android-ndk - Android NDK：构建我的静态库

Question

我在 jni 文件夹中有这些文件：

• 安卓.mk

• 应用程序.mk

• m_lanczos.c

• m_lanczos.h

• 分辨率.cpp

我只想在 resolution.cpp 中使用我的库，例如：

#include"m_lanczos.h"

我还需要在 Android.mk 中添加什么？谢谢！

 LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)

LOCAL_MODULE := super
LOCAL_SRC_FILES := sresolution.cpp 
LOCAL_LDLIBS +=  -llog -ldl

include $(BUILD_SHARED_LIBRARY)

Answer 1

有两件事可能是错误的：

1. 您忘记编译 m_lanczos.c：
   那么您的 Android.mk 应该如下所示：

   LOCAL_PATH := $(call my-dir)  
   include $(CLEAR_VARS)  
   
   LOCAL_MODULE := super  
   LOCAL_SRC_FILES := sresolution.cpp m_lanczos.c  
   LOCAL_LDLIBS +=  -llog -ldl  
   
   include $(BUILD_SHARED_LIBRARY)  
   

2. m_lanczos 是一个 STATIC_LIBRARY：
   然后你必须构建它并包含它：

   LOCAL_PATH := $(call my-dir) 
   
   include $(CLEAR_VARS)       
   LOCAL_MODULE := m_lanczos
   LOCAL_SRC_FILES := m_lanczos.c  
   LOCAL_LDLIBS +=           #needed librarys for m_lanczos, probably nothing       
   include $(BUILD_STATIC_LIBRARY) 
   
   include $(CLEAR_VARS)         
   LOCAL_MODULE := super  
   LOCAL_SRC_FILES := sresolution.cpp
   LOCAL_LDLIBS +=  -llog -ldl  
   LOCAL_STATIC_LIBRARIES := m_lanczos
   include $(BUILD_SHARED_LIBRARY)
   

但我认为这将是第一个，我希望我有所帮助:)