Android :: How To Catch UnsatisifiedLinkError When Using NDK-built Library In Droid App
Jul 27, 2010
I have an Android project that contains a class that uses JNI to pull a value from a C function. The C function was built into a library using NDK. The value returned from the C function is in turn used to initialize a variable inside a class when its first loaded. This works fine. However, I also want it to work when the library is missing by providing a default value. So Im using something like this..
Despite the catch, Im still getting a UnsatisfiedLinkError when I try to run this code with the library missing. Why am I not catching the exception? What am I doing wrong?
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Jul 27, 2009
I need to catch the the in built mail in mobile when a new mail arrived to our mobile i need to show some message how can i catch the notification .
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Nov 27, 2013
I have done many of reverse engineering for other electronics in the past, Since Im new to android I was wondering before even wasting my time if is possible to port, or built a rom from sources or a phone thatis NOT External SD built in to a phone that it have the external sd built in.
Making it short can I try to reverse engineer the android code from a Nexus 5 (no ext_sd) to other device that have ext_sd built in?
If is possible where should I be looking to start trying making some development on this as I haven't done nothing close quite.
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Nov 11, 2010
I have an Android library project that makes calls to PreferencesManager.getDefaultSharedPreferences.
I have 2 version of my app, paid/free, and they are not able to access the preferences stored by the library code.
Can someone tell me the right way to store values in SharedPreferences in library code and have the values available to projects that include the library?
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Aug 17, 2010
According to this SDK guide, unit-testing a Library project can be achieved by creating a standard application project, reference the Library project and then instrument the application for unit testing. However, when I do this and launch the test application I get the message.No tests found with test runner 'JUnit 3".I'm using Eclipse and the Android ADT plugin, all latest versions.the projects compile just fine. The test project also installs fine to the emulator. But in the console I can see that it looks for <library>.apk, which of course doesn't exist since I'm compiling this as a library into the test project.
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Aug 26, 2009
I created a jni library which depends the third shared library, I must copy the third shared library to /system/lib, otherwise, Java application can't load jni library. But you know, on G1 with official OS image, /system/lib is readonly. I tried to call System.setProperty to set java.library.path to the location stored the thired shared library before load jni library, but the issue still exists.
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Apr 16, 2010
Is there any way to catch crashes in my own android app? Something like a global uncaught exception handler? Just wondering if I could install something like that, then if an uncaught exception is thrown, I could pop up a dialog for the user and ask if they want to mail a dump of the exception to me.
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Aug 30, 2010
I want to clear catch memory when I close my application in Android. A code example would be helpful.
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Jul 22, 2010
Code...
Doing something like this, but can't get notification.Reference said :
public static final String ACTION_PACKAGE_REMOVED
Since: API Level 1
Broadcast Action: An existing application package has been removed from the device. The data contains the name of the package. The package that is being installed does not receive this Intent
A need this intent to set uninstall password. Any suggestions?
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Nov 9, 2010
I'm making an Javascript web app and I can't for the life of me get the touchstart event to fire. I get the touchmove and touchend events no problem. This is a problem because as I see it the best way to distinguish between a tap and a scrolling motion is to zero a counter on the touchstart event, update it at touchmove and then compare it at touchend. I'm doing this so I can do some action at the end of tap but not a scroll. For instance, it would be very confusing if a page opened for an item in a listed after you finished scrolling down that list, but it would be nice to be able to tap on an item to open its page.
This is what I have..
I never see the touchstart alert. If I scroll the touchend will fire and app__touchMoving will have some sort of decent value. On a side note, I've noticed that sometimes the touchend will seem to fire multiple times.
Am I missing something basic here? Plenty of people say that this should work just fine on Android (and iPhone) yet the first listener never seems to fire.
Update: I should mention that I've been testing on a Samsung Galaxy S running Android 2.1.
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Nov 4, 2009
With the physical keyboard you can catch key presses with a KeyListener, something like. code...
Does anyone know how to do this (or similar) with the virtual keyboard?
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Jul 15, 2010
As I understand, the three ways of distributing my application are via Jar, Android Library and Android Library Project.Jar - cannot contain resources or XML layouts (so this is out for me)Android Library - I don't really know how this works but the Google API uses it..Android Library Project - includes resources but allows the client free rein on the code as it is distributed as source.If I am to create a closed source application that requires drawables and XML files that I want to distribute to other Android programmers, what should I use? And can someone direct me to a tutorial on creating an Android Library?
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Jun 28, 2010
I've created a radio button menu list ..
what I want to do is to catch the selected value from the above Char Sequence and to put to a variable .
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Aug 4, 2010
Is it possible to write service that can catch any user's click on the touch screen and read text of the click no matter what application currently is active?
For example user click on browser or any other application and that service will know what word is written in the location of the screen.
