效果.gif
簡(jiǎn)介
日益奔放的Android生存環(huán)境下,工作中出現(xiàn)了各種各樣稀奇古怪的需求,項(xiàng)目中對(duì)接各部門(mén)各種各樣的三方庫(kù)也成了現(xiàn)在的常見(jiàn)需求,這里就三方So庫(kù)對(duì)接做個(gè)簡(jiǎn)單的例子
需求
添加三方So 庫(kù) 根據(jù).h(頭文件)調(diào)用三方So庫(kù)c/c++代碼
環(huán)境
- Android Studio 4.1.3
- Gradle 4.1.3
- buildToolsVersion 30.0.3
- Cmake 3.10.2
實(shí)現(xiàn)
1.gradle.bulid 配置
plugins {
id 'com.android.application'
id 'kotlin-android'
}
android {
compileSdkVersion 31
buildToolsVersion "30.0.3"
defaultConfig {
applicationId "com.wkq.jnidemo"
minSdkVersion 21
targetSdkVersion 31
versionCode 1
versionName "1.0"
//設(shè)置NDK版本
ndkVersion "21.1.6352462"
// gradle 執(zhí)行的任務(wù)名字
externalNativeBuild {
cmake {
cppFlags ""
abiFilters "armeabi-v7a"
}
}
ndk{
abiFilters 'armeabi-v7a'
}
}
// 處理 gradle 4.0+
// 異常: More than one file was found with OS independent path 'lib/armeabi-v7a/libHancNetSDK.so'. If you are using jniLibs and CMake IMPORTED targets
sourceSets {
main{
jniLibs.srcDirs=['libs']
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
externalNativeBuild {
cmake {
path "CMakeLists.txt"
version "3.10.2"
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.7.0'
implementation 'androidx.appcompat:appcompat:1.4.0'
implementation 'com.google.android.material:material:1.4.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.2'
}
注意
Gradle4.+搭配Cmake中add_library引用三方庫(kù)的IMPORTED屬性會(huì)異常,需要配置Gradle配置一下
異常.png
gradle4.+ 搭配add_library(xx SHARED IMPORTED )異常.png
2.導(dǎo)入so和.h頭文件
頭文件so導(dǎo)入.png
3.配置CMakeLists.text
注意
因?yàn)镃make中的文件位置配置,我沒(méi)搞明白,所以將CMakelists.text移動(dòng)了出來(lái)放在了App目錄下
# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html
# Sets the minimum version of CMake required to build the native library.
cmake_minimum_required(VERSION 3.10.2)
#設(shè)置工程名字
project("jnidemo")
#add_library target_include_directories 需要成對(duì)出現(xiàn)
add_library( # Sets the name of the library.
network
# Sets the library as a shared library.
SHARED
# Provides a relative path to your source file(s).
src/main/cpp/native-lib.cpp)
# 指向.H頭文件位置
target_include_directories(
network
PRIVATE
${CMAKE_SOURCE_DIR}/src/main/cpp/include
)
SET (LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/lib)
# 添加第三方庫(kù)
add_library(HancNetSDK
# 設(shè)置引入的函數(shù)庫(kù)類型為靜態(tài)庫(kù)
SHARED
# 表示引入第三方靜態(tài)庫(kù)
IMPORTED)
# 配置第三方庫(kù)鏈接
set_target_properties(
HancNetSDK
PROPERTIES
IMPORTED_LOCATION
${CMAKE_SOURCE_DIR}/src/main/jniLibs/${ANDROID_ABI}/libHancNetSDK.so)
find_library( # Sets the name of the path variable.
log-lib
# Specifies the name of the NDK library that
# you want CMake to locate.
log)
target_link_libraries( # Specifies the target library.
network
HancNetSDK
# Links the target library to the log library
# included in the NDK.
${log-lib})
4 .h文件,cpp文件 Jni工具類
頭文件.png
cpp文件.png
package com.wkq.jnidemo;
/**
* Jni 工具類
*/
public class JniUtil {
static {
System.loadLibrary("network");
System.loadLibrary("HancNetSDK");
}
public static native String stringFromJNI();
public static native boolean HancNetInit();
public static native int netConnect(String ip,int port,String linkCmd,int timeout,int cmdSize,int dwUser);
}
總結(jié)
這個(gè)Demo簡(jiǎn)單的測(cè)試了一下根據(jù)頭文件調(diào)用三方So路的Jni 調(diào)用方案,中間各種亂七八糟糟心事兒不少,現(xiàn)存方式有MK 和Cmake兩種方案這里選取了Cmake方案,后續(xù)還有很多坑大家一起挨著吧,就這
注意
Gradle 4.+和Cmake add_library 的IMPORTE 的異常
歡迎點(diǎn)贊!!!
