OnItemSelectedListener上的铸造误差

Question

这是我受影响的代码

Object[] rooms = new Object[]{
    new OnItemSelectedListener() {
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            tmEditor.putInt("level", position);
        }

        public void onNothingSelected(AdapterView<?> parent) {
        }
    }, 
    new OnItemSelectedListener() {
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            tmEditor.putInt("amount", position);
        }

        public void onNothingSelected(AdapterView<?> parent) {
        }
    }
};

问题是当我把它叫做其他地方的时候

((Spinner) widget).setOnItemClickListener((OnItemClickListener) rooms[1]);

然后，我得到一个强制转换异常错误。

java.lang.ClassCastException: com.ssttevee.Loki$1$8 cannot be cast to android.widget.AdapterView$OnItemClickListener

Answer 1

不能将AdapterView.OnItemSelectedListener转换为AdapterView.OnItemClickListener。使用setOnItemSelectedListener或将rooms更改为AdapterView.OnItemClickListener数组。