Develop Reference

Change Fragment's TextViews's text from Activity

I want to change an textView's text via an Activity, but when I change by this code:
public class MainActivity extends AppCompatActivity {
private TextView txtSave;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txtSave = (TextView)findViewById(R.id.txt_save);;
}
public void onClick(View v) {
TextView txtSave;
txtSave = (TextView)findViewById(R.id.txt_save);
txtSave.setText("something");
}
}
and I got this error:
05-14 13:47:46.835 21949-21949/stv.wordspower E/AndroidRuntime: FATAL EXCEPTION: main
Process: stv.wordspower, PID: 21949
java.lang.IllegalStateException: Could not execute method for android:onClick
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293)
at android.view.View.performClick(View.java:4756)
at android.view.View$PerformClick.run(View.java:19749)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
Can somebody add me help how can I change dynamically?
Fragment code:
public class ProgressFragment extends Fragment {
private View rootView;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.fragment_progress, container, false);
return rootView;
}
public static ProgressFragment newInstance() {
Bundle args = new Bundle();
ProgressFragment fragment = new ProgressFragment();
fragment.setArguments(args);
return fragment;
}
}
The textView is on the ProgressFragment. The ProgressFragment is on the MainActivity's FrameLayout.
I just want to modify the TextView's values but I can't. I have tried these solutions, but one did not work.
other informations:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="stv.wordspower.MainActivity">
<TextView
android:text="#string/txtView_welcome"
android:textSize="30sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:id="#+id/textView"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:textAlignment="center" />
<Button
android:text="#string/btn_exit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/btn_exit"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
<Button
android:id="#+id/btn_settings"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/btn_settings"
android:layout_above="#+id/btn_contact"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
android:id="#+id/btn_contact"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/btn_contact"
android:layout_above="#+id/btn_exit"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
android:id="#+id/btn_progress"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentStart="true"
android:layout_below="#+id/textView"
android:text="#string/btn_progress" />
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="#+id/btn_progress"
android:layout_above="#+id/btn_settings"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:id="#+id/mainActivityFragmentLayout">
</FrameLayout>
<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"
tools:context="stv.wordspower.ProgressFragment"
android:orientation="vertical">
<!-- TODO: Update blank fragment layout -->
<TextView
android:id="#+id/txt_progresses"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/txt_progresses"
android:textAlignment="center"
android:textColor="#android:color/background_dark"
android:textSize="30dp"
android:textStyle="bold" />
<TextView
android:id="#+id/txt_save"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/txt_empty"
android:textAlignment="center"
android:textSize="30dp"
android:onClick="onClick"
android:clickable="true"/>

In onClick method, you can get fragment as following:
public void onClick(View v) {
yourFrag fragment = (yourFrag)getSupportFragmentManager().findFragmentById(R.id.fragment_id);
}
and in fragment, create a method to update the textView, so that we can call it using fragment object as following:
public void update(String s){
textView.setText(s);
}
Note: This textView should be defined in your fragment.
and call this from main activity as following:
public void onClick(View v) {
yourFrag fragment = (yourFrag)getSupportFragmentManager().findFragmentById(R.id.fragment_id);
fragment.update("foo");
}
And yes! if you are not using support library, just replace getSupportFragmentManager() by getFragmentManager().

