Easylauncher gradle plugin for Android

Modify the launcher icon of each of your app-variants using simple gradle rules. Add ribbons of any color, overlay your own images, change the colors of the icon, ...

Usage

Basic usage

// in build.gradle
buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.akaita.android:easylauncher:1.3.1'
    }
}

// in app/build.gradle
apply plugin: 'com.akaita.android.easylauncher'

Adaptive launcher icons (Android 8.0+)

Additionally to the set up from Basic usage, you need to tell the plugin what the name of the foreground layer is:

// in app/build.gradle
easylauncher {
    foregroundIconNames "@mipmap/ic_launcher_foreground" // Foreground of adaptive launcher icon
}

Warning: please not that easylauncher doesn't yet support vector drawables. Please feel free to contribute a PR solving the issue #9

Advanced usage

You can customize the filters applied to each type, flavor and variant of your app.

Imagin these are the type and flavors of your app:

// in app/build.gradle
android {
    buildTypes {
        debug {
            //Debuggable, will get a default ribbon in the launcher icon
        }
        beta {
            //Debuggable, will get a default ribbon in the launcher icon
            debuggable true
        }
        canary {
            //Non-debuggable, will not get any default ribbon
            debuggable false
        }
        release {
            //Non-debuggable, will not get any default ribbon
        }
    }
    productFlavors {
        local {}
        qa {}
        staging {}
        production {}
    }
}

You could customize the plugin's behaviour like this:

easylauncher {
    // "manifest application[android:icon]" is automatically added to the list
    iconNames "@mipmap/ic_launcher_foreground" // Traditional launcher icon
    foregroundIconNames "@mipmap/ic_launcher_foreground" // Foreground of adaptive launcher icon
    
    defaultFlavorNaming = true // Use flavor name for default ribbon, instead of the type name
    
    productFlavors {
        local {}
        qa {
            // Add one more filter to all `qa` variants
            filters = redRibbonFilter()
        }
        staging {}
        production {}
    }
    
    buildTypes {
        beta {
            // Add two more filters to all `beta` variants
            filters = [
                    customColorRibbonFilter("#0000FF"),
                    overlayFilter(new File("example-custom/launcherOverlay/beta.png"))
            ]
        }
        canary {
            // Remove ALL filters to `canary` variants
            enable false
        }
        release {}
    }
    
    variants {
        productionDebug {
            // OVERRIDE all previous filters defined for `productionDebug` variant
            filters = orangeRibbonFilter("custom")
        }
    }
}

Available filters

Grayscale filter

Command	Result
grayscaleFilter()

Overlay filter

Command	Result
overlayFilter(new File("example-custom/launcherOverlay/beta.png"))

Ribbon filters

Filter	Command	Result
Gray ribbon	grayRibbonFilter()
Green ribbon	greenRibbonFilter()
Yellow ribbon	yellowRibbonFilter()
Orange ribbon	orangeRibbonFilter()
Red ribbon	redRibbonFilter()
Blue ribbon	blueRibbonFilter()

Advanced Ribbon filter

Description	Command	Result
Custom background color	customColorRibbonFilter("#6600CC")
Custom label	customColorRibbonFilter("label", "#DCDCDC")
Custom text color	customColorRibbonFilter("label", "#DCDCDC", "#000000")
Custom gravity - Top	customColorRibbonFilter("custom", "#556600CC", "#FFFFFF", "top")
Custom gravity - Bottom	customColorRibbonFilter("custom", "#556600CC", "#FFFFFF", "bottom")
Custom gravity - TopLeft	customColorRibbonFilter("custom", "#556600CC", "#FFFFFF", "topLeft")
Custom gravity - TopRight	customColorRibbonFilter("custom", "#556600CC", "#FFFFFF", "topRight")
Custom text size (relative to the icon size)	customColorRibbonFilter("custom", "#556600CC", "#FFFFFF", "bottom", 0.2)

Available options

• iconNames: list of icons to modify (already includes "manifest application[android:icon]")
• foregroundIconNames: list of adaptive icons to modify
• defaultFlavorNaming: use flavor name in default ribbons, instead of using buildType
• enable: enable/disable all filters for a flavor/type/variant
• productFlavors: define filters for flavors (will be added to filters defined for types)
• buildTypes: define filters for types (will be added to filter defined for flavors)
• variants: define filters for variants (will override any other filters)

Project Structure

plugin/          - Gradle plugin
example-simple/  - Example Android application using easylauncher with the default behaviour
example-custom/  - Example Android application using easylauncher with the custom configuration
buildSrc/        - Helper module to use this plugin in example modules
icons/           - Examples of icons generated by this plugin

Contributing

You can already see my plans for the plugin in the project's Issues section.

Still, I'm open to feature-requests and suggestions.
Of course, a PR is the best way to get something you want into the plugin ;)

Credits

Easylauncher started as an extension of Fuji Goro's ribbonizer plugin. As it evolved, I decided it changed enough to be worth releasing as a separate plugin.