【移動應用開發(fā)技術】iOS指紋驗證TouchID怎么用

【移動應用開發(fā)技術】iOS指紋驗證TouchID怎么用

第一部分：調用原生服務實現(xiàn)指紋驗證/upload/information/20200623/126/122739.jpg/upload/information/20200623/126/122740.jpg/upload/information/20200623/126/122741.jpg#import

"AppDelegate.h"

#import

"ViewController.h"

@interface

AppDelegate

()

@end

@implementation

AppDelegate

-

(BOOL)application:(UIApplication

*)application

didFinishLaunchingWithOptions:(NSDictionary

*)launchOptions

{

//appdelegate

_window

=

[[UIWindow

alloc]initWithFrame:[UIScreen

mainScreen].bounds];

_window.backgroundColor

=

[UIColor

whiteColor];

[_window

makeKeyAndVisible];

ViewController

*vc

=

[[ViewController

alloc]init];

UINavigationController

*na

=

[[UINavigationController

alloc]initWithRootViewController:vc];

_window.rootViewController

=

na;

return

YES;

}第四步：實現(xiàn)指紋驗證

-canEvaluatePolicy:error:

//-(BOOL)canEvaluatePolicy:(LAPolicy)policy

error:(NSError

*

__autoreleasing

*)error

__attribute__((swift_error(none)));

-evaluatePolicy:localizedReason:reply:

//-

(void)evaluatePolicy:(LAPolicy)policy

localizedReason:(NSString

*)localizedReason

reply:(void(^)(BOOL

success,

NSError

*

__nullable

error))reply;-

(void)viewDidLoad

{

[super

viewDidLoad];

self.title

=

@"TouchIDSimpleDemoOne";

LAContext

*context

=

[[LAContext

alloc]init];

NSError

*error;

NSString

*result

=

@"需要你身份驗證呢";

if

([context

canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics

error:&error])

{

[context

evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics

localizedReason:result

reply:^(BOOL

success,

NSError

*error)

{

if

(success)

{

//驗證成功，主線程處理UI

//這個地方呢就是寫一些驗證成功之后需要做些什么事情的代碼。

NSLog(@"驗證成功");

}

else

{

//以下是一些驗證失敗的原因啥的

NSLog(@"%@",error.localizedDescription);

switch

(error.code)

{

case

LAErrorSystemCancel:

{

NSLog(@"切換到其他APP，系統(tǒng)取消驗證Touch

ID");

//切換到其他APP，系統(tǒng)取消驗證Touch

ID

break;

}

case

LAErrorUserCancel:

{

NSLog(@"用戶取消驗證Touch

ID");

//用戶取消驗證Touch

ID

break;

}

case

LAErrorUserFallback:

{

NSLog(@"用戶選擇輸入密碼");

[[NSOperationQueue

mainQueue]

addOperationWithBlock:^{

//用戶選擇其他驗證方式，切換主線程處理

}];

break;

}

default:

{

NSLog(@"LAErrorAuthenticationFailed，授權失敗");

//授權失敗

[[NSOperationQueue

mainQueue]

addOperationWithBlock:^{

//其他情況，切換主線程處理

}];

break;

}

}

}

}];

}else

{

//不支持指紋識別，LOG出錯誤詳情

switch

(error.code)

{

case

LAErrorTouchIDNotEnrolled:

{

NSLog(@"設備Touch

ID不可用，用戶未錄入");

break;

}

case

LAErrorPasscodeNotSet:

{

NSLog(@"系統(tǒng)未設置密碼");

break;

}

case

LAErrorTouchIDNotAvailable:

{

NSLog(@"設備Touch

ID不可用，例如未打開");

break;

}

default:

{

NSLog(@"系統(tǒng)未設置密碼");

break;

}

}

NSLog(@"%@",error.localizedDescription);

}

}//指紋驗證返回值

typedef

NS_ENUM(NSInteger,

LAError)

{

///

Authentication

was

not

successful,

because

user

failed

to

provide

valid

credentials.

