Android使用7-zip库

一.去http://www.7-zip.org/sdk.html下载源代码

1.在download页面http://www.7-zip.org/download.html，选Download p7zip for Linux (Posix) (x86 binaries and source code):里的p7zip at SourceForge

2.“p7zip at sourceForge” 点击进去

3. Tab里选“Files”页面：

4.点击上图的“Download p7zip_16.02_src_all.tar.bz2(4.2MB)”进行下载，下载后的文件名为：

"p7zip_16.02_src_all.tar.bz2",解压成"p7zip_16.02"文件夹。

可以打开根目录下的“README”查看帮助文档。

二.在Android Studio中新建Android工程，新建时需要将“Include C++ support”勾上

当然，你的Android Studio NDK开发环境要提前配置好，需要安装NDK、CMake、LLDB

CMake: 外部构建工具。如果你准备只使用 ndk-build 的话，可以不使用它。LLDB: Android Studio上面调试本地代码的工具。

1.在project\app\src\main\cpp\下建一子目录“p7zip”,用来存放c/c++代码。

2.将7-zip源码目录 p7zip_16.02 下的C与CPP两个目录拷到工程中的project\app\src\main\cpp\p7zip 目录下

三.打开“p7zip_16.02\DOC\MANUAL\cmdline\index.htm”，查看命令行命令的使用

点击“Commands”

然后点击"a",这个是将文件添加到存档的意思，即哪些文件要压缩

我们可以根据 “7z a archive2.zip .\subdir\*”这个命令示例来执行压缩

然后再回到“Commands”页面，选"x"

我们可以根据“7z x archive.zip -oc:\soft *.cpp -r”这个命令示例来执行解压缩

四.创建native函数

1.新建java类：ZipUtils.java

public class ZipUtils {
    public static native int excuteCommand(String command);

}

2.根据.java生成.h的本地头文件

在Android studio的“Terminal”命令行面板里执行javah命令，先cd 到project\app\src\main\java路径下，再执行

“javah com.example.wilson.zipdemo.zipdemo.ZipUtils”

在目录树上会立即看到已经生成“com_example_wilson_zipdemo_zipdemo_ZipUtils.h”文件

/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class com_example_wilson_zipdemo_zipdemo_ZipUtils */

#ifndef _Included_com_example_wilson_zipdemo_zipdemo_ZipUtils
#define _Included_com_example_wilson_zipdemo_zipdemo_ZipUtils
#ifdef __cplusplus
extern "C" {
#endif
/*
 * Class:     com_example_wilson_zipdemo_zipdemo_ZipUtils
 * Method:    excuteCommand
 * Signature: (Ljava/lang/String;)I
 */
JNIEXPORT jint JNICALL Java_com_example_wilson_zipdemo_zipdemo_ZipUtils_excuteCommand
  (JNIEnv *, jclass, jstring);

#ifdef __cplusplus
}
#endif
#endif

将它移到 project\app\src\main\cpp\p7zip目录

3.打开 project\app\src\main\cpp\p7zip\CPP\7zip\UI\Console\MainAr.cpp


int MY_CDECL main
(
  #ifndef _WIN32
  int numArgs, char *args[]
  #endif
)
{
  g_ErrStream = &g_StdErr;
  g_StdStream = &g_StdOut;

  NT_CHECK

  NConsoleClose::CCtrlHandlerSetter ctrlHandlerSetter;
  int res = 0;
  
  try
  {
    res = Main2(
    #ifndef _WIN32
    numArgs, args
    #endif
    );
  }
......
}

这个cpp文件里有main函数，即7-zip的程序入口函数，因为执行命令行命令时，实际上就是执行main函数，所以我们可以根据main函数来编写我们的native调用函数,这样从java端发送一行命令给native端执行，就如在命令行里执行了一条命令一样。

3.在project\app\src\main\cpp\p7zip目录下new一个c/c++ source file,取名“p7zip”,生成p7zip.cpp文件。再编写相关本地代码：

//
// Created by wilson on 2017/5/23.
//
#include "com_example_wilson_zipdemo_zipdemo_ZipUtils.h"
#include "7zTypes.h"
#include <jni.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include "android/log.h"

#define LOG_ENABLE
#ifdef LOG_ENABLE
#define LOG_TAG "p7zip_jni"
#define LOGI(...) do {__android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__);} while(0)
#define LOGD(...) do {__android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__);} while(0)
#define LOGE(...) do {__android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__);} while(0)
#else
...
#endif

#define ARGV_LEN_MAX 256
#define ARGC_MAX 32

extern int MY_CDECL main(
#ifndef _WIN32
        int numArgs, const char *args[]
#endif
);

static bool str2args(const char* s,char argv[][ARGV_LEN_MAX],int* argc) {
    bool in_token, in_container, escaped;
    bool ret;
    char container_start, c;
    int len, i;
    int index = 0;
    int arg_count = 0;

    ret = true;
    container_start = 0;
    in_token = false;
    in_container = false;
    escaped = false;

    len = strlen(s);
    for (i = 0; i < len; i++) {
        c = s[i];
        switch (c) {
            case ' ':
            case '\t':
            case '\n':

                if (!in_token)
                    continue;
                if (in_container) {
                    argv[arg_count][index++] = c;
                    continue;
                }
                if (escaped) {
                    escaped = false;
                    argv[arg_count][index++] = c;
                    continue;
                }
                /* if reached here, we're at end of token */
                in_token = false;
                argv[arg_count++][index] = '\0';
                index = 0;
                break;
                /* handle quotes */
            case '\'':
            case '\"':

                if (escaped) {
                    argv[arg_count][index++] = c;
                    escaped = false;
                    continue;
                }
                if (!in_token) {
                    in_token = true;
                    in_container = true;
                    container_start = c;
                    continue;
                }
                if (in_container) {
                    if (c == container_start) { //container end
                        in_container = false;
                        in_token = false;
                        argv[arg_count++][index] = '\0';
                        index = 0;
                        continue;
                    } else { //not the same as contain start char
                        argv[arg_count][index++] = c;
                        continue;
                    }
                }
                LOGE("Parse Error! Bad quotes\n");
                ret = false;
                break;
            case '\\':

                if (in_container && s[i + 1] != container_start) {
                    argv[arg_count][index++] = c;
                    continue;
                }
                if (escaped) {
                    argv[arg_count][index++] = c;
                    continue;
                }
                escaped = true;
                break;
            default: //normal char

                if (!in_token) {
                    in_token = true;
                }
                argv[arg_count][index++] = c;
                if (i == len - 1) { //reach the end
                    argv[arg_count++][index++] = '\0';
                }
                break;
        }
    }
    *argc = arg_count;

    if (in_container) {
        LOGE("Parse Error! Still in container\n");
        ret = false;
    }
    if (escaped) {
        LOGE("Parse Error! Unused escape (\\)\n");
        ret = false;
    }
    return ret;
}


JNIEXPORT jint JNICALL Java_com_example_wilson_zipdemo_zipdemo_ZipUtils_excuteCommand
        (JNIEnv *env, jclass jzz, jstring command){
    int ret = -1;
    const char* ccommand = (const char*)env->GetStringUTFChars(command,NULL);

    LOGI("start[%s]",ccommand);

    int argc = 0;
    char temp[ARGC_MAX][ARGV_LEN_MAX] = {0};
    char* argv[ARGC_MAX] = {0};

    if (str2args(ccommand,temp,&argc)==false) {
        return 7;
    }

    for (int i=0;i<argc;i++) {
        argv[i] = temp[i];
        LOGD("arg[%d]:[%s]",i,argv[i]);
    }

    ret = main(argc,(const char**)argv);

    LOGI("end[%s]",ccommand);

    env->ReleaseStringUTFChars(command,ccommand);

    return ret;
}

五.编写CMakeLists.txt

新建工程后，默认使用CMAKE编译C++。编写时特别要注意，不是所有的.cpp都需要，因为有部分是GUI需要的，而且要注意有些预设定的宏必须指定，比如宏：UNIX_USE_WIN_FILE，否则编译会出错（可以参考“\src\main\cpp\p7zip\CPP\ANDROID\7za\jni\Android.mk”）.

