Android Studio: Cara Membuat Android Apps

In this video I start my new Android tutorial. The last Android tutorial I made is still very popular, but I’m going to try and improve on it here.

If you are a beginner to Android and don’t know Java you may prefer my Android tutorial for beginners. I’ll be using Android Studio in this tutorial and I show how to install Android Studio here. All of the code follows the tutorial below.

If you like videos like this, it helps my search ranking if you share it on Google Plus with a click here

Code from the Video

MainActivity.java

package com.newthinktank.helloagain.app;
	 
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
	 
public class MainActivity extends ActionBarActivity {
 
    // onCreate is executed when the activity is created
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
         
    // Sets the file activity_main.xml as the user interface
       setContentView(R.layout.activity_main);

    // To be able to edit the TextView with our code we have to create it and
    // bind it to a TextView object. I need to use final because it will be
    // used in the inner class below
       final TextView firstTextView = (TextView) findViewById(R.id.textView);
 
     // I set up the Button just like I did the TextView
        Button firstButton = (Button) findViewById(R.id.firstButton);

      // This is how you make the Button change the text in the TextView when it is clicked
       firstButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
 
            firstTextView.setText("You Clicked");
	 
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
       // Handle action bar item clicks here. The action bar will
       // automatically handle clicks on the Home/Up button, so long
       // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

activity_main.xml

<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"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
   tools:context="com.newthinktank.helloagain.app.MainActivity">

    <TextView
        android:text="@string/hello_world"
        android:textSize="40sp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:id="@+id/textView" />
	 
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button_1_text"
        android:id="@+id/firstButton"
        android:layout_below="@+id/textView"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="52dp" />
 
</RelativeLayout>

dimens.xml

	<resources>
	    <dimen name="activity_horizontal_margin">16dp</dimen>
	    <dimen name="activity_vertical_margin">16dp</dimen>
	</resources>

strings.xml

	<?xml version="1.0" encoding="utf-8"?>
	<resources>
	 
	    <string name="app_name">HelloAgain</string>
	    <string name="hello_world">Hello Again</string>
	    <string name="action_settings">Settings</string>
	    <string name="button_1_text">You Clicked</string>
	 
	</resources>

AndroidManifest.xml

	<?xml version="1.0" encoding="utf-8"?>
	<manifest xmlns:android="http://schemas.android.com/apk/res/android"
	    package="com.newthinktank.helloagain.app" >

	    <application
	        android:allowBackup="true"
	        android:icon="@drawable/ic_launcher"
	        android:label="@string/app_name"
	        android:theme="@style/AppTheme" >
	        <activity

android:name="com.newthinktank.helloagain.app.MainActivity"

	            android:label="@string/app_name" >
	            <intent-filter>
	                <action android:name="android.intent.action.MAIN" />
	 
	                <category android:name="android.intent.category.LAUNCHER" />
	            </intent-filter>
	        </activity>
	    </application>
	 
	</manifest>

Android Studio: Cara Membuat Android Apps

Referensi

Navigation menu

Search