开启TouchID解锁

NSUserDefaults中记录了此项的值，显示时直接读取设置开关的开与关状态即可

开关事件处理

- (void)addTouchID {

LAContext*context = [[LAContextalloc]init];

__blockNSString*msg =nil;

NSError*error =nil;

BOOLabool;

if(IOS_VERSION<8.0) {

return;

}

//检查touch ID是否可用

abool = [contextcanEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometricserror:&error];

if(abool) {

[contextevaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometricslocalizedReason:NSLocalizedString(@"通过Home键验证已有手机指纹",nil)reply:^(BOOLsuccess,NSError*error) {

if(success) {

[[NSOperationQueuemainQueue]addOperationWithBlock:^{

[[NSUserDefaultsstandardUserDefaults]setBool:YESforKey:@"Unlock"];

[[NSUserDefaultsstandardUserDefaults]synchronize];

[[NSUserDefaultsstandardUserDefaults]setBool:YESforKey:TouchID];

[[NSUserDefaultsstandardUserDefaults]synchronize];

}];

}else{

switch(error.code) {

caseLAErrorUserFallback:

caseLAErrorUserCancel:

caseLAErrorSystemCancel:

default:

[[NSOperationQueuemainQueue]addOperationWithBlock:^{

self.switchView.on=NO;

[[NSUserDefaultsstandardUserDefaults]setBool:self.switchView.onforKey:TouchID];

[[NSUserDefaultsstandardUserDefaults]synchronize];

[[NSOperationQueuemainQueue]addOperationWithBlock:^{

[[NSUserDefaultsstandardUserDefaults]setBool:NOforKey:TouchID];

[[NSUserDefaultsstandardUserDefaults]synchronize];

}];

}];

break;

}

msg = [NSStringstringWithFormat:NSLocalizedString(@"EVALUATE_POLICY_WITH_ERROR",nil)];

}

}];

}

else{

[selfshowAlertViewWithMessage:@"touchID is unavailable!"];

self.switchView.on=NO;

[[NSUserDefaultsstandardUserDefaults]setBool:self.switchView.onforKey:TouchID];

[[NSUserDefaultsstandardUserDefaults]synchronize];

}

}