我遇到了一个奇怪的问题,当我通过以下方法设置适配器项目角的布局时,它没有工作。shape
资源文件。
这是我的 shape
资源文件
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<corners android:radius="8dp" />
</shape>
这是我的适配器项目布局
<?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>
<import type="android.view.View.OnClickListener" />
<import type="android.view.View" />
<import type="com.zhixin.wedeep.homepage.data.model.BriefComposition" />
<variable
name="clickListener"
type="OnClickListener" />
<variable
name="composition"
type="BriefComposition" />
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="108dp"
android:layout_height="150dp"
android:background="@drawable/homepage_shape_recommend_composition_background"
android:gravity="center"
android:onClick="@{clickListener}"
android:orientation="vertical">
<TextView
android:id="@+id/text_view_label_is_new"
android:layout_width="36dp"
android:layout_height="22dp"
android:text="@string/homepage_new"
android:textColor="@color/color_white"
android:textSize="@dimen/font_size_10"
android:visibility='@{composition.tag == "NEW" ? View.VISIBLE : View.INVISIBLE}'
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="新上" />
<ImageView
android:id="@+id/image_view_cover"
imageFromUrl="@{composition.cover}"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
tools:src="@drawable/gt3_new_bind_logo" />
<LinearLayout
android:id="@+id/linear_layout_text_area"
android:layout_width="match_parent"
android:layout_height="42dp"
android:orientation="vertical"
android:paddingStart="5dp"
app:layout_constraintBottom_toBottomOf="parent"
tools:ignore="RtlSymmetry">
<TextView
android:id="@+id/text_view_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxLines="1"
android:text="@{composition.title}"
android:textColor="@color/color_white"
android:textSize="@dimen/font_size_13"
tools:text="助眠脑波" />
<TextView
android:id="@+id/text_view_duration"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="1dp"
android:text="@{composition.duration}"
android:textColor="@color/color_white"
android:textSize="@dimen/font_size_10"
tools:text="5-30min" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
这是我的 RecylerView
用于显示上述项目布局
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recycler_view_recommendation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:layout_marginStart="15dp"
android:layout_marginEnd="15dp"
app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
app:spanCount="3"
tools:itemCount="6"
tools:listitem="@layout/homepage_item_recommend_composition" />
这是我的 RecylerView
适配器
class RecommendCompositionsAdapter : ListAdapter<BriefComposition, RecommendCompositionsAdapter.ViewHolder>(BriefCompositionDiffCallback()) {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
return ViewHolder(HomepageItemRecommendCompositionBinding.inflate(
LayoutInflater.from(parent.context), parent, false))
}
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val briefComposition = getItem(position)
briefComposition?.let {
holder.apply {
itemView.tag = it
bind(createOnClickListener(it.id), it)
}
}
}
private fun createOnClickListener(id: String): View.OnClickListener {
return View.OnClickListener {
ARouter.getInstance().build(RouterConstant.PATH_AUDIO_PLAYER).withString(AudioPlayerActivity.KEY_ID, id).navigation()
}
}
class ViewHolder(private val binding: HomepageItemRecommendCompositionBinding)
: RecyclerView.ViewHolder(binding.root) {
fun bind(listener: View.OnClickListener, item: BriefComposition
) {
binding.apply {
clickListener = listener
composition = item
// from View
executePendingBindings()
}
}
}
}
对于这个奇怪的问题,有什么办法吗?先谢谢你
即使你把你的背景设置为你的 ConstraintLayout
,它被 ImageView
因此,你没有得到你的形状,你的 ConstraintLayout
有。我建议使用 CardView
而非 ConstraintLayout
. 将可绘制的内容设置为您的 CardView
并把所有的东西都放在你的体内 CardView
一如既往 ConstraintLayout
.
希望能帮到你