[Question] How to write a app with cloud database - Android Apps and Games

I am very new on making app, and I need to make a app which can read and write to cloud database.
For example, a attendance app for different classes.
Each class has an app and login with class name, then user can select the student's name of the class, then tag in and out as record.
This involve on different structure of database which I am not so familiar with.
Is there any website or tutorial about making android app with cloud database that I can refer to?
Or any simple tool that can create such app?
Thank you...

krizchong said:
I am very new on making app, and I need to make a app which can read and write to cloud database.....
Click to expand...
Click to collapse
I don't use the cloud (other than looking at them LOL!) but, the following Tutorial thread is the only one that I can think of.
https://forum.xda-developers.com/showthread.php?t=3381227
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.

For code-specific questions /samples I'd strongly advice StackExchange instead of xda.
You can usually bump a question there and get an answer with a sample code most of the time as an idea on how to implement it yourself.
Not to advertise SE, just saying. Good luck!

Related

Is there any way to use / induce the camera of a cell phone to read QR Code?

Read a QR Code without making use of any app, plugin or library, in Android. Make reading with only the cell phone.
pgsilva1 said:
Read a QR Code without making use of any app, plugin or library, in Android. Make reading with only the cell phone.
Click to expand...
Click to collapse
You will require an app that will perform this feature.
The following is just a few of them available on the forum.
https://forum.xda-developers.com/showthread.php?t=3617863
https://forum.xda-developers.com/showthread.php?t=3589324
https://forum.xda-developers.com/showthread.php?t=3586995
I can't endorse any of them since I've never needed to use a QR scanner.
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

How to set sms app as default when there is no option to

Hi, there is an app called SynSMS which can't send sms because it's not the default SMS app, how can I get around this?
Yotoprules said:
Hi, there is an app called SynSMS which can't send sms because it's not the default SMS app, how can I get around this?
Click to expand...
Click to collapse
Your best bet is to post this question within the following thread.
https://forum.xda-developers.com/showthread.php?t=2257421
You should also include a little more detail about your device in that thread like... What device it is... LOL!
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE
Ibuprophen said:
Your best bet is to post this question within the following thread.
https://forum.xda-developers.com/showthread.php?t=2257421
You should also include a little more detail about your device in that thread like... What device it is... LOL!
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE
Click to expand...
Click to collapse
Thanks, I posted in that thread
Settings - Apps - Settings - Set default apps - Message, select your message app as default here.

Cannot use bluetooth: "Bluetooth Share keeps stopping"

