iOS 第一次安裝應用，拒絕相機呼叫，頁面卡死的解決方案
void (^allowBlock)() = ^{
UIImagePickerController *imagePicker = [[UIImagePickerControlleralloc] init];
imagePicker.delegate = self;
imagePicker.allowsEditing = YES;
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
if (iOS8) {
imagePicker.
}
UIViewController *ctl = [[[UIApplicationsharedApplication] windows]lastObject].rootViewController;
[ctl presentViewController:imagePicker animated:YEScompletion:nil];
};
NSString *mediaType = AVMediaTypeVideo;//讀取媒體型別
AVAuthorizationStatus authStatus = [AVCaptureDeviceauthorizationStatusForMediaType:mediaType];//讀取裝置授權狀態
if (authStatus == AVAuthorizationStatusNotDetermined) {
[AVCaptureDevicerequestAccessForMediaType:AVMediaTypeVideocompletionHandler:^(BOOL granted) {
dispatch_async(dispatch_get_main_queue(), ^{
if (granted) {
//第一次使用者接受
allowBlock();
}else{
//使用者拒絕
showAlert(@"已拒絕授權，開啟相機失敗");
}
});
}];
return;
}
if(authStatus == AVAuthorizationStatusRestricted || authStatus == AVAuthorizationStatusDenied){
showAlert(@"相機許可權受限,請在設定中啟用");
return;
}
allowBlock();