Develop Reference

Calling a Fragment from another fragment

I have a slinding tab with 3 fragments in it. The first fragment has a button which should open a fragment under the same sliding tab.
I have the following view:
https://drive.google.com/file/d/0B1QZMHJgpviceXlOWWFUdHdnTTQ/edit?usp=sharing
The final view i want on button click from above is as follows:
https://drive.google.com/file/d/0B1QZMHJgpvicZzlSeXhLTFFlNE0/edit?usp=sharing
I tried using replace but the fragments overlap each other.
The code for the fragmentactivity, adapter and a fragment is as follows:
public class Slidingtab extends FragmentActivity implements
ActionBar.TabListener{
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
// Tab titles
private String[] tabs = { "Post", "Recent", "Search" };
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_slidingtab);
Log.d("Slding tab", "started");
// Initilization
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Adding Tabs
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name)
.setTabListener((TabListener) this));
}
/**
* on swiping the viewpager make respective tab selected
* */
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
Log.d("Slding tab", "ended");
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.slidingtab, menu);
return true;
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
Adapter
public class TabsPagerAdapter extends FragmentPagerAdapter {
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
Log.d("adapter constructor", "started");
}
#Override
public Fragment getItem(int index) {
Log.d("adapter", "started");
switch (index) {
case 0:
// Top Rated fragment activity
return new Homefragment();
case 1:
// Games fragment activity
return new Recentfragment();
case 2:
// Movies fragment activity
return new Searchfragment();
}
Log.d("adapter", "ended");
return null;
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return 3;
}
}
HomeFragment
public class Homefragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.d("Home fragment", "started");
View rootView = inflater.inflate(R.layout.activity_homefragment, container, false);
Log.d("Home fragment", "ended");
return rootView;
}
}
I have the button in this fragment. I want the button click to open a fragment.
Any help?

Without seeing your code, I can't tell definitively, but you can try something like this:
// Create new fragment and transaction
Fragment newFragment = new ExampleFragment();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
// Replace whatever is in the fragment_container view with this fragment,
// and add the transaction to the back stack
transaction.replace(R.id.fragment_container, newFragment);
transaction.addToBackStack(null);
// Commit the transaction
transaction.commit();
Check out tutorial for more.

Grab TabText in Fragment

I have an ActionBar that contains 11 tabs and 1 fragment. I also have a ViewPager to display the fragment(s). When a tab is clicked it creates the same fragment. The tabs display dates so they change everyday. What I need is to send the text of the tab (ie. .getTabText()) to the fragment, this will change the content of the fragment. I am having so much trouble trying to figure out how to do this. Here is all my code:
public class MainActivity extends FragmentActivity implements
ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
private ArrayList<TopRatedFragment> myFragmentList = new ArrayList<TopRatedFragment>();
// Tab titles
String[] tabs = {this.getCurrentDate(-5).toString(),this.getCurrentDate(-4).toString(),this.getCurrentDate(-3).toString(), this.getCurrentDate(-2).toString(),this.getCurrentDate(-1).toString(),
this.getCurrentDate(0).toString(),
this.getCurrentDate(1).toString(), this.getCurrentDate(2).toString(), this.getCurrentDate(3).toString(), this.getCurrentDate(4).toString(), this.getCurrentDate(5).toString(),};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
for (String tab_name : tabs) {
TopRatedFragment fm = new TopRatedFragment();
fm.getTabs(tab_name);
myFragmentList.add(fm);
}
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager(), myFragmentList);
viewPager.setAdapter(mAdapter);
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Adding Tabs
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name)
.setTabListener(this));
}
actionBar.setSelectedNavigationItem(5);
/**
* on swiping the viewpager make respective tab selected
* */
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
public String getTab(Tab tab) {
return tab.getText().toString();
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
public String getCurrentDate(int offset) {
String calAsString;
DateFormat formatter = new SimpleDateFormat("MM/dd");
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, offset);
calAsString = formatter.format(cal.getTime());
return calAsString;
}
}
Here is my FragmentPagerAdapter:
public class TabsPagerAdapter extends FragmentPagerAdapter {
ArrayList<TopRatedFragment> myList;
public TabsPagerAdapter(FragmentManager fm, ArrayList<TopRatedFragment> myList) {
super(fm);
this.myList = myList;
}
#Override
public Fragment getItem(int index) {
return myList.get(index);
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return myList.size();
}
And here is my simple fragment (for now):
public class TopRatedFragment extends Fragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public void getTabs(String tabs) {
Log.e("TRF", tabs);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_top_rated, container, false);
return rootView;
}
}

Create a static newInstance method to create fragment and bundle the args for the fragment. Pull the args in the fragment.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
for (String tab_name : tabs) {
TopRatedFragment fm = new TopRatedFragment.newInstance(tab_name);
fm.getTabs(tab_name);
myFragmentList.add(fm);
}
public class TopRatedFragment extends Fragment {
public static Fragment newInstance(String position) {
TopRatedFragment f = new TopRatedFragment();
// Supply num input as an argument.
Bundle args = new Bundle();
args.putString("num", position);
f.setArguments(args);
return f;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Bundle b = getArguments();
if (b!=null){
String someText = b.containsKey("num")?b.getString("num"):null;
}

