Question

所以我有一个班级

class createLobby : AppCompatActivity() {
    var invited = ArrayList<String>()
    private class myCustomAdapter(context: Context, users:ArrayList<User>): BaseAdapter() {
        override fun getView(position: Int, convertView: View?, viewGroup: ViewGroup?): View {
            invited.add(mUsers.get(position).idUser)
        }
    }
}

问题在于我无法修改被邀请，它表示未解决的参考

我尝试更改invited.add(mUsers.get(position).idUser)：

this.invited...
createLobby.invited...
((createLobby) stuff here)

但它没有工作，任何想法或帮助？谢谢！

Answer 1

看起来你想用inner来标记你的内部类。见这里：https://kotlinlang.org/docs/reference/nested-classes.html

所以你会：

class createLobby : AppCompatActivity() {
    var invited = ArrayList<String>()
    private inner class myCustomAdapter(context: Context, users:ArrayList<User>): BaseAdapter() {
        override fun getView(position: Int, convertView: View?, viewGroup: ViewGroup?): View {
            invited.add(mUsers.get(position).idUser)
        }
    }
}

从内部类修改全局变量的值

1 个答案: