Develop Reference

Cannot see widgets in tab layout in android studio

I am facing the problem of cannot see widgets in tab layouts. I have created textview and button in Overview Fragment but I cannot see them when run code. Is it right to initialize textviews and buttons in oncreateview() of fragment which we don't want to transfer to another tab. I have searched a lot about my problem but cannot get any hint. Code is given below:
package com.example.progluattempt;
import androidx.appcompat.app.AppCompatActivity;
import androidx.viewpager.widget.ViewPager;
import android.os.Bundle;
import com.google.android.material.tabs.TabItem;
import com.google.android.material.tabs.TabLayout;
public class GlucosePlotterTips extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_glucose_plotter_tips);
TabLayout Tablayout1 = findViewById(R.id.Tablayout1);
TabItem OverviewTab = findViewById(R.id.Overviewtab);
TabItem HistoryTab = findViewById(R.id.Historytab);
TabItem TipsTab = findViewById(R.id.Tipstab);
ViewPager Viewpager1 = findViewById(R.id.viewpagery1);
PagerAdapter pagerAdapter = new PagerAdapter(getSupportFragmentManager(), Tablayout1.getTabCount());
Viewpager1.setAdapter(pagerAdapter);
Tablayout1.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
Viewpager1.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
}
//PgeAdapter
package com.example.progluattempt;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter;
public class PagerAdapter extends FragmentPagerAdapter {
private int numoftabs;
public PagerAdapter(FragmentManager fm, int numoftabs){
super(fm);
this.numoftabs = numoftabs;
}
#NonNull
#Override
public Fragment getItem(int position) {
switch(position){
case 0:
return new OverviewFragment();
case 1:
return new HistoryFragment();
case 2:
return new TipsFragment();
default:
return null;
}
}
#Override
public int getCount() {
return numoftabs;
}
}
//Main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".GlucosePlotterTips">
<com.google.android.material.tabs.TabLayout
android:id="#+id/Tablayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.004">
<com.google.android.material.tabs.TabItem
android:id="#+id/Overviewtab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Overview" />
<com.google.android.material.tabs.TabItem
android:id="#+id/Historytab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="History" />
<com.google.android.material.tabs.TabItem
android:id="#+id/Tipstab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Tips" />
</com.google.android.material.tabs.TabLayout>
<androidx.viewpager.widget.ViewPager
android:id="#+id/viewpagery1"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
//fragmentOverview
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".OverviewFragment">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="183dp"
android:orientation="vertical">
<TextView
android:id="#+id/textViewov2"
android:layout_width="match_parent"
android:layout_height="56dp"
android:text="#string/overview1"
android:textColor="#color/black"
android:textSize="24sp"
android:textStyle="bold" />
<TextView
android:id="#+id/textViewov3"
android:layout_width="match_parent"
android:layout_height="46dp"
android:text="TextView"
android:textColor="#color/black"
android:textSize="18sp" />
</LinearLayout>
<Button
android:id="#+id/buttonov2"
android:layout_width="277dp"
android:layout_height="93dp"
android:layout_gravity="center"
android:text="#string/planner"
android:textColor="#color/black"
android:textSize="24sp"
app:backgroundTint="#color/Yellow" />
//OverviewFragment
package com.example.progluattempt;
import android.content.Intent;
import android.os.Bundle;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
public class OverviewFragment extends Fragment {
TextView Results, Condition;
Button Mybuttonov2;
public OverviewFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_overview, container, false);
Results = (TextView) view.findViewById(R.id.textViewov2);
Intent i =getActivity().getIntent();
String LatestReading=i.getStringExtra("TimeofReading");
Results.setText("Last Checked: " +LatestReading);
//type
Condition = (TextView) view.findViewById(R.id.textViewov3);
String TypeofDiab = i.getStringExtra("Concentration");
Condition.setText("" +TypeofDiab);
//Button
Mybuttonov2 = (Button) view.findViewById(R.id.buttonov2);
//to display conditon of user
if(Condition.getText() != null){
String num;
int numi=0;
num = Condition.getText().toString();
try{
numi = Integer.parseInt(num);
}catch(NumberFormatException ex){
}
if(numi <= 70){
System.out.println("Hypoglycemia");}
else if(numi >=70 & numi <= 140){
System.out.println("Fine");}
else if(numi>140 & numi <200){
System.out.println("Prediabetes");}
else {
System.out.println("Hyperglycemia");
}
}
//to add click event for button
Mybuttonov2.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
Intent i3 = new Intent(getActivity(), SensorScreen.class );
startActivity(i3);
}
});
return view;
}
}
Logcat
When run emulator

how to find button id of host activity in the fragment and send data to the host activity in the fragment