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Jun 11, 2009
I download android source and build a sdk from it (via make sdk). I have also installed ADT on my eclipse. My question is how can I setup ADT to point to the SDK that i built (it keeps saying it can't find the 'tool' directory and then it can't find the 'adb' under tool).
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Mar 11, 2010
I am developing a small app for Android. I am creating my own view.
I am planning to design the layout to be:
<LinearLayout>
<MyView>
<Button><Button>
</LinearLayout>
But when I run my program, my custom view will cover the whole screen. Is there anyway to avoid this?
I have already tried to add android:layout_width, layout_height to be wrap_content, fill_partent, but no luck.
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Aug 22, 2010
Is it possible to programmatially read the date when my Android apk was built? I could not find anything in the PackageInfo class.
I want to expire beta versions of my app and the easiest way would be to read out such a date and expire it after a fix preiode of days, so I don't have to update the code for that eavery time I build and deploy a beta version.
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Apr 15, 2010
I just wanted to know if there is some kind of class to use the multitouch features of android 2.1. Specifically I am trying to implement pinch-zoom and was wondering if I always have to measure the distance between two touch events and calculate the zoom level on my own?
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Aug 26, 2010
Is it possible to call the built-in Video Recorder in Android through an implicit Intent? I did some search but haven't figured out yet.
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Jun 4, 2010
I need to make my client talk to a XML-RPC service. I found a couple of interesting ones on the web like android-xmlrpc. Have you used any such libraries in your code? Which library do you recommend?
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Nov 8, 2009
for some reason i can't seem to log in to the built-in youtube app. it works fine via the browser, but when i try to log in via the app it says either "the username or password isn't valid" or "there was a network error while trying to sign in to XXX. retry now or press the back button to cancel".i'm going on vacation in two days and was looking forward to uploading a few movies on the fly. looks like i will have to do it manually via the browser.
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Dec 28, 2009
Not sure if there is a way to do this or not, but I don't see an option to share a Youtube Video with a GChat conversation?When you long press the video, then Share, everything is listed to share too: facebook, twitter, messaging, gmail --- but not GChat.You can work around by Sharing to Gmail, then Copy the text, and paste it into your Gchat conversation, but hmm? How do you report that?
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Feb 4, 2010
How do you delete something like Car Home or Gallery or Maps especially dont ask why oof your droid i am rooted...
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Sep 22, 2010
I've already written a game engine in java using eclipse and opengl es, I had one project (an android project) which contained both of my packages com.logic.engine com.logic.testapp I wanted a way to keep my engine and test app seperate, I've made an earlier post about how this is done, and I figured out how to reference one project in the build path of another (or just creating a jar file). My problem is that, lets say I now have my engine all wrapped up in an android project com.logic.engine, and now someone would like to use this engine to create a game, so they create an android project com.someclient.game, well now because we have one android project referencing another, it crashes everytime. Now obviously i need the android sdk in my engine package in order to reference things, but its also required on the client app, since the activity is what is actually being run by android. I guess my question is, how can i create a project for my game engine without it being an android project, but still referencing the android sdk, and without causing it to crash the client app using it?
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Apr 20, 2010
Is there a library, as it were, of Droid Apps? A place you can look while at your computer to see what the "thousands" of Droid apps are? Apparently Droid Market is only really accessible from your Droid device, which I don't have yet.
So, is anyone maintaining a more or less complete listing and description of all or most of the Droid Apps?
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Jun 12, 2010
I want to add a non-native shared library to Android so every application on the device would be able to use it. I mean using packaged classes just like a core library as if they were present in the application itself. I studied Android source code to figure out a way to add a new path to the application ClassLoader and found out that it is created during startup and there's no way to change the paths later. I can use my own ClassLoader, but all I will get after loading a class will be a reference to a Class object. This way I will be bound to work through reflection mechanism, which is slower than the native execution system Is there any way to organise a shared library on Android?
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Aug 20, 2010
I need a PDF library for manipulating a PDF documents, ( Creating PDF, image convertinng to PDF ) and things like that but in Android .
I tried the android itext port but the library project generates compile erorrs after I added it to my Project. Looks like it is still using some affinetransformation classes that are defined in awt.
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Jul 19, 2010
I figuered out how to tether with the phone. Pair the phone via Bluetooth and go to "Show Bluetooth Devices" and "connect using" and then "access point. Now you have tethered with Bluetooth.
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Aug 6, 2010
I have a need to render and display charts (bar charts for now, but more types may be needed later) in an Android app I'm working on. I've done some looking around and it doesn't look like there are any really good, mature charting libraries for Android yet.
Do you know any?
Edit to add some details of requirements
Bar Charts
Horizontal bar charts
Double stacked bar charts
Axis labels (including rotated 90 degrees on the y axis)
Labels above each bar on the chart
Shaded or custom backgrounds
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Oct 29, 2010
Is there a Java yaml library as good as snakeyaml for Android? (Or is anyone successfully using snakeyaml on Android already?)
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