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copied!<p>Another solution is to update <code>ViewPager</code> height according to the current page height in its <code>PagerAdapter</code>. Assuming that your are creating your <code>ViewPager</code> pages this way:</p> <pre><code>@Override public Object instantiateItem(ViewGroup container, int position) { PageInfo item = mPages.get(position); item.mImageView = new CustomImageView(container.getContext()); item.mImageView.setImageDrawable(item.mDrawable); container.addView(item.mImageView, 0); return item; } </code></pre> <p>Where <code>mPages</code> is internal list of <code>PageInfo</code> structures dynamically added to the <code>PagerAdapter</code> and <code>CustomImageView</code> is just regular <code>ImageView</code> with overriden <code>onMeasure()</code> method that sets its height according to specified width and keeps image aspect ratio.</p> <p>You can force <code>ViewPager</code> height in <code>setPrimaryItem()</code> method:</p> <pre><code>@Override public void setPrimaryItem(ViewGroup container, int position, Object object) { super.setPrimaryItem(container, position, object); PageInfo item = (PageInfo) object; ViewPager pager = (ViewPager) container; int width = item.mImageView.getMeasuredWidth(); int height = item.mImageView.getMeasuredHeight(); pager.setLayoutParams(new FrameLayout.LayoutParams(width, Math.max(height, 1))); } </code></pre> <p>Note the <code>Math.max(height, 1)</code>. That fixes annoying bug that <code>ViewPager</code> does not update displayed page (shows it blank), when previous page has zero height (i. e. null drawable in the <code>CustomImageView</code>), each odd swipe back and forth between two pages.</p>

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