Question

就这么简单。我想在列表视图的列表项上实现onclick，同时，长按listview的textview。但似乎我一次只能应用一个。它不能那么困难。任何帮助将不胜感激。

Answer 1

以下代码对我来说很好。

基本上，您可以将setOnLongClickListener添加到getView方法的textview中。

代码取自here。我刚刚添加了textView.setOnLongClickListener。单击列表项时，将显示toast。当您长按列表中的文本视图时，日志会显示。

public class ListMobileActivity extends ListActivity {
static final String[] MOBILE_OS = new String[] { "Android", "iOS",
        "WindowsMobile", "Blackberry"};
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setListAdapter(new MobileArrayAdapter(this, MOBILE_OS));
}

@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
    String selectedValue = (String) getListAdapter().getItem(position);
    Toast.makeText(this, selectedValue, Toast.LENGTH_SHORT).show();
}
}

这是自定义适配器：

public class MobileArrayAdapter extends ArrayAdapter<String> {
private final Context context;
private final String[] values;

public MobileArrayAdapter(Context context, String[] values) {
    super(context, R.layout.list_mobile, values);
    this.context = context;
    this.values = values;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    LayoutInflater inflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View rowView = inflater.inflate(R.layout.list_mobile, parent, false);
    TextView textView = (TextView) rowView.findViewById(R.id.label);
    ImageView imageView = (ImageView) rowView.findViewById(R.id.logo);
    textView.setText(values[position]);
    textView.setOnLongClickListener(new OnLongClickListener() {

        @Override
        public boolean onLongClick(View v) {
            Log.i("MobileArrayAdapter", (String) ((TextView)v).getText());
            return false;
        }

    });
    // Change icon based on name
    String s = values[position];

    System.out.println(s);

    if (s.equals("WindowsMobile")) {
        imageView.setImageResource(R.drawable.windowsmobile_logo);
    } else if (s.equals("iOS")) {
        imageView.setImageResource(R.drawable.ios_logo);
    } else if (s.equals("Blackberry")) {
        imageView.setImageResource(R.drawable.blackberry_logo);
    } else {
        imageView.setImageResource(R.drawable.android_logo);
    }

    return rowView;
}
}

希望这有帮助。

实现单击列表项并长按android中的元素

1 个答案: