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POandroid JNI loading mupdf (compile with NDK?)
 

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  1. POandroid JNI loading mupdf (compile with NDK?)
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    <p>I am creating an Android Xoom application which displays a pdf in one of the Activities. </p> <p>I have downloaded the mupdf source files: mupdf.c, Android.mk, Application.mk, Core.mk, and ThirdParty.mk.</p> <p>I have also been to the mupdf.com web site and tried downloading various pre-compiled packages from here: <a href="http://ccxvii.net/mupdf/download/" rel="nofollow">http://ccxvii.net/mupdf/download/</a></p> <p>I just switched to Android from the iPhone and have a few things to learn regarding including C code. I put the mk / c files into /jni/ in my project. I have also tried to copy the precompiled files I downloaded from the web site above in /jni/ in my project.</p> <p>I have a simple class:</p> <pre><code>import android.graphics.*; public class PDFView { static { System.loadLibrary("mupdf"); } } </code></pre> <p>Every time I create an instance of this class the app crashes and it says "ExceptionInInitializerError" as well as "Couldn't load mupdf: findLibrary returned null" in the LogCat.</p> <p>I have also downloaded the android NDK and tried to compile the source myself. I get a missing mupdf.h error and fitz.h error. Just a whole list of errors and this seems overly complicated to included a library.</p> <p>I am working on a Mac in Snow Leopard. I think I'm on the right path needing to compile this as a binary, but it's been really frustrating having spent all this time learning about the NDK then it won't compile. Maybe I need an updated source. </p> <p>Can anyone help point me in the right direction?</p>
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      1. USFrancesco Vadicamo
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    1. COI'm reading through the compiling instructions for android, it says to edit local.properties, I see no such file in this downloaded source from mupdf.com.
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      1. USPaul
    2. COLet's start with your ndk-build errors. Can you show what happens when you ndk-build?
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      1. USMatthew Willis
    3. COThis is a bigger deal than just "loading a library" because the library has to be built for ARM and against the Android libraries. Trying to load the library will return null until you get the ndk part of this working.
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