ScrollView inside fragment not scrolling

In my Activity I have a FrameLayout, that suppose to use as container for fragments.
In my fragment I got a ScrollView that doesn't respond. ScrollView contains TextView set android:layout_height="wrap_content", with text from my java code that clearly longer than the size of the ScrollView.
My 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="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:layout_width="#dimen/bookview.imageWidth"
android:layout_height="250dp"
android:id="#+id/bookView.image"/>
<TextView
android:textSize="#dimen/custom_book_text"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_toEndOf="#id/bookView.image"
android:id="#+id/bookView.name"/>
<TextView
android:textSize="#dimen/custom_book_text"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_toEndOf="#id/bookView.image"
android:layout_below="#id/bookView.name"
android:id="#+id/bookView.author"/>
<TextView
android:textSize="#dimen/custom_book_text"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_toEndOf="#id/bookView.image"
android:layout_below="#id/bookView.author"
android:id="#+id/bookView.pages"/>
<TextView
android:textSize="#dimen/custom_book_text"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_toEndOf="#id/bookView.image"
android:layout_below="#id/bookView.pages"
android:id="#+id/bookView.category"/>
<TextView
android:textSize="#dimen/custom_book_text"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_toEndOf="#id/bookView.image"
android:layout_below="#id/bookView.category"
android:id="#+id/bookView.publishingDate"/>
</RelativeLayout>
<ScrollView
android:layout_height="200dp"
android:layout_width="match_parent"
android:layout_gravity="end">
<TextView
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:textSize="#dimen/custom_book_text"
android:id="#+id/bookView.description"/>
</ScrollView>
</LinearLayout>
the xml of the activity:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/use.drawer">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="#dimen/user_custom_book_height"
android:id="#+id/user.customBookContainer"/>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:id="#+id/user.container"/>
</LinearLayout>
<include
layout="#layout/navigation_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"/>
</android.support.v4.widget.DrawerLayout>
i use FrameLayout because i want to change the fragment in that area,in runtime.better idea? i like to hear.
i have tried to decrese the heigth of the ScrollView.
my fragment java code:
public class BookView extends Fragment {
private Bitmap bitmap;
private String name;
public static BookView newInstance(String book,Bitmap bitmap) {
Bundle args = new Bundle();
BookView fragment = new BookView();
fragment.bitmap = bitmap;
fragment.name = book;
fragment.setArguments(args);
return fragment;
}
public BookView() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.fragment_book_view, container, true);
Backend backend = BackendFactory.getInstance();
try {
Book b = backend.readBook(name);
TextView textView = (TextView)v.findViewById(R.id.bookView_name);
textView.setText(b.getBookName());
textView = (TextView)v.findViewById(R.id.bookView_author);
textView.setText(b.getAuthor());
textView = (TextView)v.findViewById(R.id.bookView_category);
textView.setText(b.getCategory().name());
textView = (TextView)v.findViewById(R.id.bookView_description);
textView.setText(b.getDescription());
textView = (TextView)v.findViewById(R.id.bookView_pages);
textView.setText(Integer.toString(b.getPages()));
textView = (TextView)v.findViewById(R.id.bookView_publishingDate);
textView.setText(b.getPublishingDate());
final ImageView imageView = (ImageView)v.findViewById(R.id.bookView_image);
if(bitmap != null){
imageView.setImageBitmap(bitmap);
} else{
ImageLoader imageLoader = new ImageLoader();
imageLoader.setListener(new ImageLoader.ImageTaskListener() {
#Override
public void onActionEnd() {}
#Override
public void onImageDownload(Bitmap bitmap) {
imageView.setImageBitmap(bitmap);
}
});
imageLoader.execute(b.getImage());
}
}
catch (Exception e) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage(e.getMessage());
builder.create().show();
}
return inflater.inflate(R.layout.fragment_book_view, container, false);
}
}
imageLoader is a class i wrote,it extened AsyncTask for download image from a url and update the UI when it ready.

I think other parts (TextViews and ImageViews) of this fragment full all area of screen and ScrollView render out of screen.
I suggest you put all layout inside ScrollView.
like this:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="end">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/bookView.image"
android:layout_width="#dimen/bookview.imageWidth"
android:layout_height="250dp"/>
<TextView
android:id="#+id/bookView.name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toEndOf="#id/bookView.image"
android:textSize="#dimen/custom_book_text"/>
<TextView
android:id="#+id/bookView.author"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/bookView.name"
android:layout_toEndOf="#id/bookView.image"
android:textSize="#dimen/custom_book_text"/>
<TextView
android:id="#+id/bookView.pages"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/bookView.author"
android:layout_toEndOf="#id/bookView.image"
android:textSize="#dimen/custom_book_text"/>
<TextView
android:id="#+id/bookView.category"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/bookView.pages"
android:layout_toEndOf="#id/bookView.image"
android:textSize="#dimen/custom_book_text"/>
<TextView
android:id="#+id/bookView.publishingDate"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/bookView.category"
android:layout_toEndOf="#id/bookView.image"
android:textSize="#dimen/custom_book_text"/>
</RelativeLayout>
<TextView
android:id="#+id/bookView.description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="#dimen/custom_book_text"/>
</LinearLayout>

I assume you are able to see the fragment's view.
If so a few things to try:
Set the scroll view to fillViewPort="true"
and then set the text view to match parent since this is the only view in the scroll view. As a note you should really avoid using hard coded widths & heights (even dp heights).
Instead of returning
return inflater.inflate(R.layout.fragment_book_view, container, false);
just return the original view: v
Nother' bit of readability: instead of reassigning textview each time.
do:
((TextView)v.findViewById(R.id.blabla)).setText("BLA");
Edit:
I have tested this & it works.
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2"
android:fillViewport="true">
<TextView
android:id="#+id/faq_output_answer"
android:layout_width="match_parent"
android:layout_margin="10dp"
android:layout_height="match_parent" />
</ScrollView>

Try putting an empty view as the last item in your scrollview.
<View
android:layout_width = "match_parent"
android:layout_height = "50dp" />
This worked for me.

