android - listView 项目点击事件未触发

Question

我在使用 ListView 时遇到问题，当我单击它时没有任何反应。当我单击 listview 项目来 toast 时，我想要它，所以我知道它被单击了。我已经尝试/研究了一段时间但一无所获。有人介意看看我是否遗漏了我刚刚忽略的东西吗？非常感谢!

这是我的类(class):

public class MyCar extends Activity {

/**
 * Called when the activity is first created.
 */
public ListView mylistView;
String carInfo;
private ArrayAdapter<String> mylistAdapter;
ArrayList<String> arrayListCar = null;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_mycar);
    mylistView = (ListView) findViewById(R.id.listView);
    arrayListCar = new ArrayList<String>();
    //Just had to remove setting this adapter 2 times.  Took out line below to fix.
    mylistView.setAdapter(mylistAdapter);

    mylistView.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                                long id) {

            String item = ((TextView) view).getText().toString();

            Toast.makeText(getBaseContext(), item, Toast.LENGTH_LONG).show();

        }
    });
}

@Override
protected void onStart() {
    // TODO Auto-generated method stub
    super.onStart();
    carInfo = trySomethin();
    fillList();
}

public void fillList() {
    String make = "";
    String model = "";

    String[] pieces = carInfo.split("\"");
    make = pieces[3];
    model = pieces[7];

    ArrayList<String> carList = new ArrayList<String>();
    carList.add(make + " " + model);
    // Create ArrayAdapter using the car list.
    mylistAdapter = new ArrayAdapter<String>(MyCar.this, android.R.layout.simple_list_item_single_choice, carList);

    mylistView.setAdapter(mylistAdapter);
    mylistAdapter.notifyDataSetChanged();
}

Answer 1

如果 ListView 项上有任何元素，请为它们更改此元素

android:focusable="false"                     

如果您要在运行时更改任何元素的可见性，则每次更改其可见性时都必须以编程方式处理焦点。