<?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">
<ListView
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/itemTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="16dp"
android:textSize="18sp" />
import android.app.AlertDialog;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
private ListView listView;
private String[] items = {"Item 1", "Item 2", "Item 3"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = findViewById(R.id.listView);
ArrayAdapter<String> adapter = new ArrayAdapter<>(this, R.layout.list_item, R.id.itemTextView, items);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
showDialog(position);
}
});
}
private void showDialog(int position) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
switch (position) {
case 0:
builder.setTitle("Item 1")
.setMessage("This is the details of Item 1.")
.setPositiveButton("OK", null);
break;
case 1:
builder.setTitle("Item 2")
.setMessage("This is the details of Item 2.")
.setPositiveButton("OK", null);
break;
case 2:
builder.setTitle("Item 3")
.setMessage("This is the details of Item 3.")
.setPositiveButton("OK", null);
break;
}
AlertDialog dialog = builder.create();
dialog.show();
}
}