Include so library in apk in android studio

Question

I am trying my hands on developing a simple android application in which I am trying to use sqlcipher  which uses  so libraries internally  I have read the documentation on how to use sqlcipher with android app  I have followed the steps and it compiles without any error  But  at runtime it throws UnsatisfiedLinkError   Googling around for it  I found that  gradle doesn t support  so libraries yet  but I found a hack here which I am trying to use  But it throws compile time error at line  40 on the gist which is   tasks withType com android build gradle PackageApplicationTask    pkgTask - gt      pkgTask jniDir new File buildDir   native-libs       saying      Could not find property  com  on Project  MyProject    Here I am posting code from my build gradle file   buildscript       repositories           maven   url  http   repo1 maven org maven2              dependencies           classpath  com android tools build gradle 0 4          apply plugin   android   dependencies       compile files  libs android-support-v4 jar       compile files  libs commons-codec jar       compile files  libs guava-r09 jar       compile files  libs sqlcipher jar      targetCompatibility   1 6 sourceCompatibility   1 6  android       target    android-14       compileSdkVersion 17     buildToolsVersion  17 0 0       defaultConfig           minSdkVersion 9         targetSdkVersion 16               task copyNativeLibs type  Copy        from new File project   MyProject   buildDir   native-libs      include       so        into new File buildDir   native-libs      tasks withType Compile    compileTask - gt  compileTask dependsOn copyNativeLibs    clean dependsOn  cleanCopyNativeLibs   tasks withType com android build gradle PackageApplicationTask    pkgTask - gt      pkgTask jniDir new File buildDir   native-libs       Can  anybody please help me on what I have done wrong or what should I do to include those  so libraries in my apk   As I am new to android development and gradle  please apologize me if I have misunderstood something

User · Accepted Answer

I had the same problem  Check out the comment in https   gist github com khernyo 4226923 comment-812526  It says      for gradle android plugin v0 3 use  com android build gradle tasks PackageApplication    That should fix your problem

User · Answer

To include native libraries you need    create  jar  file with special structure containing   so  files  include that file in dependencies list    To create jar file  use the following snippet   task nativeLibsToJar type  Zip  description   create a jar archive of the native libs         destinationDir file   buildDir native-libs       baseName  native-libs      extension  jar      from fileTree dir   libs   include        so       into  lib      tasks withType Compile        compileTask - gt  compileTask dependsOn nativeLibsToJar      To include resulting file  paste the following line into  dependencies  section in  build gradle  file   compile fileTree dir    buildDir native-libs   include   native-libs jar

User · Answer

I ve tried the solution presented in the accepted answer and it did not work for me  I wanted to share what DID work for me as it might help someone else  I ve found this solution here   Basically what you need to do is put your  so files inside a a folder named lib  Note  it is not libs and this is not a mistake   It should be in the same structure it should be in the APK file   In my case it was  Project   --lib   -- --armeabi   -- -- -- so files   So I ve made a lib folder and inside it an armeabi folder where I ve inserted all the needed  so files  I then zipped the folder into a  zip  the structure inside the zip file is now lib armeabi   so  I renamed the  zip file into armeabi jar and added the line compile fileTree dir   libs   include     jar   into dependencies    in the gradle s build file   This solved my problem in a rather clean way

[android] Include .so library in apk in android studio

Examples related to android

Examples related to gradle

Examples related to android-studio