【发布时间】:2022-01-04 18:17:07
【问题描述】:
我正在尝试将可绘制图像添加到我的菜单RecyclerView,但是当我运行应用程序时,图像没有显示出来。我是否需要在我的模型类中将 menuImage 设为 Int 以便它知道图像需要进入的位置?还是在将其添加到数组时需要更改语法?或者我需要在我的menuImage 在我的MenuAdapter 上setImageDrawable?谢谢!
我的最终结果
我有什么
menu_item.xml
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.material.card.MaterialCardView 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"
android:layout_width="match_parent"
android:layout_height="50dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="@+id/iconImageButton"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginStart="16dp"
android:background="@drawable/circle_shape"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="TouchTargetSizeCheck,SpeakableTextPresentCheck" />
<ImageView
android:id="@+id/iconImageView"
android:layout_width="15dp"
android:layout_height="15dp"
android:elevation="10dp"
app:layout_constraintBottom_toBottomOf="@+id/iconImageButton"
app:layout_constraintEnd_toEndOf="@+id/iconImageButton"
app:layout_constraintStart_toStartOf="@+id/iconImageButton"
app:layout_constraintTop_toTopOf="@+id/iconImageButton"
app:srcCompat="@drawable/profile_photo_"
android:contentDescription="@string/string_menu_icon_image" />
<TextView
android:id="@+id/menuLabelTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:text="@string/menu_label"
android:textAllCaps="false"
android:textColor="@color/black"
android:textSize="16sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@+id/iconImageButton"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="@+id/menuArrowImageView"
android:layout_width="15dp"
android:layout_height="15dp"
android:layout_marginEnd="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/right_chevron_"
android:contentDescription="@string/menu_arrow" />
</androidx.constraintlayout.widget.ConstraintLayout>
</com.google.android.material.card.MaterialCardView>
MenuItem.kt
class MenuItem(val menuName: String = "", val menuImage: String = "")
MenuAdapter.kt
class MenuAdapter(var context: Context, var list: ArrayList<MenuItem>) : RecyclerView.Adapter<MenuAdapter.MyViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
val v = LayoutInflater.from(parent?.context).inflate(R.layout.menu_item, parent, false)
return MyViewHolder(v)
}
override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
holder?.bindItems(list[position])
}
override fun getItemCount(): Int {
return list.size
}
class MyViewHolder(view: View) : RecyclerView.ViewHolder(view){
fun bindItems(items: MenuItem) {
val menuName = itemView.findViewById<TextView>(R.id.menuLabelTextView)
val menuImage = itemView.findViewById<ImageView>(R.id.iconImageView)
menuName.text = items.menuName
Picasso.get().load(items.menuImage).into(menuImage)
}
}
}
MenuActivity.kt
lateinit var menuAdapter: MenuAdapter
val menuList = ArrayList<MenuItem>()
private fun createMenu() {
menuAdapter = MenuAdapter(this, menuList)
val menuRecycleView = findViewById<RecyclerView>(R.id.menuRecyclerView)
menuRecycleView.apply {
layoutManager = LinearLayoutManager(this@MenuActivity, LinearLayoutManager.VERTICAL, false)
adapter = menuAdapter
setHasFixedSize(true)
}
menuList.add(MenuItem("My Profile", "${R.drawable.outline_person_}"))
menuList.add(MenuItem("My Bookings", "${R.drawable.bookings_}"))
menuList.add(MenuItem("Payments", "${R.drawable.payment_}"))
menuList.add(MenuItem("On Going Jobs", "${R.drawable.on_going_jobs_}"))
menuList.add(MenuItem("Settings", "${R.drawable.settings_}"))
}
【问题讨论】:
-
在 xml 文件中尝试将 "app:srcCompat=" 更改为 "app:src="
-
@PRANAVSINGH,如果我输入
app:src=,我会得到error: attribute src (aka com.zwdalpha.skedaddle:src) not found.
标签: android kotlin android-recyclerview android-drawable