我有一个回收视图。在适配器的onBindViewHolder
方法中,我有以下代码来加载图像:
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
Log.i("TEST-APP", "Binding View Holder")
Glide.with(context)
.load(items[position])
.placeholder(R.drawable.animated_loading_icon)
.into(holder.imageView)
}
然而,Android Studio显示“placeholder”未解决的引用。这令人困惑,因为文档表明这是加载占位符的正确方式。
我做错了什么?
此外,在RecyclerViewAdapter
类中,这是我的导入:
package com.example.myname.recylerviewtest
import android.content.Context
import android.support.v7.widget.RecyclerView
import android.util.Log
import android.view.*
import com.bumptech.glide.Glide
import kotlinx.android.synthetic.main.recyclerview_item_column.view.*
最后,这是我的build.gradle中的依赖关系:
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.0'
api 'com.android.support:recyclerview-v7:27.1.1'
implementation 'com.android.support:support-v4:27.1.1'
implementation 'me.zhanghai.android.materialprogressbar:library:1.4.2'
implementation 'com.github.bumptech.glide:glide:4.7.1'
annotationProcessor 'com.github.bumptech.glide:compiler:4.7.1'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}