android– 在build.gradle中定义清单占位符

概述我的AndroidManifest.xml文件中有一些显式占位符在build.gradle中,我想根据我的风格和构建类型动态填充这些值.我怎样才能做到这一点？我编写了一个执行以下 *** 作的函数defgetKey(){defKeyToReturn=""android.applicationVariants.all{variant->prin

我的AndroidManifest.xml文件中有一些显式占位符

在build.gradle中,我想根据我的风格和构建类型动态填充这些值.

我怎样才能做到这一点 ？

我编写了一个执行以下 *** 作的函数

def getKey() {    def KeyToReturn = ""    androID.applicationVariants.all { variant ->        printout("getKey: ${variant.name}")        def flavor = "default";        if (variant.productFlavors.size() > 0)            flavor = variant.productFlavors.get(0);        def buildType = variant.buildType.name        if (buildType == "deBUG" || buildType == "staging") {            if (flavor.name == "one") {                KeyToReturn = test_key_1            }            if (flavor.name == "two") {                KeyToReturn = test_key_2            }        }        if (buildType == "release") {            if (flavor.name == "one") {                KeyToReturn = live_key_1            }            if (flavor.name == "two") {                KeyToReturn = live_key_2            }        }    }    printout("KeyToReturn:" + KeyToReturn)    return KeyToReturn}

我在androID.defaultConfig中有这个

defaultConfig {    minSdkVersion 15    targetSdkVersion 23    versionCode getVersionCode1()    versionname getVersionname1() + ""    manifestPlaceholders = [key: getKey()]}

这是我的AndroIDManifest.xml相关部分所包含的内容

<Meta-data            androID:name="key"            androID:value="${key}"/>

问题是当我查看构建的AndroIDManifest.xml文件时
${key}值是一个空字符串.@H_419_32@

如何正确填充此值？

解决方法:

您可以通过将它们添加到正确的闭包来基于产品风格(和AFAIK构建类型)定义清单占位符.

在this sample app中,我使用产品风格为AndroID 7.0的network security configuration使用不同的规则：

productFlavors {    thawte {        resValue "string", "app_name", "CA ValIDation Demo"        applicationID "com.commonsware.androID.downloader.ca.thawte"        manifestPlaceholders=                [networkSecurityConfig: 'network_thawte']        buildConfigFIEld "String", "URL", WARES    }    verisign {        resValue "string", "app_name", "InvalID CA ValIDation Demo"        applicationID "com.commonsware.androID.downloader.ca.verisign"        manifestPlaceholders=                [networkSecurityConfig: 'network_verisign']        buildConfigFIEld "String", "URL", WARES    }    system {        resValue "string", "app_name", "System CA ValIDation Demo"        applicationID "com.commonsware.androID.downloader.ca.system"        manifestPlaceholders=                [networkSecurityConfig: 'network_verisign_system']        buildConfigFIEld "String", "URL", WARES    }    pin {        resValue "string", "app_name", "Cert Pin Demo"        applicationID "com.commonsware.androID.downloader.ca.pin"        manifestPlaceholders=                [networkSecurityConfig: 'network_pin']        buildConfigFIEld "String", "URL", WARES    }    invalIDPin {        resValue "string", "app_name", "Cert Pin Demo"        applicationID "com.commonsware.androID.downloader.ca.invalIDpin"        manifestPlaceholders=                [networkSecurityConfig: 'network_invalID_pin']        buildConfigFIEld "String", "URL", WARES    }    selfSigned {        resValue "string", "app_name", "Self-Signed Demo"        applicationID "com.commonsware.androID.downloader.ca.ss"        manifestPlaceholders=                [networkSecurityConfig: 'network_selfsigned']        buildConfigFIEld "String", "URL", SELFSIGNED    }    overrIDe {        resValue "string", "app_name", "DeBUG OverrIDe Demo"        applicationID "com.commonsware.androID.downloader.ca.deBUG"        manifestPlaceholders=                [networkSecurityConfig: 'network_overrIDe']        buildConfigFIEld "String", "URL", SELFSIGNED    }}

然后,我可以正常引用清单中的占位符：

<application  androID:icon="@drawable/ic_launcher"  androID:label="@string/app_name"  androID:networkSecurityConfig="@xml/${networkSecurityConfig}">

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