Edit: I changed my code as per the suggestion, but my app still crashes. I posted the error to the bottom of the question
I have been trying for 2 days to send an edittext data from a fragment to the main activity with a click of a button that is not in the fragment (it is in the host activity), and having trouble doing this even though I feel like the answer is probably simple!
There are answers on here that suggest an interface but I can not find any examples that don't use a button from in the fragment. When I attempt to find a button outside of the fragment and then send the data I get a runtime error.
My code
FormActivity.java, the part of the code that is supposed to receive the string is at the bottom in submitFormEntries
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import androidx.viewpager.widget.PagerAdapter;
import androidx.viewpager.widget.ViewPager;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.text.Editable;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import com.google.android.material.tabs.TabLayout;
public class FormActivity extends AppCompatActivity{
private static final String TAG = "PROCESS";
TabLayout tabLayout;
ViewPager viewPager;
oneFragment fragA = new oneFragment(); // this line can cause crashes
//or set to 0 and change it dynamically in the onPageSelected method
private int numFrags = 2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_formactivity);
viewPager = findViewById(R.id.viewPager);
tabLayout = findViewById(R.id.tabLayout);
getTabs();
//Add onPageChangeListener to get the position of the current tab and change the button text based on the position
viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
Button back = findViewById(R.id.backButton);
Button next = findViewById(R.id.nextButton);
Button mainReturn = findViewById(R.id.mainReturn);
Button submit = findViewById(R.id.submitButton);
PagerAdapter adapter = viewPager.getAdapter();
//numFrags = viewPager.getAdapter().getCoBunt() -1; - dynamically get new frags
if (position == 0) {
back.setVisibility(View.GONE);
next.setVisibility(View.VISIBLE);
mainReturn.setVisibility(View.VISIBLE);
}
else if (adapter != null && position == numFrags) {
back.setVisibility(View.VISIBLE);
next.setVisibility(View.GONE);
submit.setVisibility(View.VISIBLE);
}
else {
back.setVisibility(View.VISIBLE);
next.setVisibility(View.VISIBLE);
mainReturn.setVisibility(View.GONE);
submit.setVisibility(View.GONE);
}
}
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageScrollStateChanged(int state) {
}
});
}
//Add fragments to viewPager using the object ViewPagerAdapter
public void getTabs(){
final ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());
new Handler().post(new Runnable() {
#Override
public void run() {
viewPagerAdapter.addFragment(oneFragment.getInstance(),null); // `oneFragment.getInstance()` should be inside `FragmentPagerAdapter.getItem()`
viewPagerAdapter.addFragment(twoFragment.getInstance(),null); // `twoFragment.getInstance()` should be inside `FragmentPagerAdapter.getItem()`
viewPagerAdapter.addFragment(threeFragment.getInstance(),null); // `threeFragment.getInstance()` should be inside `FragmentPagerAdapter.getItem()`
viewPager.setAdapter(viewPagerAdapter);
tabLayout.setupWithViewPager(viewPager);
}
});
}
//METHODS FOR THE BUTTON LISTENERS
public void goBack(View view) {
viewPager.setCurrentItem(viewPager.getCurrentItem()-1);
}
public void goNext(View view) {
viewPager.setCurrentItem(viewPager.getCurrentItem() + 1);
}
public void submitFormEntries(View view) {
Intent intent = getIntent();
String message = intent.getStringExtra("Answer One");
Log.d(TAG, message);
}
public void returnToMainMenu(View view) {
Log.d(TAG, "returnToMainMenu: ");
}
}
My fragment code oneFragment.java:
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
public class oneFragment extends Fragment{
private EditText answer_One;
public static oneFragment getInstance() {
oneFragment oneFragment = new oneFragment();
return oneFragment;
}
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.page_one, container, false);
final Button submit = (Button) getActivity().findViewById(R.id.submitButton);
answer_One = (EditText) view.findViewById(R.id.answerOne);
if(answer_One != null){
submit.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent intent = new Intent(requireActivity().getBaseContext(),
FormActivity.class);
intent.putExtra("Answer One", answer_One.toString());
getActivity().startActivity(intent);
}
});
}
return view;
}
#Override
public void onAttach(#NonNull Context context) {
super.onAttach(context);
}
#Override
public void onDetach() {
super.onDetach();
}
}
ViewPagerAdaper.java
import java.util.ArrayList;
import java.util.List;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentStatePagerAdapter;
public class ViewPagerAdapter extends FragmentStatePagerAdapter {
private List<Fragment> fragmentList = new ArrayList<>(); // this line can cause crashes
private List<String> stringList = new ArrayList<>();
public ViewPagerAdapter(#NonNull FragmentManager fm) {
super(fm);
}
#NonNull
#Override
public Fragment getItem(int position) {
return fragmentList.get(position);
}
#Override
public int getCount() {
return fragmentList.size();
}
#Nullable
#Override
public CharSequence getPageTitle(int position) {
return stringList.get(position);
}
public void addFragment(Fragment fragment, String title){
fragmentList.add(fragment); // this line can cause crashes
stringList.add(title);
}
}
My error messages, edited to reflect answer
2021-01-07 19:08:07.767 8786-8786/net.larntech.tablayout E/AndroidRuntime: FATAL EXCEPTION: main
Process: net.larntech.tablayout, PID: 8786
java.lang.IllegalStateException: Fragment oneFragment{9ca3c26} (7a20c5f2-8918-4de4-98a6-bed63353b415)} not attached to an activity.
at androidx.fragment.app.Fragment.requireActivity(Fragment.java:833)
at net.larntech.tablayout.oneFragment$1.onClick(oneFragment.java:37)
at android.view.View.performClick(View.java:6294)
at android.view.View$PerformClick.run(View.java:24770)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
EDIT: Here are the xmls
The main activity: activity_formctivity.xml
<?xml version="1.0" encoding="utf-8"?>
<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"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
tools:context=".FormActivity">
<androidx.viewpager.widget.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<Button
android:id="#+id/backButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/back"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:onClick="goBack"
android:visibility="gone"/>
<Button
android:id="#+id/mainReturn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/mainReturn"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:onClick="returnToMainMenu"
android:visibility="visible"/>
<Button
android:id="#+id/nextButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/next"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:onClick="goNext"/>
<Button
android:id="#+id/submitButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/submit"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:onClick="submitFormEntries"
android:visibility="gone"/>
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:tabBackground="#drawable/tab_selector"
app:tabIndicatorHeight="0dp" />
</androidx.constraintlayout.widget.ConstraintLayout>
</RelativeLayout>
fragment xml file page_one.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/titleOne"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="32dp"
android:text="#string/title_one"
android:textColor="#color/colorPrimaryDark"
android:textSize="32sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/questionOne"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:text="#string/questionOne"
android:textColor="#color/colorPrimaryDark"
android:textSize="18sp"
app:layout_constraintBottom_toTopOf="#+id/descriptionOne"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/descriptionOne"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:text="#string/descriptionOne"
android:textSize="18sp"
app:layout_constraintBottom_toTopOf="#+id/answerOne"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<EditText
android:id="#+id/answerOne"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:hint="#string/answerHintOne"
android:inputType="textMultiLine"
android:maxLines="4"
android:minLines="4"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
I need to do this with quite a few fragments by the way, so solutions like bundles and sharedprefs are not ideal. If the answer is to set up an interface, how do I go about doing this?

