I have a few already written C libraries which i want to embed into the library layer of the android architecture at the same level as the already existing libraries such as libc etc.... i dont want to insert it as .jar packages at the application or framework layer. is that possible.
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I have created a folder in my project with the weka.jar file, created a new library (adding the weka.jar file to the library) and included this library in my build path. I have also added the library under the "Order and Export" tab in the project properties. I have also tried importing the jar file so that the actual contents of the jar are extracted into a directory in my project. The end result of all of this is that my project is able to build correctly and without error, but when it comes time to run my code on the emulator I get the following exception:
04-10 22:52:21.051: ERROR/dalvikvm(582): Could not find class 'weka.classifiers.trees.J48', referenced from method edu.usc.student.composure.classifier.GaitClassifierImpl. with J48 being the class I reference in my code. Does anyone have any additional suggestions that I may have overlooked?
This is a two-part question about adding a third-party library (JAR) to an Android project in Eclipse. The first part of the question is, when I try to add a third-party JAR (library) to my Android project I first get the problem of Error parsing XML: unbound prefix
because I'm trying to use a class from that JAR (and need the prefix somehow defined). What's going on?Second, (after fixing that--the answer is given below), my application doesn't work on Android and I discover via the debugger (LogCat) that the class I'm attempting to consume doesn't exist.
Caused by:
java.lang.ClassNotFoundException:
com.github.droidfu.widgets.WebImageView...
Why, when I get no compilation or linker error in Eclipse, does it have this problem on the emulator? These two questions are rhetorical for I'm going to answer them myself below. Other posts in this forum creep up to the problem and elsewhere there is discussion, but I feel that I can be more explicitly helpful for the next guy to come along.
I'm clearly missing something simple, but after nearly an hour of trying to figure it out, I'm still stuck.
I have an external jar file containing classes I want to use in my project. No problem, right? I just followed the instructions at
That is, I used the Properties->Java Build Path->Libraries panel to add the jar to my project as a library. But it doesn't work. The external library is being included in the compilation classpath, so everything compiles correctly, but the external classes aren't actually getting included in the apk. When I try to run my app, it immediately crashes with a java.lang.NoClassDefFoundError. And looking at the apk, I see it's only 20K, whereas the external library jar is over 200K.
I have a project that I would like to add external libraries to (and have them packaged with the application) but I am not sure it is happening. I read on this link:
http://developer.android.com/intl/fr/guide/appendix/faq/commontasks.html. how to, but they do not show up in any of the /data/data/project directories. Does anyone know how I can confirm that the libraries were in fact added to the project for use at runtime?
I've moved some of my common code into a library project so that multiple projects can access it. I created an empty project, set it to be a library in the properties screen, then imported some classes. Next, I created a new (non library) project and added my new library project to it. Immediately upon rebuild, I get the following error: ERROR: Unknown option '--auto-add-overlay' Android Asset Packaging Tool
View 4 Replies View RelatedOk so I know many are having battery issues. You, like me, probably have more battery life than you think. This is because the application layer of the phone is not receiving the hardware layer's data correctly (hold talk button, end call button, and middle button upon starting up your turned-off phone, this boots in test mode which shows you hardware layer battery power, aka the correct battery life estimate). It's causing another problem because some applications can't be run when the phone THINKS it's about to die.
View 2 Replies View RelatedI've tried hiding my custom tones that I've downloaded at various points in different places on my phone (T-Mobile Galaxy S4), inclding the external SD, but to no avail. For example, I added a high quality .mp3 clip of a old rotary phone ring to use as my ringtone, I put it straight into the ringtones system folder.
Very next time that I start up Google Music, there's new stuff from 'unknown artist," low and behold, the ringtone.
Super annoying, part of the reason I was paying for all access to use Google Music was to have a clean, auto-organized library. I don't want all of my sounds system-wide added to my library, and I can't seem to find any way to change the folders it searches, or even to remove it from the library within the app once it is added.
So, I was sitting here, and adding music to my library with google play music.. Now... I think the big GMan might have overlooked something. I had around 200 songs uploaded from my computer to Play. Now, I got the trial of All Access, and ive been adding a bit of music with the search and add feature.. So then i thought.. Maybe this is a free way to get audio files. I went to the "Music Manager" application on my computer, and i hit "download my library" and its now downloading all 291 songs, allowing transfer to any device (Like an iPod) 91 of which, keep in mind, I had added via the search feature from the Play Music app on my phone. So, is this a glitch overlooked by Google? Or is it intended to be this way?
View 1 Replies View RelatedI 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?
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.
View 1 Replies View RelatedI 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.
View 6 Replies View RelatedAs 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?
View 4 Replies View RelatedI've got a standard RelativeLayout laying out my Buttons and TextAreas. What I want to do now is be able to draw various sparks, flying cows etc. at arbitrary places on the screen on top of the whole thing. What's the best way to do this? Should I override onDraw() on the containing View and draw after calling super.onDraw()? Or is there some better way of drawing a layer on top?
