1.FragmentActivity与Fragment之间的用法
2.实现ViewPager自动轮换，设置移动的时间
通过反射获取mScrooler这个对象：
Field mScroller;
mScroller = ViewPager.class.getDeclaredField("mScroller");
mScroller.setAccessible(true);
FixedSpeedScroller scroller = new FixedSpeedScroller(advPager.getContext(), new LinearInterpolator());
scroller.setmDuration(500);
mScroller.set(advPager, scroller);
自定义Scroller类设置移动的时间：
public class FixedSpeedScroller extends Scroller {
private int mDuration = 5000;
public FixedSpeedScroller(Context context) {
super(context);
}
public FixedSpeedScroller(Context context, Interpolator interpolator) {
super(context, interpolator);
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public FixedSpeedScroller(Context context, Interpolator interpolator, boolean flywheel) {
super(context, interpolator, flywheel);
}
@Override
public void startScroll(int startX, int startY, int dx, int dy, int duration) {
// Ignore received duration, use fixed one instead
super.startScroll(startX, startY, dx, dy, mDuration);
}
@Override
public void startScroll(int startX, int startY, int dx, int dy) {
// Ignore received duration, use fixed one instead
super.startScroll(startX, startY, dx, dy, mDuration);
}
public void setmDuration(int mDuration) {
this.mDuration = mDuration;
}
}
附件下载：.zip