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Hi,
I am totally new to mobile app development, i am looking to develop a mobile app (hybrid) where a user can flip through a book (pdf) pages and place book marks where required.
I need some guidance as to which tech stack / framework to use. Any pointers will be of great help. If there is any similar app or sample project that will be awesome.
Regards,
SA
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Member 14721287 wrote: I am totally new to mobile app development
In that case you first need to decide which language to use. If you already know Java then go for Android Studio, if C# then you may like to try Xamarin Forms. If you are not experienced in either of these languages then you have a long way to go before you can even start to think about how to build this application. There are lots of articles at Mobile Development[^] which can help.
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Thanks Richard,
I am quite comfortable with C#, i was wondering if i can do something with ionic or any other mobile dev framework.
Regards,
SA
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Sure ill check xamarin and also wait if someone else might have some other suggestions.
Thanks once again.
Regards,
SA
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Just have to agree on Xamarin, imo the best option out there
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I'm a long time WPF developer. I am working on a WPF business app for a client and I'm going to be developing an Android tablet app to go with it. This is my first Xamarin Forms project, so bear with me...
I followed the tutorials here Xamarin documentation - Xamarin | Microsoft Docs under "Get started with Xamarin.Forms", "Build Your First App". I went through all four projects. Everything works fine.
So I then decided to convert the project to MVVM. One thing that I found through Googling is that if you want a View Model to open a new page, your View Model has to know about the INavigation property on the Page See this. What concerns me is that INavigation has to be passed from the UI into the CTOR of the VM. IMHO, This creates a few problems:
1) The VM must be set in the CTOR of the view. That prevents you from doing this.
2) A UI property now has to be passed to the VM.
3) Doing it this way means that you cannot share VMs between WPF and Xamrin Forms projects as WPF doesn't have INavigation.
One this last point... I got the impression from reading up on Xamarin Forms that it's all about sharing code. It seems to me that I could have VMs in a shared project, and use the them in both WPF and Xamarin Forms apps. For example, a LoginViewModel is a good candidate.
Again, I'm very new to Xamarin Forms. I would like to share VMs if I can. I'm open to hearing how this should work.
Thanks
If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.
modified 28-Jan-20 11:18am.
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hi Kevin
Why do you want to mix Xamarin form and WPF if i may ask ?
You can create a Xamarin Standard Project and create the content pages there and other types of pages or views you want to add , after that do your UI there and if there is a limitation on the Xamarin Forms you can use Custom Renders and this UI changes you have made in the standard form will be outputted to different platforms which is ios and Android.
i know you have knowledge of WPF , you can use it on Xamarin Form. but leave WPF out of Mobile dev for now.
Vuyiswa Maseko,
Spoted in Daniweb-- Sorry to rant. I hate websites. They are just wierd. They don't behave like normal code.
C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vimalsoft.com
vuyiswa[at]vimalsoft.com
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Why is it the samsung j2 prime mobile if you restart it sometimes its say "optimized andriod" and it takes 24 hrs to open again ?
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I am plotting out how to design an app I have in mind, but I wanted to get advice on what the best path to success would be.
End Format -> iOS, Amazon Fire TV
App Purpose -> Music player, organize playlists.
Two methods of playback are play on the server using something like mpg123, or easier method will be playback on device that is accessing files over the network.
The music sits on a Samba share but I would like any kind of NFS style share comparability.
This is partially a programming exercise, as I'm sure plenty of options already exist.
My first thoughts on approach:
C# -> Very Verbose and I only know basics
Delphi / Free Pascal -> Much more readable, though far fewer guides to help.
JS/PHP -> WebApp maybe the easiest to write, I have some PHP experience. Though get the impression my execution would be "hacky". Lots of ducktape.
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To be honest, you don't have a lot of choice. iOS and Amazon Fire TV are very different beasts - one it iOS (IPhone, iPad) and the other is Android (as hacked about by Amazon) - so unless you want to write two different apps, your best approach is browser based, or Xamarin - and that means C#.
And do bear in mind that "play on the server" means just that: the client will not be able to see of hear anything unless they are in the same room ... mpg123 is a unix based music player, it won't magically make the sound come out of speakers a thousand miles away.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!
