<Spinner
android:id=”@+id/spinner”
android:layout_width=”fill_parent”
android:layout_height=”wrap_content” />

// 建立Adapter
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
adapter.add(“red”);
adapter.add(“green”);
adapter.add(“blue”);

// 在Spinner設定Adapter
Spinner spinner = (Spinner) findViewById(R.id.spinner);
spinner.setAdapter(adapter);

// 取得Spinner的選擇事件
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
String item = (String) parent.getSelectedItem();
Toast.makeText(Ch0123.this, item + “被選擇了”,
Toast.LENGTH_SHORT).show();
}

@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});