
list_students.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
DbStudentMasterBean bean = (DbStudentMasterBean) parent
.getAdapter().getItem(position);
Message msg = new Message();
msg.what = CHAT;
msg.obj = bean;
handler.sendMessage(msg);
}
});
return view;
}
Handler handler = new Handler() {
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case CHAT:
submenuBean.setTag(VIEWCHATSTUDENT);
DbStudentMasterBean bean = (DbStudentMasterBean) msg.obj;
mMySpaceActivity.setsubFragment(submenuBean);
break;
}
};
};
#Override
public void updateLastSeen() {
// TODO Auto-generated method stub
Log.print("!!!!!!!!!Refresh Adapter!!!!!!!!!!!");
mAdapter.notifyDataSetChanged();
}
}
My Interface :
public interface OnSetLastSeenListener {
public void updateLastSeen();
}
So I have implemented interface OnSetLastSeenListener with my child fragment StudentsFragment . Now I'm calling method of tht interface updateLastSeen() from my container activity with thread. But it is not getting trigger to child fragment where I have implemented interface. So I don't know whether it is good way to communicate or not? Let me take your help to suggest on this solution or best way to communicate from child fragment to parent activity.
Thanks,

It is better to use interface when you want to communicate something from Fragment to Activity and not vice versa.
In your case, you can directly call the method in Fragment from Activity through fragment object. No need to use interface.
Something like this (For static fragments)
StudentsFragment fragment = (StudentsFragment) getFragmentManager()
.findFragmentById(R.id.fragmentid);
if (fragment != null && fragment.isInLayout()) {
fragment.updateLastSeen();
}
For dynamic fragment you can use the fragment object directly.

