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原地址:http://relex.me/using-manifestplaceholders/
发现前几天 Android Studio Gradle Plugin 发布了0.13.0版, 终于支持Gradle 2.1了。其中Product Flavors能支持AndroidManifest placeholder了,赶紧应用起来。
比如我需要打包不同渠道的APK,需要在AndroidManifest中定义渠道名称,以便在java中调用。以前ant或gradle打包时动态改变渠道的思路是:正则AndroidManifest的特定字符然后替换。新版本直接可以省掉自己编写正则的过程啦。
旧版gradle编写(参考友盟渠道打包)
AndroidManifest.xml
- <meta-data
- android:name="channel"
- android:value="CHANNEL_VALUE"/>
builde.gradle
- android {
- productFlavors {
- "xiaomi"{}
- "360market"{}
- "baidu"{}
- "wandoujia"{}
- }
-
- applicationVariants.all { variant ->
- variant.processManifest.doLast {
- def manifestFilePath = "${buildDir}/intermediates/manifests/${variant.dirName}/AndroidManifest.xml"
- def updatedContent = new File(manifestFilePath).getText('UTF-8').
- replaceAll("CHANNEL_VALUE", "${variant.productFlavors[0].name}")
- new File(manifestFilePath).write(updatedContent, 'UTF-8')
- def manifestFile = file(
- "${buildDir}/intermediates/manifests/${variant.dirName}/AndroidManifest.xml")
- variant.processResources.manifestFile = manifestFile
- }
- }
- }

而在新版中,可以这样写。
AndroidManifest.xml
- <meta-data
- android:name="channel"
- android:value="${channelName}"/>
builde.gradle
- android {
- productFlavors {
- "xiaomi"{
- manifestPlaceholders = [channelName: "xiaomi"]
- }
- "360market"{
- manifestPlaceholders = [channelName: "360market"]
- }
- "baidu"{
- manifestPlaceholders = [channelName: "baidu"]
- }
- "wandoujia"{
- manifestPlaceholders = [channelName: "wandoujia"]
- }
- }
- }

或者可以批量修改
- android {
- productFlavors {
- "xiaomi"{}
- "360market"{}
- "baidu"{}
- "wandoujia"{}
- }
-
- productFlavors.all {
- flavor -> flavor.manifestPlaceholders = [channelName: name]
- }
- }
顿时清晰了很多有没有~
PS:新版Gradle Plugin在编译输出的AndroidManifest.xml 路径也变了。所以才赶紧改成用manifestPlaceholders的方式……
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