將本機庫從android應用程序移動到系統lib並從應用程序訪問

Question

我已經用android ndk編譯了一個本機代碼。 現在，我不想將該庫保留為.apk的一部分，而是將其安裝在android系統（system / lib64）中，並從系統加載我的應用程序。 我將庫推送到system / lib64，並從android應用程序的lib文件夾中刪除了庫。 但是當我嘗試跑步時

"java.lang.UnsatisfiedLinkError: dlopen failed: library "something.so" not found"

以下是我的makefile

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE_TAGS := eng
LOCAL_C_INCLUDES += $(LOCAL_PATH) $(LOCAL_PATH)/Include
LOCAL_SRC_FILES := ABCProtocol/ABCProtocol.c ABCProtocol/DatalinkLayer.c ABCProtocol/PhysicalLayer.c
LOCAL_MODULE := libABCXYZProtocol
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)

LOCAL_MODULE_TAGS := eng
LOCAL_C_INCLUDES += $(LOCAL_PATH) $(LOCAL_PATH)/$(KERNEL_DIR)/include $(LOCAL_PATH)/Include $(LOCAL_PATH)/Util $(LOCAL_PATH)/Include/Linux/XYZ $(LOCAL_PATH)/ABCProtocol
LOCAL_SRC_FILES := Linux/XYZ/ABCXYZLinux.c Util/Util.c Util/Logger.c
#LOCAL_CFLAGS += -Wno-error=format-security
LOCAL_CFLAGS += -w
LOCAL_MODULE := libABCXYZWrapper
LOCAL_SHARED_LIBRARIES :=libABCXYZProtocol
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS) 
LOCAL_MODULE_TAGS := eng
LOCAL_MODULE:=com_example_reader_ABCXYZappnote_NativeLibrary
LOCAL_SRC_FILES:=com_example_reader_ABCXYZappnote_NativeLibrary.c
LOCAL_C_INCLUDES += $(LOCAL_PATH) $(LOCAL_PATH)/$(KERNEL_DIR)/include $(LOCAL_PATH)/Include $(LOCAL_PATH)/Util $(LOCAL_PATH)/Include/Linux/XYZ
#LOCAL_CFLAGS += -DANDROID
LOCAL_SHARED_LIBRARIES:=libc libABCXYZWrapper libABCXYZProtocol
include $(BUILD_SHARED_LIBRARY)

Answer 1

不允許應用程序從系統庫位置訪問非公共API： https : //developer.android.com/about/versions/nougat/android-7.0-changes.html#ndk 。 您的應用程序使用的庫必須與您的應用程序打包在一起。

您為什么仍然要將它們放在/ system / lib中？