FragmentPagerAdapter not restoring fragments upon Orientation Change

EDIT: I found out that the Activity is saving the instance, but the Fragments saved data is not making it up to the Activity savedInstanceState. I'm saving the current time in the outState, but its not making its way all the way up, as the activity has nothing in its SavedInstanceState for the time and returns 'null' for the time if I print it to the logcat....
I am building an application that has the a countup and countdown timer built in. The basic hosting activity for the timers is a FragmentActivity which hosts a FragementPagerAdapter that inflates two fragments within the code (I do not give an id to the fragments within the XML as they are not defined as fragments within the .xml). Everything works great until an orientation change and then the activity looks like it looses contact with the old fragments and just chooses to create new ones. This means that any current countdown is lost and any time chosen is also lost upon configuration change. I will need to keep the count going (if its started) and any numbers currently displayed....
I know that the Adapter is supposed to handle these things on its own, and I'm setting the SetRetainInstance(true) in both the OnCreate and OnCreateView.
I put in hooks into the Fragment code to let me know whenever the saveInstanceState is NOT null so at least I know what is going on, but it seems like the instance is always NULL, and it creates from scratch...always.
Some other solutions have me overriding the instantiateItem, but it seems that its is only used for getting callbacks reset, others changing a setting in the Manifest(frowned upon).... Other solutions look to me like I have things setup right...but obviously, I'm messing something up along the way. I'm only giving code for the FragmentActivity, FragementPagerAdapter, and a bit of the Fragment code as I don't want to spam the post with code that may not be the issue.
The FragmentActivity
public class Timer_Main extends FragmentActivity {
ViewPager pager;
Timer_Pager mAdapter;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.timer_pager);
mAdapter = new Timer_Pager(this, getSupportFragmentManager());
pager = (ViewPager) findViewById(R.id.timer_pager_display);
pager.setAdapter(mAdapter);
}
public static String getTitle(Context ctxt, int position) {
// TODO Auto-generated method stub
return null;
}
#Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("pageItem", pager.getCurrentItem());
}
#Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
}
}
The FragementPagerAdapter
public class Timer_Pager extends FragmentPagerAdapter{
Context ctxt = null;
public Timer_Pager(Context ctxt, FragmentManager fm) {
super(fm);
this.ctxt = ctxt;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0: {
return(Countdown_Fragment.newInstance());
}
case 1:
return(Countup_Fragment.newInstance());
}
return null;
}
#Override
public String getPageTitle(int position) {
switch (position) {
case 0:
return(String.format(ctxt.getString(R.string.Countdown_label)));
case 1:
return(String.format(ctxt.getString(R.string.Countup_label)));
}
return null;
}
#Override
public int getCount() {
// doing only three pages, right now...one for countdown, one for countup, and one for Tabata.
return 2;
}
private static String makeFragmentName(int viewId, int position)
{
return "android:switcher:" + viewId + ":" + position;
}
}
The Fragment has a bit more code in it, so I'll push in just what should be the core of the problem....if more is needed, I'll splice it in.
public class Countdown_Fragment extends Fragment implements OnClickListener {
Calendar CountdownTime = Calendar.getInstance();
static AutoResizeTextView tv;
static ImageButton HoursUp;
static ImageButton HoursDown;
static ImageButton MinutesUp;
static ImageButton MinutesDown;
static ImageButton SecondsUp;
static ImageButton SecondsDown;
static ImageButton Reset;
static ImageButton StartPausecount;
static ImageButton Stopcount;
static Boolean Arewecounting = false;
static Boolean Arewecountingdown = false;
static AutoResizeTextView ThreetwooneGO;
static MyCountdownTimer Countdown_Timer_Activity;
ThreetwooneCount Start_countdown;
static Long MillstoPass;
static Countdown_Fragment newInstance() {
Countdown_Fragment frag = new Countdown_Fragment();
return (frag);
}
#Override
public void onSaveInstanceState(Bundle outState) {
outState.putString("CurrentTimer", (String) tv.getText());
Log.v("status", "saved fragment state" + tv.getText());
super.onSaveInstanceState(outState);
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}
#Override
public void onCreate(Bundle savedInstanceState) {
setRetainInstance(true);
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
setRetainInstance(true);
View result = inflater.inflate(R.layout.countdown_timer_layout,
container, false);
tv = (AutoResizeTextView) result.findViewById(R.id.timer_textview);
tv.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
new TimePickerDialog(getActivity(), t, 0, 0, true).show();
}
});
if (savedInstanceState != null) {
Log.v("status", "fragment is NOT empty");
tv.setText(savedInstanceState.getString("CurrentTimer",
tv.toString()));
} else {
Log.v("status", "fragment is empty");
// tv.setText("00:00:00");
}
tv.resizeText();
ThreetwooneGO = (AutoResizeTextView) result
.findViewById(R.id.timer_countdown_text);
HoursUp = (ImageButton) result.findViewById(R.id.hours_up);
HoursDown = (ImageButton) result.findViewById(R.id.hours_down);
MinutesUp = (ImageButton) result.findViewById(R.id.minutes_up);
MinutesDown = (ImageButton) result.findViewById(R.id.minutes_down);
SecondsUp = (ImageButton) result.findViewById(R.id.seconds_up);
SecondsDown = (ImageButton) result.findViewById(R.id.seconds_down);
Reset = (ImageButton) result.findViewById(R.id.reset);
StartPausecount = (ImageButton) result
.findViewById(R.id.startpausecount);
Stopcount = (ImageButton) result.findViewById(R.id.stopcount);
HoursUp.setOnClickListener(this);
HoursDown.setOnClickListener(this);
SecondsUp.setOnClickListener(this);
SecondsDown.setOnClickListener(this);
MinutesUp.setOnClickListener(this);
MinutesDown.setOnClickListener(this);
Reset.setOnClickListener(this);
StartPausecount.setOnClickListener(this);
Stopcount.setOnClickListener(this);
return (result);
}
public void chooseTime(View v) {
new TimePickerDialog(getActivity(), t, 0, 0, true).show();
}
TimePickerDialog.OnTimeSetListener t = new TimePickerDialog.OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
CountdownTime.set(Calendar.HOUR_OF_DAY, hourOfDay);
CountdownTime.set(Calendar.MINUTE, minute);
CountdownTime.set(Calendar.SECOND, 0);
CountdownTime.set(Calendar.MILLISECOND, 0);
updateLabel();
}
};
private void updateLabel() {
String entiretime;
entiretime = String.format("%tT", CountdownTime);
tv.setText(entiretime);
}
Here is my timer that I'm using for Countdown....
public class MyCountdownTimer {
private long millisInFuture;
private long countDownInterval;
Countdown_Fragment ctxt;
AutoResizeTextView Timer_edit;
private volatile boolean IsStopped = false;
public MyCountdownTimer(long pMillisInFuture, long pCountDownInterval,
AutoResizeTextView Artv) {
this.millisInFuture = pMillisInFuture;
this.countDownInterval = pCountDownInterval;
Timer_edit = Artv;
}
public void Start() {
final Handler handler = new Handler();
final Runnable counter = new Runnable() {
public void run() {
if (IsStopped == false) {
if (millisInFuture <= 0) {
Countdown_Fragment.done_counting();
} else {
long sec = millisInFuture / 1000;
Timer_edit.setText(String.format("%02d:%02d:%02d",
sec / 3600, (sec % 3600) / 60, (sec % 60)));
millisInFuture -= countDownInterval;
handler.postDelayed(this, countDownInterval);
}
}
}
};
handler.postDelayed(counter, countDownInterval);
}
public void Cancel() {
IsStopped = true;
Timer_edit = null;
Log.v("status", "Main Timer cancelled");
// this.ctxt = null;
}
public long whatisourcount(){
return(millisInFuture);
}
}

As it turns out, the RetainInstance was causing a conflict between itself and the ViewPager/Adapter/FragmentManager doing their things . Removing it caused the Pager to properly rebuilt the Fragment, including the TextView I had, where it did not before. I also start to recieve a Bundle in the OnCreateView, where that was always null before with the RetainInstance set to True.
I had to remove the RetainInstance and utilize the OnSaveInstanceState and OnCreateView to pass in the current status of the Fragment before it was destroyed, and then re-create it in OnCreateView to reset the Fragment to its state before it was destroyed.
I was hoping that the Runnable that I was using to do the countdown would survive, or I would be able to reattach it, but I couldn't find a way. I had to save the current count in Milliseconds, and pass back to the Fragment to continue where it left off. Its not that big of a deal, but I am curious to see if you can truely re-attach all those things. The Runnable DOES still continue after the config change, but it doesn't update anything on the UI anymore, so I try to cancel the callbacks and null it when I'm inside OnSaveInstanceState.
I'm also reading items where I only need to use RetainInstance for items that have a AsyncTask attached or another similar item....otherwise, just rebuild it within the code.