In your fragmentOne, you can't call getView() in onCreateView as the fragment view is not created yet; actually onCreateView() creates the fragment View and returns it.
So to solve this, you need to use the inflated view itself instead.
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.page_one, container, false);
// answer_One = (EditText) getView().findViewById(R.id.answerOne); // returns NPE
answer_One = (EditText) view.findViewById(R.id.answerOne); // << Use this
...
UPDATE
You need to access activity's button in onResume of the fragment as below
#Override
public void onResume() {
super.onResume();
final Button submit = (Button) (FormActivity getActivity()).findViewById(R.id.submitButton);
submit.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent intent = new Intent(requireActivity().getBaseContext(),
FormActivity.class);
intent.putExtra("Answer One", answer_One.toString());
getActivity().startActivity(intent);
}
});
}
And remove the button and its listener from onCreateView() method

The correct way to implement a regular FragmentPagerAdapter is:
public class ViewPagerAdapter extends FragmentPagerAdapter {
public ViewPagerAdapter(FragmentManager fragmentManager) {
super(fragmentManager);
}
#Override
public Fragment getItem(int position) {
if(position == 0) return new OneFragment();
if(position == 1) return new TwoFragment();
if(position == 2) return new ThreeFragment();
throw new IllegalStateException("Unexpected position " + position);
}
#Override
public int getCount() {
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
if(position == 0) return "ONE";
if(position == 1) return "TWO";
if(position == 2) return "THREE";
throw new IllegalStateException("Unexpected position " + position);
}
}
Then, to communicate from Fragment to Activity, the current Google-recommended approach is to use an Activity-scoped ViewModel that hosts a MutableLiveData.
public class MyViewModel extends ViewModel {
private final SavedStateHandle handle;
public MyViewModel(SavedStateHandle handle) {
this.handle = handle;
}
public final MutableLiveData<String> data = handle.getLiveData("data", "");
}
Then
public class MyActivity extends AppCompatActivity {
private MyViewModel myViewModel;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.my_activity);
myViewModel = new ViewModelProvider(this).get(MyViewModel.class);
}
}
And
public class MyFragment extends Fragment {
private MyViewModel myViewModel;
#Override
protected void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
myViewModel = new ViewModelProvider(requireActivity()).get(MyViewModel.class);
}
}
Then you can mutate the LiveData and observe it for changes.

