我创建了一个新闻应用程序,带有标签视图。根据选项卡的位置,必须显示所选类别的片段。发生这种情况,但第一个片段(tech)出现一秒钟,然后当用户切换选项卡时,才会出现另一个类别片段。
对不起,如果我没有正确解释,显示上述问题的视频与here相关联。
我的代码在github上托管了here。
public Fragment getItem(int position) {
if ( position == 0 ) {
TechFragment tech = new TechFragment();
return tech;
} else if ( position == 1 ) {
GeneralFragment general = new GeneralFragment();
return general;
}
else if(position == 2){
SportsFragment sports = new SportsFragment();
return sports;
}
else if(position == 3){
BusinessFragment business = new BusinessFragment();
return business;
}
else if(position == 4){
AppleFragment apple = new AppleFragment();
return apple;
}
else if(position == 5){
BitcoinFragment bitcoin = new BitcoinFragment();
return bitcoin;
}
else if(position == 6){
EntertainmentFragment entertainment = new EntertainmentFragment();
return entertainment;
}
else if(position == 7){
SportFragment sport = new SportFragment();
return sport;
}
else if(position == 8){
HealthFragment health = new HealthFragment();
return health;
}
else{
ScienceFragment science = new ScienceFragment();
return science;
}
}
提前致谢。
试试setOffscreenPageLimit
,以获得更好的用户体验
mViewPager.setAdapter(mSectionsPagerAdapter);
mViewPager.setOffscreenPageLimit(mSectionsPagerAdapter.getCount());