Develop Reference

Pass data from one design tab to another tab

I am using material design tabs as follows :
Following is my MainActivity.class :
public class MainActivity extends AppCompatActivity implements ViewPager.OnPageChangeListener {
private TabLayout tabLayout;
private ViewPager viewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tabLayout = (TabLayout) findViewById(R.id.tabs);
viewPager = (ViewPager) findViewById(R.id.viewpager);
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(this);
tabLayout.setupWithViewPager(viewPager);
}
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
System.out.println("onPageSelected Called");
}
#Override
public void onPageScrollStateChanged(int state) {
}
}
My ViewPagerAdapter is as follows :
public class ViewPagerAdapter extends FragmentPagerAdapter {
private static int count = 2;
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new FragmentOne();
case 1:
return new FragmentTwo();
}
return null;
}
#Override
public int getCount() {
return count;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position)
{
case 0 :
return "Tab One";
case 1 :
return "Tab Two";
}
return null;
}
}
and here are my Fragments :
This is my first fragment name is FragmentOne :
public class FragmentOne extends Fragment {
private EditText editText;
private Button btnSendData;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
System.out.println("IN FRAGMENT ONE");
View view = inflater.inflate(R.layout.fragment_one,container,false);
editText = (EditText) view.findViewById(R.id.et_name);
btnSendData = (Button) view.findViewById(R.id.btn_send);
btnSendData.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
FragmentTwo fragment = new FragmentTwo();
Bundle bundle = new Bundle();
bundle.putString("username",editText.getText().toString());
fragment.setArguments(bundle);
getFragmentManager.beginTransaction.replace(R.id.frag_second,fragment).commit();
}
});
return view;
}
}
and here is another fragment with name FragmentTwo :
public class FragmentTwo extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
System.out.println("IN FRAGMENT TWO");
View view = inflater.inflate(R.layout.fragment_two,container,false);
Bundle bundle = getArguments();
if(bundle!= null)
{
String value = getArguments().getString("username");
}
return view;
}
#Override
public void onResume() {
super.onResume();
System.out.println("onResume gets called");
}
}
In the second fragment i am getting data buts its adding another view with previous one.
see the image :
so I want to pass data from FragmentOne to FragmentTwo in two scenario :
1. I want to pass the data when i click on button and
2. When I swipe to FragmentTwo data should be passed
Also when I try to swipe to FragmentTwo nothing gets called in FragmentTwo ? why is it so ?
Also when I click to second tab nothing gets called .
Please help me how should i pass data to FragmentTwo on button click ?
following are layout files:
here is fragment_one
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical">
<EditText
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:id="#+id/et_name"
android:hint="Username"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<Button
android:padding="16dp"
android:text="Send Data"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:id="#+id/btn_send"
android:layout_height="wrap_content"
android:layout_width="match_parent"/>
and second fragment , fragment_second.xml :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/second_frag"
android:gravity="center">
<TextView
android:textSize="24sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Fragment Two"
android:id="#+id/textView2" />

