升级到Android Studio3.x遇到的问题及解决方案

升级到Android Studio3.x遇到的问题及解决方案

转 https://www.2cto.com/kf/201711/695736.html

升级到Android Studio3.0遇到的问题及解决方案，前些天，google正式发布了Android Studio3.0。看这个版本号，这次是个大更新。升级后发现编译确实有很大的提升，还有最新的错误调试工具，总之，这次的更新google还是很有诚意的。

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Andriod Studio3.0下载

遇到的问题

1.flavorDimensions

错误日志

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1	Error:All flavors must now belong to a named flavor dimension. Learn more at https://d.android.com/r/tools/flavorDimensions-missing-error-message.html

原因：gradle3.0需要使用flavorDimensions做多版本打包，修改如下：

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android {     //...     defaultConfig {         //...         flavorDimensions "dimen"     } }

然后在productFlavors中做相应的修改

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productFlavors {     productA { dimension "dimen" }     productB { dimension "dimen" } }

配置多个flavorDimensions

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android {     //...     defaultConfig {         //...         flavorDimensions "dimenA","dimenB"     } } productFlavors {     productA { dimension "dimenA" }     productB { dimension "dimenB" }     productC { dimension "dimenA" } }

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2.apk命名

错误日志

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1	Cannot set the value of read-only property 'outputFile' for ApkVariantOutputImpl_Decorated{apkData=Main{type=MAIN, fullName=busDebug, filters=[]}} of type com.android.build.gradle.internal.api.ApkVariantOutputImpl. Open File

之前的代码：

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applicationVariants.all { variant ->         variant.outputs.each { output ->             def outputFile = output.outputFile             if (outputFile != null && outputFile.name.endsWith('.apk')) {                 def fileName = "XXX-${defaultConfig.versionCode}-${defaultConfig.versionName}-${releaseTime()}-${productFlavors.name[0]}"                 if (variant.buildType.name == 'release') {                     fileName += '.apk'                 } else if (variant.buildType.name == 'debug') {                     fileName += '_debug.apk'                 } else {                     fileName += '_other.apk'                 }                 output.outputFile = new File(outputFile.parent, fileName)             }         }     }

gradle3.0 each替换为all，output.outputFile替换为outputFileName，不需要new File了，修改后的代码：

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applicationVariants.all { variant ->         variant.outputs.all {             def fileName = "XXX-${defaultConfig.versionCode}-${defaultConfig.versionName}-${releaseTime()}-${productFlavors.name[0]}"             if (variant.buildType.name == 'release') {                 fileName += '.apk'             } else if (variant.buildType.name == 'debug') {                 fileName += '_debug.apk'             } else {                 fileName += '_other.apk'             }             outputFileName = fileName         }     }

需要注意的是，使用Build->Generate Signed APK…的时候，生成的apk包会放在一个以渠道名命名的文件夹下

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3.Annotation processors must be explicitly declared now.Please add them to the annotationProcessor configuration.

错误日志

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Error:Execution failed for task ':app:javaPreCompilePreProductDebug'. > Annotation processors must be explicitly declared now.  The following dependencies on the compile classpath are found to contain annotation processor.  Please add them to the annotationProcessor configuration.     - butterknife-7.0.1.jar (butterknife-7.0.1.jar)   Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with previous behavior.  Note that this option is deprecated and will be removed in the future.   See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.

修复方案

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android {     //...     defaultConfig {         //...         javaCompileOptions {             annotationProcessorOptions {                 includeCompileClasspath true             }         }     } }

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4.Aapt2Exception

错误日志

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Error:(113, 5) error: style attribute '@android:attr/windowEnterAnimation' not found. Error:(113, 5) error: style attribute '@android:attr/windowExitAnimation' not found. ... Error:java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details Error:java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details Error:com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details Error:Execution failed for task ':app:processPreProductDebugResources'. > Failed to execute aapt

解决方案 在gradle.properties中添加如下代码，禁用aapt2编译

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1	android.enableAapt2=false

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5.其他

新版本gradle不需要配置buildToolsVersion
dependencies 引入包的时候是这样的

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dependencies {     implementation fileTree(include: ['*.jar'], dir: 'libs')     androidTestImplementation ...     implementation project ...     implementation files ...     implementation ...     testImplementation 'junit:junit:4.12' }