// Signature format: 3.0
package androidx.viewpager.widget {

  public abstract class PagerAdapter {
    ctor public PagerAdapter();
    method public void destroyItem(android.view.ViewGroup, int, Object);
    method @Deprecated public void destroyItem(android.view.View, int, Object);
    method public void finishUpdate(android.view.ViewGroup);
    method @Deprecated public void finishUpdate(android.view.View);
    method public abstract int getCount();
    method public int getItemPosition(Object);
    method public CharSequence? getPageTitle(int);
    method public float getPageWidth(int);
    method public Object instantiateItem(android.view.ViewGroup, int);
    method @Deprecated public Object instantiateItem(android.view.View, int);
    method public abstract boolean isViewFromObject(android.view.View, Object);
    method public void notifyDataSetChanged();
    method public void registerDataSetObserver(android.database.DataSetObserver);
    method public void restoreState(android.os.Parcelable?, ClassLoader?);
    method public android.os.Parcelable? saveState();
    method public void setPrimaryItem(android.view.ViewGroup, int, Object);
    method @Deprecated public void setPrimaryItem(android.view.View, int, Object);
    method public void startUpdate(android.view.ViewGroup);
    method @Deprecated public void startUpdate(android.view.View);
    method public void unregisterDataSetObserver(android.database.DataSetObserver);
    field public static final int POSITION_NONE = -2; // 0xfffffffe
    field public static final int POSITION_UNCHANGED = -1; // 0xffffffff
  }

  public class PagerTabStrip extends androidx.viewpager.widget.PagerTitleStrip {
    ctor public PagerTabStrip(android.content.Context);
    ctor public PagerTabStrip(android.content.Context, android.util.AttributeSet?);
    method public boolean getDrawFullUnderline();
    method @ColorInt public int getTabIndicatorColor();
    method public void setBackgroundDrawable(android.graphics.drawable.Drawable!);
    method public void setDrawFullUnderline(boolean);
    method public void setTabIndicatorColor(@ColorInt int);
    method public void setTabIndicatorColorResource(@ColorRes int);
  }

  @androidx.viewpager.widget.ViewPager.DecorView public class PagerTitleStrip extends android.view.ViewGroup {
    ctor public PagerTitleStrip(android.content.Context);
    ctor public PagerTitleStrip(android.content.Context, android.util.AttributeSet?);
    method public int getTextSpacing();
    method public void setGravity(int);
    method public void setNonPrimaryAlpha(@FloatRange(from=0.0, to=1.0) float);
    method public void setTextColor(@ColorInt int);
    method public void setTextSize(int, float);
    method public void setTextSpacing(int);
  }

  public class ViewPager extends android.view.ViewGroup {
    ctor public ViewPager(android.content.Context);
    ctor public ViewPager(android.content.Context, android.util.AttributeSet?);
    method public void addOnAdapterChangeListener(androidx.viewpager.widget.ViewPager.OnAdapterChangeListener);
    method public void addOnPageChangeListener(androidx.viewpager.widget.ViewPager.OnPageChangeListener);
    method public boolean arrowScroll(int);
    method public boolean beginFakeDrag();
    method protected boolean canScroll(android.view.View!, boolean, int, int, int);
    method public void clearOnPageChangeListeners();
    method public void endFakeDrag();
    method public boolean executeKeyEvent(android.view.KeyEvent);
    method public void fakeDragBy(float);
    method public androidx.viewpager.widget.PagerAdapter? getAdapter();
    method public int getCurrentItem();
    method public int getOffscreenPageLimit();
    method public int getPageMargin();
    method public boolean isDragInGutterEnabled();
    method public boolean isFakeDragging();
    method @CallSuper protected void onPageScrolled(int, float, int);
    method public void onRestoreInstanceState(android.os.Parcelable!);
    method public android.os.Parcelable! onSaveInstanceState();
    method public void removeOnAdapterChangeListener(androidx.viewpager.widget.ViewPager.OnAdapterChangeListener);
    method public void removeOnPageChangeListener(androidx.viewpager.widget.ViewPager.OnPageChangeListener);
    method public void setAdapter(androidx.viewpager.widget.PagerAdapter?);
    method public void setCurrentItem(int);
    method public void setCurrentItem(int, boolean);
    method public void setDragInGutterEnabled(boolean);
    method public void setOffscreenPageLimit(int);
    method @Deprecated public void setOnPageChangeListener(androidx.viewpager.widget.ViewPager.OnPageChangeListener!);
    method public void setPageMargin(int);
    method public void setPageMarginDrawable(android.graphics.drawable.Drawable?);
    method public void setPageMarginDrawable(@DrawableRes int);
    method public void setPageTransformer(boolean, androidx.viewpager.widget.ViewPager.PageTransformer?);
    method public void setPageTransformer(boolean, androidx.viewpager.widget.ViewPager.PageTransformer?, int);
    field public static final int SCROLL_STATE_DRAGGING = 1; // 0x1
    field public static final int SCROLL_STATE_IDLE = 0; // 0x0
    field public static final int SCROLL_STATE_SETTLING = 2; // 0x2
  }

  @java.lang.annotation.Inherited @java.lang.annotation.Retention(java.lang.annotation.RetentionPolicy.RUNTIME) @java.lang.annotation.Target(java.lang.annotation.ElementType.TYPE) public static @interface ViewPager.DecorView {
  }

  public static class ViewPager.LayoutParams extends android.view.ViewGroup.LayoutParams {
    ctor public ViewPager.LayoutParams();
    ctor public ViewPager.LayoutParams(android.content.Context!, android.util.AttributeSet!);
    field public int gravity;
    field public boolean isDecor;
  }

  public static interface ViewPager.OnAdapterChangeListener {
    method public void onAdapterChanged(androidx.viewpager.widget.ViewPager, androidx.viewpager.widget.PagerAdapter?, androidx.viewpager.widget.PagerAdapter?);
  }

  public static interface ViewPager.OnPageChangeListener {
    method public void onPageScrollStateChanged(int);
    method public void onPageScrolled(int, float, @Px int);
    method public void onPageSelected(int);
  }

  public static interface ViewPager.PageTransformer {
    method public void transformPage(android.view.View, float);
  }

  public static class ViewPager.SavedState extends androidx.customview.view.AbsSavedState {
    ctor public ViewPager.SavedState(android.os.Parcelable);
    field public static final android.os.Parcelable.Creator<androidx.viewpager.widget.ViewPager.SavedState!>! CREATOR;
  }

  public static class ViewPager.SimpleOnPageChangeListener implements androidx.viewpager.widget.ViewPager.OnPageChangeListener {
    ctor public ViewPager.SimpleOnPageChangeListener();
    method public void onPageScrollStateChanged(int);
    method public void onPageScrolled(int, float, int);
    method public void onPageSelected(int);
  }

}