First App in Android Studio

How to create project in android studio?


In this post we will learn how to create a project on Android Studio and run on android emulator step wise, You must have Android Studio installed properly...
We will cover followings:
✔Create New Project
✔Use Empty Activity
✔Run Project on emulator
✔Print "Hello World"


Step 1: Open Android Studio & Click "Start a new Android Studio Project".


Step 2: Enter Application Name, Company Domain, Project Location & Click "Next".



Step 3: Select target API Level & Click "Next".


Step 4: Choose Activity(Empty Activity) & Click "Next".



Step 5: Enter Activity Name(MainActivity) & Click "Finish".



Step 6: Code of MainActivity.java

package com.blogspot.devofandroid.myapplication;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}


Step 7: Code of activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>


Step 8: Click Run & Choose your Emulator/Device & Press "OK":



Step 9: Thats it:



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