android - 无法在 RecyclerView 中显示 admob 原生高级广告
问题描述
我想在RecyclerView
这是我在adabter中尝试过的代码
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
return when (viewType) {
ITEM_SONG -> {
val view = LayoutInflater.from(parent.context)
.inflate(R.layout.song_card, parent, false)
SongViewHolder(view)
}
else -> {
val bannerView = LayoutInflater.from(parent.context)
.inflate(R.layout.ad_frame, parent)
AdViewHolder(bannerView)
}
}
}
private fun populateUnifiedNativeAdView(nativeAd: UnifiedNativeAd, adView: UnifiedNativeAdView) {
adView.mediaView = adView.findViewById(R.id.ad_media)
adView.headlineView = adView.findViewById(R.id.ad_headline)
adView.bodyView = adView.findViewById(R.id.ad_body)
adView.callToActionView = adView.findViewById(R.id.ad_call_to_action)
(adView.headlineView as TextView).text = nativeAd.headline
adView.mediaView.setMediaContent(nativeAd.mediaContent)
if (adView.bodyView == null) {
adView.bodyView.visibility = View.INVISIBLE
} else {
adView.bodyView.visibility = View.VISIBLE
(adView.bodyView as TextView).text = nativeAd.body
}
if (adView.callToActionView == null) {
adView.callToActionView.visibility = View.INVISIBLE
} else {
adView.callToActionView.visibility = View.VISIBLE
(adView.callToActionView as TextView).text = nativeAd.callToAction
}
adView.setNativeAd(nativeAd)
}
在 - 的里面onBindViewHolder
ITEM_BANNER -> {
val adViewHolder = holder as AdViewHolder
val parent = adViewHolder.itemView as ViewGroup
val adView = LayoutInflater.from(App.context)
.inflate(R.layout.ad_unified, null) as UnifiedNativeAdView
val builder = AdLoader.Builder(App.context, NATIVE_ID)
.forUnifiedNativeAd { unifiedNativeAd: UnifiedNativeAd? ->
if (unifiedNativeAd != null) {
populateUnifiedNativeAdView(unifiedNativeAd, adView)
parent.removeAllViews()
parent.addView(adView)
}
}
val videoOptions = VideoOptions.Builder()
.setStartMuted(true)
.build()
val adOptions = NativeAdOptions.Builder()
.setVideoOptions(videoOptions)
.build()
builder.withNativeAdOptions(adOptions)
builder.build().loadAd(AdRequest.Builder().build())
}
}
}
在MainActivity
此代码中用于添加FrameLayout
到项目列表
private fun getNativeAds(list: ArrayList<Any>) {
var i = 0
while (i < list.size) {
list.add(i, FrameLayout(this@MainActivity))
i += ITEMS_PER_AD
}
}
我收到这个错误
java.lang.ClassCastException: android.widget.FrameLayout cannot be cast to c.c.a.b.a
at c.c.a.a.a.b(:82)
at androidx.recyclerview.widget.RecyclerView$g.c(:7065)
at androidx.recyclerview.widget.RecyclerView$g.a(:7107)
at androidx.recyclerview.widget.RecyclerView$v.a(:6012)
at androidx.recyclerview.widget.RecyclerView$v.a(:6279)
at androidx.recyclerview.widget.RecyclerView$v.b(:6118)
at androidx.recyclerview.widget.RecyclerView$v.d(:6114)
at androidx.recyclerview.widget.LinearLayoutManager$c.a(:2303)
at androidx.recyclerview.widget.LinearLayoutManager.a(:1627)
at androidx.recyclerview.widget.LinearLayoutManager.a(:1587)
at androidx.recyclerview.widget.LinearLayoutManager.c(:665)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(:4134)
at androidx.recyclerview.widget.RecyclerView.dispatchLayout(:3851)
at androidx.recyclerview.widget.RecyclerView.onLayout(:4404)
at android.view.View.layout(View.java:17564)
at android.view.ViewGroup.layout(ViewGroup.java:5656)
at androidx.constraintlayout.widget.ConstraintLayout.onLayout(:1915)
at android.view.View.layout(View.java:17564)
at android.view.ViewGroup.layout(ViewGroup.java:5656)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17564)
at android.view.ViewGroup.layout(ViewGroup.java:5656)
at androidx.appcompat.widget.ActionBarOverlayLayout.onLayout(:446)
at android.view.View.layout(View.java:17564)
at android.view.ViewGroup.layout(ViewGroup.java:5656)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17564)
at android.view.ViewGroup.layout(ViewGroup.java:5656)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
at android.view.View.layout(View.java:17564)
at android.view.ViewGroup.layout(ViewGroup.java:5656)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at com.android.internal.policy.DecorView.onLayout(DecorView.java:755)
at android.view.View.layout(View.java:17564)
at android.view.ViewGroup.layout(ViewGroup.java:5656)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2422)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2142)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1299)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6558)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:871)
at android.view.Choreographer.doCallbacks(Choreographer.java:683)
at android.view.Choreographer.doFrame(Choreographer.java:619)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:857)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6316)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:872)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:762)
解决方案
请检查您的方法:
getItemViewType(position: Int): Int
它可能不会返回正确的itemView类型
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