IOS (Personal privacy wallet call System TouchID fingerprint lock verification)

//

Viewcontroller.m

TouchID Fingerprint Verification

//

Created by Apple on 16/9/18.

copyright©2016 year Apple. All rights reserved.

//

#import "ViewController.h"

#import "HomeViewController.h"//The view controller to jump to after successful jump

#import <localauthentication/localauthentication.h>//Import the class library required for TouchID

#import <sys/utsname.h> // access to the class library required for basic information on the device

@interface viewcontroller ()

@end

@implementation Viewcontroller

-(void) viewdidload {

[Super viewdidload];

[self touchID];

}

-(void) Touchesbegan: (nsset<uitouch *> *) touches withevent: (uievent *) Event

{

// call TouchID will execute this method, there is a need to implement some additional functions

}

-(void) TouchID {

lacontext *context = [[lacontext alloc] init];

nserror *error = nil;

/// first step to determine if Touch ID is supported or if the machine has entered a fingerprint

if ([Context canevaluatepolicy:lapolicydeviceownerauthenticationwithbiometrics error: &error]) {

[Context EvaluatePolicy:lapolicydeviceownerauthenticationwithbiometrics localizedreason: @ " Please verify existing fingerprint " reply: ^ (BOOL success, nserror * _nullable error) {

if (error) {

NSLog(@ " verification failed "); //The system will automatically give the error prompt

}Else{

dispatch_async(dispatch_get_main_queue(), ^{

// fingerprint verification after successful jump

homeviewcontroller *home = [[homeviewcontroller alloc] init];

[self presentviewcontroller: Home animated:YES completion:nil];

});

}

}];

}Else {

// determine if the real machine is running

if (self. Issimulator) {

[[[uialertview alloc Initwithtitle:@ " hint " Span class= "S1" >message:@ " please test ~" delegate:nil Cancelbuttontitle:@ " good " otherbuttontitles:nil Span class= "S6" >nil show;

}Else{

[[[uialertview alloc Initwithtitle:@ " hint " Span class= "S1" >message:@ " not supported touch id~" Span class= "S7" > delegate:nil cancelbuttontitle:@ " good " otherbuttontitles:nil Span class= "S6" >nil show;

}

}

}

determine if the current device supports TouchID functionality

-(BOOL) issimulator{

struct utsname systemInfo;

uname(&systeminfo);

nsstring *devicemachine = [nsstring stringwithcstring: SystemInfo. Machine encoding:nsutf8stringencoding];

if ([Devicemachine isequaltostring:@ "i386"] | | [Devicemachine isequaltostring:@ "x86_64"]) {

return YES;

}

return NO;

}

-(void) didreceivememorywarning {

[Super didreceivememorywarning];

//Dispose of any resources, can be recreated.

}

@end

IOS (Personal privacy wallet call System TouchID fingerprint lock verification)