Each fragment is associated with the parent activity. so you can't directly communicate from one fragment to another fragment. You will need to go through Parent Activity using interface.
Check this docs : https://developer.android.com/training/basics/fragments/communicating.html
On button click pass the value to methods in your custom interface and access those methods in second fragment.
when I try to swipe to FragmentTwo nothing gets called in FragmentTwo
For this you need to implement fragment life cycle - https://developer.android.com/reference/android/app/Fragment.html
UPDATE
Done with some modification in you code, just look at the foll. code -
Manifex.xml
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity"
android:theme="#style/Theme.AppCompat.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
MainActivity.java
package com.app.onkar.tabdemo;
import android.support.v4.app.Fragment;
import android.support.design.widget.TabLayout;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity implements ViewPager.OnPageChangeListener {
private Toolbar toolbar;
private TabLayout tabLayout;
private ViewPager viewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
viewPager = (ViewPager) findViewById(R.id.viewpager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new FragmentOne(), "ONE");
adapter.addFragment(new FragmentTwo(), "TWO");
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(this);
tabLayout.setupWithViewPager(viewPager);
}
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
System.out.println("onPageSelected Called");
}
#Override
public void onPageScrollStateChanged(int state) {
}
public static class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
private static int count = 2;
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new FragmentOne();
case 1:
return new FragmentTwo();
}
return null;
}
#Override
public int getCount() {
return count;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "Tab One";
case 1:
return "Tab Two";
}
return null;
}
}
}
FragmentOne.java
package com.app.onkar.tabdemo;
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
public class FragmentOne extends Fragment {
private EditText editText;
private Button btnSendData;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
System.out.println("IN FRAGMENT ONE");
View view = inflater.inflate(R.layout.fragment_one,container,false);
editText = (EditText) view.findViewById(R.id.et_name);
btnSendData = (Button) view.findViewById(R.id.btn_send);
btnSendData.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
FragmentTwo fragment = new FragmentTwo();
Bundle bundle = new Bundle();
bundle.putString("username",editText.getText().toString());
fragment.setArguments(bundle);
getActivity().getSupportFragmentManager().beginTransaction().replace(R.id.second_frag,fragment).commit();
}
});
return view;
}
}
FragmentTwo.java
package com.app.onkar.tabdemo;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class FragmentTwo extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
System.out.println("IN FRAGMENT TWO");
View view = inflater.inflate(R.layout.fragment_two,container,false);
TextView txt2 = (TextView) view.findViewById(R.id.textView2);
Bundle bundle = getArguments();
if(bundle!= null)
{
String value = getArguments().getString("username");
txt2.setText(value);
}
return view;
}
#Override
public void onResume() {
super.onResume();
System.out.println("onResume gets called");
}
}
No change in Layout files. Just try above code - it is working exactly as you want. Hope it will help!
SCREENS

ViewPagerAdapter class
public class ViewPagerAdapter extends FragmentPagerAdapter {
private static int count = 2;
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
Fragment fragmentone = new FragmentOne();
Bundle args = new Bundle();
args.putInt("code", 1);
fragmentone.setArguments(args);
return fragmentone;
break;
case 1:
Fragment fragmenttwo = new FragmentTwo();
Bundle args = new Bundle();
args.putInt("code", 2);
fragmenttwo.setArguments(args);
return fragmenttwo ;
break;
}
return null;
}
#Override
public int getCount() {
return count;
}
#Override
public CharSequence getPageTitle(int position) {
switch (position)
{
case 0 :
return "Tab One";
case 1 :
return "Tab Two";
}
return null;
}
}
args is the bundle object, you can put String int and other values to use these values in fragment use below code in onCreateView method of Fragment.
int codeForthisFragment = getArguments().getInt("code");
for button click:
FragmentTransaction ft = getFragmentManager().beginTransaction();
Fragment secondFragment = new FragmentTwo();
Bundle args = new Bundle();
args.putInt("code", 2);
secondFragment.setArguments(args);
ft.replace(R.id.content_frame, secondFragment);
ft.commit();

In the second fragment i am getting data buts its adding another view with previous one. see the image
With reference to the answer by #Roy Miller(https://stackoverflow.com/users/5255021/roy-miller),
you can solve it by doing the follwing changes:
In MainActivity.java ,replace the follwing switch:
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new FragmentOne();
case 1:
return new FragmentTwo();
}
return null;
}
With:
#Override
public Fragment getItem(int position) {
switch (position){
case 0:
return mFragmentList.get(0);
case 1:
return mFragmentList.get(1);
case 2:
return mFragmentList.get(2);
default:
return null;
}
}
And then, in FragmentOne.java
Replace this:
btnSendData.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
FragmentTwo fragment = new FragmentTwo();
Bundle bundle = new Bundle();
bundle.putString("username",editText.getText().toString());
fragment.setArguments(bundle);
getActivity().getSupportFragmentManager().beginTransaction().replace(R.id.second_frag,fragment).commit();
}
});
With:
btnSendData.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
/*This one FragmentCollection is a Singleton class that contains list of fragments, set it during initialization itself(code is attached below this code)*/
FragmentCollection fragmentCollection=FragmentCollection.getInstance();
FragmentTwo fragment = (FragmentTwo) FragmentCollection.getmFragmentList().get(2); //getting the second fragment
fragment.setText(editText.getText().toString()); //add this method in fragment two
}
});
Now inside FragmentTwo.java
Add the method:
public void updateTextView(String data){
Log.d("TabTwo","Update Text view");
TextView txt = (TextView)view.findViewById(R.id.textView2);
txt.setText(data);
}
At last, the singleton class i mentioned above:
public class FragmentCollection {
static FragmentCollection fragmentCollection=new FragmentCollection();
private final List<Fragment> mFragmentList = new ArrayList<>();
private FragmentCollection(){}
public static FragmentCollection getInstance(){
if(fragmentCollection!=null) {
return fragmentCollection;
}else {
return new FragmentCollection();
}
}
public void setmFragmentList(List<Fragment> mFragmentList){
this.mFragmentList.addAll(mFragmentList);
}
public List<Fragment> getmFragmentList(){
return mFragmentList;
}
}
The issue of getting older views overlapping is because of initializing the fragment again and again
like new FragmentTwo(); in more than one place.
So here we put it in a list and access it so only a single fragment is altered.

