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当我尝试将空间数据库添加到我的 android studio projet 时遇到问题。如前所述，我按照本教程https://www.gaia-gis.it/fossil/libspatialite/wiki?name=spatialite-android-tutorial我在我的项目中添加了两个文件夹：

  1. 本地空间库：它们位于我的 App 目录中名为 libs 的文件夹中，并包含用于不同平台的多个文件夹，这些文件夹包含主库，称为 libspatialite.so

  2. 包含在 jsqlite 包中的基本 API 类

尽管如此，我还是收到了这个错误：

11-13 13:52:17.358    1853-1853/liara.geodatamining W/System.err﹕ Unable to load sqlite_jni: java.lang.UnsatisfiedLinkError: Couldn't load proj from loader dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/liara.geodatamining-2.apk"],nativeLibraryDirectories=[/data/app-lib/liara.geodatamining-2, /system/lib]]]: findLibrary returned null
11-13 13:52:17.358    1853-1853/liara.geodatamining W/dalvikvm﹕ No implementation found for native Ljsqlite/Database;.internal_init:()V
11-13 13:52:17.358    1853-1853/liara.geodatamining W/dalvikvm﹕ Exception Ljava/lang/UnsatisfiedLinkError; thrown while initializing Ljsqlite/Database;
11-13 13:52:17.358    1853-1853/liara.geodatamining W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xb2d19b20)
11-13 13:52:17.358    1853-1853/liara.geodatamining E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: liara.geodatamining, PID: 1853
    java.lang.UnsatisfiedLinkError: Native method not found: jsqlite.Database.internal_init:()V
            at jsqlite.Database.internal_init(Native Method)
            at jsqlite.Database.<clinit>(Database.java:951)
            at liara.geodatamining.map.onCreate(map.java:116)
            at android.app.Activity.performCreate(Activity.java:5231)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)

我错过了什么吗？

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2 回答 2

1

if you're only using .so files and not compiling any C/C++ sources yourself, you don't need the NDK.

With Android Studio, the place where you drop .so files isn't the same than with eclipse. Now it's inside jniLibs/<ABI> where ABI can be armeabi, armeabi-v7a, x86, x86_64, mips, mips64, arm64-v8a.

You can check that your .so files are properly integrated by opening your APK as a zip file and simply checking that your .so files are inside lib/<abi> folders.

于 2015-02-06T17:15:42.483 回答
1

这听起来很像您没有为您的模拟器包含适当版本​​的 NDK。根据Android 文档，以下平台支持 Android NDK

  • 手臂
  • ARM-NEON
  • x86
  • MIPS

迄今为止，真实设备最常见的是 ARM (armeabi-v7a)。实际上，对于已发布的构建，除了此之外不包含任何内容可能几乎没有损失。但是模拟器通常在 x86 上工作。我知道我有一个用于 x86 的 NDK 文件，每次我准备好发布时我都会删除它，并在我想使用我的桌面模拟器时重新添加。

于 2015-02-05T21:37:57.837 回答