topic Re: MMPK Storage in ArcGIS AppStudio Questions

MMPK Storage

jaykapalczynski — Wed, 08 May 2019 12:49:24 GMT

Can I install the app on my phone but store the .mmpk files on the external storage card? If so how do I point to this new location?

Re: MMPK Storage

jaykapalczynski — Wed, 08 May 2019 13:13:31 GMT

I am using the Quick Report template....maybe there is a setting in the QuickReportApp.qml file?

Re: MMPK Storage

ErwinSoekianto — Wed, 08 May 2019 21:59:07 GMT

There is no setting the in the Quick Report template to change the default storage location of the mmpk file, but this can be change in the code in QuickReport/controls/MmpkManager.qml ~80

Thank you,

Erwin

Re: MMPK Storage

jaykapalczynski — Thu, 09 May 2019 12:06:46 GMT

Perfect thanks....will give that a whirl....appreciated.

Re: MMPK Storage

jaykapalczynski — Sun, 12 Dec 2021 16:55:56 GMT

So if I am correct I think this is the line that I need to modify

var path = [fileFolder.path, "~"+itemName].join("/");

Re: MMPK Storage

jaykapalczynski — Sun, 12 Dec 2021 09:16:02 GMT

In the MmpkManager.qml file

I added line 13

commented line 15

added/modified line 16

I uploaded and did a make on the project....I downloaded and installed from AGOL and when I went offline it still saved the download to the Phone itself and not the SD Card:

SAMSUNG-SM-J727V\Phone\ArcGIS\AppStudio\Data\QuickReport

Am I missing something?

            onReadyStateChanged: {
                if (readyState === NetworkRequest.DONE ){
                    if(errorCode != 0){
                        loadStatus = 2;
                    } else {
                        var root = JSON.parse(responseText);
                        if(root.type == "Mobile Map Package"){
                            loadStatus = 1;
                            var component = networkRequestComponent;
                            var networkRequest = component.createObject(parent);
                            var url = rootUrl+itemId+"/data";

                            var fileslocation = "/mnt/sdcard/ArcGIS/AppStudio/Data/QuickReport/"

                            //var path = [fileFolder.path, "~"+itemName].join("/");
                            var path = [fileslocation, "~"+itemName].join("/");

                            networkRequest.downloadFile("~"+itemName, url, path, typeNetworkRequest.callback);
                        } else {
                            loadStatus = 2;
                        }
                    }
                }
            }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Re: MMPK Storage

jaykapalczynski — Sun, 12 Dec 2021 09:16:05 GMT

Can I change the code in this location at the top of the MmpkManager.qml ????

    FileFolder{
        id: fileFolder

        //readonly property url storageBasePath: AppFramework.userHomeFolder.fileUrl("ArcGIS/AppStudio/Data")

        readonly property url storageBasePath: "/mnt/sdcard/ext_sd/ArcGIS/AppStudio/Data"


        property url storagePath: subFolder && subFolder>"" ? storageBasePath + "/" + subFolder : storageBasePath

        url: storagePath
        Component.onCompleted: {
            if(!fileFolder.exists){
                fileFolder.makeFolder(storagePath);
            }
            if(!fileFolder.fileExists(".nomedia") && Qt.platform.os === "android"){
                fileFolder.writeFile(".nomedia", "");
            }
        }
    }


‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Re: MMPK Storage

jaykapalczynski — Sun, 12 Dec 2021 09:16:08 GMT

Has anyone done this before.....I got this to work when I changed it to the C:/Temp/Test on my PC....but still cant get it to my phone storage card. The below first two examples show how I did this to my C Drive.

In the MmpkManager.qml file at the bottom if I change the readonly property url to the below nothing happens...

            onReadyStateChanged: {
                if (readyState === NetworkRequest.DONE ){
                    if(errorCode != 0){
                        loadStatus = 2;
                    } else {
                        var root = JSON.parse(responseText);
                        if(root.type == "Mobile Map Package"){
                            loadStatus = 1;
                            var component = networkRequestComponent;
                            var networkRequest = component.createObject(parent);
                            var url = rootUrl+itemId+"/data";

                   // ADDED
                            var fileslocation = "C:/Temp/tEST/QuickReport"
                   // COMMENTED OUT
                            //var path = [fileFolder.path, "~"+itemName].join("/");
                   // MODIFIED THE ABOVE TO THIS
                            var path = [fileslocation, "~"+itemName].join("/");

                            networkRequest.downloadFile("~"+itemName, url, path, typeNetworkRequest.callback);
                        } else {
                            loadStatus = 2;
                        }
                    }
                }
            }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

If I then go to the top of the MmpkManager.qml file and change the below it no uses the C drive and shows the mmpk file through AppStudio when I run the project.

