Google Ads MediaView not correctly resizing height to wrap_content when displaying image

Question

I got an email from AdMob today saying:

Change to native ads policy: Native ads will require MediaView to render the video or main image asset. In a

Answer 1

I was facing the same problem, after trying a lot with trial and error, I found that wrapping <FrameLayout...>(in which you are adding UnifiedNativeAdView) with ScrollView will resolve this problem.

Answer 2

for (int i = 0; i < mediaView.getChildCount(); i++) {
    View view = mediaView.getChildAt(i);
    if (view instanceof ImageView) {
        ((ImageView) view).setAdjustViewBounds(true);
    }
}

This works for me.I tried Richard's answer,But it didn't works well in a RecyclerView.

Answer 3

mediaView.setOnHierarchyChangeListener(new ViewGroup.OnHierarchyChangeListener() {
    @Override
    public void onChildViewAdded(View parent, View child) {
        if (child instanceof ImageView) {
            ImageView imageView = (ImageView) child;
            imageView.setAdjustViewBounds(true);
        }
    }

    @Override
    public void onChildViewRemoved(View parent, View child) {}
});

Answer 4

To ensure that all media are as wide as possible and that they respect a maximum height (so there are no surprises depending on the dimensions of the media).

XML

<com.google.android.gms.ads.formats.MediaView
     android:id="@+id/ad_media"
     android:layout_gravity="center_horizontal"
     android:layout_width="match_parent"
     android:layout_height="wrap_content" />

JAVA

mediaView.setOnHierarchyChangeListener(new ViewGroup.OnHierarchyChangeListener() {
        @Override
        public void onChildViewAdded(View parent, View child) {
            float scale = context.getResources().getDisplayMetrics().density;
            
            int maxHeightPixels = 175;
            int maxHeightDp = (int) (maxHeightPixels * scale + 0.5f);

            if (child instanceof ImageView) { //Images
                ImageView imageView = (ImageView) child;
                imageView.setAdjustViewBounds(true);
                imageView.setMaxHeight(maxHeightDp);

            } else { //Videos
                ViewGroup.LayoutParams params = child.getLayoutParams();
                params.height = maxHeightDp;
                child.setLayoutParams(params);
            }
        }

        @Override
        public void onChildViewRemoved(View parent, View child) {}
    });

Answer 5

If implementing Advanced Native Ads, use "imageScaleType" property of MediaView as suggested here in the official docs https://developers.google.com/admob/android/native/advanced#setting_imagescaletype

adView.mediaView.setImageScaleType(ImageView.ScaleType.CENTER_CROP)

or any other ScaleType as per requirement.