setOnItemClickListener不适用于Spinner

Question

setOnItemClickListener不适用于Spinner.这是我的代码......

supplier.setOnItemClickListener(new OnItemClickListener() {

                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position,
                        long id) {
                    // TODO Auto-generated method stub

                    String msupplier=supplier.getSelectedItem().toString();
                    Log.e("Selected item : ",msupplier);

                }
            });

Answer 1

setOnItemClickListener不适用于微调器.尝试使用此方法:

setOnItemSelectedListener

更改您的代码如下:

supplier.setOnItemSelectedListener(new OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> arg0, View arg1,
                    int arg2, long arg3) {
                // TODO Auto-generated method stub
                String msupplier=supplier.getSelectedItem().toString();

                Log.e("Selected item : ",msupplier);
}

            @Override
            public void onNothingSelected(AdapterView<?> arg0) {
                // TODO Auto-generated method stub

            }
        });

Answer 2

OnItemSelectedListener()与点击侦听器的用途不同。最重要的是，如果您再次单击当前选定的项目，它不会触发。在某些情况下，这可能不是问题，但在其他情况下，这很可能是问题。所以真正的答案不是告诉人们使用不同的、可能不合适的听众，而是解决最初的问题。:-)

幸运的是，我们可以将点击监听器放在适配器上：

public class SpinnerClickAdapter extends BaseAdapter implements SpinnerAdapter {
  protected OnItemClickListener listener;

  public SpinnerClickAdapter(Context context, ..., OnItemClickListener listener) {
    super();

    this.listener = listener;
  }

  @Override
  public View getDropDownView(final int position, View convertView, final ViewGroup parent) {
    if (convertView == null)
      convertView = LayoutInflater.from(context).inflate(R.layout.yourlayout, false);

    convertView.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        if (listener != null)
          listener.onItemClick((AdapterView<?>) parent, v, position, getItemId(position));
      }
    });


    // ...

    return convertView;
  }
}

然后我们可以像往常一样使用它，唯一的区别是不在微调器上而是在适配器上设置它：

Spinner spinner = (Spinner) findViewById(R.id.yourspinner);
SpinnerClickAdapter spinnerAdapter = new SpinnerClickAdapter(context, ..., new AdapterView.OnItemClickListener() {
  @Override
  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    // TODO
  }
});
spinner.setAdapter(spinnerAdapter);

Answer 3

1.我认为你应该检查包含微调器的xml文件.确保没有设置android:clickable = "false".

2.请检查您的微调适配器,并确保在你的getView(int position, View convertView, ViewGroup parent)方法,你没有设置任何插件点击回调事件,例如Button,Imageview,TextView