1 ABAddressBookRef abRef = ABAddressBookCreateWithOptions(NULL, NULL);
2 if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusNotDetermined) {
3 ABAddressBookRequestAccessWithCompletion(abRef, ^(bool granted, CFErrorRef error) {
4 if (granted) {
5 ContactListViewController *contactListViewController = [[ContactListViewController alloc]init];
6 [self.navigationController pushViewController:contactListViewController animated:YES];
7 }
8 });
9 }else if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusAuthorized){
10 ContactListViewController *contactListViewController = [[ContactListViewController alloc]init];
11 [self.navigationController pushViewController:contactListViewController animated:YES];
12 }else{
13 UIAlertController * tipAert = [UIAlertController alertControllerWithTitle:@"提示" message:@"请先允许访问通讯录" preferredStyle:(UIAlertControllerStyleAlert)];
14 UIAlertAction *v1 = [UIAlertAction actionWithTitle:@"取消" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction * _Nonnull action) {
15 }];
16 [tipAert addAction:v1];
17 UIAlertAction *v2 = [UIAlertAction actionWithTitle:@"前往" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction * _Nonnull action) {
18 [[UIApplication sharedApplication]openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
19 }];
20
21 [tipAert addAction:v2];
22 [self presentViewController:tipAert animated:YES completion:nil];
23 }
24 if (abRef) {
25 CFRelease(abRef);
26 }
27