package com.google.android.gms.internal.ads;

import android.view.View;
import android.view.ViewTreeObserver;
import java.lang.ref.WeakReference;

/* JADX INFO: loaded from: classes2.dex */
public final class m30 extends n30 implements ViewTreeObserver.OnScrollChangedListener {

    /* JADX INFO: renamed from: b, reason: collision with root package name */
    public final WeakReference f13940b;

    public m30(View view, ViewTreeObserver.OnScrollChangedListener onScrollChangedListener) {
        super(view);
        this.f13940b = new WeakReference(onScrollChangedListener);
    }

    public final void a(ViewTreeObserver viewTreeObserver) {
        viewTreeObserver.addOnScrollChangedListener(this);
    }

    public final void b(ViewTreeObserver viewTreeObserver) {
        viewTreeObserver.removeOnScrollChangedListener(this);
    }

    @Override // android.view.ViewTreeObserver.OnScrollChangedListener
    public final void onScrollChanged() {
        ViewTreeObserver.OnScrollChangedListener onScrollChangedListener = (ViewTreeObserver.OnScrollChangedListener) this.f13940b.get();
        if (onScrollChangedListener != null) {
            onScrollChangedListener.onScrollChanged();
            return;
        }
        ViewTreeObserver viewTreeObserverZze = zze();
        if (viewTreeObserverZze != null) {
            b(viewTreeObserverZze);
        }
    }
}