I have implemented a Broadcast Receiver to open my app from the launcher. The number to open is #1234#
Now it works perfectly in some devices while it doesn't in some. Now my question is how is this even possible?
If it works, then it should work in all devices isn't it? Also I need suggestions on what would be the best practice to ensure that it works on all devices.
Thanks.
Now my question is how is this even possible?
Yes it is pretty much possible.
If it works, then it should work in all devices isn't it?
No, Reason behind your implementation not working can be but not limited to are given below.
1) Every Phone Manufacturer tweak Android OS code(As Android is Open Source). There can be chance of have given priority to System Apps first then public
apps.
2) There can be other apps(System/Public both) running on the phone, which are listening on the same BroadCast Intent and taking action before your app does anything.
3) Phone are slow and your receiver getting command little later then expected!!
Share more details on your testing to get more feedback.
Related
i want to take tablet (some cheap chinese one) and run specific app on it (actually it is web page, so i need browser).
for example, i need the tablet to run the browser on "http://cnn.com" and thats it.
disable all buttons and disable all the other functions.. (power on the device to the specific page).
how can i perform this? i tried to read about building specific ROM but it looks like it will not be easy, especially with cheap unknown tablets..
any ideas?
Thanks
Thank you NigelK.
i find some tutorials for kiosk app.
the best solution is to run service in parallel that check the app is in the foreground.
please find the following tutorial:
http://www.basic4ppc.com/android/forum/threads/android-kiosk-mode-tutorial.10839/
I have an idea for an but I am not sure if it's even possible. I ran into an issue the other day where a phones touch screen was barley working and I needed to get the contacts off of it. I have a cellbrite machine but anyone who has ever used one knows how finicky they can be.
I would love to develop an android app that will connect to any phone via bluetooth and force pull all the contact from it, this would be handy if you have a troublesome screen. My question is this even possible based on the different phone types, and the different level of bluetooth protocols supported on the phones. If anyone has any ideas on how this might be accomplished hat would be great.
Any app with the necessary permission can read a phone's contacts and send them over Bluetooth (or Wi-Fi).
I think the main problem would be that people don't think to install your app until they need it. Then, you can't install your app onto their broken phone unless the phone has a network connection, and if they have a network connection then there isn't really any need to use Bluetooth in the first place.
Actually, one of the basic ideas of Android is that everything on your phone is sync'ed - so you don't have to worry if your phone gets crushed.
Is there any way to restart a device per code from within android. I can highly customize all software on the device (tablet). As Backgroundinfo: I want a timer that restarts the device after a defined count if he did not get reseted.
Edit:
If there there is no Buildin-Way is it possible to do this anyway?
In general Google dont allow third party apps to Reboot device below are few link might be helpful
http://groups.google.com/group/android-platform/browse_thread/thread/daf7c685e020d296
http://groups.google.com/group/android-developers/browse_thread/thread/5a97467ef5b4bf47/a1fe9379d4f5e30f?pli=1
This isn't possible from within an app, I believe.
The intent for rebooting the device (ACTION_REBOOT, if I recall, but I'm happy to be corrected!) can only be called from the system itself, not from any software residing on it.
(See the Android reference docs here.)
I'm wondering if it's possible to develop an android app that will be run in sort of a kiosk mode. The idea is that the user should only be able to interact with the phone through this app.
I understand that an app can be auto-restarted, and things like avoiding incoming calls, could be implemented via a service that would subscribe to the telephony events and would hang up when an incoming call is received. The downside of this is that the usual "answer call screen" would pop up for a short period. The reason behind this is that the stock android app that receives the incoming calls will still be there.
I also understand that, by design, this custom app could be killed at any time by the OS if memory usage gets too low. Although this should only happen if there's a memory leak in any of the running apps.
I'm not sure either if it would be possible to disable the behavior of the physical buttons to access home or settings screens.
I understand that rooting the device and/or creating a custom ROM with modifications would be a safer approach, but also more complex. I'm wondering if a good-enough kiosk mode could be implemented with an android app.
P.S: I'm sorry for reposting these questions, but answers to similar questions are not clear enough.
Make your application be a home screen. That can still be bypassed unless you make your own custom firmware where your application is the system default home screen. We cannot tell you whether being a home screen alone is "a good-enough kiosk mode".
I've been searching for this for days now, nearly every answer is not a complete solution at all (and it's doing my head in)
This link though has the best answer so far
http://thebitplague.wordpress.com/2013/04/05/kiosk-mode-on-the-nexus-7/
I want to reboot targeted phone by SMS. Is it possible? How can we implement this?
According to this Android Developers thread on Google Groups, third party applications don't have permission to reboot the device.
Your problem has two core parts. Can you reboot the phone programatically? Can you write a program to intercept incoming SMS? If you answered YES to both of your question, it is possible to do this.
I am not a Android developer but i think this should be quite possible.
take a look # Android SMS intercept without notification icon or WAP-PUSH messages and http://mobiforge.com/developing/story/sms-messaging-android
I think BroadcastReceiver is the one you are looking for.
I have no idea whether you can programatically reset the android phone using java... Someone else might answer you about that
EDIT: I guess according to the link Bill has posted, 3rd party applications are not permitted to do a reset
If you mean by having an app waiting for a specific text, then only on a rooted phone.
Ranhiru's link tells you how to get the text without it giving a text notification. If your phone isn't rooted, then programs don't have access to functions like that. If it's rooted, I can't say exactly how to do it, I haven't tried yet, but have a look for the source of apps like quickboot, a lot of them have it all publically available on code.google.com
For the record, it IS possible to intercept SMS messages on a stock Android phone - I've written a little app which pops up a Toast when I get a text rather than having to go in to the messages app.
It's NOT possible to perform a normal shutdown/reboot/??? without rooting the phone or being Google (at least, convinving the phone you're Google) but that would be a violation of the developer agreement.
In fact, you will find huge barriers in your way if you try to do anything to the OS or any other app - Which is usually a good thing