Develop Reference

Can't see top toolbar even after calling setSupportActionBar

I'm trying to add a top toolbar, with an options menu in it, in a fragment. Upon running it on the emulator the toolbar doesn't show up.
I have called setSupportActionBar(toolbar), still not sure what's wrong.
EDIT: I've already changed the app theme to NoActionBar.
ProfileFragment.java
public class ProfileFragment extends Fragment {
private static final String TAG = "ProfileFragment";
private static final int ACTIVITY_NUM = 4;
private Toolbar toolbar;
private BottomNavigationViewEx bottomNavigationView;
private Context mContext;
//firebase
private FirebaseAuth mAuth;
private FirebaseAuth.AuthStateListener mAuthListener;
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_profile, container, false);
toolbar = view.findViewById(R.id.profiletoolbar);
bottomNavigationView = view.findViewById(R.id.bottomnav);
mContext = getActivity();
Log.d(TAG, "onCreateView: started.");
setupBottomNavigationView();
setupToolBar();
return view;
}
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
setHasOptionsMenu(true);
super.onCreate(savedInstanceState);
}
//bottom nav setup
public void setupBottomNavigationView() {
Log.d(TAG, "setupBottomNavigationView: starting bottomnavsetup");
BottomNavigationViewHelper.setupBottomNavigationView(bottomNavigationView);
BottomNavigationViewHelper.enableBottomNav(mContext, bottomNavigationView);
Menu menu = bottomNavigationView.getMenu();
MenuItem menuItem = menu.getItem(ACTIVITY_NUM);
menuItem.setChecked(true);
}
//toolbar setup
private void setupToolBar() {
((AppCompatActivity)getActivity()).setSupportActionBar(toolbar);
}
#Override
public boolean onOptionsItemSelected(#NonNull MenuItem item) {
if (item.getItemId() == R.id.signout) {
Toast.makeText(mContext, "Sign out clicked", Toast.LENGTH_SHORT).show();
Log.d(TAG, "onOptionsItemSelected: attempting to sign out");
mAuth.signOut();
getActivity().finish();
}
return super.onOptionsItemSelected(item);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflater) {
menuInflater.inflate(R.menu.profile_menu, menu);
super.onCreateOptionsMenu(menu, menuInflater);
}
}
snippet_top_profile_bar.xml (This is the toolbar)
<merge xmlns:android="http://schemas.android.com/apk/res/android">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#drawable/white_grey_border_bottom">
<androidx.appcompat.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/profiletoolbar">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:text="#username"
android:id="#+id/username"/>
</RelativeLayout>
</androidx.appcompat.widget.Toolbar>
</com.google.android.material.appbar.AppBarLayout>
I have all the necessary imports.

This method will work in Activity. But, here you are trying to do it with Fragment. fragments are sub activities so they have limited scope to do things.
Another thing that may happen, You should change the Activity theme to noActionbar.
By using this, default toolbar will be hide your custom toolbar will be displayed.

OnClickListener() crash in Fragment

For some reason, when I click on the Toolbar(toolbar) and Float button(button) in my app, the OnClickListener () method crashes the snippet and app
Although the ImageButton(OnOff) handler runs and does not crash the fragment
Fragment
public class ZnonkiFragment extends Fragment {
private SharedPreferences settings;
private ImageButton OnOff;
private ViewPager viewPager;
private DrawerLayout drawerLayout;
private MainActivity.PagerAdapter pagerAdapter;
private FloatingActionButton button;
final Context context = getActivity();
private androidx.appcompat.widget.Toolbar toolbar;
private TabLayout tabLayout;
private String ZvonOne, ZvonTwo;
private List<Fragment> list = new ArrayList<>();
private String url;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_znonki, container,
toolbar = view.findViewById(R.id.toolbar);
toolbar.setNavigationIcon(getResources().getDrawable(R.drawable.menu));
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(context,"lel",Toast.LENGTH_LONG).show();
}
});
//...
addListenerOnButton(view);
return view;
}
public boolean checkString(String string) {
try {
Integer.parseInt(string);
} catch (Exception e) {
return false;
}
return true;
}
public void addListenerOnButton (final View viewOne){
OnOff = viewOne.findViewById(R.id.onOff);
button = viewOne.findViewById(R.id.floatingActionButton);
OnOff.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//...
});
button.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(final View view) {
//...
});
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//...
});
}
}
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="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".ZnonkiFragment">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
android:theme="?attr/actionBarTheme"
app:title="Звонки"
app:titleTextColor="#FFFFFF" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/floatingActionButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_margin="16dp"
android:clickable="true"
android:focusable="true"
app:backgroundTint="#color/colorAccent"
app:backgroundTintMode="src_atop"
app:srcCompat="#drawable/kek" />
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabLayout4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="?attr/actionBarSize"
android:background="#color/colorPrimary"
android:isScrollContainer="true"
app:tabIndicatorColor="#android:color/white"
app:tabIndicatorHeight="6dp"
app:tabMode="scrollable"
app:tabSelectedTextColor="#android:color/white"
app:tabTextColor="#E6E6FA">
</com.google.android.material.tabs.TabLayout>
<ImageButton
android:layout_margin="16dp"
android:id="#+id/onOff"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:background="#null"
app:srcCompat="#drawable/on" />
<androidx.viewpager.widget.ViewPager
android:id="#+id/rager"
android:layout_width="match_parent"
android:layout_height="557dp"
android:layout_marginTop="105dp"
/>
</FrameLayout>
Although this code worked in the main activiti
I don't know why but there are no errors in debug mode