I am not able to go to first fragment from Second fragment . I am using tab layout
This is my code
By clicking button from 2nd Fragment
Bundle bundle = new Bundle();
bundle.putString("uniqueList1", uniqueList.get(0));
bundle.putString("uniqueList2", uniqueList.get(1));
bundle.putString("kycUniquesNo", kycUniqueNum);
CustBasicFormFragement fragObj = new CustBasicFormFragement();
fragObj.setArguments(bundle);
In 1st Fragment
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle
savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
binding = DataBindingUtil.inflate(inflater, R.layout.cust_basic_form_fragment, container, false);
view = binding.getRoot();
if (getArguments() != null) {
string1 = getArguments().getString("uniqueList1");
string2 = getArguments().getString("uniqueList2");
kycUnique=getArguments().getString("kycUniquesNo");
System.out.print(string1);
System.out.print(string2);
System.out.print(kycUnique);
return view;
}

creating a fragment hit counter

I have a really basic app that has three fragments - fragments a,b and c, each of these fragments contains a piece of text that reads "I have been visited " + tallyVariable + " this many times".
I'm not entirely sure this is the correct way of doing it as I am new to app development and fairly new to the java language, but have attempted to give it a go.
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
public class MainActivity extends FragmentActivity {
//tally variables
public int numSwipes = 0;
public int numSwipes2 = 0;
public int numSwipes3 = 0;
ViewPager viewPager = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager = (ViewPager)findViewById(R.id.pager);
FragmentManager fragmentManager = getSupportFragmentManager();
viewPager.setAdapter(new MyAdapter(fragmentManager));
}
}
class MyAdapter extends FragmentStatePagerAdapter{
// reference to MainActivity and variables
MainActivity mainActivity = new MainActivity();
int fragNumSwipes = mainActivity.numSwipes;
int fragNumSwipes2 = mainActivity.numSwipes2;
int fragNumSwipes3 = mainActivity.numSwipes3;
public MyAdapter(FragmentManager fm) {
super(fm);
}
//#Override
public Fragment getItem(int i) {
Fragment fragment = null;
if(i==0)
{
fragment = new FragmentA();
fragNumSwipes++;
}
if(i==1)
{
fragment = new FragmentB();
fragNumSwipes2++;
}
if(i==2)
{
fragment = new FragmentC();
fragNumSwipes3++;
}
return fragment;
}
#Override
public int getCount() {
return 3;
}
public CharSequence getPageTitle(int position){
if(position==0)
{
return "tab 1";
}
if(position==1)
{
return "tab 2";
}
if(position==2)
{
return "tab 3";
}
return null;
}
}
below is the code for one of the fragments (code for the rest of the fragments is identical).
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class FragmentA extends Fragment {
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_a,container,false);
}
// MyAdapter adapterVariables = new MyAdapter();
}
I have commented out the above variable declaration "adapterVariables", but when it is active, it will not let me create a reference to the MyAdapter class where the tally variables now exist? what am I missing, I think it expects something between the parenthesis?

MainActivity mainActivity = new MainActivity(); this does not create a reference to your MainActivity! The same goes for your fragments code. You are creating new instances of your classes. You can pass references in your constructors. But for your idea, you won't need this. Below, you can find a corrected version, if you have questions about it, feel free to ask!
public class MainActivity extends FragmentActivity {
//tally variables
private int numSwipes = 0;
private int numSwipes2 = 0;
private int numSwipes3 = 0;
ViewPager viewPager = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager = (ViewPager)findViewById(R.id.pager);
FragmentManager fragmentManager = getSupportFragmentManager();
viewPager.setAdapter(new MyAdapter(fragmentManager));
//instead of increasing the number in the adapter, add a listener, since this is a better place to do it.
viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
switch(position){
case 0:
numSwipes++;
break;
case 1:
numSwipes2++;
break;
case 2:
numSwipes3++;
break;
}
}
#Override
public void onPageScrollStateChanged(int state) {
}
});
}
}
class MyAdapter extends FragmentStatePagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
#Override
public int getCount() {
return 3;
}
public CharSequence getPageTitle(int position){
if(position==0)
{
return "tab 1";
}
if(position==1)
{
return "tab 2";
}
if(position==2)
{
return "tab 3";
}
return null;
}
}

