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— NFToa (@nftoa_) September 2, 2025
What is a list view widget? With this widget, you can create a list containing many items. Two or more items can be selected simultaneously depending on the type of list view widget we use.
Figure 7.1. Selection widget 1
1. Run Enclipse, create a new Project
Figure 7.2. New Project
2. Fill in the parameters as follows
| Project name | MengenalSelectionWidget |
|------------------|--------------------------|
| Build Target | Android 2.2 |
| Application name | Mengenal Slection Widget |
| Package name | contoh.seleksi |
| Create Activity | seleksi |
| Min SDK version | 8 |3. Then type the following script in main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="@+id/yangDipilih"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:drawSelectorOnTop="false"
/>
</LinearLayout>4. Type the selection.java script as follows
package contoh.seleksi;
import android.app.ListActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class seleksi extends ListActivity {
/** Called when the activity is first created. */
TextView seleksi;
String[] pilihan = {
"Merbabu", "Merapi", "Lawu", "Rinjani",
"Sumbing","Sindoro", "Krakatau", "Selat Sunda",
"Selat Bali","Selat Malaka","Kalimantan",
"Sulawesi", "Jawa" };
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setListAdapter(new ArrayAdapter<String>
(this,android.R.layout.simple_list_item_1, pilihan));
seleksi = (TextView) findViewById(R.id.yangDipilih);
}
public void onListItemClick(ListView parent, View v,
int position, long id) {
seleksi.setText(pilihan[position]);
}
}5. If the script is messy, do Format (source > format).
6. Do a RUN and see the results.
Program Explanation
Okay, let's start from the main.xml layout. You just need to put a TextView (lines 7-10) to display whatever you click and a ListView (lines 11-15) to display whatever items are clickable. The two widgets above, are arranged in one LinearLayout.
We switch to the activity, line 12 is the object declaration section and in lines 13-17 we create an array type object of type string containing the names of mountains and straits in Indonesia. The setLIstAdapter() method in line 22 can be likened to a bridge between the ListView in the xml layout and the item array. In line 23, if simple_list_item_1 is replaced with simple_list_single_choice, the result looks like Figure 6.10(a), while if it is replaced with simple_list_ multiple_choice, the result looks like Figure 6.10(b).
Figure 7.3.(a) ListView with simple_list_single_choice, b) ListView with simple_list_multiple_choice