微信切换界面延时加载的实现方法是优化ViewPager中加载Fragment

用fragment中的setUserVisibleHint这个方法即可。

private boolean hasLoadedOnce = false;   //your boolean field
@Override
public void setUserVisibleHint(booleanisVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (this.isVisible()) {
// we check that the fragment is becomingvisible
if (isVisibleToUser &&!hasLoadedOnce) {
//do something
}
}
}
}