Access same instance of app from two devices while on the go - General Questions and Answers

Me and my friend both need to access the same instance of an app at the same time. We can not just both install the app, as we both need access to the exact same instance, account, etc. We may be at different locations, yet we still want to access the app. Both of us occasionally switch off our phones, and the other one of us may need access to the app while the other person has their phone off.
We both have Android phones. We also have a cheap third Android device that we do not use.
So:
Device 1: My device
Device 2: Friend's device
Device 3: Cheap device not currently in use.
What I am thinking about doing is installing the app on Device 3, and then leaving it at home, with the app always running, connected to WiFi and power. I guess we could then use some remote access software to access the app wherever we are.
My priorities are that accessing the app should be as simple as possible. I do not want to go login screens, authorisations, etc. every time I access it. Ideally, it should just be an icon on the home screen to click on, and preferably I should just get straight into the app. If that is not possible, then at least it should be as quick as possible with the minimum amount of steps required for access.
We do not require remote control, only remote viewing. However, remote control would also be nice.
We can use root, Xposed Framework, Magisk modules and whatever may be needed.

It would all depend on your app. If it can be run on the device and access remote data (via 'mount' as an FTP device, NFS, or other file sharing) then that would be good.
Otherwise what you want is to have a remote control app for Device 3 (where the app and data live). Go to No-IP.com and get a free DDNS entry so you can point it to your network. Have the DMZ host be configured to be Device 3 (you'll have to assign a static IP address to the device). Then you use the client software to access the server (device 3) so you can use your App. Otherwise, without knowing the abilities of your app, and its limitations, there would not be a clean way to do what you want.
If you are using the same app on both machines and having it to point to one set of data, then a networked folder would be best.

Related

remote

I have a focus wondering if there's a way to access the phone from a web browser. Like what you can do to the android with a program called remote desktop. Wondering if its possible or not. Tried doing it stock got nowhere gave me page cant be found. Figure i give it a shot anyway
That depends what you mean by "access the phone" but yes, there are web server apps (homebrew only, the official APIs don't allow server sockets for some reason). Root Webserver (linked in my signature) is the newest one, providing full access to the phone's filesystem, but requires elevated permissions (typically from WP7 Root Tools or a fully-unlocked custom ROM) in order to use it.
If you're looking for an app to remotely drive your phone from the PC through a web browser, I don't think anybody has written such a thing yet. I'm not sure why you'd want to do this though, in all honesty.
If you're looking for an actual Remote Dekstop app (as in, an app that uses the Remote Desktop Protocol to allow you to remotely log into and view/control a Windows computer) there are several such apps on the WP7 marketplace. I use one called "RemoteDesktop" (there's no space) and it works quite well.

Is there a way to do wi-fi direct PC to phone?

As the title states, just curious if there is a way to make wi-fi direct work between phone and PC or vice-versa. I know there are wi-fi file explorers, but for s single file or picture is there anything for that?
Im pretty sure your phone comes with an app pre-installed for this, but i use airdroid
ssnapier said:
As the title states, just curious if there is a way to make wi-fi direct work between phone and PC or vice-versa. I know there are wi-fi file explorers, but for s single file or picture is there anything for that?
Click to expand...
Click to collapse
WiFi direct is only for Samsung devices to other select Samsung devices. It doesn't work with my older Samsung TV, but does work with my friend's brand new Samsung TV. AFAIK, it does not work to connect to a PC.
The other on-device options suck out loud (Kies Air, AllShare Play, etc.). They all require additional software to be loaded on the PC and some are dependent on Samsung's server piece to be operational, which goes down like a $5 ***** faced with a stack of hundreds.
If you want to just 'see' the picture or movie on a PC / Laptop / TV, Settings > More Settings > Nearby Devices is tolerable. It's basically DLNA for the phone. ONLY ALLOW the devices on your LAN that you want to share media to. If you choose Allow All and forget to turn it off, it will share it publicly if you connect to WiFi at McDonald's, Starbucks, Library, etc. PCs show up as Windows-Media-Player, and other devices will be SamsungWiselinkPro or SamsungSmarTV, etc.
I'd recommend to use either Airdroid or WiFi File Explorer and save yourself a LOT of headaches to transfer the files to a PC.
wifi file transfer pro
droidstyle said:
wifi file transfer pro
Click to expand...
Click to collapse
Yeah I have had Wifi File Explorer Pro for a good two years and love it, I was just wondering if there was a better option. Based on the responses above I think I will just stick with what I've got!
If you want to transfer files, Kies Air is actually one of the best choices. It's definitely underrated, probably because of the complicated install process, but once you get the hang of it, it's a very streamlined process.
Most file manager apps support Windows shares, so you can transfer stuff that way too. I use AirDroid though mostly. Heck, you can get an FTP app on your Droid and FTP into it from Windows if you like, make sure you change your IP address in Wifi advanced settings to the one you want to use all the time, and map a network drive in Windows to your phone.
why not an FTP server?
search for the "ftp server" from developer "the olive tree" first of all it's super secure since you can add username and password to it (from the settings) so it's safe even at public wifi hotspots and second It's got 4+ stars! COMMON! lol and the 3rd and the best part (I know you were waiting for this ) It's free
you can copy to/from your phone to/from your computer! just open the app and click on the red power button when it turns green you're good to go it gives you an address you need to type that in your explorer (my documents or my computer would be perfect) and your phone's content is there just be careful not to delete anything you don't know
use at your own risk LMAO and I'm not paid to promote it
Air droid is good, but theres a monthly limit. For small amounts of data (I think it's 100MB per month) it's perfect.
Sent from my SCH-I535 using xda app-developers app

