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December 11, 2015 07:38
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SlideTransformer I'm using for a presentation, it scales the slides down smoothly by the scaleFactor given in the constructor. @TargetApi set to Honeycomb for lint, I haven't tested on Gingerbread yet and it may need tweaking. Instantiate after setting your adapter for the ViewPager with: mViewPager.setPageTransformer(true, new SlideTransformer(…
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/** | |
* {@link android.support.v4.view.ViewPager.PageTransformer} to scale pages | |
* as they are slid left / right. | |
* | |
* @author michaelseifollahi | |
*/ | |
@TargetApi(Build.VERSION_CODES.HONEYCOMB) | |
private class SlideTransformer implements PageTransformer { | |
private final float fScaleFactor; | |
/** | |
* Constructor. | |
* | |
* @param scaleFactor float representing the scale amount to reduce the | |
* {@link android.view.View} by. | |
*/ | |
public SlideTransformer(float scaleFactor) { | |
super(); | |
fScaleFactor = scaleFactor; | |
} | |
@Override | |
public void transformPage(View page, float position) { | |
if (position >= 0) { | |
float scale = 1 - (fScaleFactor * position); | |
page.setScaleX(scale); | |
page.setScaleY(scale); | |
} | |
} | |
} |
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