What Kundan has suggested is correct but the fix is much easier.
You don't need this:
final Context context = getActivity();
If you need to gain access to the context in a Fragment you can call requireContext() if you need access to the Activity you can call requireActivity()
So your toast message can become:
Toast.makeText(requireContext(),"lel",Toast.LENGTH_LONG).show();

I think main cause of this issue is
final Context context = getActivity();
which is used in
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(context,"lel",Toast.LENGTH_LONG).show();
}
});
please note the getActivity() method returns the current activity with which this fragment is attached. and you are calling while the fragment object is creating before it is attached to activity.
you can change the above code to :
Context context;
and override the method as
#Override
public void onAttach(Context context) {
super.onAttach(context);
this.context = context;
}
Hope this answers your question.

The solution is simple
In your fragment class file, dont create custom function for calling click events rather you can use the android's defaul method by simply implementing them in your class file and then override it. Thats makes the code more simpler and reusable in future.
public class ZnonkiFragment extends Fragment implements View.OnClickListener, View.OnLongClickListener {
private SharedPreferences settings;
private ImageButton OnOff;
private ViewPager viewPager;
private DrawerLayout drawerLayout;
private FloatingActionButton button;
final Context context = getActivity();
private TabLayout tabLayout;
private String ZvonOne, ZvonTwo;
private List<Fragment> list = new ArrayList<>();
private String url;
private Toolbar mToolbar;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_znonki, container, false);
mToolbar = view.findViewById(R.id.toolbar);
mToolbar.setNavigationIcon(getResources().getDrawable(R.drawable.ic_launcher_background));
mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(context, "lel", Toast.LENGTH_LONG).show();
}
});
//...
OnOff = view.findViewById(R.id.onOff);
OnOff.setOnClickListener(this);
OnOff.setOnLongClickListener(this);
button = view.findViewById(R.id.floatingActionButton);
return view;
}
public boolean checkString(String string) {
try {
Integer.parseInt(string);
} catch (Exception e) {
return false;
}
return true;
}
#Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.onOff:
//call your onclick function here...
break;
case R.id.floatingActionButton:
//call your onclick function here...
break;
}
}
#Override
public boolean onLongClick(View view) {
switch (view.getId()) {
case R.id.floatingActionButton:
//call your long click function here...
break;
}
return false;
}
}
I have left comments on particular Loc where you can add your code and check it. And the toolbar was crashing due to improper importing of the libraries. If you havent used the androidx library into your gradle file then you can go with simple toolbar which is of "import android.support.v7.widget.Toolbar". This will surely stop your onclick crash on toolbar.
If there is any issue, just let me know. Thank you.