Encryption

So I was wondering if there is any way to mask or encrypt mt phones information such as location, ID, data, and any other information that a certain app can pull. The app is called Meraki Systems Manger. My teacher says he could see everything on my device and push apps onto it without my permission (as the app would be a device admin). I just want to prove that I could block the app from everything or almost everything it could do.

Can i set up a cloud server using an android device?

Looking for a way to setup a rooted android device as a dedicated cloud server to allow on the fly storage for phones and computers, is there any way to use a android tv box or android device of any kind as a cloud server to access it over any network away from home with my phone or laptops etc for example? The idea being use a usb external hdd on my ouya that's rooted and access it online somewhere or anywhere using any mobile device or computer trying all manner of ftp apps, but they allways seem to expect you to use a pc to access the ftp address any I try to join via a browser just fail to open to view files, I would have thought it's easily possible and the whole plan is to have a cheap electricity cost android device as the cloud server. Maybe provide others access to set folders to save stuff and access stuff to. I asked tonido cloud if their app supports android as the server not just access as a client it but it doesn't else would have set it up. Meanwhile I'll keep trying apps and looking back here to see if anyone can come up with something thanks in advance.

Unsolved tech...

Hello guys,
I have been searching for answers to some of the tech stuff, but couldn't find them.
Here are some of those questions. Hope some of you would have answers to these. Thanks in advance!
ANDROID
1. How to share files between multi-users on Android 11?
Before Android 11, it was possible to save files inside the Android/ obb folder, and these files were visible for all users on the device. In Android 11, this is no longer working as the 'obb' folder appears to be exclusive to each user.
I know this is possible via USB OTG or a cloud service, but is there a solution without these?
2. How to copy/ backup game data for non-rooted devices?
Helium Backup doesn't seem to work. I have played a game for long on my Mediapad, and I would like to copy that game to my phone. Unfortunately, my Mediapad is not rooted and losing all that game progress has become a nightmare. I have written to the app developer to provide some sort of backup using either Google Play Games or social media integration like Facebook/ Twitter, but haven't received any response.
3. How to force apps (esp. file managers & gallery apps) to use in-app media viewer without changing system default.
For example, I may use the stock gallery app as default for viewing media. But if I am using another gallery app or a file manager that is capable of viewing media files using its own media viewer, I would rather want it use it than open the default app. Is there a way to do it?
4. Replace stock file manager (a system app) with another app from Google Play Store or other sources. Is this possible?
I am not asking how to convert a user app into system app. I know that part. I tried replacing the apk file of the stock file manager with a 3rd party apk, even renamed it, but it didn't work.
5. Extract a system app from one device and install it on another device without root. Is this possible?
I have tried it, but apk installation fails. For example, Samsung Gallery app on OnePlus phones.
iOS
1. How to install .ipa (iPhone app) on an iPhone (not jail-broken) without a laptop (iTunes)?
2. Is it possible to have SFTP server for iPhone?
All Operating Systems
1. How to provide LAN only access for non-rooted devices as well as in Windows & iOS?
For rooted devices, we have apps like AFWall+ that can do it. But is there a way to do it for devices without root, as well as for Windows and iOS?
For non-rooted devices, we have apps like Netguard that support 'Allow LAN access' whilst blocking internet access.
Are there any alternatives and solutions for other platforms?
2. How safe is it to enter login credentials in an app to allow it access to network drives?
I use several apps (on various platforms) to connect to my laptop over SMB. This requires me to provide the app with my Windows Login Credentials, which is a Microsoft account. Am I risking my account by providing this info to the app? Is it safe to enter login credentials of cloud services in file manager apps?
Just bumping this thread as it seems to have been lost/ unnoticed.
@Ultramanoid can you answer some of these?
Sridhar Ananthanarayanan said:
@Ultramanoid can you answer some of these?
Click to expand...
Click to collapse
Can't help much, sorry. As to Android, some notes :
1. Never have used an OEM / Google's version of Android, or anything other than rooted single-user systems.
2. In addition to the previous answer, I'm not a gamer.
3. I usually don't ever set defaults with some rare exceptions, so I am always given a choice of what I want to use to handle a file. It may vary depending on many things; I may want to edit an SVG file as text, or view it as an image, for instance. There are applications / services that will intercept intents to allow you to do this sort of thing as well, but I can't recommend a specific one, never use them myself.