# 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 3.4.1)

# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.

set(LOCAL_PATH src/main/cpp/p7zip)

include_directories(${LOCAL_PATH}/C ${LOCAL_PATH}/CPP ${LOCAL_PATH}/CPP/myWindows ${LOCAL_PATH}/CPP/include_windows ${LOCAL_PATH}/CPP/Windows ${LOCAL_PATH}/CPP/Common ${LOCAL_PATH}/CPP/7zip/Common ${LOCAL_PATH}/CPP/7zip/UI/Agent ${LOCAL_PATH}/CPP/7zip/UI/FileManager)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DANDROID_NDK -fexceptions -DNDEBUG -D_REENTRANT -DENV_UNIX -DEXTERNAL_CODECS -DUNICODE -D_UNICODE -DUNIX_USE_WIN_FILE")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DANDROID_NDK -fexceptions -DNDEBUG -D_REENTRANT -DENV_UNIX -DEXTERNAL_CODECS -DUNICODE -D_UNICODE -DUNIX_USE_WIN_FILE")

file(GLOB my_c_path ${LOCAL_PATH}/C/*.c)
file(GLOB my_archive_common_path src/main/cpp/p7zip/CPP/7zip/Archive/Common/*.cpp)
file(GLOB my_archive_7z_path src/main/cpp/p7zip/CPP/7zip/Archive/7z/*.cpp)
file(GLOB my_archive_cab_path src/main/cpp/p7zip/CPP/7zip/Archive/Cab/*.cpp)
file(GLOB my_archive_chm_path src/main/cpp/p7zip/CPP/7zip/Archive/Chm/*.cpp)
file(GLOB my_archive_iso_path src/main/cpp/p7zip/CPP/7zip/Archive/Iso/*.cpp)
file(GLOB my_archive_nsis_path src/main/cpp/p7zip/CPP/7zip/Archive/Nsis/*.cpp)
file(GLOB my_archive_rar_path src/main/cpp/p7zip/CPP/7zip/Archive/Rar/*.cpp)
file(GLOB my_archive_tar_path src/main/cpp/p7zip/CPP/7zip/Archive/Tar/*.cpp)
file(GLOB my_archive_udf_path src/main/cpp/p7zip/CPP/7zip/Archive/Udf/*.cpp)
file(GLOB my_archive_vim_path src/main/cpp/p7zip/CPP/7zip/Archive/Wim/*.cpp)
file(GLOB my_archive_zip_path src/main/cpp/p7zip/CPP/7zip/Archive/Zip/*.cpp)

file(GLOB my_7zip_common_path src/main/cpp/p7zip/CPP/7zip/Common/*.cpp)
file(GLOB my_7zip_crypto_path src/main/cpp/p7zip/CPP/7zip/Crypto/*.cpp)
file(GLOB my_7zip_ui_path src/main/cpp/p7zip/CPP/7zip/UI/Console/*.cpp)
file(GLOB my_common_path src/main/cpp/p7zip/CPP/Common/*.cpp)