View 1 Replies View RelatedI want to add a contact just to my phone and not to my gmail account.Whenever I start to add a contact (phone, 208544.menu, +contact, create new contact,) the next thing it forces me to do is to choose an account to create the new contact under and it lists my 3 gmail accounts.I have no option to just put it on the phone.Any ideas here?We do the same thing on the Incredible but it gives us the gmail account and the phone to choose from but not on the Motorola.
View 4 Replies View Relatedjust got my incredible today which btw I am loving it. However I have run into an annoying issue, Layer Reality will not install. I downloaded the app from the Android store and while it appears in my download list completed it will not install saying (download unsucessfull) after around 2 seconds or so. I am really wanting to check this app out.
View 2 Replies View RelatedI have a GIS layer, that holds information about some areas. It is basically a rating for a specic area. So each shape defines a specific rating. I would like to be able to add this layer to Google Maps and then in my Google Android phone be able to open a little application that just shows that rating based on your current location as a big number on the screen. I am fairly new to Android development, so I don't know the Google Maps API that well yet. I would be very happy for any pointers in the right direction and even happier if anyone could present an example.
View 7 Replies View RelatedHow to implement a layer above a layout? like this pic: http://ss12.sinaimg.cn/orignal/5d8cb30ag8f47eca43a5b&690
View 3 Replies View Relatedhow can we implement the tiled layer (java net beans) in android?does we use open gl for this?
is that called "texture" or "wallpaper" or ...?
If I draw a round rect shape by code I can use setShadowLayer to get a shadow drawn for the shape. Is there an equivalent when defining shapes in XML?The following example draws a round rect background to a shape. What would I need to add to get a shadow added to the shape? Is it even possible using XML? Code...
View 1 Replies View RelatedDoes someone tell me what is application and middle layer in android. I have to know details these 2 layers and about linux kernal and how is related to android.
View 6 Replies View RelatedI dont know wether this is the right place to post this, but I had a great idea for a implementation of Contacts within google maps. Maybe it is already possible or someone already is developing this, but here it is: Add a selectable Layer to the Google Maps on the Android system that integrates with the Contacts list and shows them in Google Maps. Only contacts with an adress can be shown in Maps and have to be in a certain format ofcourse. Also, you have entered a contact's adress information, from the Contact's menu with 'Call' and 'Text you should be able to use 'Navigate to', which is a Google Maps route from your current location to this person's house.
View 2 Replies View RelatedI'm starting my first Android Application and I'm trying to figure out the best way to implement an RPC layer to communicate with my Tomcat server. Basically, I've got POJOs on the Android Client and on the Server. I simply would like to seserialize the POJOs on Android, send up an HTTP Post, deserialize on the server, do some work, then serialize a POJO response back down to the client. I've seen a number of posts referencing JSON and XML but nothing really definitive.
Further clouding the matter is the different Android SDKs out there that seem to have different levels of support for each. Obviously, if Android has a native library that works well, I'd like to use that. Additionally, I'd like something that could work with my existing POJOs without a great deal of trouble. What are the best practices for this sort of thing? Can anyone send me to any tutorials that have some solid examples on how to get this implemented and going?
I am working on a device that uses dns names and IP addresses to make calls. This is not phone device. We are planning to replace the RIL layer bottom end to talk to our own call backend that accepts IP addresses. When I invoke a ACTION_CALL intent with a dns name, I see the Phone app coming up and changing the dns name into a phone number. Is there any option to turn that behavior off? Basically the phone app passes whatever string I passed all the way to RIL layer as is without mangling it.
View 2 Replies View Relatedi want set my footer at the top layer of my app. it should not have any shakes and moves while the activity navigation or showing up the keyboard. it should always settled in the bottom of the screen. how to do that?
View 3 Replies View RelatedSo I heard on NPR today that I can use my android phone to track where the money from the Stimulus package (ARRA) is going. I googled it, and came up with this info:
Sunlight Labs: Blog - Recovery.gov Augmented Reality Mashup
Layar App Maps Stimulus Money Onto The World Around You
I search on layar for "recovery" or "sunlight", but I don't get anything. Anyone else get this working?
I want to create a communication layer in android. The layer will communicate with server asynchronously. Multiple activities should be able to call methods of the communication layer. The layer will get messages from the server (it is not important for the scope of this question how) and should be able to tell activities to do some work based on these messages.
How should I implement this? Should I do this using android Service?
The main questions that I need to answer are: How can activities access the layer? How can the layer access activities? How can i make the communication layer live for the lifetime of the application?
Is there any Java ME compatibility layer for Android, which makes porting Java ME (aka. J2ME) applications easier? I mean a third party class library which redirects calls to internal Android API.
View 2 Replies View RelatedGoogle Map's traffic layer is working for my area on my G1. Really, really convenient to see how fast traffic is moving at a glance from my phone!
View 5 Replies View RelatedI'm pretty new to Android and Java, though I've really been excited about what I've learned so far. I'm a little uncertain though on how to implement the Model layer.I come from a background in PHP web applications with Zend Framework and the like. I'm used to having an ORM component, through which the Model maps to a database. I haven't really seen anything like this yet for Android, although it's possible I've just not looked hard enough.Are there any good tutorials, articles, 3rd party libraries, etc. that specifically address setting up your Model layer for Android apps?
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