Android :: Developing Android Applications Require A Rooted Device
May 5, 2010
I am looking generally in to Android development.
I keep seeing information on root however I am unclear how this relates to general android app development.
I understand that there is an emulator however when I get to actually test the software on a phone does that phone have to be a rooted device or is this only required if you wish to edit the core features of the os?
Finally are there are any development disadvantages to rooting the device such as that is no longer behaves like other android phones I may deploy too?
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Sep 30, 2010
Apparently my app needs 2.5 MB (maybe because my photos need 2MB...) and then virtual device can't work with that much MB.
How can I make my virtual device support more than 2.5 MB to get my application working?
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Aug 22, 2010
So I just rooted. I am looking for the sweet apps that everyone talks about busybox, SetCPU, Root Explorer, Titanium Backup, WiFi and Wired Tether, etc. Do I have to sideload these, can I find them in the market? Do I need to download something special from the market?
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Sep 3, 2010
What's the reason that a phone needs to be rooted in order to take screenshots? I'm almost in disbelief that something as simple as a screenshot app isn't available (or built-in!) for an unrooted phone. It just seems like such a normal thing to do.Is it possible that in the future an unrooted phone can have an app to do this, or is there something about Android itself that doesn't allow it?
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Jan 19, 2009
I set my application search to only show free applications, now I want to find the applications that cost money. How do I find these applications on my Google phone?
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Jul 24, 2010
AS per the question, how many of the HTC apps require you to be online to do anything? Like are they all weather, sat nav, or use the internet to show you locations, and such? I'm just wondering how many apps will require me to use GPRS when outside of a WiFi zone, which would be quite a lot of places really!
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Jun 8, 2010
I've watched many of the Google IO talks and one that I'm trying to reproduce is "Developing Android REST client applications"[1]. In this talk Virgil suggests you should not execute your RESTful queries inside a Thread/AsyncTask spawned from your Activity (which I had been doing), instead you should use a more complex architecture that uses a combination of a ContentProvider and a Service. From what I understood the reason for this design was so your data was more persistent between app restarts, and so your queries don't disappear if your Activity starts/stops (e.g on a screen rotation). I buy into both those reasons hence I'm trying to implement this. On the slides[2] page 45 We have an Activity calling a ContentProvider. Now the ContentProvider checks its local database, if the content is not there it sends an Intent to a service which fetches the content, inserts it into the ContentProvider, then the ContentProvider calls back to the Activity (with a ContentObserver) and the Activity can carry on. The question I have is how is this callback setup. The ContentProvider exposes simple methods, query, insert, update, delete which don't seem easy to adapt to a callback interface. It could be implemented by a Cursor which is designed to block, but that could be problematic as you don't' want to block your UI Thread. I'd appreciate if anyone could make this clearer to me, or show me some code. I'm hoping the Twitter app will be open sourced soon which apparently uses this architecture.
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Sep 1, 2010
I've read through the note of the topic "Developing Android REST Client Applications" from Google IO 2010, but I still have no idea on how to start. Can anyone show me a code example? Either the code for "Option A: Use a Service API" or "Option B: Use the ContentProvider API"
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May 26, 2010
On the documentation page "Developing on a Device" http://developer.android.com/guide/developing/device.html there may be two errors in the section "Setting up a Device for Development."
First: To run (not debug) an app on a device, you do not need to set the "debuggable" attribute in the manifest. The documentation implies this is a requirement. It may be a good idea, but, when stepping an absolute beginner through the process of running their first app, this is an unnecessary detour.
Second: The instructions for turning on USB debugging don't mention the Settings activity: "On the device, go to the home screen, press MENU, select Applications > Development, then enable USB debugging."
The first error is more of a quibble, but the second seems to be actual misinformation that may puzzle a beginner, wondering why there isn't an "Applications" item on the Home app menu. In most cases this should go "Settings > Applications > Development > USB Debugging," and the menu key is not involved.
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Feb 22, 2010
I am developing using Eclipse and MyTouch phone, while i can run the application fine on the
device, i can't seem to set break points for debugging. is there some settings/tools i am missing?
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Jul 1, 2010
I'm developing an application that would need to persist data locally in Android devices. I'm aware that Android provides two packages for database persistence, the normal "java.sql" and the "android.database.sqlite"? Which one is used more for persistence? I suppose that "android.database.sqlite" is the implementation of "java.sql",
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Jan 27, 2010
We are trying to use a shared server (Ubuntu 9.10 64-bit) to develop Android applications. The thought is that a number of developers should use the shared server for development. We have overcome some obstacles such as setting the base port for DDMS. So it is possible to run multiple emulators and multiple instances of Eclipse. But we run into problems when trying to debug applications from Eclipse. It seems as though all emulators are trying to connect to the same Eclipse instance when debugging.
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Nov 24, 2010
I've already written some small Android Applications, most of them in one Activity and nearly no data that should be persistent on the device.
Now I'm writing an application that needs more Activities and I'm a bit puzzled about how to organize all this. My app will download some data parse it show it to the user and then show other activities depending on the data and the user interaction. Some of that data could be cached, some of it has to be downloaded every time. Some of that data should not be downloaded freshly at the moment the orientation changes, but it should on the moment the activity is created...
