通通不可说

生命永远充满希望

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Posted on Edited on In ,

Android开发中，不可避免的可能会引用到外部so文件，设置一个项目中可能需要引用多个不同的外部so文件。因为不同的引入库中so文件的目录可能不同，导致打包后生成的项目lib目录中的目录结构是不同的外部so文件目录的合集。可能会出现armeabi/armeabi-v7a/arm64-v8a/x86/mips等，一般情况下，armeabi应该是有的，当此三个目录下的文件可能不同时，在某些特定机型下很可能会出现UnsatisfiedLinkError。

原因在于不同的机型CPU结构不同导致搜寻不同的目录下面的包，而由于外部库不同的so文件目录可能armeabi下还有a、b so文件，而x86下可能只含有a。例如一个应用armeabi下有liba.so、libb.so，arm64-v8a下有liba.so这样的应用装在arm64的设备上，当代码掉到加载libb.so时就会有上面的异常出现，即便是armeabi下有此so，系统也不会去寻找，原因是这个apk中已经有arm64的目录了。

此时解决方案如下：

在build.gradle中添加如下内容

android {
    defaultConfig {
        ndk {
            abiFilters 'armeabi'
        }
    }
}

这样生成的apk中就只包含armeabi下的so文件，而不包含其他架构的目录，这样系统会采取兼容模式，加载armeabi下的so文件。

Posted on Edited on In 
buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.1'
    }
}
apply plugin: 'com.android.application'

allprojects {
    repositories {

    }
}

dependencies {
    compile fileTree(include: '*.jar', dir: 'libs')
}

repositories{
    flatDir {
        dirs 'libs'
    }
}

android {
    compileSdkVersion 23
    buildToolsVersion "24.0.0"

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }

        // Move the tests to tests/java, tests/res, etc...
        instrumentTest.setRoot('tests')

        // Move the build types to build-types/<type>
        // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
        // This moves them out of them default location under src/<type>/... which would
        // conflict with src/ being used by the main source set.
        // Adding new build types or product flavors should be accompanied
        // by a similar customization.
        debug.setRoot('build-types/debug')
        release.setRoot('build-types/release')
    }
}

Posted on Edited on In

一、 在github上下载工具 https://github.com/getfatday/keytool-importkeypair 将工具在Linux环境下解压或者解压后Copy到Linux下，运行如下命令

keytool-importkeypair -k android/debug.keystore -p android -pk8 android/platform.pk8 -cert android/platform.x509.pem -alias androiddebugkey

二、 1 把pk8转换成pk12格式

openssl pkcs8 -in platform.pk8 -inform DER -outform PEM -out platform.priv.pem -nocrypt

2 生成pk12的密钥问文件

openssl pkcs12 -export -in platform.x509.pem -inkey platform.priv.pem -out platform.pk12 -name androiddebugkey

3 生成keystore

keytool -importkeystore -deststorepass android -destkeypass android -destkeystore debug.keystore -srckeystore platform.pk12 -srcstoretype PKCS12 -srcstorepass android -alias androiddebugkey

Posted on Edited on In

所有需要传递或接收的 Activity 不允许设置singleInstance，或只能设为标准模式，否则在部分手机上系统将在 startActivityForResult()后直接返回Activity.RESULT_CANCELED，但在某些手机是正常的。

Posted on Edited on

1.proxychains-ng安装

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git clone https://github.com/rofl0r/proxychains-ng.git
cd proxychains-ng/
./configure --prefix=/usr/local/proxychains --sysconfdir=/etc
sudo make 
sudo make install
sudo make install-config

2.proxychains-ng配置

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sudo vim /etc/proxychains.conf
#将socks4 127.0.0.1 9095改为自己的代理端口
socks5  127.0.0.1 1080  //1080改为你自己的端口
sudo cp /usr/local/proxychains/bin/proxychains4 /usr/local/bin/proxy

3.proxychains-ng使用

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proxy wget http://www.baidu.com

Posted on Edited on

示例脚本

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apply plugin: 'com.android.application'

def releaseTime() {
    return new Date().format("yyyy-MM-dd", TimeZone.getTimeZone("UTC"))
}

android {
    compileSdkVersion 21
    buildToolsVersion '21.1.2'

    defaultConfig {
        applicationId "com.boohee.*"
        minSdkVersion 14
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
        
        // dex突破65535的限制
        multiDexEnabled true
        // 默认是umeng的渠道
        manifestPlaceholders = [UMENG_CHANNEL_VALUE: "umeng"]
    }

    lintOptions {
        abortOnError false
    }

    signingConfigs {
        debug {
            // No debug config
        }

        release {
            storeFile file("../yourapp.keystore")
            storePassword "your password"
            keyAlias "your alias"
            keyPassword "your password"
        }
    }

    buildTypes {
        debug {
            // 显示Log
            buildConfigField "boolean", "LOG_DEBUG", "true"

            versionNameSuffix "-debug"
            minifyEnabled false
            zipAlignEnabled false
            shrinkResources false
            signingConfig signingConfigs.debug
        }

        release {
            // 不显示Log
            buildConfigField "boolean", "LOG_DEBUG", "false"

            minifyEnabled true
            zipAlignEnabled true
            // 移除无用的resource文件
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release

            applicationVariants.all { variant ->
                variant.outputs.each { output ->
                    def outputFile = output.outputFile
                    if (outputFile != null && outputFile.name.endsWith('.apk')) {
                    	// 输出apk名称为boohee_v1.0_2015-01-15_wandoujia.apk
                        def fileName = "boohee_v${defaultConfig.versionName}_${releaseTime()}_${variant.productFlavors[0].name}.apk"
                        output.outputFile = new File(outputFile.parent, fileName)
                    }
                }
            }
        }
    }

