Android 如何使用kotlin将layoutmanager设置为RecycleView

如何使用kotlin作为java代码将layoutmanager设置为RecycleView，如下所示：

mRecyclerView.setLayoutManager(mLinearLayoutManager);

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

你可以用

recyclerView.layoutManager = LinearLayoutManager(context) // default orientation is vertical

// if you want horizontal recyclerview
// recyclerView.layoutManager = LinearLayoutManager(this, RecyclerView.HORIZONTAL, false)

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

你可以这样做

val linearLayoutManager = LinearLayoutManager(this)
linearLayoutManager.orientation = LinearLayoutManager.VERTICAL
recyclerview!!.layoutManager = linearLayoutManager
recyclerview!!.isNestedScrollingEnabled = true
recyclerview!!.setHasFixedSize(true)

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

---

只需编写此命令即可设置

LayoutManager

 // Define this globally
 lateinit var recyclerView: RecyclerView

 // Initialize this after `activity` or `fragment` is created
 recyclerView = findViewById(R.id.recyclerView) as RecyclerView

 recyclerView.setHasFixedSize(true)
 recyclerView.layoutManager = LinearLayoutManager(activity!!) as RecyclerView.LayoutManager

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

---

我也有同样的问题，原因是我把recyclerView初始化为

var recyclerView = findViewById<View>(R.id.recycleView)

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

var recycleView=findViewById（R.id.recycleView）

确保按如下方式初始化

var recyclerView = findViewById<View>(R.id.recycleView) as RecyclerView

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

var recyclerView=findViewById（R.id.recyclereview）作为recyclerView

在应用程序构建中应用插件

 apply plugin: 'kotlin-android-extensions'

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

对于我的案例视图，

RecyclerView

的id是

my\u recycler\u视图

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

在java文件中写入-

my_recycler_view.layoutManager = LinearLayoutManager(context)

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

---

默认情况下，

LinearLayoutManager（上下文）

将设置垂直方向，并根据需要进行更新。

recyclerView.layoutManager=LinearLayoutManager（上下文）
binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

或

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

---

recyclerView.layoutManager=GridLayoutManager（上下文，spanCount）

您可以使用此代码设置：

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

---

以下两行将方向设置为垂直方向

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

或

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

设置水平方向

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

要设置网格布局

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

mRecyclerView.layoutManager = GridLayoutManager(this, spanCount)

---

mRecyclerView？.layoutManager=LinearLayoutManager（活动）

您可以尝试使用以下解决方案

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

val mRecyclerView= v.findViewById<RecyclerView>(R.id.rec) //id RecyclerView    
mRecyclerView.layoutManager = LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL,false)

val mRecyclerView=v.findViewById（R.id.rec）//id RecyclerView
mRecyclerView.layoutManager=LinearLayoutManager（这是LinearLayoutManager.HORIZONTAL，false）

对AndroidX使用RecyclerView.HORIZONTAL而不是LinearLayoutManager.HORIZONTAL

binding.recyclerView.setHasFixedSize(true)
binding.recyclerView.layoutManager = LinearLayoutManager(this ,LinearLayoutManager.VERTICAL ,false)
binding.recyclerView.adapter = customAdapter(this ,getList())

var vegetableList: RecyclerView = findViewById(R.id.list_vegetable)
            vegetableList.layoutManager = LinearLayoutManager(this,
            RecyclerView.HORIZONTAL, false)

---

recyclerView.layoutManager=mlinearLayoutManager此答案提供的移动信息不超过已给出的答案。