Android 系统内置App JNI

说明

将Android应用作为系统内置遇到一些问题：

1. 一个是使用Android源码的mmm命令生成的JNI名字和使用NDK生成的JNI的名字是不一样的；
2. 另外就是AndroidManifest.xml中的targetSDKVersion不能低于运行版本。

JNI

Android mmm命令

......
No private recovery resources for TARGET_DEVICE sabresd_6dq
make: Entering directory /home/myzr/myandroid' Import includes file: out/target/product/sabresd_6dq/obj/SHARED_LIBRARIES/shutdown_intermediates/import_includes target thumb C: shutdown <= /home/myzr/myandroid/packages/apps/Shutdown/jni/shutdown.c target SharedLib: shutdown (out/target/product/sabresd_6dq/obj/SHARED_LIBRARIES/shutdown_intermediates/LINKED/shutdown.so) target Symbolic: shutdown (out/target/product/sabresd_6dq/symbols/system/lib/shutdown.so) Export includes file: /home/myzr/myandroid/packages/apps/Shutdown/jni/Android.mk -- out/target/product/sabresd_6dq/obj/SHARED_LIBRARIES/shutdown_intermediates/export_includes target Strip: shutdown (out/target/product/sabresd_6dq/obj/lib/shutdown.so) Install: out/target/product/sabresd_6dq/system/lib/shutdown.so make: Leaving directory /home/myzr/myandroid'

NDK 生成 JNI

$ $NDK/ndk-build
Android NDK: WARNING: APP_PLATFORM android-18 is larger than android:minSdkVersion 8 in ./AndroidManifest.xml
[armeabi] Compile thumb : shutdown <= shutdown.c
[armeabi] SharedLibrary : libshutdown.so
[armeabi] Install : libshutdown.so => libs/armeabi/libshutdown.so

shell命令修改文件名

root@android:/ # mv /system/lib/shutdown.so /system/lib/libshutdown.so

targetSDKVersion