Bluetooth share on my moto g5 plus doesn't work (Android 7.0). Every time I try to enable bluetooth, the application keeps stopping (crashes at startup).
I tried all of the suggestions I found on the net:
I disabled Google Play Protect
I reset all application settings
I cleared the application cache
I booted to safe mode
I even tried a factory reset
None of these solved the problem.
I got a backtrace but it doesn't look very useful to me (I'll try to attach it).
I noticed an empty /bt_firmware folder – is this normal? Should it contain something?
What could be the cause of this problem? How can I go about debugging it?
As a newbie, I cannot post a link to the backtrace, but it's quite long, so I'm not sure whether I should post it here…
lineinthesand said:
Bluetooth share on my moto g5 plus doesn't work (Android 7.0)...
Click to expand...
Click to collapse
I don't have this device but, the following area of the forum is specific to your device.
https://forum.xda-developers.com/g5-plus
With that stated...
This is a tough one for locating a thread reflecting this specific issue but, I'm hoping that you'll be able to obtain some member guidance within the following thread that's specific to your device.
https://forum.xda-developers.com/showthread.php?t=3593531
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.
Thanks for the hint!
I downloaded potter_NPNS25.137-93-4.zip from there, flashed it using twrp and rebooted. Now bluetooth works again. Even after reinstalling Magisk via twrp.
lineinthesand said:
Thanks for the hint! I downloaded potter_NPNS25.137-93-4.zip from there, flashed it using twrp and rebooted. Now bluetooth works again. Even after reinstalling Magisk via twrp.
Click to expand...
Click to collapse
I'm happy to see that you had located a solution.
I'm not discouraging you from posting a question where you did but, often times, by searching, asking, etc... within the device specific area of the forum, your more likely to obtain something from someone who also has the same device.
Though, sometimes support can be better found elsewhere too...
I just try to help members by pointing the way to, hopefully, get what they need.
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.
Ibuprophen said:
I just try to help members by pointing the way to, hopefully, get what they need.
Click to expand...
Click to collapse
And I'm glad you did. I'm new to Smartphones and the xda forums. This place is huge and kind of intimidating. Often, you have to wade through pages and pages of answers, sorting out the "me too" and "thanks" postings until finding something useful. Finding the right place to ask questions and search for answers is not straightforward, IMO.
lineinthesand said:
And I'm glad you did. I'm new to Smartphones and the xda forums. This place is huge and kind of intimidating. Often, you have to wade through pages and pages of answers, sorting out the "me too" and "thanks" postings until finding something useful. Finding the right place to ask questions and search for answers is not straightforward, IMO.
Click to expand...
Click to collapse
I'll give you a, brief, heads up regarding the way to search the XDA Forum...
Basically, the XDA Forum (like Google and many others) uses the Metadata system.
The optimal way (but, not the only way of course) to search for something somewhere that uses this system is very simply put using 1 word "Keyword(s)".
What do I mean by keyword?
For example...
[I'm just going to try to explain this briefly because there's more to it but, you should get the point from the following.]
If I'm looking for a way to Root the Galaxy S3, I would remember to omit words like "AND", "OR", "IF", "I", etc...
If you search using something like "How do I Root the Galaxy S3", your results will be huge and would include results that only have (or a combination of) specific words like "the", "I", "Do", etc...
So you would use keyword searching like "S3 Root", "GS3 Root", etc... as well as other keywords that describe the device.
This is not a thorough and complete description (I do intend to create a Guide/Tutorial regarding this sometime) but, it should give you an idea.
I do wish you the best of luck!!!
~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.

Why phone calls cannot be recorded to local storage

How come on both Android and IOS platforms there is not an app that can record a phone call to local storage? Is this something that is not allowed by both systems? Thanks
pctechtv said:
How come on both Android and IOS platforms there is not an app that can record a phone call to local storage? Is this something that is not allowed by both systems? Thanks
Click to expand...
Click to collapse
I don't use this type of app but, the following, Android only, threads may be helpful for what you are looking for and don't be afraid to ask for some member guidance within one of them.
https://forum.xda-developers.com/showthread.php?t=2923904
https://forum.xda-developers.com/showthread.php?t=3509027
https://forum.xda-developers.com/showthread.php?t=3531962
https://forum.xda-developers.com/showthread.php?t=3062498
Regarding the iOS... you won't find anything because the xda-developers doesn't support the iOS device developments.
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.

WhatsApp wrapper app for more than one account

I cannot find an app like that.
I have 3 WhatsApp account, two for my two sons and a business one.
I would like to use them on the tablet and other phones if mine.
I don't want to use virtualization app such as parallel, for there's no need to virtualize anything and what's more I need three account and not just two.
On the Mac I use Franz, and I can configure as many WhatsApp account I like into it.
Do you know if something similar exists for Android?
Thank you.
tsolignani said:
I cannot find an app like that.........
Click to expand...
Click to collapse
I don't use WhatsApp myself but, with a ton of various WhatsApp apps that may have this type of feature your looking for, I can only think of the following one that, I believe, may be what your looking for.
https://forum.xda-developers.com/showthread.php?t=3518808
Don't be afraid to ask for some support and guidance within that thread.
Good Luck!
~~~~~~~~~~~~~~~
UNLESS asked to do so, PLEASE don't PM me regarding support. Sent using The ClaRetoX Forum App on my Enigma Machine {aenigma = Latin for "Riddle" AND Nickname for "My Ex-Wife"}.

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