iOS7 权限检查

iOS7之后要求的权限检查, 使用AVAuthorizationStatus进行判断

相机权限代码如下:

AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];

if (authStatus == AVAuthorizationStatusDenied || authStatus == AVAuthorizationStatusRestricted) {

// 相机不被允许或者被限制

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"请在iPhone的“设置-隐私-相机”选项中,允许该APP访问您的相机。" message:nil delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil];

[alert show];

}

else if (authStatus == AVAuthorizationStatusNotDetermined) {

// 没有设置过权限, 会弹出询问窗口

[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {

if (granted) {

// 允许相机权限

}

}];

}

else if (authStatus == AVAuthorizationStatusAuthorized) {

// 允许使用相机

}

相册权限代码如下:

ALAuthorizationStatus authStatus = [ALAssetsLibrary authorizationStatus];

余下代码同相机部分