大佬教程收集整理的这篇文章主要介绍了Picasso 未在 ImageView 上加载图像，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
我正在尝试在 RecyclerVIEw 元素中加载图像：
<?xml version="1.0" enCoding="utf-8"?>
<relativeLayout xmlns:androID="http://scheR_786_11845@as.androID.com/apk/res/androID"
androID:layout_wIDth="match_parent"
androID:layout_height="wrap_content"
xmlns:app="http://scheR_786_11845@as.androID.com/apk/res-auto">
<androIDx.cardvIEw.Widget.CardVIEw
androID:layout_wIDth="match_parent"
androID:layout_height="wrap_content"
app:cardCornerRadius="20dp"
androID:ID="@+ID/cardvIEw"
androID:layout_margintop="20dp">
<relativeLayout
androID:layout_wIDth="match_parent"
androID:layout_height="wrap_content"
androID:ID="@+ID/innerrl"
androID:layout_margintop="20dp"
androID:layout_marginBottom="20dp">
<ImageVIEw
androID:layout_wIDth="50dp"
androID:layout_height="50dp"
androID:layout_alignParentStart="true"
androID:layout_centerVertical="true"
androID:layout_marginStart="20dp"
androID:ID="@+ID/thumbnail"/>
<TextVIEw
androID:layout_wIDth="wrap_content"
androID:layout_height="wrap_content"
androID:layout_centerHorizontal="true"
androID:layout_alignParenttop="true"
androID:layout_margintop="10dp"
androID:ID="@+ID/name"/>
<TextVIEw
androID:layout_wIDth="wrap_content"
androID:layout_height="wrap_content"
androID:ID="@+ID/desc"
androID:layout_toEndOf="@+ID/thumbnail"
androID:layout_marginStart="20dp"
androID:layouT_Below="@+ID/name"/>
</relativeLayout>
</androIDx.cardvIEw.Widget.CardVIEw>
</relativeLayout>
RecyclerVIEw 适配器：
class RecyclerAdapter : RecyclerVIEw.Adapter<RecyclerAdapter.VIEwHolder>() {
lateinit var ctx:Context
lateinit var superHeroes:List<SuperHeroe>
fun RecyclerAdapter(ListaHeroes:List<SuperHeroe>,ctx:Context){
this.superHeroes=ListaHeroes
this.ctx=ctx
}
overrIDe fun onCreateVIEwHolder(parent: VIEwGroup,vIEwType: int): VIEwHolder {
val lay@R_607_9981@nflater = Lay@R_607_9981@nflater.from(parent.context)
return VIEwHolder(lay@R_607_9981@nflater.inflate(R.layout.superhero_layout,parent,falsE))
}
overrIDe fun onBindVIEwHolder(holder: RecyclerAdapter.VIEwHolder,position: int) {
val item = superHeroes.get(position)
holder.bind(item,ctX)
}
overrIDe fun getItemCount(): Int {
return superHeroes.size
}
class VIEwHolder(vIEw: VIEw) : RecyclerVIEw.VIEwHolder(vIEw) {
val superheroname = vIEw.findVIEwByID(R.ID.Name) as TextVIEw
val desc = vIEw.findVIEwByID(R.ID.desc) as TextVIEw
val avatar = vIEw.findVIEwByID(R.ID.thumbnail) as ImageVIEw
fun bind(superhero:SuperHeroe,context: Context){
superheroname.text = superhero.nombre
desc.text = superhero.desc
loadUrl(superhero.imagen,avatar,context)
}
fun loadUrl(url: String,target:ImageVIEw,ctx:Context) {
println(url)
PiCasso.with(ctX).load(url).into(target)
}
}
}
毕加索的版本是：
implementation 'com.squareup.piCasso:piCasso:2.5.2'
ImageVIEw 中没有加载任何图像，但我在 loadUrl 函数中添加了一个日志，如果我点击链接，图像会显示在我的浏览器中。其余元素（名称和描述）显示正确。我做错了什么？
谢谢。
您是否在清单中定义了互联网权限？ 像这样，
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
<!-- JS,Popper.js,and jQuery -->
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaizap3H66lZH81PoYlFhbGU+6BZP6G7niu735Sk7lN" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script>
<div class="container">
<div class="row">
<form class="bg-dark col-sm-6 py-3">
<div class="form-group row">
<label for="id" class="col-sm-3 col-md-4 col-form-label text-white">id</label>
<div class="col-sm-9 col-md-8">
<input id="id" name="id" type="text" class="form-control">
</div>
</div>
<div class="form-group row">
<div class="col offset-sm-3 offset-md-4">
<div class="d-flex justify-content-between">
<button type="button" class="btn btn-priMary">A</button>
<button type="button" class="btn btn-warning">B</button>
<button type="button" class="btn btn-priMary">C</button>
<button type="button" class="btn btn-danger">D</button>
<button type="button" class="btn btn-info">E</button>
</div>
</div>
</div>
<div class="form-group row">
<div class="col offset-sm-3 offset-md-4">
<div class="d-flex justify-content-between vertical-mobile">
<button type="button" class="btn btn-priMary">A</button>
<button type="button" class="btn btn-warning">B</button>
<button type="button" class="btn btn-priMary">C</button>
<button type="button" class="btn btn-danger">D</button>
<button type="button" class="btn btn-info">E</button>
</div>
</div>
</div>
<div class="form-group row">
<div class="col offset-sm-3 offset-md-4">
<div class="btn-group custom-btn-group">
<button type="button" class="btn btn-priMary">A</button>
<button type="button" class="btn btn-warning">B</button>
<button type="button" class="btn btn-priMary">C</button>
<button type="button" class="btn btn-danger">D</button>
<button type="button" class="btn btn-info">E</button>
</div>
</div>
</div>
</form>
</div>
</div>或者也检查网络安全配置：-
您可以尝试任何选项
1. 尝试使用“https://”而不是“http://”来访问 URL
2. 创建文件 res/xml/network_security_config.xml -
<uses-permission android:name="android.permission.INTERNET" />
将此文件添加到清单中的应用程序标签下，
<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<domain-config cleartextTrafficPermitted="true">
</domain-config>
</network-security-config>
3. 使用 usesCleartextTraffic
像这样在清单中的应用程序标签下添加这个，
<application
android:networkSecurityConfig="@xml/network_security_config">
</application>
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