Turn On/Off Wifi in android programmatically using gluon-mobile API's

Question

I have been working around with Android app using JavaFx (using JavaFxPorts and Gluon-Mobile ).
I have used ConnectivityService.class to check Whether the device to connected to Network.
But,the next Thing I have to do is Turn On/Off the Device's Wifi Programmatically.
How do I Implement this using Gluon-mobile API's.

Answer 1

So. To get access to the FXActivity (via FXActivity.getActivity()) you will need to update your Gradle file just slightly.

Here is how my file looks like

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'org.javafxports:jfxmobile-plugin:1.3.5'
    }
}

apply plugin: 'org.javafxports.jfxmobile'

compileJava.options.encoding = 'UTF-8'

tasks.withType(JavaCompile) {
    options.encoding = 'UTF-8'
}

repositories {
    jcenter()
    maven {
        url 'http://nexus.gluonhq.com/nexus/content/repositories/releases'
    }
}

mainClassName = 'ch.cnlab.disentis.Main'
// preloaderClassName = 'ch.cnlab.disentis.Preloader'

dependencies {

    compile 'com.gluonhq:charm:4.3.1'
    compile 'org.controlsfx:controlsfx:8.40.12'

    compileNoRetrolambda 'com.airhacks:afterburner.mfx:1.6.2'

    compile 'de.jensd:fontawesomefx-commons:8.15'
    compile 'de.jensd:fontawesomefx-fontawesome:4.7.0-5'
    compile 'de.jensd:fontawesomefx-materialdesignfont:1.7.22-4'
    compile 'de.jensd:fontawesomefx-materialicons:2.2.0-5'
    compile 'de.jensd:fontawesomefx-controls:8.15'

    compile 'com.fasterxml.jackson.core:jackson-databind:2.8.4'

    compile 'commons-codec:commons-codec:1.10'

    androidCompile files("$System.env.ANDROID_HOME/platforms/android-22/android.jar")
    androidCompile files("$System.env.ANDROID_HOME/extras/android/support/v4/android-support-v4.jar")

    compile 'org.javafxports:jfxdvk:8.60.9'
    androidRuntime 'org.javafxports:jfxdvk:8.60.9'
}

jfxmobile {
    downConfig {
        plugins 'display', 'lifecycle', 'storage', 'orientation', 'settings', 'browser', 'ble'
    }
    android {
        manifest = 'src/android/AndroidManifest.xml'
        compileSdkVersion = 22
        minSdkVersion = 19
        targetSdkVersion = 22
        dexOptions {
            javaMaxHeapSize '2g'
        }
        packagingOptions {
            pickFirst 'META-INF/LICENSE'
            pickFirst 'META-INF/NOTICE'
            pickFirst 'license/LICENSE.txt'
        }
        signingConfig {
            storeFile file('signing/android/my-release-key.keystore')
            File propsFile = file('signing/android/keystore.properties');
            if (propsFile.exists()) {
                Properties props = new Properties();
                props.load(new FileInputStream(propsFile))
                storePassword props.getProperty('RELEASE_STORE_PASSWORD')
                keyAlias props.getProperty('RELEASE_KEY_ALIAS')
                keyPassword props.getProperty('RELEASE_KEY_PASSWORD')
            }
        }
    }
    ios {
        infoPList = file('src/ios/Default-Info.plist')
        forceLinkClasses = [
                'com.gluonhq.**.*',
                'de.jensd.**.*',
                'javax.annotations.**.*',
                'javax.inject.**.*',
                'javax.json.**.*',
                'javax.xml.**.*',
                'org.glassfish.json.**.*',
                'com.airhacks.**.*',
                'okio.**.*',
                'okhttp3.**.*',
                'com.fasterxml.**.*',
                'ch.cnlab.disentis.**.*'
        ]
    }
}

The takeaway is, that I needed to include the dependencies androidCompile files("$System.env.ANDROID_HOME/**"), otherwise my Eclipse installation wasn't able to access the Android stuff. :-/

And the dependencies, you need to access the FXActivity, are:

compile 'org.javafxports:jfxdvk:8.60.9'
androidRuntime 'org.javafxports:jfxdvk:8.60.9'

To learn about the lastest versions for jfxdvk (JavaFX Dalvik), I check the following pages, from time to time https://bitbucket.org/javafxports/javafxmobile-plugin - here you can see, the stuff, the javafxmobile-plugin depends on. http://nexus.gluonhq.com/nexus/content/repositories/releases and http://nexus.gluonhq.com/nexus/content/repositories/releases - to find out, what the lastest version of the Charm Down library is (mine in the Gradle file is a bit dated already).

I hope, that helps.

Regards, Daniel

Answer 2

Hi am not familiar with gluon but if your using java You can use this method:

In the Manifest file add the following permissions:

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>

you can then check if WiFi is enabled through a Boolean Like this:

boolean wifiEnabled = wifiManager.isWifiEnabled()

and finaly can change state through:

WifiManager wifiManager = (WifiManager)
`this.getSystemService(Context.WIFI_SERVICE);`
wifiManager.setWifiEnabled(true);
wifiManager.setWifiEnabled(false);

hope this helps