I developed an app which fetches a website data. Now the app will work only when the internet is available. But I want to add some content to the app for viewing in offline mode. So I want to know is it possible to fetch data from internet on installation time?
It's not possible. You can consider downloading your data on first launch.
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I have developed an educational android application. I have also developed a web application to insert questions on the web and download in android sqlite database. And also the test result is uploaded to the web. The application is working locally without internet when its database is updated.
My Problem: I want to update my android application's sqlite database from my website using internet and to upload test result after someone completed the test. So, give me information programmatilly as soon as possible to update my android app from my website and to upload test result from android app to my website.
I will be highly thankful!
That is not a good practice to change your local sqlite database from web directly. You need to store your activities status in an external database (probably on your web server) and let your android app talk to your server and ask for update or new results (preferably a JSON response) and let you app update your local database.
If you want to get notified if anything has changed on your server you can use Google Cloud Messaging (GCM) or you can write a SyncAdapter to poll the server periodically to get the latest changes.
But never try to update your local sqlite database from web!
I have a question about meteorjs and cordova mobile app development: will mongodb work locally on my mobile app (built with meteorjs and cordova) even if I turn internet connection off ?
My app will require only locally stored data (but need more space than localstorage provides) and I'm not sure how Meteorjs-cordova apps works after compilation to mobile (android & iOS) - does it have its own MongoDB instance inside it?
And if yes, is it possible to run it in offline mode?
Scenario:
internet connection is needed only on 1st run to download data, next time You can load everything locally and don't need to be connected to the internet.
Any information will be appreciated.
Your mobile app won't have an exact MongoDB instance on it, but you can use minimongo to store data in-memory on the client-side. So if you pull data from your server MongoDB instance, it'll be stored in minimongo until your app is closed. The data isn't persistent so you'll need something like this package to save data between launches.
See this answer for more information
I'm creating an android app, using Android Studio and at the same time making a web version of the said app using django. Is it better to make a python web app in django with the database and all first. So in the mobile app, i wont need to store data anymore, im just gonna grab the data from the web to show in the mobile app. If so, how do i do getting data from web and show it to android app?
The usual way is to make a web service which returns a json which you can consume on your mobile app and store it if needed offline.
I have developed an android tourist app using web service (json api),the app is working fine. App have map view with markers ,and photo gallery ,location detail etc.
Now client want to add a feature of offline mode ,means that when the app will work perfectly when internet will not available.
I have google a lot and found that sqlite database will be very useful for this functionality and I can implement this but my problem is that :
->how to save data in sqlite,as there are 15-20 apis which I had implemented in the app
->now how will I save these apis to the sqlite table and how to connect them in offline mode with the app
->how will connect all the tables each other
I have never done this kind of work ,please suggest me any help.
Please suggest me any solution,If you have another way to implement this functionality then please guide me .
I want to make an android application.i.e.It's a quiz application.
Like after publishing my app I added some new question.
I want when user get connected to internet application should be updated.
So how can I update application from internet?
Do you have the data held in sqlite within the app? If so, you could look for updates to data on the internet (presumably on a website you already host) everytime the app starts. Do this in an async task so that it doesn't affect the user experience.
If newer data is found, you could fetch it and update the sqlite tables in the background.
Data bundled with app : If you compile and upload a new apk file to play store, update will show in users play store. This is good for occasional updates, like a new version of app or so.
Data not bundled with app : you can make your app fetch its question data from a remote server. This is easier for very frequent updates, like you add questions daily on a web site. But you will need a server.