Another thing I'm confused about are things like a httpClient. I now for example create a new httpclient for every activity, the same thing for locationlisteners.
Are there books, a blogs or documentations with patterns, examples and advice on organizing larger apps build on android? Everything I found until now are get startet tutorials leaving me alone after 60 lines of code...
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Apr 3, 2010
Has anyone managed to develop Android Applications using Eclipse on the Windows platform. I understand the ADB needs to recognise specific models of phone and wondered if the Tattoo is supported.
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Aug 28, 2010
How Titanium works with android? And it is easy to work with titanium for developing android applications?
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Sep 20, 2010
I wonder whether there is any way to develop native apps (HTML-based apps is another story) that would run both on Android and iPhone? I know that there exist applications available for both OSs, so I wonder how are they ported/developed for both targets?
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Aug 14, 2010
I am a newcomer to android development. I created a image puzzle app named "Sexy Image Puzzle" It is a simple jigsaw puzzle. As I have just started developing for android, I didn't buy the dev phone yet. I tested the application in Emulator. I was planning to create similar puzzles for Cars too. But the app has too less downloads so far. Could anyone use this app and let me know, what is going wrong? It is a free application, so there is no payment involved. I just want to know some feedbacks, what is going wrong. This is a small help, I need from you guys, till the time I buy my dev phone (probably starting september)
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Apr 27, 2009
How to develop applications for Android. I downloaded the Android SDK but I don't see where to begin.
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Apr 20, 2009
I try to use facebook-java-api to wrote my android application . but I got some problems . when i import all the libs in facebook-java-api,My eclipse Could not find my apk.
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Jul 9, 2010
I am a new Java programmer. I want to learn how to develop Android applications. If someone could name the best IDE, books and websites.
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Jul 2, 2010
Does the Aria support Live Wallpaper? If so, does it require the phone to be rooted?
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Apr 17, 2010
First of all, I just want to say I am a software developer, but I am not an Android developer. However I usually walk around and think on stuff. AndI've been recently thinking all the news concerning how fragmented Android is getting, with different Android versions and tweaks by different phone manufacturers, and then for developers you have different size formats. An example would be that HTC Tattoo might not be able to run everything that another phone might run, due to different screen formats, etc. And now the Android tablets are coming with different Android versions and different screen sizes, all from 5" to 11". Will this make developing Android applications harder? Apple has it safe here since they manufacturer all devices that run the iPhone OS: the pods, phones and now the pad so they can easily control and make sure not to loose any customers by introducing a new device. When Apple introduced iPad they had to make sure that all the old iPhone applications would work on the iPad. They solved that neatly by saying that iPhone applications will simply be stretched out to the double size and it would fit on the iPad. Unfortunately Android does not have the same luxury to do this. As I said, I am not an Android developer. Just a curious software developer For you guys who work actively in the Android community, does Google have a solution for this? Will you be able to run phone applications on the tablets? Is there a bridge between the devices? Are there any standardizations or will Android development become even more fragmented? you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-devel
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Apr 8, 2010
Is there anyway to rename an application on a non-rooted droid?
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Aug 26, 2010
On Launch of the application, I want to detect if the device running is rooted. Is there proper way of detecting it? I don't think trying to write a file to 'data' to see if rooted is a good solution.
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Nov 15, 2012
I am using Samsung galaxy S plus (Android 2.3.4) rooted, looking some way to uninstall preloaded applications.
Any way to achieve this.
GT-I9001
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Aug 6, 2010
How do you determine (programatically) if an Android device is: rooted Running a cracked copy of your software or rom. I have some sensitive information in my database, and I would like to encrypt it when the phone is rooted aka the user has access to the database. How do I detect that?
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Jul 9, 2009
My app has a certain piece of functionality that will only work on a device where root is available. Rather than having this feature fail when it is used (and then show an appropriate error message to the user), I'd prefer an ability to silently check if root is available first, and if not,hide the respective options in the first place.
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Sep 18, 2009
Is it possible to install J2ME applications on andriod device? I read somewhere that its not possible. are there any alternate ways (such as third party support) to run J2ME apps on android device.
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Feb 11, 2010
I'm trying to make my application (compiled against 2.1) compatible with the 1.5 platform. I've handled all of the res/ folder issues, and have been able to run the app on all platforms without problems. I can run it fine on all emulators, and all devices/OS systems running 1.6 or higher. But on the only 1.5 device I have (HTC Hero), I get intermittent problems.
The only 1.5 device I have is an HTC Hero phone I got free at the Sprint developer conference a few months ago. When I test the app on that device, I have occasionally encountered a bug I've not seen anywhere, and can't find any information about.
I can install the application via the adb install command (although I get two messages about unknown commands), but after installing the app, the icon can disappear from the home screen, replaced either with a different icon or no icon.
When the app is launched in this state, rather than seeing my application name in the title bar, it reads "60.0dip". I don't use this value anywhere in my application.
I have never observed this problem on any other phone I've tested on (G1, myTouch, two Motorola Droids, Nexus One), but as I said I've only got one device running 1.5.
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May 10, 2010
I'm looking to get a device (phone, tablet, etc.) for developing Android applications. I know I can use the emulator to get me started, but I feel like that will only get me so far along. I'm looking for something reasonably priced, and I don't want a phone contract, data plan, etc. Anyone have any suggestions?
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