Mix with NDK and SDK does not include Activities

[markus.wiesenbacher]

Hi guys,

I am trying to mix native code with java. The APK gets compiled and can be installed, but it crashes as soon as it starts. Error:

09-24 05:32:31.996: E/AndroidRuntime(1151): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{de.demo.can2s/de.demo.can2s.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "de.demo.can2s.MainActivity" on path: DexPathList[[zip file "/data/app/de.demo.can2s-2.apk"],nativeLibraryDirectories=[/data/app-lib/de.demo.can2s-2, /system/lib]]

09-24 05:32:31.996: E/AndroidRuntime(1151): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2110)

09-24 05:32:31.996: E/AndroidRuntime(1151): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)

09-24 05:32:31.996: E/AndroidRuntime(1151): at android.app.ActivityThread.access$800(ActivityThread.java:135)

09-24 05:32:31.996: E/AndroidRuntime(1151): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)

09-24 05:32:31.996: E/AndroidRuntime(1151): at android.os.Handler.dispatchMessage(Handler.java:102)

09-24 05:32:31.996: E/AndroidRuntime(1151): at android.os.Looper.loop(Looper.java:136)

09-24 05:32:31.996: E/AndroidRuntime(1151): at android.app.ActivityThread.main(ActivityThread.java:5001)

09-24 05:32:31.996: E/AndroidRuntime(1151): at java.lang.reflect.Method.invokeNative(Native Method)

09-24 05:32:31.996: E/AndroidRuntime(1151): at java.lang.reflect.Method.invoke(Method.java:515)

09-24 05:32:31.996: E/AndroidRuntime(1151): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)

09-24 05:32:31.996: E/AndroidRuntime(1151): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)

09-24 05:32:31.996: E/AndroidRuntime(1151): at dalvik.system.NativeStart.main(Native Method)

09-24 05:32:31.996: E/AndroidRuntime(1151): Caused by: java.lang.ClassNotFoundException: Didn't find class "de.demo.can2s.MainActivity" on path: DexPathList[[zip file "/data/app/de.demo.can2s.apk"],nativeLibraryDirectories=[/data/app-lib/de.demo.can2s, /system/lib]]

09-24 05:32:31.996: E/AndroidRuntime(1151): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)

09-24 05:32:31.996: E/AndroidRuntime(1151): at java.lang.ClassLoader.loadClass(ClassLoader.java:497)

09-24 05:32:31.996: E/AndroidRuntime(1151): at java.lang.ClassLoader.loadClass(ClassLoader.java:457)

09-24 05:32:31.996: E/AndroidRuntime(1151): at android.app.Instrumentation.newActivity(Instrumentation.java:1061)

09-24 05:32:31.996: E/AndroidRuntime(1151): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2101)

09-24 05:32:31.996: E/AndroidRuntime(1151): ... 11 more

This is my maven-config:

<plugin>
 <groupId>com.simpligility.maven.plugins</groupId>
 <artifactId>android-maven-plugin</artifactId>
 <version>${android.plugin.version}</version>
 <extensions>true</extensions>
 
 <executions>
      <execution>
        <goals>
 <goal>ndk-build</goal>
        </goals>
        <configuration>
 <ndkFinalLibraryName>Sandbox</ndkFinalLibraryName>
 <target>CAN2S</target>
 <clearNativeArtifacts>false</clearNativeArtifacts>
 <attachNativeArtifacts>true</attachNativeArtifacts>
 <ndkArchitecture>armeabi-v7a</ndkArchitecture>
 <nativeLibrariesDirectory>${project.basedir}/libs</nativeLibrariesDirectory>
        </configuration>
      </execution>
    </executions>


 <configuration>
 <sdk>
 <platform>18</platform>
 <path>C:/android-sdks</path>
 </sdk>
 <ndk>
 <path>C:/android-ndk-r10e</path>
 </ndk>
 <dex>
 <jvmArguments>
 <jvmArgument>-Xms256m</jvmArgument>
 <jvmArgument>-Xmx4096m</jvmArgument>
 </jvmArguments>
 <coreLibrary>true</coreLibrary>
 </dex>
 <extractDuplicates>true</extractDuplicates>
 <attachJar>true</attachJar>
 <deleteConflictingFiles>true</deleteConflictingFiles>
 <nativeLibrariesDirectory>${project.basedir}/libs</nativeLibrariesDirectory>
        <androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
        <resourceDirectory>${project.basedir}/res</resourceDirectory>
        <assetsDirectory>${project.basedir}/assets</assetsDirectory>
    </configuration>
</plugin>

If I use Project->Android Tools->Export Signed Application Package in Eclipse, it works! The classes.dex is then much bigger!

Anyone already got this problem?

Many thanks and best regards

Markus

[William Ferguson]

Markus,

are you Proguarding? Make sure that you have excluded your Activity from being obfuscated.

William