iOS Add fingerprint recognition

The IOS 8 SDK exposes Touch ID fingerprinting to developers, allowing the app to authenticate users locally.

You can use your fingerprint to verify your identity in just 2 steps:

1. Check if Touch ID is available.

2. Obtain fingerprint verification results.

1Lacontext *mycontext =[[Lacontext alloc] init];2     if([Mycontext canevaluatepolicy:lapolicydeviceownerauthenticationwithbiometrics Error:nil]) {3[Mycontext evaluatepolicy:lapolicydeviceownerauthenticationwithbiometrics Localizedreason:@"Please verify the fingerprint"reply:^ (BOOL success, Nserror *_nullable Error) {4             if(Success) {5NSLog (@"Verify through!");6}Else{7NSLog (@"validation failed!");8             }9         }];Ten}Else{ OneNSLog (@"cannot use fingerprint verification!"); A}

iOS Add fingerprint recognition