Refresh/update listview current tab

I have three tabs with an unique fragment. How by images:
3 tab and a fragment
First problem is that when I click on "I watch it" on a movie and swipe on Watched's tab, this tab isn't updated.
https://i.imgur.com/AnnN3Zq.png?1
https://i.imgur.com/DsLGn3r.png
After if I swipe/tap on Notify's tab and comeback on Watched's tab, the tab has been updated. Why? Where am I wrong?
CoreActivity.java
package com.example.msnma.movienotifier;
import android.annotation.TargetApi;
import android.app.FragmentTransaction;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import com.example.msnma.movienotifier.MoviesFragment;
import android.support.v4.view.ViewPager;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TabHost;
import android.widget.Toast;
import com.example.msnma.movienotifier.adapter.MoviesAdapter;
import com.example.msnma.movienotifier.notify.NotificationReceiver;
import com.example.msnma.movienotifier.event.TwoPaneEvent;
import org.greenrobot.eventbus.EventBus;
import butterknife.BindView;
import static android.support.v4.view.PagerAdapter.POSITION_NONE;
import static com.google.common.reflect.Reflection.initialize;
import static java.security.AccessController.getContext;
public class CoreActivity extends AppCompatActivity implements TabLayout.OnTabSelectedListener {
SectionsPageAdapter mSectionsPageAdapter;
#BindView(R.id.movies)
ViewPager mViewPager;
#BindView(R.id.tabs)
TabLayout tabLayout;
boolean twoPane;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_core);
Toolbar toolbar = (Toolbar) findViewById(R.id.my_toolbar);
setSupportActionBar(toolbar);
if (findViewById(R.id.movie_detail) != null) {
twoPane = true;
}
mSectionsPageAdapter = new SectionsPageAdapter(getSupportFragmentManager(), twoPane);
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setOffscreenPageLimit(1);
mViewPager.setAdapter(mSectionsPageAdapter);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);
tabLayout.addOnTabSelectedListener(
new TabLayout.ViewPagerOnTabSelectedListener(mViewPager) {
#Override
public void onTabSelected(TabLayout.Tab tab) {
super.onTabSelected(tab);
final int numTab = tab.getPosition();
//Toast.makeText(getApplicationContext(),tab.getText(), Toast.LENGTH_LONG).show();
switch (tab.getPosition()) {
case 0: {
MoviesAdapter.setTipo(String.valueOf(MoviesFragment.Type.NOTIFY));
break;
}
case 1: {
MoviesAdapter.setTipo(String.valueOf(MoviesFragment.Type.SUGGESTED));
break;
}
case 2: {
MoviesAdapter.setTipo(String.valueOf(MoviesFragment.Type.WATCHED));
break;
}
}
}
});
mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
//mViewPager.setCurrentItem(position);
// ci sono vicinissimo alla soluzione.
if(position == 0 || position == 2) {
Fragment getFragment = getSupportFragmentManager().getFragments().get(position);
if (getFragment instanceof MoviesFragment) {
MoviesFragment thisFragment = (MoviesFragment) getFragment;
thisFragment.onRefresh();
Log.i("REFRESH","Dovrebbe essere refreshato");
}
Log.i("PAGINASELEZIONATA", "Esegue onResume " + position);
}
//Toast.makeText(CoreActivity.this,"Tab "+position,Toast.LENGTH_LONG).show();
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
EventBus.getDefault().postSticky(new TwoPaneEvent(twoPane));
}
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_second, menu);
//MenuItem item = menu.findItem(R.id.search);
//searchView.setMenuItem(item);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item)
{
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings)
{
return true;
}
return super.onOptionsItemSelected(item);
}
public void pressAccountButton(MenuItem item)
{
Intent intent = new Intent(this, AccountActivity.class);
startActivity(intent);
}
//nuovo codice
#Override
protected void onResume()
{
super.onResume();
if (!(mSectionsPageAdapter == null)) {
mSectionsPageAdapter.notifyDataSetChanged();
Log.i("INFOonResume", "Metodo onResume eseguito");
}
}
#Override
public void onTabSelected(TabLayout.Tab tab) {
//Log.i("INFOTAB", "La tabella selezionata è "+tab.getTag());
onResume();
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
}
Tap Notify's tap (believe also could tap on Suggested) and tap again Watched's tap
Second problem
In Watched's tab the textView are cut, why? How can I solve this?
MoviesAdapter.java
package com.example.msnma.movienotifier.adapter;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.DatePickerDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.support.annotation.Nullable;
import android.support.v7.widget.RecyclerView;
import android.text.InputType;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;
import com.bumptech.glide.Glide;
import com.example.msnma.movienotifier.MainActivity;
import com.example.msnma.movienotifier.MoviesFragment;
import com.example.msnma.movienotifier.R;
import com.example.msnma.movienotifier.database.MovieDatabase;
import com.example.msnma.movienotifier.databaseModel.MovieDBModel;
import com.example.msnma.movienotifier.model.Movie;
import java.util.Calendar;
import java.util.List;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.Optional;
import static android.app.PendingIntent.getActivity;
import static com.example.msnma.movienotifier.MoviesFragment.*;
public class MoviesAdapter extends RecyclerView.Adapter<MoviesAdapter.ViewHolder>{
private Context context;
private List<Movie> movies;
private View itemView;
private RecyclerView rv;
//per la data
private EditText fromDateEtxt;
private boolean active = false;
//private Context context;
private static String tipo = "NOTIFY";
public MoviesAdapter(Context context, List<Movie> movies) {
this.context = context;
this.movies = movies;
}
#Override
public MoviesAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
View itemView;
/*if(getTipo().equals("Suggested"))
{
itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_movie, parent, false);
return new ViewHolder(itemView);
}
else if(getTipo().equals("Watched"))
{
itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_movie_watched, parent, false);
return new ViewHolder(itemView);
}
else if(getTipo().equals("Notify"))
{*/
itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_movie, parent, false);
return new ViewHolder(itemView);
//}
//return null;
}
#Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
Movie movie = movies.get(position);
Glide.with(context)
.load(movie.getPosterUrl())
.placeholder(R.drawable.poster_placeholder)
.into(holder.posterView);
holder.title_movie.setText(movie.getTitle());
// prende solo la data + anno
String yourString = String.valueOf(movie.getReleaseDate());
String date = yourString.substring(0, 10);
String year = yourString.substring(yourString.length()-5,yourString.length());
holder.release_date.setText(date+year);
if(getTipo().equals("NOTIFY"))
{
Toast.makeText(context,"Notify", Toast.LENGTH_LONG).show();
holder.notifyButton.setVisibility(View.GONE);
holder.watchedButton.setVisibility(View.GONE);
holder.removeButton.setVisibility(View.VISIBLE);
