xml 在ViewHolder中为Recycler View扩展视图

Posted 2021-05-16

class MyProfileViewHolder(
        itemView: View,
        private val myProfileViewModel: MyProfileViewModel) : RecyclerView.ViewHolder(itemView) {

    private val userImageView: ImageView = itemView.myProfileMainUserImageView
    private val myProfileSelfIntroductionText: TextView = itemView.myProfileSelfIntroductionText
    private val favoriteEmptyFrame: FrameLayout = itemView.favoriteEmptyFrame

    fun bind() {
        // DefaultImage
        val url = myProfileViewModel.user.getProfileImageUrl(myProfileViewModel.selectedImageIndex, "medium")
        profileViewHelper.setProfileMainImage(
                userImageView,
                myProfileViewModel.user.getProfileImageUrl(myProfileViewModel.selectedImageIndex, "medium"),
                myProfileViewModel.user.gender
        )
        // Self intro duction
        myProfileSelfIntroductionText.text = myProfileViewModel.user.description

        // favorite empty frame
        when(myProfileViewModel.emptyViewType) {
            MyProfileViewModel.EMPTY_VIEW_TYPE_FAVORITE -> {
                // it doesn't work
                LayoutInflater.from(itemView.context).inflate(R.layout.section_favorite_empty, favoriteEmptyFrame, false)
            }
        }
    }
}

class MyProfileAdapter(
        private var items: List<Favorite>,
        private val myProfileViewModel: MyProfileViewModel,
) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {

// ----------------- 
    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder  {
        when (viewType) {
            TYPE_HEADER -> {
                return MyProfileViewHolderHeader(LayoutInflater
                        .from(parent.context)
                        .inflate(R.layout.section_my_profile_header, parent, false), myProfileViewModel)
            }
            TYPE_ITEM -> {
              // ......
            }
        }

        throw RuntimeException("there is no type that matches the type $viewType + make sure your using types correctly")
    }
// -----------------
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/emptyContents"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <ImageView
        android:id="@+id/contentsEmptyImg"
        android:layout_width="120dp"
        android:layout_height="120dp"
        android:layout_marginTop="32dp"
        android:layout_gravity="center_horizontal"
        app:srcCompat="@drawable/empty_image"/>

    <TextView
        android:id="@+id/contentsEmtpyTxt"
        android:layout_width="match_parent"
        android:layout_height="18dp"
        android:textColor="@color/black"
        android:textSize="15sp"
        android:text="@string/contents_empty"/>

</LinearLayout>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    tools:context=".presentation.view.profile.MyProfileFragment">
    <ImageView
        android:id="@+id/myProfileMainUserImageView"
        android:layout_width="240dp"
        android:layout_height="240dp"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="5dp"/>
    <TextView
        android:id="@+id/myProfileSelfIntroductionText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginEnd="10dp"
        android:layout_marginStart="10dp"
        android:background="@drawable/self_introduction_border"
        android:paddingBottom="10dp"
        android:paddingTop="10dp"
        android:textColor="@color/black"
        android:textSize="14sp" />

    <FrameLayout
        android:id="@+id/favoriteEmptyFrame"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:layout_marginBottom="?actionBarSize"
    tools:context=".presentation.view.profile.MyProfileFragment">
    <android.support.v7.widget.Toolbar
        android:id="@+id/myProfileToolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/white"
        android:textColor="@color/black"
        android:elevation="4dp"
        android:minHeight="?attr/actionBarSize"
        android:theme="?attr/actionBarTheme" />

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_my_profile"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</LinearLayout>