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@ankitchauhan20
Created June 15, 2022 13:01
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Pass Data between fragment to activity
<?xml version="1.0" encoding="utf-8"?>
<layout
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"
>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".GetFragmentDataActivity">
<FrameLayout
android:id="@+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="400dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toTopOf="@id/activity"
/>
<androidx.appcompat.widget.AppCompatTextView
android:id="@+id/activity"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Activity"
android:textSize="20dp"
android:textStyle="bold"
android:layout_marginTop="50dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.021"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.647" />
<androidx.appcompat.widget.AppCompatTextView
android:id="@+id/get_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="textview"
android:textSize="18sp"
app:layout_constraintTop_toBottomOf="@id/activity"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
package com.example.oopstutorial;
import android.app.Activity;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
public class DataFragment extends Fragment {
EditText editText;
Button button;
public interface onSomeEventListener {
void someEvent(String s);
}
onSomeEventListener someEventListener;
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
someEventListener = (onSomeEventListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString() + " must implement onSomeEventListener");
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_data, null);
button = v.findViewById(R.id.sendBtn);
editText = v.findViewById(R.id.edit_text);
button.setOnClickListener(v1 -> {
String data = editText.getText().toString();
someEventListener.someEvent(data);
});
return v;
}
}
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:background="#DFDFDF"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".DataFragment">
<androidx.appcompat.widget.AppCompatTextView
android:id="@+id/fragment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Fragment"
android:layout_margin="10dp"
android:textStyle="bold"
android:textSize="20dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
/>
<androidx.appcompat.widget.AppCompatEditText
android:id="@+id/edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Text"
android:textSize="20sp"
android:layout_gravity="center"
android:layout_marginHorizontal="20dp"
android:paddingStart="5dp"
app:layout_constraintTop_toBottomOf="@id/fragment"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
android:layout_marginTop="50dp"
/>
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/sendBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Send Data"
android:layout_marginTop="10dp"
android:gravity="center"
app:layout_constraintTop_toBottomOf="@id/edit_text"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
package com.example.oopstutorial;
import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.databinding.DataBindingUtil;
import androidx.fragment.app.FragmentManager;
import com.example.oopstutorial.databinding.ActivityGetFragmentDataBinding;
public class GetFragmentDataActivity extends AppCompatActivity implements DataFragment.onSomeEventListener {
ActivityGetFragmentDataBinding binding;
DataFragment dataFragment = new DataFragment();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding = DataBindingUtil.setContentView(this, R.layout.activity_get_fragment_data);
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frameLayout, dataFragment)
.commit();
}
@Override
public void someEvent(String s) {
binding.getText.setText(s);
}
}
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