Replace one fragment to another fragment in the swipable TabHost - android-fragments

Question

I have an activity extending fragment activity and swipable tab view. In tab view i have used fragment and Tabs pager adapter to call fragments according to the tab position.
Now i want to replace these fragment using on click items with another fragment and on back press i want the original fragment back...
But when i am clicking on the items..it do nothing...
What should i do..pls help me ...
Thanks in advance
here is my code-
This is my Homeactivity which has tab
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.home_screen);
ressources = getResources();
mViewPager = (ViewPager) findViewById(R.id.viewpager);
// Tab Initialization
initialiseTabHost();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
// Fragments and ViewPager Initialization
mViewPager.setAdapter(mAdapter);
mViewPager.setOnPageChangeListener(HomeScreen.this);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}
// Method to add a TabHost
private static void AddTab(HomeScreen activity, TabHost tabHost,
TabHost.TabSpec tabSpec) {
tabSpec.setContent(new MyTabFactory(activity));
tabHost.addTab(tabSpec);
}
// Manages the Tab changes, synchronizing it with Pages
public void onTabChanged(String tag) {
int pos = this.mTabHost.getCurrentTab();
this.mViewPager.setCurrentItem(pos);
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
// Manages the Page changes, synchronizing it with Tabs
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
int pos = this.mViewPager.getCurrentItem();
this.mTabHost.setCurrentTab(pos);
}
#Override
public void onPageSelected(int arg0) {
}
// Tabs Creation
private void initialiseTabHost() {
mTabHost = (TabHost) findViewById(android.R.id.tabhost);
mTabHost.setup();
// TODO Put here your Tabs
HomeScreen.AddTab(
this,
this.mTabHost,
this.mTabHost.newTabSpec(Button_tab).setIndicator("",
ressources.getDrawable(R.drawable.menu)));
HomeScreen.AddTab(this, this.mTabHost,
this.mTabHost.newTabSpec(Image_tab).setIndicator("",ressources.getDrawable(R.drawable.jobs)));
HomeScreen.AddTab(this, this.mTabHost,
this.mTabHost.newTabSpec(Text_tab).setIndicator("",ressources.getDrawable(R.drawable.people)));
HomeScreen.AddTab(this, this.mTabHost,
this.mTabHost.newTabSpec("line_tab").setIndicator("",ressources.getDrawable(R.drawable.calenders)));
mTabHost.setOnTabChangedListener(this);
}
#Override
public void onBackPressed() {
boolean isPopFragment = false;
String currentTabTag = mTabHost.getCurrentTabTag();
if (currentTabTag.equals(Button_tab)) {
isPopFragment = ((BaseContainerFragment)getSupportFragmentManager().findFragmentByTag(Button_tab)).popFragment();
} else if (currentTabTag.equals(Image_tab)) {
isPopFragment = ((BaseContainerFragment)getSupportFragmentManager().findFragmentByTag(Image_tab)).popFragment();
} else if (currentTabTag.equals(Text_tab)) {
isPopFragment = ((BaseContainerFragment)getSupportFragmentManager().findFragmentByTag(Text_tab)).popFragment();
} else if (currentTabTag.equals(line_tab)) {
isPopFragment = ((BaseContainerFragment)getSupportFragmentManager().findFragmentByTag(line_tab)).popFragment();
}
if (!isPopFragment) {
finish();
}
}
My XMl for HomeActivity:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".HomeScreen" >
<RelativeLayout
android:id="#+id/header"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginTop="10dp"
android:orientation="horizontal" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:src="#drawable/krma" />
<Button
android:layout_width="30dp"
android:layout_marginTop="3dp"
android:layout_height="30dp"
android:layout_marginRight="10dp"
android:layout_alignParentRight="true"
android:background="#drawable/listmenu" />
</RelativeLayout>
<TabHost
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:orientation="vertical" >
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:layout_weight="0"
android:background="#FF7519"
android:orientation="horizontal" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom" />
</LinearLayout>
</TabHost>
</RelativeLayout>
My TabsPagerAdapter is :
public class TabsPagerAdapter extends FragmentPagerAdapter {
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
switch (index) {
case 0:
return new Menu();
case 1:
return new Jobs();
case 2:
return new Applicant();
case 3:
return new Admin();
}
return null;
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return 4;
}
}
my Job fragment is :
public class Jobs extends BaseContainerFragment implements OnItemClickListener {
ListView listView;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_job, container,
false);
listView = (ListView) rootView.findViewById(R.id.list);
SharedPreferences sharedpreferences = getActivity()
.getSharedPreferences(LoginScreen.MyPREFERENCES,
Context.MODE_PRIVATE);
String loggedInEmail = sharedpreferences.getString("nameKey", "");
// String loggedInEmail="aditya.pratap#krmaa.com";
RestClient client = new RestClient(
"http://122.180.4.83:8080/krmaa/krmaa/joblist/" + loggedInEmail
+ "/1234");
client.AddHeader("GData-Version", "2");
try {
client.Execute(RequestMethod.GET);
} catch (Exception e) {
e.printStackTrace();
}
String response = client.getResponse();
Gson gson = new Gson();
String convertedStr = response.replace("\\\"", "\"");
String finalJson = convertedStr.substring(1, convertedStr.length() - 2);
JobDTO[] jobDTOList = gson.fromJson(finalJson, JobDTO[].class);
ItemAdapter adapter = new ItemAdapter(getActivity()
.getApplicationContext(), jobDTOList);
// Attach the adapter to a ListView
ListView listView = (ListView) rootView.findViewById(R.id.list);
listView.setAdapter(adapter);
// return list of jobDTO and iterate in view page.
return rootView;
}
public class JobDTOList {
List<JobDTO> jobDTOList;
public List<JobDTO> getJobDTOList() {
return jobDTOList;
}
public void setJobDTOList(List<JobDTO> jobDTOList) {
this.jobDTOList = jobDTOList;
}
}
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// Here I want to switch from 1st Tab(Fragment1) to 2nd Tab(Fragment2)
// How can I switch from 1st tab to 2nd tab here???
// Below code is not worked for me.
fragment2 fr = new fragment2();
FragmentTransaction transaction = getFragmentManager().beginTransaction();
transaction.replace(R.id.job,fr);
transaction.commit();
}
}
My xml for Job fragment is :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/job"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_alignParentTop="true"
android:orientation="horizontal" >
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="6"
android:background="#A3A385"
android:paddingBottom="10dp"
android:paddingLeft="10dp"
android:paddingTop="10dp"
android:text="Jobs"
android:textColor="#000000"
android:textSize="10pt" />
<Button
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="5dp"
android:layout_weight="1"
android:background="#A3A385"
android:text="Filter"`enter code here`
android:onClick="frag"
android:textSize="10pt" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >`enter code here`
<ListView`enter code here`
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
</ListView>
</LinearLayout>
</LinearLayout>