Android: Unable to replace fragment in viewpager

Hi i am trying this for 2 week and still not able to replace a fragment with another in viewpager. I have three fragments as tabs in viewpager ,when i click a button in the first fragment , i want to replace the firstfragment with fourthfragment. Iam doing a below but it is not working
productDetailFragment = new PlaceSearchFragment();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.addToBackStack("fh");
transaction.replace(R.id.maincontainer,productDetailFragment,"yourfragment").commit();
Below is my MainActivity with viewpager
public class MainActivity extends FragmentActivity implements
ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
// Tab titles
private String[] tabs = { "New", "Recent", "All" };
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initilization
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
// Adding Tabs
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name)
.setTabListener(this));
}
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// on tab selected
// show respected fragment view
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
}}
Below is my Fragmentpageadapter
public class TabsPagerAdapter extends FragmentPagerAdapter {
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
// Top Rated fragment activity
return new GetRideFragment();
case 1:
// Games fragment activity
return new PostRideFragment();
case 2:
// Movies fragment activity
return new SearchRidesFragment();
}
return null;
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return 3;
}
}
searched alot and tried different ways but i am not able to make it work.Any working example or a solution to this will be very helpful.Any help is very much appreciated

Android - Sherlock content gone after 3 swipe

I used sherlock to have action bar in android 2.3, everythings is ok but the problem is:
I have 4 tabs, after doing some works on fisrt tab if I go to the second and third tab when I came back to first tab the contetnt is ok but when I go to the last tab and then came back to the first, the conent of first fragment was restarted and everything was gone, below is my codes, why is it like that?
MainActivity:
public class MainActivity extends SherlockFragmentActivity implements
TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private com.actionbarsherlock.app.ActionBar actionBar;
private String[] tabs = { "weblog", "news", "image", "web" };
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getSupportActionBar();
actionBar.setDisplayShowTitleEnabled(false);
actionBar.setDisplayShowHomeEnabled(false);
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
actionBar.setHomeButtonEnabled(false);
viewPager.setAdapter(mAdapter);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
actionBar.addTab(actionBar.newTab().setText(tabs[0])
.setTabListener(this), false);
actionBar.addTab(actionBar.newTab().setText(tabs[1])
.setTabListener(this), false);
actionBar.addTab(actionBar.newTab().setText(tabs[2])
.setTabListener(this), false);
actionBar.addTab(actionBar.newTab().setText(tabs[3])
.setTabListener(this), true);
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
#Override
public void onTabSelected(com.actionbarsherlock.app.ActionBar.Tab tab,
android.support.v4.app.FragmentTransaction ft) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(com.actionbarsherlock.app.ActionBar.Tab tab,
android.support.v4.app.FragmentTransaction ft) {
}
#Override
public void onTabReselected(com.actionbarsherlock.app.ActionBar.Tab tab,
android.support.v4.app.FragmentTransaction ft) {
}
}
TabsPagerAdapter:
public class TabsPagerAdapter extends FragmentPagerAdapter {
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
return new Blog();
case 1:
return new News();
case 2:
return new Image();
case 3:
return new Search();
}
return null;
}
#Override
public int getCount() {
return 4;
}
}

The ViewPager typically only keeps a few fragments in an "idle" state and recreates the other fragments as a performance optimization. See this answer.
To override this behavior, you can call setOffscreenPageLimit
// keep 3 tabs in memory on either side of the current tab
viewPager.setOffscreenPageLimit(3);

how to renew the fragment when click at the tabs

I would like to create a new fragment every time when I click its tab.
I tried to get the tab and to create a fragment. But it doesn't seem to work.
Here is my code.
Main Activity
public class MainActivity extends FragmentActivity {
private static ViewPager viewPager;
private static TabsPagerAdapter mAdapter;
private static ActionBar actionBar;
// Tab titles
private String[] tabs = { "TopRated", "Hots", "NEW"};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initialization
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
//actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Adding Tabs
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name).setTabListener(tabListener));
}
/**
* on swiping the viewpager make respective tab selected
* */
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
static ActionBar.TabListener tabListener = new ActionBar.TabListener() {
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
};
TabsPagerAdapter
public class TabsPagerAdapter extends FragmentPagerAdapter {
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public int getItemPosition(Object object) {
return POSITION_NONE;
}
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
return new TopRatedFragment();
case 1:
return new HotStoryFragment();
case 2:
return new AllClassFragment();
}
return null;
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return 3;
}
One of the fragments
public class HotStoryFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.d("Refresh_F","(2) HotStory");
View rootView = inflater.inflate(R.layout.fragment_hotstory, container, false);
TextView tvStudy = (TextView)rootView.findViewById(R.id.text);
return rootView;
}