UNIVERSITAS KOMPUTER INDONESIA

UNIVERSITAS KOMPUTER INDONESIA

BAB III. HELLO WORLD Dosen Pembina : Bella Hardiyana, S. Kom, M. Kom

HelloWorld1 (1) Buatlah sebuah proyek baru dengan spesifikasi dibawah ini :

HelloWorld1 (2) MainActivity.java package com.latihan.hello1; import android.os.Bundle; import android.app.Activity; import android.view.Menu; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { //metode wajib ada super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override public boolean onCreateOptionsMenu(Menu menu) { //metode opsional // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }

HelloWorld1 (3) activity_main.xml

HelloWorld1 (4) R.java package com.latihan.hello1; public final class R { public static final class attr { } public static final class dimen { public static final int activity_horizontal_margin=0x7f040000; public static final int activity_vertical_margin=0x7f040001; } public static final class drawable { public static final int ic_launcher=0x7f020000; } public static final class id { public static final int action_settings=0x7f080000; }

public static final class layout { public static final int activity_main=0x7f030000; } public static final class menu { public static final int main=0x7f070000; } public static final class string { public static final int action_settings=0x7f050001; public static final int app_name=0x7f050000; public static final int hello_world=0x7f050002; } public static final class style { public static final int AppBaseTheme=0x7f060000; public static final int AppTheme=0x7f060001; } }

HelloWorld2 (1) Buatlah sebuah proyek baru dengan spesifikasi dibawah ini :

HelloWorld2 (2) MainActivity.java package com.latihan.hello2; import android.os.Bundle; import android.widget.TextView; import android.app.Activity; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TextView txtHello = new TextView(this); txtHello.setText("Hello World!"); setContentView(txtHello); } }

HelloWorld2 (3) activity_main.xml //Hapus TextView

HelloWorld3 (1) Buatlah sebuah proyek baru dengan spesifikasi dibawah ini :

HelloWorld3 (2) activity_main.xml



HelloWorld3 (3) UI dari activity_main.xml

HelloWorld3 (4) strings.xml <string name="app_name">Hello World 3 <string name="action_settings">Settings <string name="hello_world">Hello world! <string name="halo_bandung">Halo Kota Bandung

HelloWorld3 (5)

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