gradle常用使用技巧

1. 运用buildConfigField命令在BuildConfig中添加一个字段

buildConfigField "boolean", "LOG_ENABLE", "true";

2. 运用manifestPlaceholders生成可在AndroidManifest.xml中使用的变量

manifestPlaceholders = [hostName:"www.example.com"]

3. 压缩混淆代码

minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

4. 压缩资源

shrinkResources true

5. 多dex处理

multiDexEnabled true
multiDexKeepFile file('multidex-config.txt')
multiDexKeepProguard file('multidex-config.pro')
// 在application里重写attachBaseContext
@Override
protected void attachBaseContext(Context base) {
     super.attachBaseContext(context);
     MultiDex.install(this);
}

6. 单独只为某一个variants添加一些依赖，只需要在Compile加上对应的variant名字前缀

dependencies {
    compile 'com.android.support:support-v4:22.2.0'
    flavorOneCompile 'com.android.support:appcompat-v7:22.2.0'//只为flavorOne添加这个依赖
}

7. flavorDimensions配置多维productFlavor

flavorDimensions "type", "environment"

8. 编写variantFilter代码块过滤构建变体

 flavorDimensions "api", "mode"
 productFlavors {
    demo {...}
    full {...}
    minApi24 {...}
    minApi23 {...}
    minApi21 {...}
  }

  variantFilter { variant ->
    def names = variant.flavors*.name
    // To check for a build type instead, use variant.buildType.name == "buildType"
    if (names.contains("minApi21") && names.contains("demo")) {
      // Gradle ignores any variants that satisfy the conditions above.
      setIgnore(true)
    }
  }

9. resValue动态配置文字

productFlavors {
        demo {
            resValue("string","dynamic_text","demo的动态文字")
        }
}

注意：string.xml里面不能有dynamic_text字段

10. sourceSets设置源集，给每个module配置不同的资源

sourceSets {
     demo {
        setRoot "src/demo"
        res.srcDirs = ['src/demo/res', 'src/demo/res/']
     }
}

写于2018-6-11