add_library( # Sets the name of the library.
             p7zip

             # Sets the library as a shared library.
             SHARED

             # Provides a relative path to your source file(s).
             ${my_c_path}
             ${my_archive_common_path}
             ${my_archive_7z_path}
             ${my_archive_cab_path}
             ${my_archive_chm_path}
             ${my_archive_iso_path}
             ${my_archive_nsis_path}
             ${my_archive_rar_path}
             ${my_archive_tar_path}
             ${my_archive_udf_path}
             ${my_archive_vim_path}
             ${my_archive_zip_path}
             ${my_7zip_common_path}
             ${my_7zip_crypto_path}
             ${my_7zip_ui_path}
             ${my_common_path}
             src/main/cpp/p7zip/CPP/7zip/Archive/ApmHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/ArHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/ArjHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/Bz2Handler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/ComHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/CpioHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/CramfsHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/DeflateProps.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/DmgHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/ElfHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/ExtHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/FatHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/FlvHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/GptHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/GzHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/HandlerCont.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/HfsHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/IhexHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/LzhHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/LzmaHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/MachoHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/MbrHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/MslzHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/MubHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/NtfsHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/PeHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/PpmdHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/QcowHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/RpmHandler.cpp

             src/main/cpp/p7zip/CPP/7zip/Archive/SplitHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/SquashfsHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/SwfHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/UefiHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/VdiHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/VhdHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/VmdkHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/XarHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/XzHandler.cpp
             src/main/cpp/p7zip/CPP/7zip/Archive/ZHandler.cpp

             src/main/cpp/p7zip/CPP/7zip/Compress/Bcj2Coder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/Bcj2Register.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/BcjCoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/BcjRegister.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/BitlDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/BranchMisc.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/BranchRegister.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/ByteSwap.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/BZip2Crc.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/BZip2Decoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/BZip2Encoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/BZip2Register.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/CodecExports.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/CopyCoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/CopyRegister.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/Deflate64Register.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/DeflateDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/DeflateEncoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/DeflateRegister.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/DeltaFilter.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/ImplodeDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/ImplodeHuffmanDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/LzhDecoder.cpp

             src/main/cpp/p7zip/CPP/7zip/Compress/Lzma2Decoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/Lzma2Encoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/Lzma2Register.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/LzmaDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/LzmaEncoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/LzmaRegister.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/LzmsDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/LzOutWindow.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/LzxDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/PpmdDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/PpmdEncoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/PpmdRegister.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/PpmdZip.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/QuantumDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/Rar1Decoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/Rar2Decoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/Rar3Decoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/Rar3Vm.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/Rar5Decoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/RarCodecsRegister.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/ShrinkDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/XpressDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/ZDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/ZlibDecoder.cpp
             src/main/cpp/p7zip/CPP/7zip/Compress/ZlibEncoder.cpp

             src/main/cpp/p7zip/CPP/7zip/UI/Common/ArchiveCommandLine.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/ArchiveName.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/ArchiveOpenCallback.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/Bench.cpp

             src/main/cpp/p7zip/CPP/7zip/UI/Common/DefaultName.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/EnumDirItems.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/Extract.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/ExtractingFilePath.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/HashCalc.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/LoadCodecs.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/OpenArchive.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/PropIDUtils.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/SetProperties.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/SortUtils.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/TempFiles.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/Update.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/UpdateAction.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/UpdateCallback.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/UpdatePair.cpp
             src/main/cpp/p7zip/CPP/7zip/UI/Common/UpdateProduce.cpp

             src/main/cpp/p7zip/CPP/Windows/COM.cpp
             src/main/cpp/p7zip/CPP/Windows/DLL.cpp
             src/main/cpp/p7zip/CPP/Windows/ErrorMsg.cpp
             src/main/cpp/p7zip/CPP/Windows/FileDir.cpp
             src/main/cpp/p7zip/CPP/Windows/FileFind.cpp
             src/main/cpp/p7zip/CPP/Windows/FileIO.cpp
             src/main/cpp/p7zip/CPP/Windows/FileName.cpp
             src/main/cpp/p7zip/CPP/Windows/PropVariantConv.cpp
             src/main/cpp/p7zip/CPP/Windows/PropVariant.cpp
             src/main/cpp/p7zip/CPP/Windows/PropVariantUtils.cpp
             #src/main/cpp/p7zip/CPP/Windows/Registry.cpp
             src/main/cpp/p7zip/CPP/Windows/Synchronization.cpp
             src/main/cpp/p7zip/CPP/Windows/System.cpp
             src/main/cpp/p7zip/CPP/Windows/TimeUtils.cpp


             src/main/cpp/p7zip/CPP/myWindows/myAddExeFlag.cpp
             src/main/cpp/p7zip/CPP/myWindows/mySplitCommandLine.cpp
             src/main/cpp/p7zip/CPP/myWindows/wine_date_and_time.cpp

             src/main/cpp/p7zip/p7zip.cpp )

# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.

