昨天在公司需求中需要加入指紋解鎖功能
在指紋接受驗證后 ? 回調(diào)會在子線程中 ?因此需要調(diào)用主線程執(zhí)行ui更新 ??
然鵝群里一群人知道卻不告訴我 ? 害的我瞎忙活半天。。。。
代碼如下?
//初始化上下文對象
LAContext* context = [[LAContext alloc] init];
//錯誤對象
NSError* error = nil;
NSString* result = @"通過Home鍵驗證已有手機指紋";
//首先使用canEvaluatePolicy 判斷設(shè)備支持狀態(tài)
if ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
//支持指紋驗證
[context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:result reply:^(BOOL success, NSError *error) {
if (success) {
//驗證成功，主線程處理UI
[mUserdefaults setObject:@"1" forKey:isUseLock];
[mUserdefaults setObject:@"1" forKey:isOpenHand];
[mUserdefaults synchronize];
[SVProgressHUD showSuccessWithStatus:@"開啟成功"];
}
else
{
dispatch_async(dispatch_get_main_queue(), ^{
[mUserdefaults setObject:@"0" forKey:isOpenHand];
_sw.on = NO;
[SVProgressHUD dismiss];
});
NSLog(@"%@",error.localizedDescription);
switch (error.code) {
case LAErrorSystemCancel:
{
NSLog(@"Authentication was cancelled by the system");
//切換到其他APP，系統(tǒng)取消驗證Touch ID
break;
}
case LAErrorUserCancel:
{
NSLog(@"Authentication was cancelled by the user");
//用戶取消驗證Touch ID
break;
}
case LAErrorUserFallback:
{
NSLog(@"User selected to enter custom password");
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
//用戶選擇其他驗證方式，切換主線程處理
}];
break;
}
default:
{
[[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(@"TouchID is not enrolled");
[SVProgressHUD showWithStatus:@"設(shè)備不支持指紋解鎖"];
break;
}
case LAErrorPasscodeNotSet:
{
[SVProgressHUD showWithStatus:@"設(shè)備未設(shè)置指紋解鎖"];
NSLog(@"A passcode has not been set");
break;
}
default:
{
[SVProgressHUD showWithStatus:@"設(shè)備未設(shè)置touchId"];
NSLog(@"TouchID not available");
break;
}
}
NSLog(@"%@",error.localizedDescription);
}
