IOS 11.2.6 检测相机权限问题

showActionSheet 菜单栏点击拍照操作，事先检测相机权限，
if(IoA=="1"){
var AVCaptureDevice = plus.ios.importClass("AVCaptureDevice");
var Status = AVCaptureDevice.authorizationStatusForMediaType("vide");
if (3 != Status) {
mui.toast('请在设置中允许使用相机');
return false;
}
}
上面的方法不行，苹果回复
We discovered one or more bugs in your app when reviewed on iPhone running iOS 11.2.6 on Wi-Fi connected to an IPv6 network.

Specifically, your tapping on “拍照,” your app requests users to access Settings to allow camera permission; however, your app does not request access to use’s camera feature.

去点上面的方法，如果没给相册权限，能打开相机，但是无法拍照。能不能在点击拍照后检测有没有权限再打开相机，求代码

HBuilder
9.0.1.201802011934

function getImage() {
// if(IoA=="1"){
// var AVCaptureDevice = plus.ios.importClass("AVCaptureDevice");
// var Status = AVCaptureDevice.authorizationStatusForMediaType("vide");
// if (3 != Status) {
// mui.toast('请在设置中允许使用相机');
// return false;
// }
// }

            var cmr = plus.camera.getCamera();  
            cmr.captureImage(function(p) {   
                plus.io.resolveLocalFileSystemURL(p, function(entry) {   
                    if(IoA=="1")  
                    {  
                        fl="1";  
                    }  
                    else{  
                        fl="1";  
                    }         
                    var path = entry.toLocalURL();    
                    ToZip(path);  
                },    
                function(e) {     
                    console.log(e);  
                });    
            },  
            function(e) {  
                console.log(e);  
            }, {  
                filename: "_doc/camera/",  
            });  
        }  

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