(创建于2016/11/17)
import java.lang.reflect.Field;
import android.content.Context;
import android.support.v4.view.ViewPager;
import android.view.animation.Interpolator;
import android.widget.Scroller;
/**
* ViewPager 滚动速度设置
*
* @author lyy
*
*/
public class ViewPagerScroller extends Scroller {
private int mScrollDuration = 2000; // 滑动速度
/**
* 设置速度速度
*
* @param duration
*/
public void setScrollDuration(int duration) {
this.mScrollDuration = duration;
}
public ViewPagerScroller(Context context) {
super(context);
}
public ViewPagerScroller(Context context, Interpolator interpolator) {
super(context, interpolator);
}
public ViewPagerScroller(Context context, Interpolator interpolator,
boolean flywheel) {
super(context, interpolator, flywheel);
}
@Override
public void startScroll(int startX, int startY, int dx, int dy, int duration) {
super.startScroll(startX, startY, dx, dy, mScrollDuration);
}
@Override
public void startScroll(int startX, int startY, int dx, int dy) {
super.startScroll(startX, startY, dx, dy, mScrollDuration);
}
public void initViewPagerScroll(ViewPager viewPager) {
try {
Field mScroller = ViewPager.class.getDeclaredField("mScroller");
mScroller.setAccessible(true);
mScroller.set(viewPager, this);
} catch (Exception e) {
e.printStackTrace();
}
}
}
调用
ViewPagerScroller pagerScroller = new ViewPagerScroller(getActivity());
pagerScroller.setScrollDuration(1000);//设置时间,时间越长,速度越慢
pagerScroller.initViewPagerScroll(mViewPager);