Camera opening on two different tabs

I am fairly new to developing Android applications. I am trying to create an application that allows you to save a picture in the "Pictures" folder named Property_Picture.jpg using the last (camera) tab. However, both the last two tabs are opening the camera, and the picture is also not being saved once you take a picture. Any help would be greatly appreciated. Thank you!
Here is my code:
package com.example.prcentry02;
import java.io.File;
import java.util.Locale;
import android.app.Activity;
import android.app.ActionBar;
import android.app.AlertDialog;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.support.v13.app.FragmentPagerAdapter;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.view.ViewPager;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity implements ActionBar.TabListener {
SectionsPagerAdapter mSectionsPagerAdapter;
ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
getFragmentManager();
mSectionsPagerAdapter = new SectionsPagerAdapter(getFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
mViewPager
.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
actionBar.addTab(actionBar.newTab()
.setText(mSectionsPagerAdapter.getPageTitle(i))
.setTabListener(this));
}
}
#Override
public void onTabSelected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
mViewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
#Override
public void onTabReselected(ActionBar.Tab tab,
FragmentTransaction fragmentTransaction) {
}
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
if (position== mSectionsPagerAdapter.getCount()-1)
{
return CameraFragment.newInstance(position);
}
else if (position== 0)
{
return LocationFragment.newInstance(position);
}
else
{
return propertyrecordFragment.newInstance(position);
}
}
#Override
public int getCount() {
return 4;
}
#Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.PRC_Location).toUpperCase(l);
case 1:
return getString(R.string.PRC_1).toUpperCase(l);
case 2:
return getString(R.string.PRC_2).toUpperCase(l);
case 3:
return getString(R.string.Camera).toUpperCase(l);
}
return null;
}
}
public static class LocationFragment extends Fragment {
private static final String ARG_SECTION_NUMBER = "section_number";
public static LocationFragment newInstance(int sectionNumber) {
LocationFragment fragment = new LocationFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public LocationFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.location_main, container,false);
TextView textView = (TextView) rootView.findViewById(R.id.section_label);
textView.setText("Location" + this.getArguments());
return rootView;
}
}
public static class CameraFragment extends Fragment {
private static final String ARG_SECTION_NUMBER = "section_number";
public static CameraFragment newInstance(int sectionNumber) {
CameraFragment fragment = new CameraFragment();
Bundle args = new Bundle();
args.putInt(CameraFragment.ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public CameraFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.camera_main, container,false);
TextView textView = (TextView) rootView.findViewById(R.id.section_label);
textView.setText("camera" + ARG_SECTION_NUMBER);
Context context = getActivity();
PackageManager packageManager = context.getPackageManager();
if(packageManager.hasSystemFeature(PackageManager.FEATURE_CAMERA) == false){
Toast.makeText(getActivity(), "This device does not have a camera.", Toast.LENGTH_SHORT)
.show();
}
Intent imageIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File image = new File("~/Pictures/", "Property_Picture.jpg");
Uri uriSavedImage = Uri.fromFile(image);
imageIntent.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);
startActivityForResult(imageIntent,0);
return rootView;
}
}
public static class propertyrecordFragment extends Fragment {
private static final String ARG_SECTION_NUMBER = "section_number";
public static propertyrecordFragment newInstance(int sectionNumber) {
propertyrecordFragment fragment = new propertyrecordFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public propertyrecordFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.propertyrecordcard_main, container,false);
TextView textView = (TextView) rootView.findViewById(R.id.section_label);
textView.setText("PRC goes here");
return rootView;
}
}
}

Why tabs are not visible inside fragment?

