How to provide different Android app icons for dif

问题:

I have two build types set in my gradle file: debug and release. I'd like to be able to set a different app icon for the debug build type. Is there any way to this just through the build type, without getting into product flavors? build.gradle file is below.

apply plugin: 'android'

//...

android {
    compileSdkVersion 19
    buildToolsVersion "19.0.3"

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 19
        versionCode 30
        versionName "2.0"
    }
    buildTypes {
        debug {
            packageNameSuffix '.debug'
            versionNameSuffix '-SNAPSHOT'
        }
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
}

回答1:

Figured it out. What you need to do is create a separate src folder called debug that holds the different icons. For example, if your project layout is as follows, and your launcher icon is called ic_launcher.png:

[Project Root]
  -[Module]
    -src
      -main
        -res
          -drawable-*
            -ic_launcher.png

Then to add a separate icon for the debug build type, you add:

[Project Root]
  -[Module]
    -src
      -main
        -res
          -drawable-*
            -ic_launcher.png
      -debug
        -res
          -drawable-*
            -ic_launcher.png

Then, when you build under the debug build type, it will use the ic_launcher found in the debug folder.

回答2:

This is a handy approach although it has an important downside... both launchers will be put into your apk. – Bartek Lipinski

The better way: InsanityOnABun's answer

AndroidManifest.xml

<manifest 

    ...
        <application
        android:allowBackup="true"
        android:icon="${appIcon}"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

    ...

    </application>

</manifest>

build.gradle

android {

    ...
        productFlavors{
        Test{
            versionName "$defaultConfig.versionName" + ".test"
            resValue "string", "app_name", "App-Test"
            manifestPlaceholders = [
                    appIcon: "@mipmap/ic_launcher_test"
            ]
        }

        Product{
            resValue "string", "app_name", "App"
            manifestPlaceholders = [
                    appIcon: "@mipmap/ic_launcher"
            ]
        }
    }
}

the Github url:Build multi-version App with Gradle

回答3:

You can specify the icon in the product flavor's partial AndroidManifest.xml file as well:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          xmlns:tools="http://schemas.android.com/tools">
    <application
        tools:replace="android:icon"
        android:icon="@drawable/alternative_icon" />
</manifest>

This will overwrite the icon that you specify in the original AndroidManifest.xml

回答4:

For getting different icons while using different flavors with multiple dimensions, such as:

flavorDimensions "color", "size"
productFlavors {
    black {
        dimension "color"
    }
    white {
        dimension "color"
    }

    big {
        dimension "size"
    }
    small {
        dimension "size"
    }
}

This can be achieved as:

First, put the debug resources in separate folders, such as:

src/blackDebug/res
src/whiteDebug/res

Second, put the key with multiple flavor dimensions is that the sourceset name must contain all the possible flavor combinations, even if some of these dimensions do not affect the icon.

sourceSets {
    // Override the icons in debug mode
    blackBigDebug.res.srcDir 'src/blackDebug/res'
    blackSmallDebug.res.srcDir 'src/blackDebug/res'
    whiteBigDebug.res.srcDir 'src/whiteDebug/res'
    whiteSamllDebug.res.srcDir 'src/whiteDebug/res'
}

Just to make it clear, the following will not work when multiple dimensions are in use:

sourceSets {
    // Override the icons in debug mode
    blackDebug.res.srcDir 'src/blackDebug/res'
    whiteDebug.res.srcDir 'src/whiteDebug/res'
}