}
//solo se è di tipo suggested
if(getTipo().equals("SUGGESTED"))
{
//disabilitare bottone remove
holder.removeButton.setVisibility(View.GONE);
holder.notifyButton.setVisibility(View.VISIBLE);
holder.watchedButton.setVisibility(View.VISIBLE);
Toast.makeText(context,"Suggested", Toast.LENGTH_LONG).show();
holder.notifyButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
/*String testo = movies.get(position).getTitle().toString();
Toast tostato = Toast.makeText(context,testo,Toast.LENGTH_SHORT);
tostato.show();*/
alertFormElements(position);
}
});
holder.watchedButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
/*String testo = movies.get(position).getTitle()+ "\n" + "I WATCH IT";
Toast tostato = Toast.makeText(context,testo,Toast.LENGTH_SHORT);
tostato.show();*/
// public MovieDBModel(int id, String title, String overview, String posterUrl, String backdropUrl, String trailerUrl,
// Date releaseDate, float rating, boolean adult){
MovieDBModel mdm = new MovieDBModel(movies.get(position).getId(), movies.get(position).getTitle(), movies.get(position).getOverview(),
movies.get(position).getPosterUrl(), movies.get(position).getBackdropUrl(), movies.get(position).getTrailerUrl(),
movies.get(position).getReleaseDate(), movies.get(position).getRating(), movies.get(position).isAdult());
MovieDatabase.insertMovie(mdm, 2, MainActivity.getMovieDatabase());
String testo = "Added " + movies.get(position).getTitle() + "\n" + "in tab watched";
Toast tostato = Toast.makeText(context, testo, Toast.LENGTH_SHORT);
tostato.show();
}
});
}
if (getTipo().equals("WATCHED"))
{
holder.notifyButton.setVisibility(View.GONE);
holder.watchedButton.setVisibility(View.GONE);
holder.removeButton.setVisibility(View.VISIBLE);
holder.removeButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view)
{
//da implementare
}
});
Toast.makeText(context,"WATCHED", Toast.LENGTH_LONG).show();
}
}
//nuovo codice riguardo l'alerDialog
public final void alertFormElements(final int position)
{
/*
* Inflate the XML view. activity_main is in
* res/layout/form_elements.xml
*/
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View formElementsView = inflater.inflate(R.layout.form_elements,
null, false);
// You have to list down your form elements
/*final CheckBox myCheckBox = (CheckBox) formElementsView
.findViewById(R.id.myCheckBox);*/
final RadioGroup genderRadioGroup = (RadioGroup) formElementsView
.findViewById(R.id.NotifyAlertRadioGroup);
//nuovo codice
genderRadioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener()
{
#Override
public void onCheckedChanged(RadioGroup group, int checkedId)
{
switch (checkedId)
{
case R.id.OneDayRadioButton:
actv(false);
break;
case R.id.ReleaseDayRadioButton:
actv(false);
break;
case R.id.OnRadioButton:
actv(true);
break;
}
}
});
//questo sarà sostituito con un calendario.
/*final EditText nameEditText = (EditText) formElementsView
.findViewById(R.id.nameEditText);*/
//parte data
fromDateEtxt = (EditText) formElementsView.findViewById(R.id.nameEditText);
fromDateEtxt.setEnabled(active);
fromDateEtxt.setClickable(active);
fromDateEtxt.setInputType(InputType.TYPE_NULL);
fromDateEtxt.requestFocus();
//metodo data
//setDateTimeField();
//fromDatePickerDialog.show();
fromDateEtxt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final Calendar c = Calendar.getInstance();
DatePickerDialog dpd = new DatePickerDialog( context ,
new DatePickerDialog.OnDateSetListener() {
#Override
public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
fromDateEtxt.setText(dayOfMonth + "-"
+ (monthOfYear + 1) + "-" + year);
}
},
c.get(Calendar.YEAR),
c.get(Calendar.MONTH),
c.get(Calendar.DAY_OF_MONTH));
dpd.show();
}
});
// the alert dialog
new AlertDialog.Builder(context).setView(formElementsView)
.setTitle(movies.get(position).getTitle()+" Notify")
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#TargetApi(11)
public void onClick(DialogInterface dialog, int id) {
//fromDateEtxt.setText(dateFormatter.format(newDate.getTime()));
String toastString = "";
String titleMovie = movies.get(position).getTitle();
String releaseDate = String.valueOf(movies.get(position).getReleaseDate());
String date = releaseDate.substring(0, 10);
String year = releaseDate.substring(releaseDate.length()-5,releaseDate.length());
releaseDate = date+year;
toastString = toastString + titleMovie + "\n" + releaseDate +"\n";
/*
* Detecting whether the checkbox is checked or not.
*/
/*if (myCheckBox.isChecked()) {
toastString += "Happy is checked!\n";
} else {
toastString += "Happy IS NOT checked.\n";
}*/
/*
* Getting the value of selected RadioButton.
*/
// get selected radio button from radioGroup
int selectedId = genderRadioGroup.getCheckedRadioButtonId();
// find the radiobutton by returned id
RadioButton selectedRadioButton = (RadioButton) formElementsView
.findViewById(selectedId);
if(selectedRadioButton.getId() == R.id.OnRadioButton)
{
toastString += "Selected radio button is: " + fromDateEtxt.getText();
}
else {
toastString += "Selected radio button is: "
+ selectedRadioButton.getText() + "!\n";
}
/*
* Getting the value of an EditText.
*/
/*toastString += "Name is: " + nameEditText.getText()
+ "!\n";*/
Toast toast = Toast.makeText(context, toastString, Toast.LENGTH_LONG);
toast.show();
dialog.cancel();
}
}).show();
}
//nuovo codice
/*#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
convertView = mInflater.inflate(R.layout.list_item_movie, null);
holder = new ViewHolder();
holder.title_movie = (TextView) convertView.findViewById(R.id.movie_title);
holder.release_date = (TextView) convertView
.findViewById(R.id.movie_release_date);
Movie row_pos = movies.get(position);
//holder.profile_pic.setImageResource(row_pos.getProfile_pic_id());
holder.title_movie.setText(row_pos.getTitle());
holder.release_date.setText((CharSequence) row_pos.getReleaseDate());
//holder.contactType.setText(row_pos.getContactType());
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
return convertView;
}*/
#Override
public void onViewRecycled(ViewHolder holder) {
super.onViewRecycled(holder);
Glide.clear(holder.posterView);
}
#Override
public int getItemCount() {
return movies.size();
}
public static class ViewHolder extends RecyclerView.ViewHolder {
#BindView(R.id.poster)
public ImageView posterView;
#BindView(R.id.movie_title)
public TextView title_movie;
#BindView(R.id.movie_release_date)
public TextView release_date;
#BindView(R.id.editNotify)
public Button notifyButton;
#BindView(R.id.iWatchItMovie)
public Button watchedButton;
#BindView(R.id.remove)
public Button removeButton;
public ViewHolder(View v) {
super(v);
ButterKnife.bind(this, v);
}
}
//parte per attivare/disattivare l'editText
private void actv(final boolean active)
{
fromDateEtxt.setEnabled(active);
if (active)
{
fromDateEtxt.requestFocus();
}
}
public static void setTipo(String tipo) {
MoviesAdapter.tipo = tipo;
}
public static String getTipo() {
return tipo;
}
}