How to disable Touch while video is playing

I am developing a Toddler(kids) app in which I have shown the YouTube videos thumbnails in a recyclerview and whenever the user clicks on any of the listed thumbnails that video plays in full screen YouTube intent( and all the videos after that plays in order automatically). I am succeed in doing so. The problem is now I want to disable the touch screen while the video is playing. I thought of making transparent layout and to show this transparent layout as upper layer on YouTube Full screen video intent but i dont know how to attach this layout with Youtube video intent.
Every kind of help is appreciated.
below is my code:
main_activity.xml:
<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"
android:weightSum="2"
android:orientation="vertical"
tools:context="com.example.pc.fkidshell.Main4Activity">
<include layout="#layout/toolbar"
android:id="#+id/my_thirdtoolbar"/>
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/VideoList"
android:layout_below="#+id/my_thirdtoolbar"
android:paddingTop="20dp"
android:scrollbars="vertical">
</android.support.v7.widget.RecyclerView>
</RelativeLayout>
video_row.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/thumbnailView"
android:layout_gravity="center_horizontal"/>
</LinearLayout>
mainactivity.javaL
public class Main4Activity extends AppCompatActivity implements YouTubeThumbnailView.OnInitializedListener, YouTubeThumbnailLoader.OnThumbnailLoadedListener{
Toolbar third_toolbar;
YouTubeThumbnailView thumbnailView;
YouTubeThumbnailLoader thumbnailLoader;
RecyclerView VideoList;
RecyclerView.Adapter adapter;
List<Drawable> thumbnailViews;
List<String> VideoId;
String videoid;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main4);
third_toolbar = (Toolbar) findViewById(R.id.my_thirdtoolbar);
setSupportActionBar(third_toolbar);
getSupportActionBar().setTitle(R.string.sectitle);
getSupportActionBar().setIcon(R.drawable.tblogo);
thumbnailViews = new ArrayList<>();
VideoList = (RecyclerView) findViewById(R.id.VideoList);
RecyclerView.LayoutManager layoutManager=new LinearLayoutManager(this);
VideoList.setLayoutManager(layoutManager);
adapter=new VideoListAdapter();
VideoList.setAdapter(adapter);
VideoId = new ArrayList<>();
thumbnailView = new YouTubeThumbnailView(this);
thumbnailView.initialize("API key", this);
}
#Override
public void onInitializationSuccess(YouTubeThumbnailView youTubeThumbnailView, YouTubeThumbnailLoader youTubeThumbnailLoader) {
thumbnailLoader = youTubeThumbnailLoader;
youTubeThumbnailLoader.setOnThumbnailLoadedListener(Main4Activity.this);
thumbnailLoader.setPlaylist("PLXRActLQ03oY_6AQb-5EMuKFYQA_fDE40");
}
#Override
public void onInitializationFailure(YouTubeThumbnailView youTubeThumbnailView, YouTubeInitializationResult youTubeInitializationResult) {
}
public void add() {
adapter.notifyDataSetChanged();
if (thumbnailLoader.hasNext())
thumbnailLoader.next();
}
#Override
public void onThumbnailLoaded(YouTubeThumbnailView youTubeThumbnailView, String s) {
thumbnailViews.add(youTubeThumbnailView.getDrawable());
VideoId.add(s);
add();
}
#Override
public void onThumbnailError(YouTubeThumbnailView youTubeThumbnailView, YouTubeThumbnailLoader.ErrorReason errorReason) {
}
public class VideoListAdapter extends RecyclerView.Adapter<VideoListAdapter.MyView>{
public class MyView extends RecyclerView.ViewHolder{
ImageView imageView;
public MyView(View itemView) {
super(itemView);
imageView= (ImageView) itemView.findViewById(R.id.thumbnailView);
}
}
#Override
public VideoListAdapter.MyView onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.video_row, parent, false);
return new MyView(itemView);
}
#Override
public void onBindViewHolder(VideoListAdapter.MyView holder, final int position) {
holder.imageView.setImageDrawable(thumbnailViews.get(position));
holder.imageView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v)
{
videoid=VideoId.get(position);
//startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.youtube.com/watch?v="+videoid+"&list=PLXRActLQ03oY_6AQb-5EMuKFYQA_fDE40")));
Intent intent=new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.youtube.com/watch?v="+videoid+"&index="+position+"&list=PLXRActLQ03oY_6AQb-5EMuKFYQA_fDE40"));
intent.putExtra("force_fullscreen",true);
startActivity(intent);
// Intent intenwt=YouTubeIntents.createPlayVideoIntent(Main4Activity.this,VideoId.get(position));
// intent.putExtra("force_fullscreen",true);
//startActivity(intent);
}
});
}
#Override
public int getItemCount() {
return thumbnailViews.size();
}
}
}

Try with following this will help you
https://stackoverflow.com/a/28429348/7234534

As stated in this thread, this is impossible as you cannot override the home button even if it is soft or hard button. However, you can use third party apps like Untouch which is a very popular one, and can be found in the play store. (Search for Untouch or touch block and it should come up.) You may also check on this blog that discussed some workaround for your issue. Hope this helps!