In my app I want to use swipe views of four tabs inside a fragment. The four tabs are contains different fragments each and all the four fragments are sliding by swipe from right to left or vice versa. The fragments are working fine but the tabs are not visible within the fragment. Anyone have any solution for this. Thanks in advance :)
this is the main fragment which contains the tabs:-
public class DashboardTabFragment extends Fragment implements ActionBar.TabListener {
private static final String ARG_SECTION_NUMBER = "arg_section_number";
private String[] tabTitle = {"Cleanness", "Product Display", "Hygiene", "Asm Visits"};
public static DashboardTabFragment newInstance(int position) {
DashboardTabFragment fragment = new DashboardTabFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, position);
fragment.setArguments(args);
return fragment;
}
private ViewPager viewPager;
public DashboardTabFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_dashboard_tab, container, false);
setHasOptionsMenu(true);
ActionBar actionBar = ((ActionBarActivity) getActivity()).getSupportActionBar();
assert actionBar != null;
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE);
viewPager = (ViewPager) rootView.findViewById(R.id.pager);
TabPageAdapter tabPageAdapter = new TabPageAdapter(getActivity().getSupportFragmentManager(), getActivity());
viewPager.setAdapter(tabPageAdapter);
for (String aTabTitle : tabTitle)
actionBar.addTab(actionBar.newTab().setText(aTabTitle).setTabListener(this));
return rootView;
}
This is the adapter for fragments:-
public class TabPageAdapter extends FragmentPagerAdapter {
Context context;
public TabPageAdapter(FragmentManager fm,Context context) {
super(fm);
this.context = context;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new CleannessChartFragment(context);
case 1:
return new ProductDisplayChartFragment(context);
case 2:
return new HygieneChartFragment(context);
case 3:
return new AsmVisitsChartFragment(context);
}
return null;
}
#Override
public int getCount() {
return 4;
}

I found the solution. I used TabHost for tabs with viewpager.
This is my fragment :-
package com.itpp.trt;
import android.annotation.TargetApi;
import android.app.Activity;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTabHost;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TabHost;
public class DashboardTabFragment extends Fragment implements ViewPager.OnPageChangeListener {
private static final String ARG_SECTION_NUMBER = "arg_section_number";
private ViewPager mViewPager;
private TabHost tabHost;
private String[] tabSpec = {"Tab_1", "Tab_2", "Tab_3", "Tab_4"};
private String[] tabTitle = {"Cleanness", "Product Display", "Hygiene", "Asm Visits"};
private TabHost.TabContentFactory mFactory = new TabHost.TabContentFactory() {
#Override
public View createTabContent(String tag) {
View v = new View(getActivity());
v.setMinimumHeight(0);
return v;
}
};
public static DashboardTabFragment newInstance(int position) {
DashboardTabFragment fragment = new DashboardTabFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, position);
fragment.setArguments(args);
return fragment;
}
public DashboardTabFragment() {
tabHost = null;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_dashboard_tab, container, false);
mViewPager = (ViewPager) rootView.findViewById(R.id.pager);
mViewPager.setAdapter(new TabPageAdapter(getChildFragmentManager(), getActivity()));
tabHost = (TabHost) rootView.findViewById(android.R.id.tabhost);
tabHost.setup();
mViewPager.setOnPageChangeListener(this);
for (int i = 0; i < tabSpec.length; i++) {
tabHost.addTab(tabHost.newTabSpec(tabSpec[i]).setIndicator(tabTitle[i]).setContent(mFactory));
}
tabHost.setOnTabChangedListener(new TabHost.OnTabChangeListener() {
#Override
public void onTabChanged(String tabId) {
if (tabId.equals("Tab_1")) {
mViewPager.setCurrentItem(0);
} else if (tabId.equals("Tab_2")) {
mViewPager.setCurrentItem(1);
} else if (tabId.equals("Tab_3")) {
mViewPager.setCurrentItem(2);
} else if (tabId.equals("Tab_4")) {
mViewPager.setCurrentItem(3);
}
}
});
return rootView;
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MyActivity) activity).onSectionAttached(getArguments().getInt(ARG_SECTION_NUMBER));
}
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
tabHost.setCurrentTab(position);
}
#Override
public void onPageScrollStateChanged(int state) {
}
#Override
public void onDetach() {
super.onDetach();
}
}
This is my tabpager adapter :-
package com.itpp.trt;
import android.content.Context;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentStatePagerAdapter;
/**
* Created by biswajit on 28-11-14.
*/
public class TabPageAdapter extends FragmentStatePagerAdapter{
Context context;
public TabPageAdapter(FragmentManager fm,Context context) {
super(fm);
this.context = context;
}
#Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return new CleannessChartFragment(context);
case 1:
return new ProductDisplayChartFragment(context);
case 2:
return new HygieneChartFragment(context);
case 3:
return new AsmVisitsChartFragment(context);
}
return null;
}
#Override
public int getCount() {
return 4;
}
}
Hope this helps other. Thanks :)