For first, you can try adding similar logic to onPageScrolled
Fragment getFragment = getSupportFragmentManager().getFragments().get(position);
if (getFragment instanceof MoviesFragment) {
MoviesFragment thisFragment = (MoviesFragment) getFragment;
if ((position == 0 || position == 2) && positionOffset == 0.0 && positionOffsetPixels == 0)
thisFragment.onRefresh();
}

OK, #user47845 for (This is my list_item_movie.xml) you can try changed to this and tell us how are you doing.
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="350px">
<android.support.constraint.ConstraintLayout
android:id="#+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/card_background">
<ImageView
android:id="#+id/poster"
android:layout_width="120dp"
android:layout_height="139dp"
android:layout_marginEnd="10dp"
android:layout_marginLeft="2dp"
android:layout_marginRight="10dp"
android:layout_marginStart="2dp"
android:contentDescription="TODO"
android:scaleType="centerCrop"
android:src="#drawable/poster_placeholder"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/movie_title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:textSize="20dip"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/poster"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/movie_release_date"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textSize="20dip"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/poster"
app:layout_constraintTop_toBottomOf="#+id/movie_title" />
<Button
android:id="#+id/editNotify"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:onClick="pressEditNotifyButton"
android:text="Notify"
android:textColor="#android:color/holo_blue_dark"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="#+id/poster" />
<Button
android:id="#+id/iWatchItMovie"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:text="I watch it"
android:textColor="#android:color/holo_blue_dark"
android:textStyle="bold"
app:layout_constraintEnd_toStartOf="#+id/remove"
app:layout_constraintStart_toEndOf="#+id/movie_title"
app:layout_constraintBottom_toBottomOf="parent" />
<Button
android:id="#+id/remove"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="21dp"
android:layout_marginRight="21dp"
android:background="#android:color/transparent"
android:text="Remove"
android:textColor="#android:color/holo_blue_dark"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/iWatchItMovie" />
</android.support.constraint.ConstraintLayout>
</FrameLayout>

This is my list_item_movie.xml:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="350px">
<!--android:layout_height="?android:attr/listPreferredItemHeight">-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="2dp"
android:layout_marginRight="2dp"
android:layout_marginTop="4dp"
android:layout_marginBottom="4dp"
android:background="#drawable/card_background">
<ImageView
android:id="#+id/poster"
android:layout_width="185px"
android:layout_height="277px"
android:src="#drawable/poster_placeholder"
android:scaleType="centerCrop"
android:contentDescription="TODO" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center_vertical">
<TextView
android:id="#+id/movie_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textStyle="bold"
android:layout_gravity="left|center_vertical"
android:textSize="20dip"
android:layout_marginLeft="10dip"
/>
<TextView
android:id="#+id/movie_release_date"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="left|center_vertical"
android:textSize="20dip"
android:layout_marginLeft="10dip"
/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="bottom"
android:orientation="horizontal">
<Button
android:id="#+id/editNotify"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:onClick="pressEditNotifyButton"
android:text="Notify"
android:textColor="#android:color/holo_blue_dark"
android:textStyle="bold" />
<Button
android:id="#+id/iWatchItMovie"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:text="I watch it"
android:textColor="#android:color/holo_blue_dark"
android:textStyle="bold" />
<Button
android:id="#+id/remove"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:text="Remove"
android:textColor="#android:color/holo_blue_dark"
android:textStyle="bold" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</FrameLayout>
EDIT:
I have solved so:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="350px">
<!--android:layout_height="?android:attr/listPreferredItemHeight">-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="2dp"
android:layout_marginTop="4dp"
android:layout_marginRight="2dp"
android:layout_marginBottom="4dp"
android:orientation="horizontal"
android:background="#drawable/card_background">
<ImageView
android:id="#+id/poster"
android:layout_width="185px"
android:layout_height="277px"
android:contentDescription="TODO"
android:scaleType="centerCrop"
android:src="#drawable/poster_placeholder" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/movie_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left|center_vertical"
android:layout_marginLeft="10dip"
android:layout_weight="1"
android:textSize="20dip"
android:textStyle="bold" />
<TextView
android:id="#+id/movie_release_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left|center_vertical"
android:layout_marginLeft="10dip"
android:layout_weight="1"
android:textSize="20dip" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="bottom"
android:orientation="horizontal">
<Button
android:id="#+id/editNotify"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:onClick="pressEditNotifyButton"
android:text="Notify"
android:textColor="#android:color/holo_blue_dark"
android:textStyle="bold" />
<Button
android:id="#+id/iWatchItMovie"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:text="I watch it"
android:textColor="#android:color/holo_blue_dark"
android:textStyle="bold" />
<Button
android:id="#+id/remove"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:text="Remove"
android:textColor="#android:color/holo_blue_dark"
android:textStyle="bold" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</FrameLayout>

Implementing Swipe functionality on portion of screen while using bottom navigation?

