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Sedang memuat....Belajar Tutorial Android Studio Paling Gampang....

Belajar Tutorial Android Studio Paling Gampang

Tutorial android studio membuat luas persegi panjang – Setelah instalsi android sudah dilakunan sekarang kita blajar ketahap berikutnya yaitu aplikasi android studio paling sederhana, kita mulai dengan yang paling mudah terlebih dahulu. Seperti kita waktu kecil ketika masih di bangku kelas 1 kita belajar matematika di mulai dengan beritung , penjumlahan, pengurangan , perkalian pembagian dan seterusnya.

Kali ini saya akan memberikan tutorial aplikasi android matematika. untuk contoh kali ini mari kita coba menghitung luas persegi panjang. Perhatikan tahapan dalam membuat aplikasi android sederhana tersebut di bawah ini.

Langkah – langkah aplikasi menghitungg Luas Persegi Panjang 

1. Jalnkan Aplikasi Android Studio, jika belum punya bisa silahkan Unduh di web resminya Android Studio 2.1.2.0

2. Pilih Start a new Android Studio Project.

tutorial-aplikasi-android-studio

tutorial-aplikasi-android-studio

3. Create New Project. isi kolom sesui keinginan -> Next

tutorial-aplikasi-android-studio2

tutorial-aplikasi-android-studio2

4. Centang pada Phone and Tablet -> Next

tutorial-aplikasi-android-studio3

tutorial-aplikasi-android-studio3

5. pilih Blank Activity -> Next

tutorial-aplikasi-android-studio4

tutorial-aplikasi-android-studio4

6. isi kolom sesuai dengan gambar. agar belajar anda lebih mudah

tutorial-aplikasi-android-studio5

tutorial aplikasi android studio

7. lalu Finish. (akan membuka halaman project)

tutorial-aplikasi-android-studio6

tutorial aplikasi android studio

akan menampilkan layout activity_main.xml dan bisa kita jalankan langsung.
Jika kita рunуа Device Android silahkan соnnесtkаn kе kоmрutеr mеlаlui uѕb port.
ketika kita coba klik run. akan muncul tampilan jendela. sebuah pilah mau di jalan kan dimanan ? silahkan pilih dikomputer . pilih Choose Running Device biar lebih cepat jalanya. -> klik OK
Tampilan yang muncul seperti dibawah ini

tutorial-aplikasi-android-studio7

tutorial aplikasi android studio

untuk tampilan awal masih ada tulisan Hello Word.

tutorial-aplikasi-android-studio8

tutorial aplikasi android studio

8. Untuk membuat gui kolom kotak silahkan masukan kode di bawah ini ke 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=”.MainActivity”
android:id=”@+id/relativeLayout”>
<TextView
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:text=”Panjang”
android:id=”@+id/textView”
android:layout_alignParentTop=”true”
android:layout_alignParentLeft=”true”
android:layout_alignParentStart=”true” />
<EditText
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:inputType=”number”
android:ems=”10″
android:id=”@+id/editTextPanjang”
android:layout_below=”@+id/textView”
android:layout_alignParentLeft=”true”
android:layout_alignParentStart=”true”
/>

<TextView
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:text=”Lebar”
android:id=”@+id/textView2″
android:layout_below=”@+id/editTextPanjang”
android:layout_alignParentLeft=”true”
android:layout_alignParentStart=”true” />

<EditText
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:inputType=”number”
android:ems=”10″
android:id=”@+id/editTextLebar”
android:layout_below=”@+id/textView2″
android:layout_alignParentLeft=”true”
android:layout_alignParentStart=”true” />

<Button
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:text=”Hitung Luas”
android:id=”@+id/buttonHitungLuas”
android:layout_below=”@+id/editTextLebar”
android:layout_alignParentLeft=”true”
android:layout_alignParentStart=”true” />

<TextView
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:text=”Luas”
android:id=”@+id/textView3″
android:layout_below=”@+id/buttonHitungLuas”
android:layout_alignParentLeft=”true”
android:layout_alignParentStart=”true” />

<EditText
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:inputType=”number”
android:ems=”10″
android:id=”@+id/editTextLuas”
android:layout_below=”@+id/textView3″
android:layout_alignParentLeft=”true”
android:layout_alignParentStart=”true” />
</RelativeLayout>

Nah Enakya di android studio kita bisa melihat preview langsung

9. sekarang kita masukan kode dibawah ini ke bagian javanya. buaka MainActivity.java

package net.agusharyanto.persegipanjang;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends ActionBarActivity {

private EditText edtPanjang;
private EditText edtLebar;
private EditText edtLuas;
private Button btnHitungLuas;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initUI();
initEvent();
}
private void initUI(){
edtPanjang = (EditText) findViewById(R.id.editTextPanjang);
edtLebar = (EditText) findViewById(R.id.editTextLebar);
edtLuas = (EditText) findViewById(R.id.editTextLuas);
btnHitungLuas = (Button) findViewById(R.id.buttonHitungLuas);

}

private void initEvent(){
tnHitungLuas.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
hitungLuas();

}

});

}
private void hitungLuas(){
int panjang = Integer.parseInt(edtPanjang.getText().toString());
int lebar = Integer.parseInt(edtLebar.getText().toString());
int luas = panjang*lebar;
edtLuas.setText(luas+””);
}

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

//noinspection SimplifiableIfStatement

if (id == R.id.action_settings) {
return true;

}

return super.onOptionsItemSelected(item);
}

}

10. Kalau dulu di есliрѕе untuk konfigurasi aplikasi ada difile AndroidManifest.xml, kаlаu di Android Studio konfigurasinya аdа pada filе build.grаdlе (module:app)

apply plugin: ‘com.android.application’
android {
compileSdkVersion 21
buildToolsVersion “21.1.2”
defaultConfig {
applicationId “net.agusharyanto.persegipanjang”
minSdkVersion 15
targetSdkVersion 21
versionCode 1
versionName “1.0”
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile(‘proguard-android.txt’), ‘proguard-rules.pro’
}
}
}
dependencies {
compile fileTree(dir: ‘libs’, include: [‘*.jar’])
compile ‘com.android.support:appcompat-v7:21.0.3’
}

11. setelah kode sudah masuk semua. kita coba run. sebaiknya coba run di HP android sebab jika di jalankan di komputer memakai emulator akan lambat, banyak memakan recource .

al hasil seperti gambar di bawah ini.

Nah. lebih mudahkan , membuat aplikasi android studio. sekian dari kami semoga bermanfaat

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Belajar Tutorial Android Studio Paling Gampang | asrosibejo | 4.5
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