I have to make both changes to get it to work

    FileFolder{
        id: fileFolder

    // COMMENTED OUT
        //readonly property url storageBasePath: AppFramework.userHomeFolder.fileUrl("ArcGIS/AppStudio/Data")
    // MODIFIED TO THIS
        // THIS WORKS ON THE DESKTOP
        readonly property url storageBasePath: "C:/Temp/tEST"

        property url storagePath: subFolder && subFolder>"" ? storageBasePath + "/" + subFolder : storageBasePath

        url: storagePath
        Component.onCompleted: {
            if(!fileFolder.exists){
                fileFolder.makeFolder(storagePath);
            }
            if(!fileFolder.fileExists(".nomedia") && Qt.platform.os === "android"){
                fileFolder.writeFile(".nomedia", "");
            }
        }
    }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

If I make the two above changes it works....I am then trying to modify that so I can use on my Phones SD Card and nothing works....

My question is am on on the right path? Are there any other modifications that I need to make to the code to get this to work?

I then try this...to get to the storage card

At the top of the MmpkManager.qml

readonly property url storageBasePath: "/storage/Test"‍‍‍

At the bottom of the MmpkManager.qml

var fileslocation = "/storage/Test/QuickReport"
var path = [fileslocation, "~"+itemName].join("/");
networkRequest.downloadFile("~"+itemName, url, path, typeNetworkRequest.callback);
‍‍‍‍‍‍‍‍‍‍‍

Any one have any thoughts?

Re: MMPK Storage

ErwinSoekianto — Sun, 12 Dec 2021 09:16:10 GMT

Jay,

The path to external storage card on every device and platform can be varied.

The best way to get the path to the external storage card (if present, I am assuming Android?) is by using the StorageInfo plugin from AppStudio AppFramework.

For example like this,

    StorageInfo {
        id: storageInfo
    }
    
    
    Component.onCompleted: {
        var path, fs, dev;
        var mountedVols = storageInfo.mountedVolumes;
        for (var i = 0; i < mountedVols.length; i++) {
            fs = mountedVols[i].fileSystemType;
            console.log("file system type: ", fs);
            dev = mountedVols[i].device
            console.log("device: ", dev);
            path = mountedVols[i].path;
            console.log("path: ", path);
        }
        
    }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

The path to the storage card normally starts with "/storage/..." or "/mnt/...

Thank you,

Erwin

Re: MMPK Storage

jaykapalczynski — Fri, 17 May 2019 12:29:42 GMT

Fantastic...this uncovered I had the path incorrect the whole time....going to give this a shot....

THANKS

Re: MMPK Storage

ErwinSoekianto — Mon, 20 May 2019 16:23:45 GMT

This is weird. The path seems good, what is the make and model of the phone you are testing? OS version?

Re: MMPK Storage

jaykapalczynski — Mon, 20 May 2019 17:02:17 GMT

Im going nuts here....Its going to be something so small....

Samsung Galaxy J7 V

Model Number: SM-J727V

Hardware Version: J727V.02

Android Version: 8.1.0

Kernal Version 3.18.71

Build Number: M1AJQ.J727VVRS3BSD1

Thanks for your input it is greatly appreciated.

Re: MMPK Storage

jaykapalczynski — Mon, 20 May 2019 19:15:11 GMT

I didn't set : String[] reqPermission = new String[] { Manifest.permission.WRITE_EXTERNAL_STORAGE };

Because I think that setting is already set in the Properties of the Quick Report Template.

Im lost here.

Re: MMPK Storage

jaykapalczynski — Sun, 12 Dec 2021 09:16:16 GMT

I changed my code for a few examples and can write to the Internal Storage like this:

The BELOW examples allow me to write to the internal storage....

BUT I still CANNOT write to the storage card.....uggggggg

Although.....the below shows that the code is working I just cannot get the SC Card Path correct.