I am developing my first Android application as part of a college project. I am relatively new to java. My application consists of a bottom navigation, which contains 4 separate pages. Within these pages I have a head section, containing a title, contact button and logout button.
Underneath the head section I wish to have a midsection which will in itself contain 3 swipe panels containing information. Essentially there should be 3 panels for each page, with there being 4 pages (So 4 sets of 3 swipe panels).
This is where I'm having difficulty.. I'm unsure of how to nest the fragments so that only that midsection will be swipe-able. Here is a screenshot of what I have so far:
Screenshot of app
Here is my Code for my MainActivity.java class:
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomNavigationView;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;
public class MainActivity extends AppCompatActivity {
private static final String SELECTED_ITEM = "arg_selected_item";
private BottomNavigationView mBottomNav;
private int mSelectedItem;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mBottomNav = (BottomNavigationView) findViewById(R.id.navigation);
mBottomNav.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
selectFragment(item);
return true;
}
});
MenuItem selectedItem;
if (savedInstanceState != null) {
mSelectedItem = savedInstanceState.getInt(SELECTED_ITEM, 0);
selectedItem = mBottomNav.getMenu().findItem(mSelectedItem);
} else {
selectedItem = mBottomNav.getMenu().getItem(0);
}
selectFragment(selectedItem);
}
#Override
protected void onSaveInstanceState(Bundle outState) {
outState.putInt(SELECTED_ITEM, mSelectedItem);
super.onSaveInstanceState(outState);
}
#Override
public void onBackPressed() {
MenuItem homeItem = mBottomNav.getMenu().getItem(0);
if (mSelectedItem != homeItem.getItemId()) {
// select home item
selectFragment(homeItem);
} else {
super.onBackPressed();
}
}
private void selectFragment(MenuItem item) {
Fragment frag = null;
// init corresponding fragment
switch (item.getItemId()) {
case R.id.menu_home:
frag = MenuFragment.newInstance(getString(R.string.text_home),
getString(R.string.test_home));
break;
case R.id.menu_notifications:
//Call to a function that does the stuff here
frag = MenuFragment.newInstance(getString(R.string.text_notifications),
getString(R.string.test_notifications));
break;
case R.id.menu_search:
frag = MenuFragment.newInstance(getString(R.string.text_search),
getString(R.string.test_search));
break;
case R.id.menu_followed:
frag = MenuFragment.newInstance(getString(R.string.text_follow),
getString(R.string.test_follow));
}
// update selected item
mSelectedItem = item.getItemId();
// uncheck the other items.
for (int i = 0; i< mBottomNav.getMenu().size(); i++) {
MenuItem menuItem = mBottomNav.getMenu().getItem(i);
menuItem.setChecked(menuItem.getItemId() == item.getItemId());
}
if (frag != null) {
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.add(R.id.container, frag, frag.getTag());
ft.commit();
}
}
}
Here is the acitivity_main.xml file:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:design="http://schemas.android.com/apk/res-auto"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.socialivemusic.socialivetestproject.MainActivity">
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#ff292929">
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="start"
android:layout_weight="0.06"
android:background="#ff000000"
android:textAlignment="center"
design:menu="#menu/bottom_nav_items" />
</LinearLayout>
And here is my MenuFragment.java class:
import android.os.Bundle;
import android.support.annotation.Nullable;
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.TextView;
import org.w3c.dom.Text;
public class MenuFragment extends Fragment {
private static final String ARG_TEXT = "arg_text";
private static final String ARG_TESTSTRING = "arg_testString";
private String mText;
private String mTest;
private View mContent;
private TextView mTextView;
private TextView mTestView;
private Button contactButton;
private Button logoutButton;
public static Fragment newInstance(String text, String testString) {
Fragment frag = new MenuFragment();
Bundle args = new Bundle();
args.putString(ARG_TEXT, text);
args.putString(ARG_TESTSTRING, testString);
frag.setArguments(args);
return frag;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_menu, container, false);
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
// retrieve text and color from bundle or savedInstanceState
if (savedInstanceState == null) {
Bundle args = getArguments();
mText = args.getString(ARG_TEXT);
mTest = args.getString(ARG_TESTSTRING);
} else {
mText = savedInstanceState.getString(ARG_TEXT);
mTest = savedInstanceState.getString(ARG_TESTSTRING);
}
// initialize views
mContent = view.findViewById(R.id.fragment_content);
mTextView = (TextView) view.findViewById(R.id.text);
mTestView = (TextView) view.findViewById(R.id.test);
contactButton = (Button) view.findViewById(R.id.contactButton);
logoutButton = (Button) view.findViewById(R.id.logoutbutton);
// set text and background color
mTextView.setText(mText);
mTestView.setText(mTest);
}
#Override
public void onSaveInstanceState(Bundle outState) {
outState.putString(ARG_TEXT, mText);
outState.putString(ARG_TESTSTRING, mTest);
super.onSaveInstanceState(outState);
}
}
Here is the fragments_menu.xml file:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/fragment_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.socialivemusic.socialivetestproject.MenuFragment">
<LinearLayout
android:layout_width="match_parent"
android:layout_marginLeft="17dp"
android:layout_marginRight="17dp"
android:layout_height="150dp"
android:layout_marginTop="15dp"
android:background="#ff434343"
android:weightSum="1">
<Button
android:text="CONTACT"
android:textColor="#ffffff"
android:layout_width="420dp"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:layout_height="90dp"
android:layout_gravity="center"
android:id="#+id/contactButton"
android:layout_weight="0.33"
android:background="#drawable/round_button"
android:textSize="20sp"/>
<TextView
android:id="#+id/text"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:layout_gravity="center"
android:textColor="#969696"
android:textSize="40sp"
android:textStyle="bold"
android:layout_weight="0.355"
/>
<Button
android:text="LOGOUT"
android:textColor="#ffffff"
android:layout_width="420dp"
android:layout_height="90dp"
android:layout_gravity="center"
android:id="#+id/logoutbutton"
android:layout_weight="0.33"
android:background="#drawable/logout_button"
android:textSize="20sp"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_marginLeft="17dp"
android:layout_marginRight="17dp"
android:layout_height="match_parent"
android:layout_marginBottom="15dp"
android:layout_marginTop="185dp"
android:background="#ff434343">
<TextView
android:id="#+id/test"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
</RelativeLayout>
The second LinearLayout in the above file is the one which should be the swipe-panel. The only other files on the project are xml files dealing with layout of the bottom navigation bar itself, so not relevant to the trouble I'm having.
Does anyone have any recommendations on how to approach this? A helping hand on how to start this part of the project would be amazing! Thanks in advance!

