Edittext Tutorial Android Studio

In this tutorial we will learn how to:
✓Use EditText
✓Get Data from EditText
✓Validate EditText
✓Save Data of EditText(on Button click to TextView)

Step 1: Create a new project OR Open your project

Step 2: Code

activity_main.xml

<?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:orientation="vertical"android:padding="10dp"tools:context=".MainActivity"><EditTextandroid:id="@+id/f_name_et"android:hint="Enter First Name"android:inputType="text"android:layout_width="match_parent"android:layout_height="wrap_content" /><EditTextandroid:id="@+id/l_name_et"android:hint="Enter Last Name"android:inputType="text"android:layout_width="match_parent"android:layout_height="wrap_content" /><Buttonandroid:id="@+id/save_btn"android:text="Save"android:layout_gravity="center"android:layout_width="wrap_content"android:layout_height="wrap_content" /><TextViewandroid:id="@+id/f_name_tv"android:text="First Name:"android:textSize="30sp"android:layout_width="wrap_content"android:layout_height="wrap_content" /><TextViewandroid:id="@+id/l_name_tv"android:text="Last Name:"android:textSize="30sp"android:layout_width="wrap_content"android:layout_height="wrap_content" /></LinearLayout>

MainActivity.java

package com.blogspot.devofandroid.myapplication;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends AppCompatActivity {EditText mFirstNameEt , mLastNameEt;Button mSaveBtn;TextView mFirstNameTv , mLastNameTv;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mFirstNameEt = findViewById(R.id.f_name_et);mLastNameEt  = findViewById(R.id.l_name_et);mFirstNameTv = findViewById(R.id.f_name_tv);mLastNameTv  = findViewById(R.id.l_name_tv);mSaveBtn = findViewById(R.id.save_btn);mSaveBtn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {//get text from edit textString mFName = mFirstNameEt.getText().toString().trim();String mLName = mLastNameEt.getText().toString().trim();//validate Edit Textif (mFName.isEmpty()){Toast.makeText(MainActivity.this , "Enter first name" , Toast.LENGTH_SHORT).show();}else if (mLName.isEmpty()){Toast.makeText(MainActivity.this , "Enter last name" , Toast.LENGTH_SHORT).show();}else {mFirstNameTv.setText("First Name: "+mFName);mLastNameTv.setText("Last Name: "+mLName);}}});}}

Note: android:inputType="" is used to define the input type. The possible input types are:

text , none , number , date , datetime , numberDecimal , numberPassword , numberSigned , phone , textAutoComplete , textAutoCorrect , textCapCharacters , textCapSentences , textCapWords , textEmailAddress , textEmailSubject , textFilter , textImeMultiLine , textLongMessage , textMultiLine , textNoSuggestion , textPassword , textPersonName , textPhonetic , textPostalAddress , textShortMessage , textUri , textVisiblePassword , textWebEditText , textWebEmailAddress , textWebPassword , time.

Step 3: Output