Top of the mmpkmanager.qml

       readonly property url storageBasePath: "file:///storage/emulated/0/ArcGIS/AppStudio/Data"

// OR

       readonly property url storageBasePath: "file:///storage/self/primary/ArcGIS/AppStudio/Data"‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Bottom of the mmpkManager.qml

var fileslocation = "/storage/emulated/0/ArcGIS/AppStudio/Data/QuickReport"
                          
// OR 

var fileslocation = "/storage/self/primary/ArcGIS/AppStudio/Data/QuickReport"‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Re: MMPK Storage

ErwinSoekianto — Sun, 12 Dec 2021 09:16:19 GMT

I found another possible “way” to find the path to the external storage of the Android device. It is by using the DocumentDialog plugin sample code posted below. Using this sample if you click on the button, it will open a “document dialog”, please navigate to the SD card, and then choose any file in the SD card. It will print that path to the file in the SD card, and let's see what that path says on your phone.

I tried this on SM-G960U1 running Android 9. The path returns something like this, "/data/user/0/....."

import QtQuick 2.7
import QtQuick.Controls 2.1
 
import ArcGIS.AppFramework 1.0
import ArcGIS.AppFramework.Platform 1.0
 
App {
    id: app
    width: 400
    height: 640
 
    Text {
        id: fileProperties
        anchors.centerIn: parent
        text: "Default"
        font.pointSize: 12
    }
 
    Button {
        text: "document"
        anchors.top: dbgText.bottom
 
        onClicked: {
            console.log("supported ", doc.supported)
 
            if (doc.supported)
            {
                doc.open()
            }
            else
            {
                dbgText.text = "Not Supported"
            }
        }
    }
 
    Component.onCompleted: {
        dbgText.text = app.info.title
    }
 
    DocumentDialog {
        id: doc
 
        onAccepted: {
            console.log("***FILE SELECTED***", filePath)
            file.path = filePath
            fileInfo.filePath = filePath
            process()
        }
 
        onRejected: {
            console.log("Cancelled by user")
        }
    }
 
    FileInfo {
        id: fileInfo
    }
 
    File {
        id: file
    }
 
    function process() {
        var fileDetails = {
            exists : {
                FILE : file.exists,
                FILEINFO : {
                    isFile : fileInfo.isFile,
                    path : fileInfo.filePath,
                    url : fileInfo.url,
                    lastModified : fileInfo.lastModified,
                    isReadable : fileInfo.isReadable,
                    isWritable: fileInfo.isWritable,
                    size: fileInfo.size + " bytes"
                }
            }
        }
 
        fileProperties.text = JSON.stringify(fileDetails, undefined, 2)
    }
 
}‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Re: MMPK Storage

jaykapalczynski — Tue, 21 May 2019 11:56:28 GMT

OK going to have to look at this a bit...I ran the code and saw the button in the top left hand corner. I clicked it and a new page appeared that allowed me to navigate to the SD card. I then went into the DCIM folder and clicked on a jpg image. The screen moved to the side and was left with nothing but a Black screen.....tried this a few times with the same result...I will dive into the code a bit to see if I can modify something.

It works fine when I run it through AppStudio on my desktop but black screen appears on the phone...

Update:

I tried to make the text green to see if that would show up on the black background that I am seeing on the phone....

Not working...

    Text {

        id: fileProperties

        anchors.centerIn: parent

        text: "Default"

        font.pointSize: 12

        color: "Green"

Re: MMPK Storage

ErwinSoekianto — Tue, 21 May 2019 16:15:47 GMT

Jay, the text does not matter, it can printed in the console log. The idea is to show the path when we select a file that is inside the SD card and see the path given.

Re: MMPK Storage

jaykapalczynski — Tue, 21 May 2019 16:18:12 GMT

where do I access the Console.log on my phone? Maybe I am not following sorry

Re: MMPK Storage

ErwinSoekianto — Tue, 21 May 2019 17:38:08 GMT

console log message can be accessed using the AppStudio Console window if you are running the app inside the AppStudio Player. This is just an example, my point is we just want to see the path of the file inside the SD card.

This is weird that it is not showing on your end, I tested this on my end using the AppStudio Player and it is working, and it is showing the path of the file inside the SD card.

Re: MMPK Storage

jaykapalczynski — Tue, 21 May 2019 18:24:22 GMT

If I run this on my desktop in AppStudio Player and then navigate to my phone that is connected to the computer I get this

But this is referencing my C drive which is not on the phone