Text Box Code || Basic || Android Studio |Android Application Development

Code : 

MainActivity

LOCATION: java/MainActivity.java

import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnKeyListener;
import android.widget.EditText;
import android.widget.Toast;

public class MyAndroidAppActivity extends Activity {

EditText edittext;
Button button;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

addKeyListener();
}

public void addKeyListener() {

edittext = (EditText) findViewById(R.id.editText);

button = (Button) findViewById(R.id.button_new);

button.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View arg0) {

Toast.makeText(Textbox_UI.this,edittext.getText(), Toast.LENGTH_LONG).show();

}
});
}
}

XML : 

activity_main

LOCATION: res/layout/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" >

<EditText
android:id="@+id/editText"
android:text="Write Here"
android:layout_width="match_parent"
android:layout_height="wrap_content" />

<Button
android:layout_width="221dp"
android:layout_height="72dp"
android:text="Click Here"
android:id="@+id/button_new"
android:layout_gravity="center" />

</LinearLayout>