Gradle RunApp

gistfile1.txt

    android.applicationVariants.all { variant ->
        if (variant.install) {
            tasks.create(name: "run${variant.name.capitalize()}", type: Exec,
                    dependsOn: variant.install) {
                group = 'Run'
                description "Installs and Runs the APK for ${variant.description}."
                def getMainActivity = { file ->
                    new XmlSlurper().parse(file).application.activity.find {
                        it.'intent-filter'.find { filter ->
                            return filter.action.find {
                                it.'@android:name'.text() == 'android.intent.action.MAIN'
                            } \
                                 && filter.category.find {
                                it.'@android:name'.text() == 'android.intent.category.LAUNCHER'
                            }
                        }
                    }.'@android:name'
                }
                doFirst {
                    def activityClass =
                            getMainActivity(variant.outputs.processManifest.manifestOutputFile)
                    commandLine android.adbExe, 'shell', 'am', 'start', '-n',
                            "${variant.applicationId}/${activityClass}"

                    // or without the XML hacking: commandLine android.adbExe, 'shell', 'monkey', '-p', variant.applicationId, '1'
                }
            }
        }
    }