Android ViewPager2不能与RecyclerView.Adapter一起使用
安卓工作室3.6 在我的活动中:Android ViewPager2不能与RecyclerView.Adapter一起使用,android,android-viewpager2,Android,Android Viewpager2,安卓工作室3.6 在我的活动中: override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) dataBinding = DataBindingUtil.setContentView<SelectionActivityBinding>( this,
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
dataBinding =
DataBindingUtil.setContentView<SelectionActivityBinding>(
this,
R.layout.selection_activity
)
dataBinding.setHandler(this)
setSupportActionBar(dataBinding.toolBarContainer.toolBar)
getSupportActionBar()!!.setDisplayHomeAsUpEnabled(true)
getSupportActionBar()!!.setDisplayShowTitleEnabled(false)
val articlesList = mutableListOf<Article>()
val article1 = Article()
article1.title = "111111"
articlesList.add(article1)
val article2 = Article()
article1.title = "222222"
articlesList.add(article2)
articleAdapter = ArticleAdapter()
articleAdapter.setList(articlesList)
dataBinding.viewPager2.adapter = articleAdapter
}
override-fun-onCreate(savedInstanceState:Bundle?){
super.onCreate(savedInstanceState)
数据绑定=
DataBindingUtil.setContentView(
这
R.layout.selection\u活动
)
setHandler(此)
设置支持操作栏(dataBinding.toolBarContainer.toolBar)
getSupportActionBar()!!.setDisplayHomeAsUpEnabled(真)
getSupportActionBar()!!.setDisplayShowTitleEnabled(false)
val articlesList=mutableListOf@MikeM.没有从远程加载数据。只有本地。确定我删除了itI找到了解决方案viewPager2的高度必须为0dp或匹配\u父级:android:layout\u width=“0dp”android:layout\u height=“0dp”是的,viewpager2高度需要匹配父级或0dp。否则,您将看到意外的结果。奇怪的问题,在任何地方都没有看到记录。很好的观点@a\u订阅者
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">
<data>
<variable
name="handler"
type="com.myproject.ui.activity.SelectionActivity" />
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/waitressCallMainContainer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
android:id="@+id/toolBarContainer"
layout="@layout/tool_bar"
android:title='@{@string/articles}'
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.viewpager2.widget.ViewPager2
android:id="@+id/viewPager2"
android:layout_width="0dp"
android:layout_height="300dp"
android:background="#bbccaa"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/toolBarContainer" />
class ArticleAdapter : RecyclerView.Adapter<ArticleAdapter.ArticleViewHolder>() {
var articleList: List<Article> = mutableListOf()
companion object {
private val TAG = ArticleAdapter::class.java.name
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ArticleViewHolder {
return ArticleViewHolder(parent)
}
override fun onBindViewHolder(holder: ArticleViewHolder, position: Int) {
Debug.d(TAG, "onBindViewHolder: position = $position")
holder.bind(articleList[position])
}
fun setList(articleList: List<Article>) {
this.articleList = articleList
notifyDataSetChanged()
}
override fun getItemCount(): Int = articleList.size
class ArticleViewHolder constructor(itemView: View) : RecyclerView.ViewHolder(itemView) {
constructor(parent: ViewGroup) :
this(
LayoutInflater.from(parent.context).inflate(
R.layout.article_item,
parent,
false
)
)
fun bind(article: Article) {
Debug.d(TAG, "bind: article = $article")
itemView.titleTextView.text = article.title
}
}
}