说明
将Android应用作为系统内置遇到一些问题：
- 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；
- 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_6dqmake: Entering directory `/home/myzr/myandroid'Import includes file: out/target/product/sabresd_6dq/obj/SHARED_LIBRARIES/shutdown_intermediates/import_includestarget thumb C: shutdown <= /home/myzr/myandroid/packages/apps/Shutdown/jni/shutdown.ctarget 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_includestarget Strip: shutdown (out/target/product/sabresd_6dq/obj/lib/shutdown.so)Install: out/target/product/sabresd_6dq/system/lib/shutdown.somake: 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