LAErrorAuthenticationFailed

=

kLAErrorAuthenticationFailed,

///

Authentication

was

canceled

by

user

(e.g.

tapped

Cancel

button).

LAErrorUserCancel

=

kLAErrorUserCancel,

///

Authentication

was

canceled,

because

the

user

tapped

the

fallback

button

(Enter

Password).

LAErrorUserFallback

=

kLAErrorUserFallback,

///

Authentication

was

canceled

by

system

(e.g.

another

application

went

to

foreground).

LAErrorSystemCancel

=

kLAErrorSystemCancel,

///

Authentication

could

not

start,

because

passcode

is

not

set

on

the

device.

LAErrorPasscodeNotSet

=

kLAErrorPasscodeNotSet,

///

Authentication

could

not

start,

because

Touch

ID

is

not

available

on

the

device.

LAErrorTouchIDNotAvailable

=

kLAErrorTouchIDNotAvailable,

///

Authentication

could

not

start,

because

Touch

ID

has

no

enrolled

fingers.

LAErrorTouchIDNotEnrolled

=

kLAErrorTouchIDNotEnrolled,

///

Authentication

was

not

successful,

because

there

were

too

many

failed

Touch

ID

attempts

and

///

Touch

ID

is

now

locked.

Passcode

is

required

to

unlock

Touch

ID,

e.g.

evaluating

///

LAPolicyDeviceOwnerAuthenticationWithBiometrics

will

ask

for

passcode

as

a

prerequisite.

LAErrorTouchIDLockout

NS_ENUM_AVAILABLE(10_11,

9_0)

=

kLAErrorTouchIDLockout,

///

Authentication

was

canceled

by

application

(e.g.

invalidate

was

called

while

///

authentication

was

in

progress).

LAErrorAppCancel

NS_ENUM_AVAILABLE(10_11,

9_0)

=

kLAErrorAppCancel,

///

LAContext

passed

to

this

call

has

been

previously

invalidated.

LAErrorInvalidContext

NS_ENUM_AVAILABLE(10_11,

9_0)

=

kLAErrorInvalidContext

}

NS_ENUM_AVAILABLE(10_10,

8_0);第二部分：利用現(xiàn)有的第三方組件實現(xiàn)/upload/information/20200623/126/122742.jpg-

(void)viewDidLoad

{

[super

viewDidLoad];

//初始化

WJTouchID

*touchid

=

[[WJTouchID

alloc]init];

[touchid

startWJTouchIDWithMessage:WJNotice(@"自定義信息",

@"The

Custom

Message")

fallbackTitle:WJNotice(@"",

@"Fallback

Title")

delegate:self];

self.touchID

=

touchid;

}@required

//TouchID驗證成功

-

(void)WJTouchIDAuthorizeSuccess;

//TouchID驗證失敗

-

(void)WJTouchIDAuthorizeFailure;

@optional

//當前設備不支持指紋識別

-

(void)WJTouchIDIsNotSupport;

//當前軟件被掛起取消了授權(如突然來了電話,應用進入前臺)

-

(void)WJTouchIDAuthorizeErrorAppCancel;

//取消TouchID驗證

(用戶點擊了取消)

-

(void)WJTouchIDAuthorizeErrorUserCancel;

//在TouchID對話框中點擊輸入密碼按鈕

-

(void)WJTouchIDAuthorizeErrorUserFallback;

//在驗證的TouchID的過程中被系統(tǒng)取消

例如突然來電話、按了Home鍵、鎖屏...

-

(void)WJTouchIDAuthorizeErrorSystemCancel;

//無法啟用TouchID,設備沒有設置密碼

-

(void)WJTouchIDAuthorizeErrorPasscodeNotSet;

//多次連續(xù)使用Touch

ID失敗，Touch

ID被鎖，需要用戶輸入密碼解鎖

-

(void