Android Studio-为Gradle中的占位符分配多个值

我的项目有两个环境，一个是Prod另一个是Staging。因此，每当我必须构建任何环境时，我都必须更改多个键，如映射键、标签名和清单中的其他内容。因此，我搜索并找到了一些解决方案，占位符是其中之一

现在我要做的是在占位符中指定多个值。我可以在里面放多个值吗？是的，那么如何在里面放多个值呢。以下是占位符的代码

buildTypes {
    debug {
        manifestPlaceholders = [ google_map_key:"your_dev_key"]
    }
    release {
        manifestPlaceholders = [ google_map_key:"prod_key"]
    }
}

---

我已经提到了构建类型和风格

buildTypes {
    release {
        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        resValue "string", "google_maps_key", "release google map key"
    }
    debug {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        resValue "string", "google_maps_key", "debug google map key"
    }
}
productFlavors {
    alpha {
        applicationId = "com.example.alpha"
        resValue 'string', 'app_name', 'alphaapp'
        resValue "string", "maps_api_key", "XXXXXXXXXXXXXXXXXXXXX"
    }
    beta {
        applicationId = "com.example.beta"
        resValue 'string', 'app_name', 'betaapp'
        resValue "string", "maps_api_key", "XXXXXXXXXXXXXXXXXXXXXX"
    }
}

---

我通过添加多个占位符值解决了我的问题，代码如下。将此添加到我的模块

build.gradle

productFlavors {
        staging {
            applicationId "xxxxxxxxxxx"
            manifestPlaceholders = [ google_map_key:"xxxxxxxxxx", app_label_name:"xxxxxxx"]
            buildConfigField 'String', 'BASE_URL', '"xxxxxxxxxx"'
        }
        prod {
            applicationId "xxxxxxxxxxx"
            manifestPlaceholders = [ google_map_key:"xxxxxxxxxx", app_label_name:"xxxxxxx"]
            buildConfigField 'String', 'BASE_URL', '"xxxxxxxxxx"'
        }
    }

编辑： 您还可以将resValue用作注释中建议的

Emanuel Moecklin

productFlavors {
            staging {
                applicationId "xxxxxxxxxxx"
                manifestPlaceholders = [ google_map_key:"xxxxxxxxxx", app_label_name:"xxxxxxx"]
                buildConfigField 'String', 'BASE_URL', '"xxxxxxxxxx"'
                resValue "string", "base_url", "xxxxxxxxxx"
            }
            prod {
                applicationId "xxxxxxxxxxx"
                manifestPlaceholders = [ google_map_key:"xxxxxxxxxx", app_label_name:"xxxxxxx"]
                buildConfigField 'String', 'BASE_URL', '"xxxxxxxxxx"'
                resValue "string", "base_url", "xxxxxxxxxx"
            }
        }

---

您可以轻松设置/更改多个Manifests占位符值。您可以一次定义所有值（如答案中所示），也可以逐个定义

defaultConfig {
    // initialize more values
    manifestPlaceholders = [ google_map_key:"xxxxxxxxxx", app_label_name:"xxxxxxx"]
    // or this way
    manifestPlaceholders.google_map_key = "xxxxxxxxxx"
    manifestPlaceholders.app_label_name = "xxxxxxxxxx"
}

productFlavors {
    staging {
    }
    prod {
        // use some different value for prod
        manifestPlaceholders.google_map_key = "yyyyyyyyyy"
    }
}

---

很抱歉，我不知道这是否可以做到，只需编写

manifestPlaceholders=[key:“@string/value”]

，这通常是首选解决方案，但我刚刚被一个令人难以置信的恼人问题绊倒了。如果占位符值是一个数字（如15762790467376475），Gradle将其转换为浮点而不是字符串，在这种情况下，清单中的值类似于1.57627904E15）。使用resValue而不是manifestplaceholder解决了这个问题。