4. Possible, but will break Android as by now the system requires it as a file picker in many instances without recognizing alternatives and developers of most applications do expect it as well and their services will not work without it. Don't do it. With recent Android storage changes, including the scoped storage debacle, this is not a viable option anymore.
5. Depends, but not likely as a general rule, specially for OEM garbage, which relies on their own proprietary modifications of Android, their libraries, frameworks, et al. You'd have to carry those over to the destination too, which may not even be possible. Use OEM-independent and not Google Services reliant applications. ( Edit : you'll find some of those applications built to install on all devices here on XDA by single developers, "SONY camera for all devices" and that sort of thing, not recommended anyway, not well supported or long-lived experiments. )
Ultramanoid said:
Can't help much, sorry. As to Android, some notes :
1. Never have used an OEM / Google's version of Android, or anything other than rooted single-user systems.
2. In addition to the previous answer, I'm not a gamer.
3. I usually don't ever set defaults with some rare exceptions, so I am always given a choice of what I want to use to handle a file. It may vary depending on many things; I may want to edit an SVG file as text, or view it as an image, for instance. There are applications / services that will intercept intents to allow you to do this sort of thing as well, but I can't recommend a specific one, never use them myself.
4. Possible, but will break Android as by now the system requires it as a file picker in many instances without recognizing alternatives and developers of most applications do expect it as well and their services will not work without it. Don't do it. With recent Android storage changes, including the scoped storage debacle, this is not a viable option anymore.
5. Depends, but not likely as a general rule, specially for OEM garbage, which relies on their own proprietary modifications of Android, their libraries, frameworks, et al. You'd have to carry those over to the destination too, which may not even be possible. Use OEM-independent and not Google Services reliant applications. ( Edit : you'll find some of those applications built to install on all devices here on XDA by single developers, "SONY camera for all devices" and that sort of thing, not recommended anyway, not well supported or long-lived experiments. )
Click to expand...
Click to collapse
Thanks very much. But I wish you answered the last 2 questions as well.
If time permits, would you be interested in telling us how you use your phone? I mean which device, which OS and what apps you use. I would like to give that a try (on a spare device) and see if it is possible for me to live without Google.
Sridhar Ananthanarayanan said:
Thanks very much. But I wish you answered the last 2 questions as well.
If time permits, would you be interested in telling us how you use your phone? I mean which device, which OS and what apps you use. I would like to give that a try (on a spare device) and see if it is possible for me to live without Google.
Click to expand...
Click to collapse
Didn't answer because it won't be helpful.
As to the 1st, I don't use LAN, and I don't keep data in any device or computer unless in use. External independent encrypted storage to be used wherever, whenever, independent of device, cables if needed.
As to the second, it's a matter of common sense, being informed of vulnerabilities and aware of reputation, and trust. Would you trust Chrome or Mozilla with data if you're online banking ? Seems reasonable -- but be aware of major vulnerabilities that may be going on. Would you trust an application released yesterday by a single developer for the same ? Probably not a good idea.
Finally, I doubt what I use and how I use it would be acceptable for you, or most people. In essence you could : Install latest firmware, wipe device, install latest security patched Lineage build for it, remove vendor / Lineage applications, get full root, remove anything you don't need or use which could have vulnerabilities; frameworks, libraries, binaries, etc ( Bluetooth, SMS, Android system-wide downloader, system-wide WebView, NFC, and on and on .. ), install your own binaries, fonts, hosts file, and applications where appropriate ( /bin /etc et al ), install Termux and all Linux packages required for your use, everything open source whenever possible, and stay away from any Google services / Play / applications with ANY trackers, analytics, data mining or even crash report capabilities; zero tolerance. Internet permission only for a secure web browser -- and terminal if / when needed. Half of what I do or use goes through terminal to be honest. In short, for me an Android device is a full Linux laptop replacement with added perks : Always on and on me, camera, GPS, pedometer, unlimited LTE data, and emergency calls for medics / police. ( Edit : And Japanese EEW alarm of course ! Only notification I use. We learned our lesson well in 2011. )
You can use ApkExport to extract any apk including system apks. I've transferred apks between other devices devices with it.
Never had need of doing that though with a system apk.

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