Separate Crashlytics reporting for debug and release buildTypes using a Gradle build

README

Step 1.
  New orginazation:
  - Visit https://fabric.io/settings/organizations 
  - Add new orginazation.
  
Step 2.
  Modify the code with different keys.
  - Add values & script in `build.gradle`
  - Change io.fabric.ApiKey in `AndroidManifest.xml`

Step 3.
  Drink a beer!
  

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="your.package.name">
  
  <!-- Your code here-->
  
        <meta-data
            android:name="io.fabric.ApiKey"
            android:value="${crashlyticsApiKey}" />
  
    </application>

</manifest>

build.gradle

// The following code allows an app to report Crashlytics crashes separately 
// for release and debug buildTypes when using Gradle. This code should be inserted 
// into the specified locations within your build.gradle (Module:app) file
    
    // The buildTypes { } block should be inserted inside the android { } block
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            ext.crashlyticsApiSecret = "release api secret"
            manifestPlaceholders = [crashlyticsApiKey: 'release api key']
        }
        debug {
            ext.crashlyticsApiSecret = "debug api secret"
            manifestPlaceholders = [crashlyticsApiKey: 'debug api key']
        }
    }

// The following code can be inserted at the bottom of your build.gradle file
import com.crashlytics.tools.utils.PropertiesUtils

File crashlyticsProperties = new File("${project.projectDir.absolutePath}/fabric.properties")
android.applicationVariants.all { variant ->
    def variantSuffix = variant.name.capitalize()
    def generateResourcesTask = project.tasks.getByName("fabricGenerateResources${variantSuffix}")
    def generatePropertiesTask = task("fabricGenerateProperties${variantSuffix}") << {
        Properties properties = new Properties()
        println "...copying apiSecret for ${variant.name}"
        properties.put("apiSecret", variant.buildType.ext.crashlyticsApiSecret)
        PropertiesUtils.injectPropertyInFile(crashlyticsProperties, properties, "")
    }
    generateResourcesTask.dependsOn generatePropertiesTask
    
    def generateUploadSymbolsTask = project.tasks.getByName("crashlyticsUploadSymbols${variantSuffix}")
    generateUploadSymbolsTask.dependsOn generatePropertiesTask
    generateUploadSymbolsTask.doLast {
        println "Removing fabric.properties"
        crashlyticsProperties.delete()
    }
    
    def generateUploadTask = project.tasks.getByName("crashlyticsUploadDistribution${variantSuffix}")
    generateUploadTask.dependsOn generatePropertiesTask
    generateUploadTask.doLast {
        println "Removing fabric.properties"
        crashlyticsProperties.delete()
    }
}