Passing data between two tab fragments in a SlidingTabslayout

I have an application which has one main activity which in turn hosts two tabs. Each tab is a fragment. The first tab has an editText and a Button and on button press the text entered by the user must be displayed on the second tab fragment which hosts only one textView. I am using a listener to pass the data but for some reason the app crashes when i press the submit button. Any help would be appreciated. Here is my code:
MainActivity.java
public class MainActivity extends AppCompatActivity implements OnEditTextListener {
Toolbar toolbar;
ViewPager pager;
ViewPagerAdapter adapter;
SlidingTabLayout tabs;
CharSequence Titles[] = {"Home", "Events"};
int Numboftabs = 2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Creating The Toolbar and setting it as the Toolbar for the activity
toolbar = (Toolbar) findViewById(R.id.tool_bar);
setSupportActionBar(toolbar);
// Creating The ViewPagerAdapter and Passing Fragment Manager, Titles fot the Tabs and Number Of Tabs.
adapter = new ViewPagerAdapter(getSupportFragmentManager(), Titles, Numboftabs);
// Assigning ViewPager View and setting the adapter
pager = (ViewPager) findViewById(R.id.pager);
pager.setAdapter(adapter);
// Assiging the Sliding Tab Layout View
tabs = (SlidingTabLayout) findViewById(R.id.tabs);
tabs.setDistributeEvenly(true); // To make the Tabs Fixed set this true, This makes the tabs Space Evenly in Available width
// Setting Custom Color for the Scroll bar indicator of the Tab View
tabs.setCustomTabColorizer(new SlidingTabLayout.TabColorizer() {
#Override
public int getIndicatorColor(int position) {
return getResources().getColor(R.color.ColorPrimary);
}
});
// Setting the ViewPager For the SlidingTabsLayout
tabs.setViewPager(pager);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
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);
}
#Override
public void OnEditText(String data) {
Tab2 newFragment = (Tab2)adapter.getItem(1);
newFragment.updateDisplay(data);
}
}
Tab1.java
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.text.Editable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
public class Tab1 extends Fragment
{
public interface OnEditTextListener {
public void OnEditText(String data);
}
OnEditTextListener editTextListener = null;
EditText edtText;
Button btnSubmit;
String val;
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
editTextListener = (OnEditTextListener) activity;
} catch (ClassCastException ex) {
ex.printStackTrace();
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.first_fragment, container, false);
return v;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
edtText = (EditText)getActivity().findViewById(R.id.edtText);
btnSubmit = (Button)getActivity().findViewById(R.id.btnSubmit);
btnSubmit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
val = edtText.getText().toString();
editTextListener.OnEditText(val);
}
});
}
}
Tab2.java
public class Tab2 extends Fragment {
public static final String TAG = "DATA";
public static final String SAVE = "NBHJB";
String newdata = "";
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
if (savedInstanceState != null)
savedInstanceState.getInt(SAVE);
return inflater.inflate(R.layout.second_fragment, container, false);
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
if (savedInstanceState != null) {
savedInstanceState.getString(SAVE);
}
}
public void updateDisplay(String data) {
newdata = data;
TextView randomData = (TextView) getActivity().findViewById(R.id.txtView1);
randomData.setText(newdata);
}
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putString(SAVE, newdata);
}
MainActivity.xml
<LinearLayout 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"
android:orientation="vertical"
tools:context=".MainActivity">
<include
android:id="#+id/tool_bar"
layout="#layout/tool_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<View
android:layout_height="2dip"
android:background="#color/tabsScrollColor"
android:layout_width="wrap_content" />
<com.example.regi.tabsprove.SlidingTabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/prove"
android:elevation="2dp" />
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"></android.support.v4.view.ViewPager>
</LinearLayout>
second_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/txtView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:padding="10dp"
android:text="Default Text"
android:textSize="20dp" />
</LinearLayout>
This is the error that I get
java.lang.NullPointerException
at com.example.regi.tabsprove.Tab2.updateDisplay(Tab2.java:36)
at com.example.regi.tabsprove.MainActivity.OnEditText(MainActivity.java:79)
at com.example.regi.tabsprove.Tab1$1.onClick(Tab1.java:51)
at android.view.View.performClick(View.java:4198)
at android.view.View$PerformClick.run(View.java:17158)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4918)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1004)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:771)
at dalvik.system.NativeStart.main(Native Method)

I'm pretty sure that the line Tab2 newFragment = (Tab2)adapter.getItem(1); is creating a new instance of Tab2 instead of giving you the Fragment that you need. You should find a better way to get the instance of the Fragment that has been built to you by the ViewPager; I'm sure that this post can help you.

