Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
495 views
in Technique[技术] by (71.8m points)

iphone - Calling the appropriate setStatusBarHidden per iOS version

Today my app approved, but I got emails from users says it crash. I figured out that

[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation: UIStatusBarAnimationSlide];

Is the problem, Because users have firmware 3.1.x this API is not working and app crash.

So I have replace it with

    if ([[[UIDevice currentDevice] systemVersion] floatValue]>=3.2)
        [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation: UIStatusBarAnimationSlide];
    else 
        [[UIApplication sharedApplication] setStatusBarHidden:YES animated:YES];

My questions...

Is what I did the best solution?

Why XCODE did not warn me that SetStatusBarHidden withAnimation is not in 3.0 while I set my Traget OS firmware 3.0?

Do I have to check on every API to see if it is working with my Target OS?

Thank you

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

I'd recommend you to use the following snipplet of code instead of checking against the version of the os, rather check if a selector is currently available.

if([[UIApplication sharedApplication] respondsToSelector:@selector(setStatusBarHidden: withAnimation:)])
    [[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationFade];
else 
    [[UIApplication sharedApplication] setStatusBarHidden:NO animated:YES];

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...