使用 Kotlin 在片段中以编程方式创建按钮
我希望从数据库中在Kotlin中的片段中生成一列按钮。目前，我只尝试了一个按钮，但是我似乎无法在XML文件中进行硬编码而无法执行此操作。到目前为止，这是我的代码：
class NotesFragment() : Fragment() {
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
val view: View = inflater!!.inflate(R.layout.fragment_notes, container, false)
//val root : ViewGroup = inflater.inflate(R.layout.fragment_notes, null) as ViewGroup
val button_Id: Int = 1111
val button = Button((activity as MainActivity?)!!)
button.setText("Button 4 added dynamically")
button.setLayoutParams(ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT))
button.setId(button_Id)
button.x = 250f
button.y = 500f
button.setOnClickListener(this)
view.add(button)
return view
}
}
我知道我可能应该在此处某处寻找布局，然后对其进行addView ...下一步是什么？
I wish to generate a column of buttons inside a fragment in Kotlin from a database. For now I tried with just one button, but I cannot seem to do it without hardcoding it in the XML file. Here is my code so far:
class NotesFragment() : Fragment() {
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
val view: View = inflater!!.inflate(R.layout.fragment_notes, container, false)
//val root : ViewGroup = inflater.inflate(R.layout.fragment_notes, null) as ViewGroup
val button_Id: Int = 1111
val button = Button((activity as MainActivity?)!!)
button.setText("Button 4 added dynamically")
button.setLayoutParams(ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT))
button.setId(button_Id)
button.x = 250f
button.y = 500f
button.setOnClickListener(this)
view.add(button)
return view
}
}
I know I should probably look for the layout somewhere in this and do an addView with it... What is the next step?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
我这样做
view.rootView.findViewById(R.id.button_container).addView(button) I did it like this
view.rootView.findViewById<RelativeLayout>(R.id.button_container).addView(button)