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 )

# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.

target_link_libraries( # Specifies the target library.
                       p7zip

                       # Links the target library to the log library
                       # included in the NDK.
                       ${log-lib} )

六、配置模块的build.gradle：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.3"
    defaultConfig {
        applicationId "com.example.wilson.zipdemo.zipdemo"
        minSdkVersion 19
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        externalNativeBuild {
            cmake {
                cppFlags ""
            }
        }
        ndk {
            // Specifies the ABI configurations of your native
            // libraries Gradle should build and package with your APK.
            abiFilters 'armeabi-v7a'
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            jniDebuggable true
        }
    }
    externalNativeBuild {
        cmake {
            path "CMakeLists.txt"
        }
    }
    sourceSets.main {
        jniLibs.srcDir 'src/main/libs'
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    testCompile 'junit:junit:4.12'
}

上面只生成armeabi-v7a的so。

七、编译：

注意：在编译的过程中.有两个cpp会报错：src/main/cpp/p7zip/CPP/7zip/Archive/7z 目录下的：

7zHandler.cpp与7zExtract.cpp，都会报：

undefined reference to 'g_ExternalCodecs' 的错误

经查，主要由 src/main/cpp/p7zip/CPP/7zip/Common/CreateCoder.h中宏定义

#define EXTERNAL_CODECS_VARS2   (__externalCodecs.IsSet() ? &__externalCodecs : &g_ExternalCodecs)

将其改为：

#define EXTERNAL_CODECS_VARS2   ( &__externalCodecs)

即可，因为'g_ExternalCodecs' 与GUI相关，我们只用到命令行

八、测试

在manifest文件中要加上权限：

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

ZipUtils.java：

package com.example.wilson.zipdemo.zipdemo;

public class ZipUtils {
    public static native int excuteCommand(String command);

}

ZipProcess.java：

package com.example.wilson.zipdemo.zipdemo;

import android.app.ProgressDialog;
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.widget.Toast;

public class ZipProcess {
   
   /*
      0 No error 
      1 Warning (Non fatal error(s)). For example, one or more files were locked by some other application,
        so they were not compressed. 
      2 Fatal error 
      7 Command line error 
      8 Not enough memory for operation 
      255 User stopped the process 
   */
   private static final int RET_SUCCESS = 0;
   private static final int RET_WARNING = 1;
   private static final int RET_FAULT = 2;
   private static final int RET_COMMAND = 7;
   private static final int RET_MEMORY = 8;
   private static final int RET_USER_STOP = 255;
   
   Context context = null;
   Thread thread = null;
   ProgressDialog dialog = null;
   Handler handler = null;
   String command = null;
   
   public ZipProcess(Context context, String command) {
      // TODO Auto-generated method stub
      this.context = context;
      this.command = command;
      
      dialog = new ProgressDialog(context);
      dialog.setTitle(R.string.progress_title);
      dialog.setMessage(context.getText(R.string.progress_message));
      dialog.setCancelable(false);
      
      handler = new Handler(new Handler.Callback() {
         @Override
         public boolean handleMessage(Message msg) {
            // TODO Auto-generated method stub
            dialog.dismiss();

            int retMsgId = R.string.msg_ret_success;
            switch (msg.what) {
            case RET_SUCCESS:
               retMsgId = R.string.msg_ret_success;
               break;
            case RET_WARNING:
               retMsgId = R.string.msg_ret_warning;
               break;
            case RET_FAULT:
               retMsgId = R.string.msg_ret_fault;
               break;
            case RET_COMMAND:
               retMsgId = R.string.msg_ret_command;
               break;
            case RET_MEMORY:
               retMsgId = R.string.msg_ret_memmory;
               break;
            case RET_USER_STOP:
               retMsgId = R.string.msg_ret_user_stop;
               break;
            default:
               break;
            }
            Toast.makeText(ZipProcess.this.context, retMsgId, Toast.LENGTH_SHORT).show();
            
