source code untuk actifitymain "a.xml"
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="alfandy pratama kasim"
android:textAppearance="?android:attr/textAppearanceLarge" />
<RadioGroup
android:id="@+id/gradio"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<RadioButton
android:id="@+id/r1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="Java" />
<RadioButton
android:id="@+id/r2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="PHP" />
<RadioButton
android:id="@+id/r3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Android" />
</RadioGroup>
<Button
android:id="@+id/b1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
<TextView
android:id="@+id/tampil"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="" />
</LinearLayout>
tampilanya
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setelah itu kita buat mainactifitynya "MainActivity.java"
public class MainActivity extends Activity implements OnClickListener,
OnCheckedChangeListener {
RadioButton ra1, ra2, ra3;
RadioGroup rg;
TextView tam;
Button bu;
String h;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.a);
ra1 = (RadioButton) findViewById(R.id.r1);
ra2 = (RadioButton) findViewById(R.id.r2);
ra3 = (RadioButton) findViewById(R.id.r3);
rg = (RadioGroup) findViewById(R.id.gradio);
tam = (TextView) findViewById(R.id.tampil);
bu = (Button) findViewById(R.id.b1);
bu.setOnClickListener(this);
rg.setOnCheckedChangeListener(this);
}
@Override
public void onCheckedChanged(RadioGroup group, int check) {
// TODO Auto-generated method stub
if (check == R.id.r1) {
h = "Pilihan adan adalah JAVA";
} else if (check == R.id.r2) {
h = "Pilihan adan adalah PHP ";
} else if (check == R.id.r3) {
h = "Pilihan adan adalah ANDROID";
} else {
h = "delo ba pilih ka sana!";
}
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
tam.setText(h);
rg.clearCheck();
}
}
setelah itu kita raning.
