Am developing one Android application which is using thinkfreeoffice.apk for viewing documents in my application. My requirement is I have to download both my application and thinkfreeoffice apks at a time and also install both these apks at a time.
anybody did this one before?
You cannot literally, unless your application is signed with the system certificate or you are using the SDK/ADB install method from a connected PC, or you find and abuse some security bug. As a security measure, any installation done by a normal application on the phone will require the user to go through the confirmation dialog one app at a time.
What you can do is put check in your application for the one it depends on, and keep complaining/downloading/ACTION_VIEWing the downloaded package upon startup of your app until the user either decides they don't want to use your app or agrees with the system install dialogue for the app you depend on.
I think it's impossible to install multiple applications at the same time, as the user has to confirm installation for each apk.
You could of course make the user install your application first, then ask the user to install the office application after which you use an intent to start the installation or redirect them to the Market.
Similar implementations have been used in applications that use third party barcode scanning or speech recognition.
Related
I need to implement trial period on my application. Once trial period is over,If user tries to uninstall and install the application again, for this case I had write one file on sdcard, if the user re install the application. When they open the application I had shown activation key prompt.
If the user delete the file,they can re install and use the application normally. How to solve this case. Is there any other way to hold the application install details in android device.
Note:
My application is a offline application.It won't need to connect with internet.(So there is no way to register with server).
Take of it this way. Everything you store on your phone will be able to get edited/removed/added. The best approach to this kind of problems is to use a webservice to register a device and check it's register date. However since your application is offline there is no way to do it foolproof.
Is is possible to make an android app non deletable.. What i mean is, I want to install a app, but I cant remove/ uninstall it. If I want to uninstall it then it should prompt me for password which I would have set during installation of the app.
When I read the docs they tell it can be done using Device Admin, but it doesnt provide security, interms of it doesn't ask the user for the password and deletes if its correct..
Is it possible to make an app such that even if there is a factory reset the app will still be there on the phone ?
Is is possible to make an android app non deletable
No, unless you want to create your own ROM and preload it with your app, just like some manufactures preload their devices with their own software and other bloatware.
No it is possible to restrict any user to delete the app from android device.
As google already maintaining this scenario by using the concept known as Device Management System.
Google Eyeing on apps which are published by the developer / installed or deleted by the user.
Although you can make your own app which will notify your admin that user is trying to delete the app or deleted the app, using Service Intent concept.
Some of the applications I have installed on my phone update automatically, I don't even have to click anything. This is the behavior I expect from the application I'm developing myself. Do I have to configure something or will android market take care of this?
This is not a behaviour you can set on the application itself. Each user chooses how the applications he downloads are updated. This is a market setting.
In the latest versions of the market, the default is now set to auto-update, but the user is free to untick the box and decide for manual updates, per application. If you open settings, you can also decide whether it's done on Wi-Fi only or on mobile data as well.
This will be done on all updates except the ones where a permission change occurred. For them, the market will still require a manual update.
Auto update is possible. But you should click app to start it at least.
In the start process, you can send the current version status to server through web service, server will identify the version if there is new version. if yes, a new version apk file will be downloaded, and the most important is how to install a apk file sliently.
Generally, you can run the
pm install -r xxx.apk
the apk will be automatically installed, and your app will be updated.
I'm almost positive you can't force users to update their installed apps, but I think it is the default behaviour of the Android Market.
When you install an app from Google Market, you have an install button, which downloads and automatically starts the installation program for the apk you just downloaded. It doesn't install it automatically, only it automatically launches the installer for the apk you just downloaded.
Is it possible to have a similar button if you have a apk file on your local server? How will the link look like?
I've read a lot of almost similar questions here (like this one
How to install APK automatically when the file download is complete (hosted on private) or how to automatically install an apk), but none of the answers explained if Google uses something special for its market or is it possible to use a special kind of a link to force the installation program from the phone to automatically launch after download? Automatically LAUNCH, not automatically INSTALL the apk.
That is, when users scans my QR code with a QR code reader or types directly the URL in the browser, how can my application trigger the installer program right after download?
Let's say I do the following:
1. I generate a private key on my computer
2. I sign my app with my private key
3. I submit my app to Google market
4. I upload my app to my site.
When someone will download my app from Google Market, the following will happen:
a) That person will access the Google Market URL of my app
b) He will download it to his phone
c) The application installer from the phone will start automatically, and ask him if he agrees with the permission required by the app.
When someone will download my app from my site, the following will happen:
a) That person will access the Google Market URL of my app
b) He will download it to his phone
c) The application installer from the phone will NOT start automatically.
I don't want the app to install without any intervention from the user, just for the install process to start automatically after download.
My question is how to make c) to happen even if he downloads the same app, signed with the same signature, but from my site?
The simple answer is: You can't (at least if I'm remembering correctly).
AOSP contains a set of Google's public keys that they sign their applications with. And in order to be able to install an application without any intervention from the user, the apk must be signed with the matching private key. So, in order to do this, you will have to do one of two things:
Get google's private key and sign your apk with it.
Get everyone to upgrade their phone to have your public keys along side google's.
Neither of these are really possible. So basically, you can't. Unless your targeting the root/rom community. Then you might be able to convince them to do #2 (add you to the list of keys that can install apps without intervention).
I am working for manufacture of cell phones. we develop for the Android platform, therefore we can sign our applications and have system permissions, for example we can use
the packagemanager.installPackage(|..) method, which gives us the ability to install APK's without the user involvement.
I would like to know, if any one you know about an Un-instantiation method which would uninstall apk's silently without user-involvement?
thanks,
ray.
There is functionality in there some where to do this - Google uses remote kill switch to uninstall Android apps, but I haven't seen any details on where you would find this. But as a user I would be very unhappy with a handset which silently removed apps without telling me - even if the app was a security threat, if I had installed it, I would want to be told it was being removed.