I found your design a bit complicated than regular data passing. From the logs, the issue is the program unable to find txtView1 in second fragment. It is always a good practice to use bundle for passing data.
I hope the following changes should fix your problem, but that's not the best way to do it.
Declare your TextView next to newData
public static final String TAG = "DATA";
public static final String SAVE = "NBHJB";
String newdata = "";
TextView randomData;
Initialize it in onCreateView()
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
if (savedInstanceState != null)
savedInstanceState.getInt(SAVE);
View rootView = inflater.inflate(R.layout.second_fragment, container, false);
randomData = (TextView) rootView.findViewById(R.id.txtView1);
return rootView;
}
Change the updateDisplay function
public void updateDisplay(String data) {
newdata = data;
randomData.setText(newdata);
}
Make sure you dont have any other items with same id as txtView1.

Here is the solution to everyone who might be facing the same issue:
public static String makeFragmentName(int containerViewId, long id) {
return "android:switcher:" + containerViewId + ":" + id;
}
public #Nullable
Fragment getFragmentForPosition(int position)
{
String tag = makeFragmentName(pager.getId(), position);
Fragment fragment = getSupportFragmentManager().findFragmentByTag(tag);
return fragment;
}
#Override
public void OnEditText(String data) {
Tab2 tab2 = (Tab2)getFragmentForPosition(1);
tab2.updateDisplay(data);
}
This code goes to MainActivity.java

Trying to make ImageView full size in Dialog doesn't work

I'm using Fragments, I would like to get full size image mImageReport when I tap on ImageView on my fragment. My second layout is test.xml (for Dialog).
I'm getting image from URL using Picasso
But the problem is my image doesn't appear on the new dialog (mImageReport). I don't know how to link the imageView from test.xml with the image I want in full screen in my fragment...
Here is my code.
Reports.java :
public class Reports extends Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (container == null) {
return null;
}
View view = inflater.inflate(R.layout.reports, container, false);
ButterKnife.inject(this, view);
final Dialog nagDialog = new Dialog(getActivity(),android.R.style.Theme_Translucent_NoTitleBar_Fullscreen);
nagDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
nagDialog.setCancelable(false);
nagDialog.setContentView(R.layout.test);
Button btnClose = (Button)nagDialog.findViewById(R.id.btnIvClose);
ImageView ivPreview = (ImageView)nagDialog.findViewById(R.id.iv_preview_image);
// Loading image from url in ImageView ... HERE IS THE PROBLEM
Picasso.with(mImageReport.getContext()).load(mCurrentReportString.getUrlImages()).into(ivPreview);
mImageReport.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
nagDialog.show();
}
});
btnClose.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
nagDialog.dismiss();
}
});
return view;
}
test.xml :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView android:layout_width="match_parent"
android:layout_height="match_parent" android:id="#+id/iv_preview_image" />
<Button android:layout_width="match_parent"
android:layout_height="match_parent" android:background="#drawable/fileclose"
android:id="#+id/btnIvClose" android:layout_alignParentRight="true"
android:layout_alignParentTop="true" />
</RelativeLayout>

Call this method from fragment onCreateView or according to your requirements...
private void showImage() {
final Dialog nagDialog = new Dialog(getActivity(),android.R.style.Theme_Translucent_NoTitleBar_Fullscreen);
nagDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
nagDialog.setCancelable(false);
nagDialog.setContentView(R.layout.test);
Button btnClose = (Button)nagDialog.findViewById(R.id.btnIvClose);
ImageView ivPreview = (ImageView)nagDialog.findViewById(R.id.iv_preview_image);
// Loading image from url in ImageView ... HERE IS THE PROBLEM
Picasso.with(getActivity()).load(mCurrentReportString.getUrlImages()).into(ivPreview);
btnClose.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
nagDialog.dismiss();
}
});
nagDialog.show();
}