1:添加LocalAuthentication.framework框架
2:实现过程
#import "ViewController.h"
#import <LocalAuthentication/LAContext.h>
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
LAContext *myContext = [[LAContext alloc]init];
myContext.localizedFallbackTitle = @"忘记密码";
NSError *error = nil;
NSString *myLocalizedReasonString = @"请输入指纹";
if ([myContext canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
[myContext evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics
localizedReason:myLocalizedReasonString
reply:^(BOOL success, NSError *error) {
if (success) {
NSLog(@"success");
} else {
// User did not authenticate successfully, look at error and take appropriate action
NSLog(@"did not authenticate successfully");
}
}];
} else {
// Could not evaluate policy; look at authError and present an appropriate message to user
NSLog(@"Could not evaluate policy");
}
}
