gradle的几个实用技巧让你爽歪歪

本文章由情随事迁收集编写,转载请说明出处

混淆文件收集技巧

自动备份 mapping 混淆发布后对应的真实代码比对文件

applicationVariants.all { variant ->variant.outputs.each { output ->if (variant.getBuildType().isMinifyEnabled()) {variant.assemble.doLast{copy {from variant.mappingFileinto "${projectDir}/mappings"rename { String fileName ->"mapping-${variant.name}-${variant.versionName}_${variant.versionCode}.txt"}}}}}}

除此之外还可以切换test目录
将会在项目根目录/mappings/生成文件mapping-release-1.1_2.txt，这样解决了每次发布版本总是需要在build/outputs/release/mapping.txt中找到并移动出来进行备份的问题.
文件自定义字符串混淆的套路

android.applicationVariants.all {variant ->variant.each() {//buildTypeName:debug,appprintln("buildTypeName:" + variant.buildType.name+","+ this.project.name);}variant.each {myeach->//buildTypeName:release,myeach:releaseprintln("buildTypeName:" + variant.buildType.name+",myeach:"+myeach.name+",dir:"+myeach.outputs);}variant.outputs.each { output ->def fileName = "appname_v${variant.versionName}_release_${variant.flavorName}.apk"if (variant.buildType.isDebuggable()) {fileName = "appname_v${variant.versionName}_debug_${variant.flavorName}.apk"}println("fileName:"+fileName);
//            output.outputFile = new File(output.outputFile.parent, fileName)}variant.outputs.each {}
}

设置编译时间

buildConfigField "long", "BUILD_TIME", System.currentTimeMillis() + "L"

设置这个之后方便查看编译时间,哪怕是开发xposed插件 用这个可以方便查看是否更新生效,根据编译时间来判断.

设置各种目录仿造eclipse目录结构

//高仿eclipse结构sourceSets {main {
//            manifest.srcFile 'AndroidManifest.xml'
//            java.srcDirs = ['src']
//            resources.srcDirs = ['src']
//            aidl.srcDirs = ['src']
//            res.srcDirs = ['res']
//            assets.srcDirs = ['assets']jniLibs.srcDirs=['libs']}}

合并support版本

作用:解决第三方sdk无法修改但是不得不使用问题

configurations.all {resolutionStrategy.eachDependency { DependencyResolveDetails details ->def requested = details.requestedif (requested.group == 'com.android.support') {if (!requested.name.startsWith("multidex")&& !requested.name.startsWith("exifinterface")) {details.useVersion '24.2.1'//不设置24.2.1但是设置到了25就找不到布局，全部不管好像又冲突设置24.2.1 那么 要么冲突 要么       java.lang.NoSuchFieldError: No field notification_template_lines of type}}}
}

优化so库压缩体积排除其他平台可自动兼容

ndk {//APP的build.gradle设置支持的SO库架构abiFilters 'armeabi-v7a'}

这样的话夜神模拟器和真机测试时没毛病的,体积也节省了不少,QQ也是这样做的哈!
缺点就是开发工具会对于没有所指定的会强制不让运行，但是不这样指定的话，如果极光有5个so,但是自己只有一个armebi-v7a的，没法放开，放开也会崩溃，所以还是得下面得方法。

排除指定文件不打包

packagingOptions {exclude "lib/arm64-v8a/libimagepipeline.so"exclude "lib/x86/libsmssdk.so"exclude "lib/x86_64/libsmssdk.so"exclude "lib/mips/libsmssdk.so"exclude "lib/mips64/libqssq.so"}

只保留armebi-v7a

packagingOptions {exclude "lib/arm64-v8a/**"exclude "lib/x86/**"exclude "lib/armeabi/**"exclude "lib/mips/**"exclude "lib/mips64/**"exclude "lib/x86_64/**"}

这里只是演示排除非 armeabi-v7a 目录的so文件,除了排除so还可以排除资源文件哦!

统一协议标准跳转

manifestPlaceholders = [APP_SCHEME: "xxx", //]

xml对应代码

<activityandroid:name=".activity.EditUserInfoActivity"android:screenOrientation="portrait"><intent-filter><action android:name="android.intent.action.VIEW"></action><category android:name="android.intent.category.DEFAULT"></category><category android:name="android.intent.category.BROWSABLE"></category><dataandroid:host="profile"android:scheme="${APP_SCHEME}"></data></intent-filter></activity>

java对应代码

Intent intent=new Intent("xxx://profile");
startActivity(intent);

xml代码引用包名

${applicationId}这个变量就可以自动读取包名,版本号也是可以的哈.

