沒有互聯網連接時禁用按鈕

Question

當iOS中沒有網絡連接時，如何禁用按鈕？

Answer 1

查看Apple的可達性代碼。

http://developer.apple.com/library/ios/#samplecode/Reachability/Introduction/Intro.html

並像這樣使用它：

Reachability *reachabilityInstance = [[Reachability reachabilityForInternetConnection] retain];
[reachabilityInstance startNotifier];
NetworkStatus networkStatus = [reachabilityInstance currentReachabilityStatus];
BOOL connected = (networkStatus==ReachableViaWiFi || networkStatus==ReachableViaWWAN);

Answer 2

您只需在需要時就隱藏按鈕

[button setHidden:YES];