Change a particuar view in Fragment

I am new to android developing and I am currently stumped at this situation.
Is there a way to change a particular child view of a fragment?
For example, I have a TextView and Button in a Fragment. Now after inflating this fragment and committing it, I would like to only change the text of the TextView based on the user input.
EDIT: The same layout is used to create multiple fragments. I would like to just change the TextView of a particular Fragment.
MainActivity Code:
public class MainActivity extends Activity {
Button bt;
EditText et;
LinearLayout ly;
String m;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bt=(Button) findViewById(R.id.badd);
ly=(LinearLayout) findViewById(R.id.lay_ver);
et=(EditText) findViewById(R.id.etadd);
bt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// multiple fragments are created
MyFragment f=new MyFragment();
FragmentManager fm=getFragmentManager();
FragmentTransaction t=fm.beginTransaction();
t.add(R.id.sv1, f, "hi");
t.commit();
et.setText("");
}
});
//would like to change the text of the textview of the fragment
}
#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;
}
}
Fragment Code:
public class MyFragment extends Fragment{
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View v=inflater.inflate(R.layout.frag_lay, null);
return v;
}
}
activity_main XML :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/lay_ver"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<LinearLayout
android:id="#+id/lay_hor"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<EditText
android:id="#+id/etadd"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="80"
android:hint="Enter Subject"
android:paddingTop="20dp" />
<Button
android:id="#+id/badd"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="20"
android:text="Add" />
</LinearLayout>
<ScrollView
android:id="#+id/sv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/sv1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
Fragment XML:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layfrag"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0.53"
android:text="HiHow"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0.20"
android:text="Hello"
android:textAppearance="?android:attr/textAppearanceLarge" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="#+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
<Button
android:id="#+id/button2"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>

You can add a list of Fragments in your activity and each fragment to the list when you create them. Then you can get the fragment you want to change and do as cdblades said :
View parent = fragment.getView();
View childTextView = (TextView)parent.findViewById(R.id.myChildTextView);
But why are you adding the fragments in the same container?

The base View class has the findById() method that you can use to get a reference to child views like so:
View parent = fragment.getView();
View childTextView = (TextView)parent.findViewById(R.id.myChildTextView);

Fragment Intermediate(III): Creating a activity that alternate between fragments onclick of respective button