Calling Custom ListView Adapter from Fragment Class Main Activity

I've written a few listView activities, as a proof of concept for myself that I could do it. Now, I'm having trouble loading a listView activity into a single tab for an app with multiple tabs, that allows both swiping and tab selection for navigation. I get the error "The constructor ListView_Adapter(MainActivity.DummySectionFragment) is undefined" when I try to write the code for it. I'm a beginner, and I've lurked pretty hard here for the past few days. Any help is appreciated.
TL;DR : I'm a n00b, and I can't figure out this problem.
My Custom List Adapter
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
public class CustomListViewAdapter extends ArrayAdapter<String> {
public CustomListViewAdapter (Context c) {
super(c, R.layout.list_cell);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
ListView_Text holder = null;
if (row == null)
{
LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(R.layout.list_cell, parent, false);
holder = new ListView_Text(row);
row.setTag(holder);
}
else
{
holder = (ListView_Text) row.getTag();
}
holder.populateFrom(getItem(position));
return row;
}
static class ListView_Text {
private TextView cell_name = null;
ListView_Text(View row) {
cell_name = (TextView) row.findViewById(R.id.list_cell_name);
}
void populateFrom(String index) {
cell_name.setText(index);
}
}
}
My Main Activity
import java.util.Locale;
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.FragmentTransaction;
import com.example.twigglebeta2.ListView_Adapter;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.NavUtils;
import android.support.v4.view.ViewPager;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.TextView;
public class MainActivity extends FragmentActivity implements ActionBar.TabListener {
private static ListView_Adapter listViewAdapter;
private ListView listView;
SectionsPagerAdapter mSectionsPagerAdapter;
ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Set up the action bar.
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Create adapter
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
// Switch tab selection to match current page when swiped
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
// Create a tab for each 'count' in the activity from getCount()
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
Tab thisTab = actionBar.newTab();
thisTab.setText(mSectionsPagerAdapter.getPageTitle(i));
thisTab.setTabListener(this);
actionBar.addTab(thisTab);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public void onTabSelected(ActionBar.Tab tab,FragmentTransaction fragmentTransaction) {
// When the given tab is selected, switch to the corresponding page in
// the ViewPager.
mViewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(ActionBar.Tab tab,FragmentTransaction fragmentTransaction) {
}
#Override
public void onTabReselected(ActionBar.Tab tab,FragmentTransaction fragmentTransaction) {
}
/**
* A {#link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a DummySectionFragment (defined as a static inner class
// below) with the page number as its lone argument.
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);
fragment.setArguments(args);
return fragment;
}
#Override
public int getCount() {
// Show 3 total pages.
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
case 1:
return getString(R.string.title_section2).toUpperCase(l);
case 2:
return getString(R.string.title_section3).toUpperCase(l);
}
return null;
}
}
/**
* A dummy fragment representing a section of the app, but that simply
* displays dummy text.
*/
public static class DummySectionFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
public static final String ARG_SECTION_NUMBER = "section_number";
public DummySectionFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main_dummy,container, false);
switch(getArguments().getInt(ARG_SECTION_NUMBER)){
case 1:
//The constructor ListView_Adapter(MainActivity.DummySectionFragment) is undefined
listViewAdapter = new ListView_Adapter(this);
ListView listView = (ListView) rootView.findViewById(R.id.listView1);
for (int i=0;i<20;i++)
{
listViewAdapter.add("this Index : "+i);
}
return listView;
}
TextView dummyTextView = (TextView) rootView.findViewById(R.id.section_label);
dummyTextView.setText(Integer.toString(getArguments().getInt(ARG_SECTION_NUMBER)));
return rootView;
}
}
}

Instead of listViewAdapter = new ListView_Adapter(this);, you should instead try listViewAdapter = new ListView_Adapter(getActivity().getBaseContext());
The Issue is that you are passing a Fragment to the constructor, and not an Activity context.