touch id
iPhone的指纹解锁实际很简单的,但是需要8.0以后使用,苹果都给封装好了,在测试下面代码前,记得设置TouchID,下面上代码吧。
-(void)testTouchId
{
NSERROR *error = nil;
if ([self.context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
NSLog(@"支持指纹识别");
[self.context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:@"指纹解锁" reply:^(BOOL success, NSError * _Nullable error) {
if (success) {
NSLog(@"验证成功 刷新主界面");
}else{
NSLog(@"%@",error.localizedDescription);
switch (error.code) {
case LAErrorSystemCancel:
{
NSLog(@"系统取消授权,如其他APP切入");
break;
}
case LAErrorUserCancel:
{
NSLog(@"用户取消验证touch id"); break;
}
case LAErrorAuthenticationFailed:
{
NSLog(@"授权失败"); break;
}
case LAErrorPasscodeNotSet:
{
NSLog(@"系统未设置密码"); break;
}
case LAErrorTouchIDNotAvailable:
{
NSLog(@"设备Touch ID不可用,例如未打开");
break;
}
case LAErrorTouchIDNotEnrolled:
{
NSLog(@"设备Touch ID不可用,用户未录入");
break;
}
case LAErrorUserFallback: {
[[NSOperationqueue mainQueue] addOperationWithBlock:^{ NSLog(@"用户选择输入密码,切换主线程处理"); }];
break;
}
default:
{
[[NSOperationQueue mainQueue] addOperationWithBlock:^{ NSLog(@"其他情况,切换主线程处理"); }];
break;
}
}
}
}];
}else{
NSLog(@"不支持指纹识别");
switch (error.code)
{
case LAErrorTouchIDNotEnrolled:
{
NSLog(@"TouchID is not enrolled");
break;
}
case LAErrorPasscodeNotSet:
{
NSLog(@"A passcode has not been set");
break;
}
default: {
NSLog(@"TouchID not available");
break;
}
}
NSLog(@"%@",error.localizedDescription); }
}
-(LAContext *)context
{
if (!_context) {
_context = [LAContext new];
_context.localizedCanceltitle = @"取消";
}
return _context;
}