    // 友盟多渠道打包
    productFlavors {
        wandoujia {}
        _360 {}
        baidu {}
        xiaomi {}
        tencent {}
        taobao {}
        ...
    }

    productFlavors.all { flavor ->
        flavor.manifestPlaceholders = [UMENG_CHANNEL_VALUE: name]
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:support-v4:21.0.3'
    compile 'com.jakewharton:butterknife:6.0.0'
    ...
}

Posted on Edited on

操作系统：ubuntu 14.04
一.安装需要工具

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sudo apt-get install autoconf libtool libsysfs-dev

二.制作交叉编译工具链
1.下载NDK，并配置NDK环境变量为NDK的安装路径
2.根据NDK里docs文档里的standalone-toolchain.html来抽取交叉编译的环境。
3.配置SYSROOT环境变量： 

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SYSROOT=$NDK/platforms/android-19/arch-arm //android-19是你的android开发版本所定

4.然后运行命令：

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$NDK/build/tools/make-standalone-toolchain.sh --platform=android-19 --install-dir=/tmp/my-android-toolchain

/tmp/my-android-toolchain是你交叉编译环境的复制路径。最好别放在tmp目录里，因为重启机子就立即消失了。这个新生成的文件 夹即是你的交叉编译环境
5.配置PAHT和CC环境变量：

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export PATH=/tmp/my-android-toolchain/bin:$PATH
export CC=arm-linux-androideabi-gcc

三.下载curl并编译

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git clone https://github.com/curl/curl.git
cd curl
mkdir build
autoreconf -i
./configure --host=arm-linux --enable-cross-compile --enable-threaded-resolver --disable-shared --disable-ftp --disable-file --disable-ldap --disable-ldaps --disable-rtsp --disable-dict --disable-telnet --disable-tftp --disable-pop3 --disable-imap --disable-smtp --disable-gopher --disable-manual --enable-proxy --enable-ipv6 --enable-cookies --enable-symbol-hiding --disable-versioned-symbols --disable-soname-bump --disable-sspi --disable-ntlm-wb --prefix=`pwd`/build
make 
make install

Posted on Edited on

在模块的build.gradle中填入以下内容

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task javadoc(type: Javadoc) {
    source = android.sourceSets.main.java.srcDirs
    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
}

javadoc {
    options {
        encoding "UTF-8"
        charSet 'UTF-8'
        author true
        version true
        splitIndex true
        noDeprecated true
        setMemberLevel(JavadocMemberLevel.PUBLIC)
        links "http://docs.oracle.com/javase/8/docs/api"
    }
}

下面还有一个可能更好使

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android.libraryVariants.all { variant ->
    task("generate${variant.name}Javadoc", type: Javadoc) {
        title = "$name $version API"
        source = variant.javaCompile.source
        ext.androidJar = "${android.sdkDirectory}/platforms/${android.compileSdkVersion}/android.jar"
        classpath = files(variant.javaCompile.classpath.files, ext.androidJar)
        options {
            links("http://docs.oracle.com/javase/8/docs/api/");
            linksOffline("http://d.android.com/reference", "${android.sdkDirectory}/docs/reference");
            encoding "UTF-8"
            charSet 'UTF-8'
            author true
            version true
            splitIndex true
            noDeprecated true
            setMemberLevel(JavadocMemberLevel.PUBLIC)
        }
        failOnError false
        exclude '**/BuildConfig.java'
        exclude '**/R.java'
    }
}

Posted on Edited on

示例build.gradle文件如下。

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buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.1'
    }
}
apply plugin: 'com.android.application'

allprojects {
    repositories {
        //maven { url "https://jitpack.io" }
    }
}

dependencies {
    compile fileTree(include: '*.jar', dir: 'libs')
    //compile(name: 'MPChartLib-release', ext: 'aar')
    compile 'com.android.support:support-annotations:24.2.1'
}

repositories{
    flatDir {
        dirs 'libs'
    }
}

android {
    compileSdkVersion 23
    buildToolsVersion "24.0.0"

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }

        // Move the tests to tests/java, tests/res, etc...
        instrumentTest.setRoot('tests')

        // Move the build types to build-types/<type>
        // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
        // This moves them out of them default location under src/<type>/... which would
        // conflict with src/ being used by the main source set.
        // Adding new build types or product flavors should be accompanied
        // by a similar customization.
        debug.setRoot('build-types/debug')
        release.setRoot('build-types/release')
    }
}