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I'm a beginner in android atudio, I recently make my first app, I put in many raw resources file(txt,mp3) that is why it's size is big (~200Mo).
I want to allow user to download what he need in order to benefit my service like listen to mp3 read text.
You should carefully consider why you need this much data in your app, remove all unnecessary parts and put everything you really need into the .apk as resource.
If I find some app is downloading 200MB to my phone, I'll uninstall that immediately.
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(How) Is it possible to extract the sql-file from an android application on my pc? We developed an app and used it on some devices but unfortunately some of them didn't save the information on our web interface. So we need the database from three phones and typing by hand is out of the question.
Yes, depending on where it is saved you can access the .db file via the device file explorer on the right in Android Studio.
I assume it is in data/data/yourPackageName/databases
There should be .db files, but again, they could be somewhere else depending on the way you created it.
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I have an app in which i have done some work like updated database with some records. Now i want to generate its .apk file so if i send that .apk to another user he or she can continue work from where i left. Like i wrote a half article, now i want some one else to complete it so i send that .apk to him and he can install it and continue our work.
All i could find was to get apks for all applications but i want the generated apk to have all the work i done in my app so the other user can continue easily
ref: How to get the .apk file of an application programmatically
You can't send the apk to the other developer, you have to send the source code. Your best bet is to use an online repository (github for example) and share the code that way.
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I have an Android application,already live on playstore, but due to certain changes in the requirement, I have to add one more activity to the app without updating the app again on playstore.
Also for future projects, how can I make the application update some part of its code, or patch a broken code without updating the app on the store.
In advance thank you!!
You cannot do that, unless your app is explicitly designed and written to support i.e. dynamic UI based on your external resoiurces/files etc. This is not the case so answer is "no".
or patch a broken code without updating the app on the store
You can download APK from external source and init its installation.
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In my application i need to have list of images that are downloaded from whatsapp.
I am a newbie in android programing world.
please give me some guide line for it.
There you can follow some steps :
check that whether whatsapp installed or not
if installed then check in which directory it keeps its downloaded image.
if it is a separate folder & can be accessible from outside of that app then you can normally use that images.
if it downloaded its image in a common directory then then it's not possible to find out which images are downloaded by whatsapp.
Thank you.
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Is there any method or way to check that user is writing text whether in whatsapp, or messaging, or any edit text.
No, not supported by Android. It might be possible if you go on a lower level using NDK, but the short answer is, there is no easy way.
The basis of this answer is how Java works, each application runs in a virtual environment and thus they can not interact with each other directly.
If you really want to achieve this (However there will probably be limited usage, such as only rooted devices) I would suggest to start search the web with keylogger android as keywords.