Android first program Hello World! ~ CTechnicaltrick

Android first program Hello World

Android first program fig-1

Android first program fig-2

Android first program fig-3

At the final stage it going to be open development tool to write the application code.

Android first program fig-1

Coding Part

Activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout

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" >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerHorizontal="true"

android:layout_centerVertical="true"

android:padding="@dimen/padding_medium"

android:text="@string/hello_world"

tools:context=".MainActivity" />

</RelativeLayout>

MainActivity.java.

package com.example.helloworld

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

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
    }
}

Manifest file

<?xml version="1.0" encoding="utf-8"?>

<manifest

xmlns:android="http://schemas.android.com/apk/res/android"

package="com.example.helloworld">


<application

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:roundIcon="@mipmap/ic_launcher_round"

android:supportsRtl="true"


android:theme="@style/AppTheme">


        <activity android:name=".MainActivity">


            <intent-filter>


                <action android:name="android.intent.action.MAIN"/>


                <category android:name="android.intent.category.LAUNCHER"/>


            </intent-filter>


        </activity>


    </application>


</manifest>

Output (Hello world)

Hello world

About Admin MC3

This is dummy text. It is not meant to be read. Accordingly, it is difficult to figure out when to end it. But then, this is dummy text. It is not meant to be read. Period.