Write a Program to Open a new Activity and set the Text of the Text View of the main activity by the which data is entered in the Edit Text of the new Activity opened.
Code:
Java Code of Main Activity:
package com.example.myexperiments;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
int secondActivity = 2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button b1 = (Button) findViewById(R.id.b1);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i1 = new Intent(Main3Activity.this, Main4Activity.class);
startActivityForResult(i1,secondActivity);
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
TextView t1 = (TextView) findViewById(R.id.t1);
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == secondActivity){
String message = data.getStringExtra("messageFromSecondActivity");
t1.setText(message);
}
}
}
Java Code of Second Activity:
package com.example.myexperiments;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class SecondActivity extends AppCompatActivity {
int secondActivity = 2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_listview);
final EditText e1 = (EditText) findViewById(R.id.e1);
Button b1 = (Button) findViewById(R.id.b1);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String message = e1.getText().toString();
Intent i1 = new Intent();
i1.putExtra("messageFromSecondActivity",message);
setResult(secondActivity,i1);
finish();
}
});
}
}
XML of Main Activity:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:id="@+id/l1"
android:orientation="vertical"
tools:context="MainActivity">
<TextView
android:id="@+id/t1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="The Text View"
android:textSize="25dp"
android:layout_gravity="center"
android:layout_marginTop="40dp"
/>
<Button
android:id="@+id/b1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Click to open new page"
android:textSize="20dp"
android:layout_gravity="center"
android:layout_marginTop="30dp"
/>
</LinearLayout>
XML of Second Activity:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:id="@+id/l2"
android:orientation="vertical"
tools:context=".Main4Activity">
<EditText
android:id="@+id/e1"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:hint="Enter the Text"
android:textSize="25dp"
android:layout_gravity="center"
android:layout_marginTop="40dp"
/>
<Button
android:id="@+id/b1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Click to Display the Entered Text"
android:textSize="20dp"
android:layout_gravity="center"
android:layout_marginTop="30dp"
/>
</LinearLayout>
Output:
When Starting the App After Clicking on Button After Clicking on Button
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