Rabbit-R1/original r1/java/sources/androidx/viewpager2/widget/MarginPageTransformer.java

41 lines
1.4 KiB
Java
Raw Normal View History

2024-05-21 16:08:36 -05:00
package androidx.viewpager2.widget;
import android.view.View;
import android.view.ViewParent;
import androidx.core.util.Preconditions;
import androidx.recyclerview.widget.RecyclerView;
import androidx.viewpager2.widget.ViewPager2;
/* loaded from: classes2.dex */
public final class MarginPageTransformer implements ViewPager2.PageTransformer {
private final int mMarginPx;
public MarginPageTransformer(int i) {
Preconditions.checkArgumentNonnegative(i, "Margin must be non-negative");
this.mMarginPx = i;
}
@Override // androidx.viewpager2.widget.ViewPager2.PageTransformer
public void transformPage(View view, float f) {
ViewPager2 requireViewPager = requireViewPager(view);
float f2 = this.mMarginPx * f;
if (requireViewPager.getOrientation() == 0) {
if (requireViewPager.isRtl()) {
f2 = -f2;
}
view.setTranslationX(f2);
return;
}
view.setTranslationY(f2);
}
private ViewPager2 requireViewPager(View view) {
ViewParent parent = view.getParent();
ViewParent parent2 = parent.getParent();
if ((parent instanceof RecyclerView) && (parent2 instanceof ViewPager2)) {
return (ViewPager2) parent2;
}
throw new IllegalStateException("Expected the page view to be managed by a ViewPager2 instance.");
}
}