CODEWITHSUNDEEP
iosuibutton
JosephT
JosephT

Reputation: 865

In code test if UIButtonTypeSystem is defined for iOS6

UIButtonTypeSystem is not defined in iOS 6

if I put the following code will crash the app ?

if(appSetting.iOSVersion>=7){
    photo = [UIButton buttonWithType:UIButtonTypeSystem];
}else{
    photo = [UIButton buttonWithType:UIButtonTypeRoundedRect];
}

How to code to to check if UIButtonTypeSystem defined and prevent crashing?

Upvotes: 0

Views: 156

Answers (1)

freshking
freshking

Reputation: 1864

If you need to support iOS 6 then use UIButtonTypeRoundedRect instead of UIButtonTypeSystem. It will then work under both iOS 6 and 7. In the docs it states:

UIButtonTypeSystem A system style button, such as those shown in navigation bars and toolbars. Available in iOS 7.0 and later.

Upvotes: 1

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