/**
 * Set a {@link PageTransformer} that will be called for each attached page whenever
 * the scroll position is changed. This allows the application to apply custom property
 * transformations to each page, overriding the default sliding look and feel.
 *
 * <p><em>Note:</em> Prior to Android 3.0 the property animation APIs did not exist.
 * As a result, setting a PageTransformer prior to Android 3.0 (API 11) will have no effect.</p>
 *
 * @param reverseDrawingOrder true if the supplied PageTransformer requires page views
 *                            to be drawn from last to first instead of first to last.
 * @param transformer PageTransformer that will modify each page's animation properties
 */
// Compat Here...
public void setPageTransformer(boolean reverseDrawingOrder, PageTransformer transformer) {
    /*if (Build.VERSION.SDK_INT >= 11) */{
        final boolean hasTransformer = transformer != null;
        final boolean needsPopulate = hasTransformer != (mPageTransformer != null);
        mPageTransformer = transformer;
        setChildrenDrawingOrderEnabledCompat(hasTransformer);
        if (hasTransformer) {
            mDrawingOrder = reverseDrawingOrder ? DRAW_ORDER_REVERSE : DRAW_ORDER_FORWARD;
        } else {
            mDrawingOrder = DRAW_ORDER_DEFAULT;
        }
        if (needsPopulate) populate();
    }
}
 

/**
 * Set a {@link PageTransformer} that will be called for each attached page whenever
 * the scroll position is changed. This allows the application to apply custom property
 * transformations to each page, overriding the default sliding look and feel.
 *
 * <p><em>Note:</em> Prior to Android 3.0 the property animation APIs did not exist.
 * As a result, setting a PageTransformer prior to Android 3.0 (API 11) will have no effect.</p>
 *
 * @param reverseDrawingOrder true if the supplied PageTransformer requires page views
 *                            to be drawn from last to first instead of first to last.
 * @param transformer PageTransformer that will modify each page's animation properties
 */
// Compat Here...
public void setPageTransformer(boolean reverseDrawingOrder, PageTransformer transformer) {
    /*if (Build.VERSION.SDK_INT >= 11) */{
        final boolean hasTransformer = transformer != null;
        final boolean needsPopulate = hasTransformer != (mPageTransformer != null);
        mPageTransformer = transformer;
        setChildrenDrawingOrderEnabledCompat(hasTransformer);
        if (hasTransformer) {
            mDrawingOrder = reverseDrawingOrder ? DRAW_ORDER_REVERSE : DRAW_ORDER_FORWARD;
        } else {
            mDrawingOrder = DRAW_ORDER_DEFAULT;
        }
        if (needsPopulate) populate();
    }
}
 

/**
 * Set a {@link ViewPager.PageTransformer} that will be called for each attached page whenever
 * the scroll position is changed. This allows the application to apply custom property
 * transformations to each page, overriding the default sliding look and feel.
 * <p/>
 * <p><em>Note:</em> Prior to Android 3.0 the property animation APIs did not exist.
 * As a result, setting a PageTransformer prior to Android 3.0 (API 11) will have no
 * effect.</p>
 *
 * @param reverseDrawingOrder true if the supplied PageTransformer requires page views
 *                            to be drawn from last to first instead of first to last.
 * @param transformer         PageTransformer that will modify each page's animation properties
 */
public void setPageTransformer(boolean reverseDrawingOrder, PageTransformer transformer) {
    if (Build.VERSION.SDK_INT >= 11) {
        final boolean hasTransformer = transformer != null;
        final boolean needsPopulate = hasTransformer != (mPageTransformer != null);
        mPageTransformer = transformer;
        setChildrenDrawingOrderEnabledCompat(hasTransformer);
        if (hasTransformer) {
            mDrawingOrder = reverseDrawingOrder ? DRAW_ORDER_REVERSE : DRAW_ORDER_FORWARD;
        } else {
            mDrawingOrder = DRAW_ORDER_DEFAULT;
        }
        if (needsPopulate) populate();
    }
}
 

/**
 * 设置切换效果
 * @param b
 * @param rotateTransformer
 */
public void setPageTransformer(boolean b, PageTransformer rotateTransformer)
{
 // TODO Auto-generated method stub
 mViewPager.setPageTransformer(b, rotateTransformer);
}
 

/**
 * 设置切换效果
 * @param b
 * @param rotateTransformer
 */
public void setPageTransformer(boolean b, PageTransformer rotateTransformer)
{
    // TODO Auto-generated method stub
    mViewPager.setPageTransformer(b, rotateTransformer);
}
 

public TransformerItem(Class<? extends PageTransformer> clazz) {
    this.clazz = clazz;
    title = clazz.getSimpleName();
}
 

public TransformerItem(Class<? extends PageTransformer> clazz) {
    this.clazz = clazz;
    title = clazz.getSimpleName();
}
 

public TransformerItem(Class<? extends PageTransformer> clazz) {
    this.clazz = clazz;
    title = clazz.getSimpleName();
}
 

/**
 * 自定义翻页动画效果
 *
 * @param transformer
 * @return
 */
public ConvenientBanner setPageTransformer(PageTransformer transformer) {
    viewPager.setPageTransformer(true, transformer);
    return this;
}
 

/**
 * 自定义翻页动画效果
 *
 * @param transformer
 * @return
 */
public ConvenientBanner setPageTransformer(PageTransformer transformer) {
    viewPager.setPageTransformer(true, transformer);
    return this;
}
 

/**
 * 自定义翻页动画效果
 *
 * @param transformer
 * @return
 */
public ConvenientBanner setPageTransformer(PageTransformer transformer) {
    viewPager.setPageTransformer(true, transformer);
    return this;
}