<providerandroid:name="android.support.v4.content.FileProvider"android:authorities="${applicationId}.fileprovider"android:grantUriPermissions="true"android:exported="false"><meta-dataandroid:name="android.support.FILE_PROVIDER_PATHS"android:resource="@xml/file_path" /></provider>

多个源代码文件夹指定

sourceSets {main {jniLibs.srcDirs = ['jniLibs']res.srcDirs = ['src/main/res','src/main/res_qssq']}}sourceSets { main { jni.srcDirs = ['src/main/jni', 'src/main/jni/'] } }

这样以后如果某个模块不要了，删除图片和布局文件，操作速度也是非常快的.
编译生成版本号

编译修改app-release.apk为app应用名称-版本名-版本号.apk

网上有些方法实际上是有bug的，需要经常刷新,每次改版本的时候或者时间变化的时候需要重新build,我这个方法没有bug.

archivesBaseName = "情迁神器${versionName} build_${versionCode}".replace(' ', '_')

这个东西放到defaultConfig节点下即可.

debug包自动签名

signingConfigs {debug {Properties properties = new Properties()properties.load(project.rootProject.file('d:/sign/sign.properties').newDataInputStream())def keyPwd = properties.getProperty("signingConfigs.keyPwd")def keyName = properties.getProperty("signingConfigs.keyName")def keyPath = properties.getProperty("signingConfigs.path")storeFile file(keyPath)storePassword keyPwdkeyAlias keyNamekeyPassword keyPwdv2SigningEnabled false}}

解决无法编译问题常见的几个配置

packagingOptions {exclude 'META-INF/DEPENDENCIES.txt'exclude 'META-INF/NOTICE'exclude 'META-INF/NOTICE.txt'exclude 'META-INF/LICENSE'exclude 'META-INF/LICENSE.txt'}lintOptions {checkReleaseBuilds falseabortOnError false}

让android studio debug模式编译多套so跑模拟器而打包则只编译v7

buildTypes {debug {externalNativeBuild {cmake {cppFlags ""abiFilters 'x86', 'armeabi-v7a'}//APP的build.gradle设置支持的SO库架构}}

生成arr到指定目录

libraryVariants.all { variant ->variant.outputs.each { output ->def outputFile = output.outputFileif (outputFile != null && outputFile.name.endsWith('.aar')) {def fileName = "${archivesBaseName}-${rootProject.version}-${variant.name}.aar"output.outputFile = new File(outputFile.parent, fileName)def folderName = rootProject.projectDir.toString() + new String("/arr-output")output.outputFile = new File(folderName, fileName)}}}

导入根目录文件夹的某个文件夹所有arr

flatDir{dirs "${rootProject.projectDir}/arr_out"}

取出不需要的资源

variantData.outputs.each {def apFile = it.packageAndroidArtifactTask.getResourceFile();it.packageAndroidArtifactTask.doFirst {def arscFile = new File(apFile.parentFile, "resources.arsc");JarUtil.extractZipEntry(apFile, "resources.arsc", arscFile);def HashMap<String, ArrayList<DuplicatedEntry>> duplicatedResources = findDuplicatedResources(apFile);removeZipEntry(apFile, "resources.arsc");if (arscFile.exists()) {FileInputStream arscStream = null;ResourceFile resourceFile = null;try {arscStream = new FileInputStream(arscFile);resourceFile = ResourceFile.fromInputStream(arscStream);List<Chunk> chunks = resourceFile.getChunks();HashMap<String, String> toBeReplacedResourceMap = new HashMap<String, String>(1024);// 处理arsc并删除重复资源Iterator<Map.Entry<String, ArrayList<DuplicatedEntry>>> iterator = duplicatedResources.entrySet().iterator();while (iterator.hasNext()) {Map.Entry<String, ArrayList<DuplicatedEntry>> duplicatedEntry = iterator.next();// 保留第一个资源，其他资源删除掉for (def index = 1; index < duplicatedEntry.value.size(); ++index) {removeZipEntry(apFile, duplicatedEntry.value.get(index).name);toBeReplacedResourceMap.put(duplicatedEntry.value.get(index).name, duplicatedEntry.value.get(0).name);}}for (def index = 0; index < chunks.size(); ++index) {Chunk chunk = chunks.get(index);if (chunk instanceof ResourceTableChunk) {ResourceTableChunk resourceTableChunk = (ResourceTableChunk) chunk;StringPoolChunk stringPoolChunk = resourceTableChunk.getStringPool();for (def i = 0; i < stringPoolChunk.stringCount; ++i) {def key = stringPoolChunk.getString(i);if (toBeReplacedResourceMap.containsKey(key)) {stringPoolChunk.setString(i, toBeReplacedResourceMap.get(key));}}}}} catch (IOException ignore) {} catch (FileNotFoundException ignore) {} finally {if (arscStream != null) {IOUtils.closeQuietly(arscStream);}arscFile.delete();arscFile << resourceFile.toByteArray();addZipEntry(apFile, arscFile);}}}
}
通过这种方式可以有效减少重复资源

还有更多技巧欢迎吐槽哦!!!
更多参考推荐http://blog.csdn.net/s402178946/article/details/54140200