            return false;
         }
      });
      
      thread = new Thread(){
         @Override
         public void run() {
            // TODO Auto-generated method stub
            int ret = ZipUtils.excuteCommand(ZipProcess.this.command);
            handler.sendEmptyMessage(ret); //send back return code
            super.run();
         }
      };
   }
   
   void start(){
      dialog.show();
      thread.start();
   }
   
}

MainActivity.java:

package com.example.wilson.zipdemo.zipdemo;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

public class MainActivity extends AppCompatActivity {

    // Used to load the 'native-lib' library on application startup.
    static {
        System.loadLibrary("p7zip");
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

    }

    public void compress(View v) {
        compressProcess();
    }

    public void decompress(View v) {
        decompressProcess();
    }

    private void compressProcess(){
        StringBuilder sbCmd = new StringBuilder("7z a ");

//        sbCmd.append("-t7z ");   //7z a -t7z = 指定压缩后的文件类型

        sbCmd.append("'/storage/emulated/0/7z_demo/7zdemo.zip' "); //7z a '/storage/emulated/0/7z_demo/7zdemo.zip'
//        sbCmd.append("'/storage/emulated/0/wifi_config.log' "); //7z a '//storage/emulated/0/7z_demo/7zdemo.zip' '/storage/emulated/0/wifi_config.log' = 文件的压缩
        sbCmd.append("'/storage/emulated/0/zp_7100' "); //7z a '//storage/emulated/0/7z_demo/7zdemo.zip' '/storage/emulated/0/zp_7100' = 文件夹的压缩


        new ZipProcess(MainActivity.this, sbCmd.toString()).start();
    }

    private void decompressProcess() {
        StringBuilder sbCmd = new StringBuilder("7z ");
        sbCmd.append("x ");    //7z x

        //input file path
        sbCmd.append("'/storage/emulated/0/7z_demo/7zdemo.zip' "); //7z x '/storage/emulated/0/7z_demo/7zdemo.zip'
        //output path
        sbCmd.append("'-o"   + "/storage/emulated/0/' ");  //7z x '/storage/emulated/0/7z_demo/7zdemo.zip' '-o/storage/emulated/0/'

        sbCmd.append("-aoa "); //-aoa Overwrite All existing files without prompt.
                                //7z x '/storage/emulated/0/7z_demo/7zdemo.zip' '-o/storage/emulated/0/' -aoa

        new ZipProcess(MainActivity.this, sbCmd.toString()).start();
    }

}

activity_main.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center_horizontal"
    tools:context="com.example.wilson.zipdemo.zipdemo.MainActivity">

    <Button
        android:layout_width="200dp"
        android:layout_height="100dp"
        android:text="压缩"
        android:onClick="compress"/>

    <Button
        android:layout_width="200dp"
        android:layout_height="100dp"
        android:text="解压缩"
        android:onClick="decompress"
        tools:layout_editor_absoluteY="111dp"
        tools:layout_editor_absoluteX="0dp" />

