ViewPager+Fragment基本使用方法（转自网络）

@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
if (isVisibleToUser) {
splt splt=new splt();

fzrInfoList = splt.Getqy_fzrxx_splt(id, pas, bh);
if(fzrInfoList==null){
Message m=handler.obtainMessage();
m.what=2;
handler.sendMessage(m);}
else {
fzrInfo=fzrInfoList.get(0);
Message m=handler.obtainMessage();
m.what=1;
handler.sendMessage(m);
}

}
super.setUserVisibleHint(isVisibleToUser);
}