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Thanks OG, that's my concern is cross platform is still no man's land to some degree.
The hacky/easiest way I could think of is hook up speakers to my server (Raspberry Pi clone) and toggle music on and off with mpg123. I would at least like the option for both, play on local device or server.
I read a little about bringing webapps to Amazon Fire. Are there any ways to bring a web app onto iOS? My concern is that a web app would not have capability to reach out to a local (not internet facing) NFS share.
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Two methods of playback are play on the server using something like mpg123, or easier method will be playback on device that is accessing files over the network.
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Helpful, It needs to be exactly.....
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Hi,
How loan lending payment system works?
Is finance company has to register any providers. If yes means please suggest any providers Or else how it payment flow?
Thanks in advance,
Harish.
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This has nothing to do with mobile programming. You should contact a loan company.
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So I want to program an app, where I use the tweepy api. On the frontend of the app, I want to display a list of objects on which can be pressed. If one of them is pressed one new page will open and there I want to display some integer values, which are updating depending on some tweets.
So in the backend I have tweepy where I program with python and the frontend. I started to work with the django framework + react but I do not know if this is the best way to program an app like that. Could you give me some advices on which framework I should use?
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You can use Xamarin.
Vuyiswa Maseko,
Spoted in Daniweb-- Sorry to rant. I hate websites. They are just wierd. They don't behave like normal code.
C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vimalsoft.com
vuyiswa[at]vimalsoft.com
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hello...
On my home page ( [DELETED] )...the Navigation Bar scrolls correctly on any computer display. But on any cell phone, it will not scroll upward and out of the way of the content below it (content which is very important to view fully).
Is there some code snippet that can be added to accommodate this?
thanx,
mark4man
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Don't post your website here unless you want us to consider you a spammer and throw you off.
I was that close with this one as it was, but you've been here a while so I decided to warn you instead. Others have a twichier trigger finger, so unless you refrain from doing it in future (and I include text-based "non link URL's" like some of your previous posts in this) it is inevitable that you will be kicked off the site at some point. The automated system we have in place now doesn't like them, and that means your posts will go direct to the tender mercies of whoever sees it in moderation first. That won't always be me ...
I've deleted the link from your post this time.
Sent from my Amstrad PC 1640
Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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thanx for posting my thread; & sorry (didn't realize). However...how can someone help me if they can't get hold of the code?
thanx,
dox
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Post the relevant code fragments in your message - use the code widget above the text box, and that'll engage the syntax highlighter and preserve any formatting.
Like this:
<pre lang="cs">int Double(int x)
{
return x + x;
}</pre>Will show as:
int Double(int x)
{
return x + x;
}It's not a good idea to post the whole code anyway - people are more likely to respond if you show them where the problem is instead of dumping a whole app on them and saying "it don't work". 
Remember, we can't generally run your whole code anyway - we don't have your site, your data, your user inputs - and we don't know what it should do or how to get to the problem area.
The better you make the question, the better we can make the response - and wading through pages of irrelevant code trying to work out what bit of it matters doesn't encourage people to be helpful!
Sent from my Amstrad PC 1640
Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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Use For Mobile App Development ( Android App )
I. How to migrate an existing project to AndroidX
In Android Studio 3.2 and higher, you can quickly migrate an existing project to use AndroidX by selecting Refactor -> Migrate to AndroidX from the menu bar.
complile SDK version and target SDK version must be 28
II. AndroidX in a new project
If you want to use AndroidX in a new project, you need to set the compile SDK to Android 9.0 (API level 28) or higher and The following Android Gradle plugin flags to true in your gradle.properties file.
set android.useAndroidX=true , the Android plugin uses the appropriate AndroidX library instead of a Support Library. android.useAndroidX is false by default if it is not specified.
set android.enableJetifier=true , the Android plugin automatically migrates existing third-party libraries to use AndroidX by rewriting their binaries. android.useAndroidX is false by default if it is not specified.
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Boy, I would insist that you use proper formatting here! I know this is more of a tip for users, but the title as well as the content makes it seem like a question.
But yeah, AndroidX and all the SDK tools in it seem to help a lot in Android development. 
The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~
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OP is a spammer (terminated).
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