Aim:
Create a activity that have two buttons, button 1 and button 2. When click, the fragment will alternate between the two fragments.
Background:
Fragmentone will take the edittext from the main activity and settext on the textview on the fragment.
Fragmenttwo will take display text to the tablelayout. (My ultimate goal is to use the input from the main activty and display it to one of the textview of the table, but it is not working, kindly advise on that)##issue 1
Problems:
The button1 that is supposed to display fragmentone is not working. After keying in the input into the edittext on the mainactivity, when i click the button, the fragmenttwo persist. FragmentOne did not come out. Place an toast in fragmentone and the toast display my input.
Special Thanks to:
Would like to extend a special thanks to helpful people in this community for guiding me this far. And will like to extend my thanks to Raghunandan who guide me through fragment advance I, II. Thanks you very much for assisting me through my learning journey. Hope my questions and raghunandan advice would help reduce the learning curve for those embraking on this journey.
Fragment Intermediate (I)
Fragment Intermediate(I):Getting input from edittext, set text in textview of a fragment
Fragment Intermediate (II)
Fragment Intermediate (II):Dynmically adding row in a fragment, Android
MainActivity.java
import android.os.Bundle;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.view.Menu;
import android.view.View;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void selectFrag(View view) {
Fragment fr;
if(view == findViewById(R.id.button2)) {
fr = new FragmentTwo();
}
else {
fr = new FragmentOne();
}
FragmentManager fm = getFragmentManager();
FragmentTransaction fragmentTransaction = fm.beginTransaction();
fragmentTransaction.replace(R.id.fragment_place, fr);
fragmentTransaction.commit();
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TableLayout
android:id="#+id/TableLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:stretchColumns="1" >
<TableRow
android:id="#+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/dis_input"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Input" />
<EditText
android:id="#+id/input"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10" />
</TableRow>
<TableRow
android:id="#+id/tableRow9"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="#+id/button2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="selectFrag"
android:text="Button2" />
<Button
android:id="#+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="selectFrag"
android:text="Calculate" />
</TableRow>
</TableLayout>
</FrameLayout>
<fragment
android:name="com.example.sample.FragmentTwo"
android:id="#+id/fragment_place"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
FragmentOne.java
public class FragmentOne extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.fragment_one, container, false);
TextView warcraft= (TextView) view.findViewById(R.id.moargold);
EditText moargold = (EditText) getActivity().findViewById(R.id.input);
Double vespenegas = Double.parseDouble(moargold.getText().toString());
warcraft.setText(new Double(vespenegas).toString());
Toast toast = Toast.makeText(getActivity(),new Double(vespenegas).toString() , Toast.LENGTH_SHORT);
toast.show();
return view;
}
}
fragment_one.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TableLayout
android:id="#+id/TableLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:stretchColumns="1" >
<TableRow
android:id="#+id/tableRow4"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/dis_moargold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Gold Count:" />
<TextView
android:id="#+id/moargold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</TableRow>
</TableLayout>
</LinearLayout>
FragmentTwo.java
public class FragmentTwo extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.fragment_two, container, false);
EditText input = (EditText) getActivity().findViewById(R.id.input);
TableLayout tl=(TableLayout) view.findViewById(R.id.mainLayout);
TableRow tr = new TableRow(getActivity());
tr.setLayoutParams(new LayoutParams( LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
TextView textview1 = new TextView(getActivity());
textview1.setText("happy");
tr.addView(textview1);
TextView textview2 = new TextView(getActivity());
textview2.setText("unhappy");
//###############To insert text from editview to table
// Double buygas = Double.parseDouble(input.getText().toString());
// textview2.setText(new Double(buygas).toString());
tr.addView(textview2);
tl.addView(tr, new TableLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
return view;
}
}
fragment_two.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="vertical"
android:background="#ffff00">
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/mainLayout">
<TableRow
android:id="#+id/infoRow"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:text="First"
android:id="#+id/column1"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</TextView>
<TextView
android:text="Second"
android:id="#+id/column2"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</TextView>
</TableRow>
</TableLayout>
</LinearLayout>

Just have the FrameLayout and EditText in activity_main.xml. FrameLayout is a container (ViewGroup) to which you add or replace fragments. Your TableLayout can be in fragment layout.
You are adding/replacing fragment programatically so what is the need to have the same in xml.
Have this in activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<EditText
android:id="#+id/input"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:ems="10" >
<requestFocus />
</EditText>
<FrameLayout
android:id="#+id/container" // id is container
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/button1"
android:layout_below="#+id/input"
>
</FrameLayout>
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignRight="#+id/input"
android:onClick="selectFrag"
android:text="Button1" />
<Button
android:id="#+id/button2"
android:onClick="selectFrag"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/input"
android:layout_alignParentBottom="true"
android:text="Button2" />
</RelativeLayout>
Then in MainActivity
public class MainActivity extends Activity {
Fragment fr;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void selectFrag(View view) {
if(view == findViewById(R.id.button2)) {
fr = new FragmentTwo();
}
else {
fr = new FragmentOne();
}
FragmentManager fm = getFragmentManager();
FragmentTransaction fragmentTransaction = fm.beginTransaction();
fragmentTransaction.replace(R.id.container, fr);
fragmentTransaction.commit();
}
}
FragmentOne
public class FragmentOne extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.frag1, container, false);
TextView warcraft= (TextView) view.findViewById(R.id.moargold);
EditText moargold = (EditText) getActivity().findViewById(R.id.input);
Double vespenegas = Double.parseDouble(moargold.getText().toString());
warcraft.setText(String.valueOf(vespenegas));
Toast toast = Toast.makeText(getActivity(),String.valueOf(vespenegas) , Toast.LENGTH_SHORT);
toast.show();
return view;
}
}
frag1.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TableLayout
android:id="#+id/TableLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:stretchColumns="1" >
<TableRow
android:id="#+id/tableRow4"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/dis_moargold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Gold Count:" />
<TextView
android:id="#+id/moargold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</TableRow>
</TableLayout>
</LinearLayout>
FragmentTwo
public class FragmentTwo extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.frag2, container, false);
EditText input = (EditText) getActivity().findViewById(R.id.input);
TableLayout tl=(TableLayout) view.findViewById(R.id.TableLayout01);
TableRow tr = new TableRow(getActivity());
tr.setLayoutParams(new LayoutParams( LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
TextView textview1 = new TextView(getActivity());
textview1.setText("happy");
tr.addView(textview1);
TextView textview2 = new TextView(getActivity());
textview2.setText("unhappy");
//###############To insert text from editview to table
// Double buygas = Double.parseDouble(input.getText().toString());
// textview2.setText(new Double(buygas).toString());
tr.addView(textview2);
tl.addView(tr, new TableLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
return view;
}
}
frag2.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TableLayout
android:id="#+id/TableLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:stretchColumns="1" >
<TableRow
android:id="#+id/tableRow4"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/dis_moargold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Gold Count:" />
<TextView
android:id="#+id/moargold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
</TableRow>
</TableLayout>
</LinearLayout>
Snap