</LinearLayout>

最后，在小米5S上测试成功。

最后编辑于：2017.12.07 15:52:15

人面猴
序言：七十年代末，一起剥皮案震惊了整个滨河市，随后出现的几起案子，更是在滨河造成了极大的恐慌，老刑警刘岩，带你破解...
沈念sama阅读 158,425评论 4赞 361
死咒
序言：滨河连续发生了三起死亡事件，死亡现场离奇诡异，居然都是意外死亡，警方通过查阅死者的电脑和手机，发现死者居然都...
沈念sama阅读 67,058评论 1赞 291
救了他两次的神仙让他今天三更去死
文/潘晓璐我一进店门，熙熙楼的掌柜王于贵愁眉苦脸地迎上来，“玉大人，你说我怎么就摊上这事。” “怎么了？”我有些...
开封第一讲书人阅读 108,186评论 0赞 243
道士缉凶录：失踪的卖姜人
文/不坏的土叔我叫张陵，是天一观的道长。经常有香客问我，道长，这世上最难降的妖魔是什么？我笑而不...
开封第一讲书人阅读 43,848评论 0赞 204
港岛之恋（遗憾婚礼）
正文为了忘掉前任，我火速办了婚礼，结果婚礼上，老公的妹妹穿的比我还像新娘。我一直安慰自己，他们只是感情好，可当我...
茶点故事阅读 52,249评论 3赞 286
恶毒庶女顶嫁案：这布局不是一般人想出来的
文/花漫我一把揭开白布。她就那样静静地躺着，像睡着了一般。火红的嫁衣衬着肌肤如雪。梳的纹丝不乱的头发上，一...
开封第一讲书人阅读 40,554评论 1赞 216
城市分裂传说
那天，我揣着相机与录音，去河边找鬼。笑死，一个胖子当着我的面吹牛，可吹牛的内容都是我干的。我是一名探鬼主播，决...
沈念sama阅读 31,830评论 2赞 312
双鸳鸯连环套：你想象不到人心有多黑
文/苍兰香墨我猛地睁开眼，长吁一口气：“原来是场噩梦啊……” “哼！你这毒妇竟也来了？” 一声冷哼从身侧响起，我...
开封第一讲书人阅读 30,536评论 0赞 197
万荣杀人案实录
序言：老挝万荣一对情侣失踪，失踪者是张志新（化名）和其女友刘颖，没想到半个月后，有当地人在树林里发现了一具尸体，经...
沈念sama阅读 34,239评论 1赞 241
护林员之死
正文独居荒郊野岭守林人离奇死亡，尸身上长有42处带血的脓包…… 初始之章·张勋以下内容为张勋视角年9月15日...
茶点故事阅读 30,505评论 2赞 244
白月光启示录
正文我和宋清朗相恋三年，在试婚纱的时候发现自己被绿了。大学时的朋友给我发了我未婚夫和他白月光在一起吃饭的照片。...
茶点故事阅读 32,004评论 1赞 258
活死人
序言：一个原本活蹦乱跳的男人离奇死亡，死状恐怖，灵堂内的尸体忽然破棺而出，到底是诈尸还是另有隐情，我是刑警宁泽，带...
沈念sama阅读 28,346评论 2赞 253
日本核电站爆炸内幕
正文年R本政府宣布，位于F岛的核电站，受9级特大地震影响，放射性物质发生泄漏。R本人自食恶果不足惜，却给世界环境...
茶点故事阅读 32,999评论 3赞 235
男人毒药：我在死后第九天来索命
文/蒙蒙一、第九天我趴在偏房一处隐蔽的房顶上张望。院中可真热闹，春花似锦、人声如沸。这庄子的主人今日做“春日...
开封第一讲书人阅读 26,060评论 0赞 8
一桩弑父案，背后竟有这般阴谋
文/苍兰香墨我抬头看了看天上的太阳。三九已至，却和暖如春，着一层夹袄步出监牢的瞬间，已是汗流浃背。一阵脚步声响...
开封第一讲书人阅读 26,821评论 0赞 194
情欲美人皮
我被黑心中介骗来泰国打工，没想到刚下飞机就差点儿被人妖公主榨干…… 1. 我叫王不留，地道东北人。一个月前我还...
沈念sama阅读 35,574评论 2赞 271
代替公主和亲
正文我出身青楼，却偏偏与公主长得像，于是被迫代替她去往敌国和亲。传闻我的和亲对象是个残疾皇子，可洞房花烛夜当晚...
茶点故事阅读 35,480评论 2赞 267

Android使用7-zip库

推荐阅读更多精彩内容