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POonTabSelected not refreshing the fragment
 

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    <p>Hi i am trying to develop an action bar navigation screen in which i m displaying two tabs.I am activating the fragments in onTabselected listener. But until i call fragementtransaction.commit() changes are not reflecting.It works only one time, i mean, if i switch to tab2 and comeback to tab1 again, the fragment is not refreshed.When switched to tab2, the content of tab2 is drawn on top of the tab1, looks like overlapping. i m posting my code here, please help me in solving this issue.</p> <p>Here is my Class:</p> <pre><code>public class ContentActivity extends FragmentActivity { @Override protected void onCreate(Bundle arg0) { this.requestWindowFeature(Window.FEATURE_ACTION_BAR); // this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND, // WindowManager.LayoutParams.FLAG_DIM_BEHIND); //this.getWindow().setDimAmount((float) 30.0); LayoutParams params = this.getWindow().getAttributes(); params.height = LayoutParams.WRAP_CONTENT; //fixed height params.width = LayoutParams.MATCH_PARENT; //fixed width this.getWindow().setGravity(Gravity.START); this.getWindow().setAttributes((android.view.WindowManager.LayoutParams) params); super.onCreate(arg0); setContentView(R.layout.layout_content); ActionBar actionbar = getActionBar(); actionbar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); ActionBar.Tab BookMarkTab = actionbar.newTab().setText("BookMarks"); ActionBar.Tab NotesTab = actionbar.newTab().setText("Notes"); // Fragment bookMarkFragment = new BookMarkFragment(); //Fragment notesFragment = new NotesFragment(); BookMarkTab.setTabListener(new ContentTabListner(BookMarkFragment.class,"BookMarks")); NotesTab.setTabListener(new ContentTabListner(NotesFragment.class,"Notes")); actionbar.addTab(BookMarkTab); actionbar.addTab(NotesTab); } class ContentTabListner implements ActionBar.TabListener { private Fragment fragment; private Class mclz; private String mTag; android.support.v4.app.FragmentTransaction fft = ContentActivity.this .getSupportFragmentManager().beginTransaction(); public ContentTabListner(Class clazz,String tag) { mclz = clazz; mTag = tag; fragment = ContentActivity.this.getSupportFragmentManager().findFragmentByTag(mTag); if (fragment != null &amp;&amp; !fragment.isDetached()) { android.support.v4.app.FragmentTransaction ft = ContentActivity.this.getSupportFragmentManager().beginTransaction(); ft.detach(fragment); ft.commit(); } } @Override public void onTabReselected(Tab tab, android.app.FragmentTransaction ft) { } @Override public void onTabSelected(Tab tab, android.app.FragmentTransaction ft) { if(fragment == null){ fragment = Fragment.instantiate(ContentActivity.this, mclz.getName(),null); fft.add(android.R.id.content,fragment, mTag); fft.commit(); }else{ fft.attach(fragment); } } @Override public void onTabUnselected(Tab tab, android.app.FragmentTransaction ft) { if(fragment != null){ fft.detach(fragment); } } } } </code></pre>
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