While you add your Fragments dynamically, you keep your FragmentTwo inside your layout. Try to remove this in your layout:
<fragment
android:name="com.example.sample.FragmentTwo"
android:id="#+id/fragment_place"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
Also, in your code, you add dynamically a Fragment and with replace method, you set the container as id fragment_place:
fragmentTransaction.replace(R.id.fragment_place, fr);
However, this id is using by your fragment (FragmentTwo, the first piece of code above) and you cannot replace a fragment which is not added dynamically. You need to host your fragment inside a FrameLayout but yours has no id, try to add this:
<FrameLayout
android:id="#+id/fragment_place" /// this line to create and id
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
Then, you will be able to host, add and replace your fragments into your framelayout as you want.

Implementing listeners for Views from different layout

I have a ViewPager for the user to swipe between two layouts. My Activity's layout is the one containing the viewPager and I have two additional xml the ones that describe the layout of the screens that are to be swiped. My question is how can I implement the listeners of the buttons of these two layouts in my activity, the one containing the the viewPager. I'll also post the code I've written so far:
main:
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/fonto1" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:src="#drawable/grammi" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginEnd="17dp"
android:orientation="horizontal" >
<ImageView
android:id="#+id/aristerovelos2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/aristerovelos3"
android:layout_marginTop="21dp" />
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center" >
</android.support.v4.view.ViewPager>
</LinearLayout>
<ImageView
android:id="#+id/deksivelos1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:src="#drawable/deksivelos3" />
</RelativeLayout>
first layout to be swiped in the viewPager
<?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="60dp"
android:gravity="center_horizontal" >
<ImageView
android:id="#+id/galika"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:src="#drawable/gallika" />
<ImageView
android:id="#+id/germanika"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:src="#drawable/germanika" />
<ImageView
android:id="#+id/ellinika"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:src="#drawable/ellinika" />
<ImageView
android:id="#+id/agglika"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:src="#drawable/agglika" />
The second is something like that, won't need posting it.
This is how I've tried setting my listeners but it won't work.
final LayoutInflater factory = getLayoutInflater();
final View panel = factory.inflate(R.layout.first_panel, null);
iv = (ImageView) panel.findViewById(R.id.el);
and then I set its listener which is trivial though it won't work properly

Ok I'm really sorry, I was really absent-minded I re-inflated another layout, not the one that was on the ViewPager that's why i was getting the button events I will post my way of making it work, just in case
#Override
public Object instantiateItem(ViewGroup container, int position) {
LayoutInflater inflater = (LayoutInflater) container.getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
int resId = 0;
switch (position) {
case 0:
resId = R.layout.first_panel;
break;
case 1:
resId = R.layout.second_panel;
break;
}
View view = inflater.inflate(resId, null);
((ViewPager) container).addView(view, 0);
if(resId==R.layout.first_panel)
ibellinika = (ImageView) view.findViewById(R.id.ellinika);
ibellinika.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
progressBar = new ProgressDialog(v.getContext());
progressBar.setCancelable(false);
progressBar.setMessage("Transfering Data ...");
}
});
return view;
}