targetSdkVersion gradle strange value

Question

So, I cloned this project from Github and while going through its build.gradle, I found this strange configuration, particularly for targetSdkVersion.

Answer 1

why would someone use this property?

• The main purpose behind to use this property To Configure all variables for Android project modules in one place
• so changing it in one place will effect in whole project

how do I find out what version it is?

• it will be available in gradle.properties or build.gradle in file

have a look in Build.Gradle file of CallRecorder of that project

SAMPLE

Here is the good article on it Configure variables for all Android project modules in one place

gradle.properties

# Project-wide Gradle settings.
# IDE (e.g. Android Studio) users:
# Gradle settings configured through the IDE *will override*
# any settings specified in this file.
# For more details on how to configure your build environment visit
# http://www.gradle.org/docs/current/userguide/build_environment.html
# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
org.gradle.jvmargs=-Xmx1536m
android.useAndroidX = true
android.enableJetifier = false

#gradle.properties
myTargetSdkVersion=27
myCompileSdkVersion=27
# When configured, Gradle will run in incubating parallel mode.
# This option should only be used with decoupled projects. More details, visit
# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
# org.gradle.parallel=true

than use in your Build.Gradle

android {
    compileSdkVersion project.myTargetSdkVersion.toInteger()
    defaultConfig {
        applicationId "com.example.nilesh.myapplication"
        minSdkVersion project.myMinSdkVersion.toInteger()
        targetSdkVersion project.myTargetSdkVersion.toInteger()
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        targetCompatibility 1.8
        sourceCompatibility 1.8
    }
}