I am compiling on SDK 4.03, Samsung Infuse Android 2.2, Support Library for Android 4, and using ViewPager in my app, actual swipe works fine, but when I do
viewPager.setCurrentItem(id); // , or
viewPager.setCurrentItem(id, true);
It does not smooth scroll, but switches views instantly. Although the documentation clearly states that that is the purpose setting the second argument to true. Whats up with this?
This is what i did. I overrode the package-private method smoothScrollTo in ViewPager by putting my own custom subclass in the same package. It was being passed a value of zero, which causes the snapping behavior instead of the smooth scroll.
package android.support.v4.view;
import android.content.Context;
import android.util.AttributeSet;
public class MyViewPager extends ViewPager {
public MyViewPager(Context context) {
super(context);
}
public MyViewPager(Context context, AttributeSet attr) {
super(context, attr);
}
void smoothScrollTo(int x, int y, int velocity) {
super.smoothScrollTo(x, y, 1);
}
}
It worked great, if you want you can calculate and provide actual velocity ISO of just 1.