Android image slider text change

I have used this for android image swipe. It's working fine. But I need some customization in it. I need text and button bellow image and text should be change according to image swipe. And the text and button should not swipe.
What I did i put two text view and button on fragment_page.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:gravity="center_horizontal"
android:layout_width="fill_parent" android:layout_height="fill_parent"
android:background="#drawable/background"
android:weightSum="1">
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="wrap_content"
android:layout_height="217dp"
android:layout_weight="0.71">
</android.support.v4.view.ViewPager>
<TextView
style="#style/bigFont"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="#+id/textBold"
android:layout_marginTop="20dp"
android:textColor="#color/text_color"
android:layout_centerHorizontal="true"/>
<TextView
style="#style/smallFont"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Medium Text"
android:id="#+id/textsmall"
android:layout_marginTop="20dp"
android:layout_below="#+id/textBold"
android:textColor="#color/text_color"
android:layout_centerHorizontal="true"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="REGISTER NOW"
android:id="#+id/button2"
android:background="#drawable/button_design"
android:textColor="#color/text_color"
android:padding="#dimen/abc_action_bar_content_inset_material"
android:layout_below="#+id/textsmall"
android:layout_centerHorizontal="true"
android:layout_marginTop="60dp" />
</LinearLayout>
here is my class.
package com.example.rocku28.mdt;
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.view.ViewPager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
public class Slider extends FragmentActivity {
static final int NUM_ITEMS = 4;
ImageFragmentPagerAdapter imageFragmentPagerAdapter;
ViewPager viewPager;
TextView boldTxt,smallTxt;
Button regButton;
public static final String[] IMAGE_NAME = {"one", "two", "three", "four"};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_pager);
boldTxt = (TextView) findViewById(R.id.textBold);
smallTxt = (TextView) findViewById(R.id.textsmall);
imageFragmentPagerAdapter = new ImageFragmentPagerAdapter(getSupportFragmentManager());
viewPager = (ViewPager) findViewById(R.id.pager);
viewPager.setAdapter(imageFragmentPagerAdapter);
}
public static class ImageFragmentPagerAdapter extends FragmentPagerAdapter {
public ImageFragmentPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public int getCount() {
return NUM_ITEMS;
}
#Override
public Fragment getItem(int position) {
SwipeFragment fragment = new SwipeFragment();
return SwipeFragment.newInstance(position);
}
}
public static class SwipeFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View swipeView = inflater.inflate(R.layout.swipe_fragment, container, false);
ImageView imageView = (ImageView) swipeView.findViewById(R.id.imageView);
Bundle bundle = getArguments();
int position = bundle.getInt("position");
String imageFileName = IMAGE_NAME[position];
int imgResId = getResources().getIdentifier(imageFileName, "drawable", "com.example.rocku28.mdt");
imageView.setImageResource(imgResId);
setText(position);
return swipeView;
}
public void setText(int position){
// here I tried to change text on text view
switch (position){
case 0:
new Slider().boldTxt.setText(R.string.verify_licence);
new Slider().smallTxt.setText(R.string.take_back_picture);
break;
case 1:
// boldTxt.setText(R.string.verify_licence);
// smallTxt.setText(R.string.take_front_picture);
break;
case 2:
// boldTxt.setText(R.string.dashboard);
// smallTxt.setText(R.string.choose_option_to_call);
break;
case 3:
// boldTxt.setText(R.string.helpline);
// smallTxt.setText(R.string.call_call_center);
break;
}
}
static SwipeFragment newInstance(int position) {
SwipeFragment swipeFragment = new SwipeFragment();
Bundle bundle = new Bundle();
bundle.putInt("position", position);
swipeFragment.setArguments(bundle);
return swipeFragment;
}
}
}
check settext method. Here I tried to change text but problem is this context is in another class and it's static so I couldn't able to change it. How could I make it working?