A simple app for making it possible to join a certain wifi access point from ADB without requiring a rooted device. Also supports modifying proxy settings.

Build the app, either by importing the project into Android Studio or by using the following command (make sure you have set the ANDROID_HOME environment variable if you choose the latter):

./gradlew assembleDebug

install the app:

adb install app/build/outputs/apk/app-debug.apk

Use the Activity Manager (am) to start the application with the appropriate parameters:

To join a wifi network with no password:

adb shell am start -n com.steinwurf.adbjoinwifi/.MainActivity -e ssid SSID

To join a password protected wifi network:

adb shell am start -n com.steinwurf.adbjoinwifi/.MainActivity \
    -e ssid SSID -e password_type WEP|WPA -e password PASSWORD

To join a wifi network and set a static proxy (with optional bypass list):

adb shell am start -n com.steinwurf.adbjoinwifi/.MainActivity \
    -e ssid SSID -e password_type WEP|WPA -e password PASSWORD \
    -e proxy_host HOSTNAME -e proxy_port PORT [-e proxy_bypass COMMA,SEPARATED,LIST]

To join a wifi network and set a proxy auto-configuration URL:

adb shell am start -n com.steinwurf.adbjoinwifi/.MainActivity \
    -e ssid SSID -e password_type WEP|WPA -e password PASSWORD \
    -e proxy_pac_uri http://my.pac/url

To clear proxy settings, simply join the same network again and do not pass proxy arguments.

Modifying existing Wifi configurations ============================= Note that android apps are not allowed to change the wifi configuration if it was created by another app (for example -- by the user in the Settings app). For this reason, if you try to use this app to join/modify an existing wifi network, this app will not modify it and will join it as-configured.

To get around this for testing purposes and modify any wifi configuration, you can grant this app device owner privileges:

adb shell dpm set-device-owner "com.steinwurf.adbjoinwifi/.AdminReceiver"

This requires that your device has no provisioned accounts on it. If you wish to demote this app and remove its device owner privileges, run this:

adb shell am start -n com.steinwurf.adbjoinwifi/.MainActivity -e clear_device_admin true

adb-join-wifi is available under the BSD license.