RecycerView中的Admob原生广告在加载前显示空白

Question

我已经在我的应用程序中实现了Admob原生广告。它被放置在我的回收器视图中每4个项目显示一次。

问题是：在广告被显示之前，一个空白会显示大约3到5秒，直到广告被加载。我需要帮助，以删除这个空白空间和加载广告之间的回收器视图项目只有当本机广告加载完全。我在下面附上了2张截图：显示广告之前和之后。

适配器代码如下所示。

public class MovieAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private Context mContext;
private List<Movie> mList;
private LayoutInflater mLayoutInflater;

private static final int DEFAULT_VIEW_TYPE = 1;
private static final int NATIVE_AD_VIEW_TYPE = 2;


public MovieAdapter(Context c, List<Movie> l) {
    this(c, l, true, true);
}

public MovieAdapter(Context c, List<Movie> l, boolean wa, boolean wcl) {
    mContext = c;
    mList = l;

    mLayoutInflater = (LayoutInflater) c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

}

@Override
public int getItemViewType(int position) {

        if (position!=0 && position%4 == 0) {
            return NATIVE_AD_VIEW_TYPE;
        }
        return DEFAULT_VIEW_TYPE;
}

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
    View v;
    switch (viewType) {
        default:
            v = mLayoutInflater.inflate(R.layout.item_movie_card, viewGroup, false);
            return new MyViewHolder(v);
        case NATIVE_AD_VIEW_TYPE:
            v = mLayoutInflater.inflate(R.layout.list_item_native_ad, viewGroup, false);
            return new NativeAdViewHolder(v);
    }
}

@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
    if (!(holder instanceof MyViewHolder)) {
        return;
    }
    MyViewHolder myViewHolder = (MyViewHolder) holder;

    myViewHolder.tvName.setText(mList.get(position).getName());
    myViewHolder.tvGenre.setText(mList.get(position).getGenre());


    ControllerListener listener = new BaseControllerListener() {
        @Override
        public void onFinalImageSet(String id, Object imageInfo, Animatable animatable) {
            super.onFinalImageSet(id, imageInfo, animatable);
        }

        @Override
        public void onFailure(String id, Throwable throwable) {
            super.onFailure(id, throwable);
        }

        @Override
        public void onIntermediateImageFailed(String id, Throwable throwable) {
            super.onIntermediateImageFailed(id, throwable);
        }

        @Override
        public void onIntermediateImageSet(String id, Object imageInfo) {
            super.onIntermediateImageSet(id, imageInfo);
        }

        @Override
        public void onRelease(String id) {
            super.onRelease(id);
        }

        @Override
        public void onSubmit(String id, Object callerContext) {
            super.onSubmit(id, callerContext);
        }
    };

    int w = 0;
    if (myViewHolder.ivMovie.getLayoutParams().width == FrameLayout.LayoutParams.MATCH_PARENT
            || myViewHolder.ivMovie.getLayoutParams().width == FrameLayout.LayoutParams.WRAP_CONTENT) {

        Display display = ((Activity) mContext).getWindowManager().getDefaultDisplay();
        Point size = new Point();
        display.getSize(size);

        try {
            w = size.x;
        } catch (Exception e) {
            w = display.getWidth();
        }
    }

    Uri uri = Uri.parse(DataUrl.getUrlCustom(mList.get(position).getUrlPhoto(), w));
    DraweeController dc = Fresco.newDraweeControllerBuilder()
            .setUri(uri)
            .setTapToRetryEnabled(true)
            .setControllerListener(listener)
            .setOldController(myViewHolder.ivMovie.getController())
            .build();

    myViewHolder.ivMovie.setController(dc);

}

    @Override
    public int getItemCount() {
        return mList.size();
    }


    public void addListItem(Movie c, int position) {
        mList.add(c);
        notifyItemInserted(position);
    }

    public void removeListItem(int position) {
        mList.remove(position);
        notifyItemRemoved(position);

    }


public class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
    public SimpleDraweeView ivMovie;
    public TextView tvName;
    public TextView tvGenre;
    public ImageButton imageButton;

    public MyViewHolder(View itemView) {
        super(itemView);

        ivMovie = (SimpleDraweeView) itemView.findViewById(R.id.iv_car);
        tvName = (TextView) itemView.findViewById(R.id.tv_model);
        tvGenre = (TextView) itemView.findViewById(R.id.tv_brand);
        imageButton = (ImageButton) itemView.findViewById(R.id.like_button);
    }


    @Override
    public void onClick(View v) {


    }
}

public class NativeAdViewHolder extends RecyclerView.ViewHolder {

    private final NativeExpressAdView mNativeAd;

    public NativeAdViewHolder(final View itemView) {

    super(itemView);
    mNativeAd = (NativeExpressAdView) itemView.findViewById(R.id.nativeAd);
    mNativeAd.setAdListener(new AdListener() {
        @Override
        public void onAdLoaded() {
            super.onAdLoaded();
        }

        @Override
        public void onAdClosed() {
            super.onAdClosed();
        }

        @Override
        public void onAdFailedToLoad(int errorCode) {
            super.onAdFailedToLoad(errorCode);
        }

        @Override
        public void onAdLeftApplication() {
            super.onAdLeftApplication();

        }

        @Override
        public void onAdOpened() {
            super.onAdOpened();

        }
    });

    AdRequest adRequest = new AdRequest.Builder()
            .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
            .build();

    mNativeAd.loadAd(adRequest);
        }
    }
}

布局文件-native_ad.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="132dp">

<com.google.android.gms.ads.NativeExpressAdView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/nativeAd"
    ads:adSize="FULL_WIDTHx132"
    ads:adUnitId="@string/native_ad_unit"/>

Answer 1

如果不是动态添加，可以将视图的可见性设置为未加载

 public NativeAdViewHolder(final View itemView) {
    super(itemView);
     itemView.setVisibility(View.GONE); 
    mNativeAd = (NativeExpressAdView) itemView.findViewById(R.id.nativeAd);
    mNativeAd.setAdListener(new AdListener() {
        @Override
        public void onAdLoaded() {
            super.onAdLoaded();
            itemView.setVisibility(View.VISIBLE);
        }

        @Override
        public void onAdClosed() {
            super.onAdClosed();
        }

        @Override
        public void onAdFailedToLoad(int errorCode) {
            super.onAdFailedToLoad(errorCode);
        }

        @Override
        public void onAdLeftApplication() {
            super.onAdLeftApplication();

        }

        @Override
        public void onAdOpened() {
            super.onAdOpened();

        }
    });

同样地，在onadfailedtoload中做为需求，我希望它能帮助你。