Product Description
MQTT – MQ Telemetry Transport for B4A
This library was made based on MQTT Protocol
Installation instructions:
– Copy the .xml and .jar(s) files to your custom libraries folder
– Select in your REFERENCED LIBRARIES
Events:
- connectionlost ( )
- deliverycomplete (Token As String)
- messageArrived (Topic As String, Message As String)
- onConnect (Status as boolean)
- onDisconnect (Status as boolean)
- onInitialized ( )
Fields:
- CleanSession As Boolean
- JavaDebug As Boolean
- KeepAliveInterval As Int
- QoS_AtLeastOnce As Int
- QoS_AtMostOnce As Int
- QoS_ExactlyOnce As Int
- generatedClientId As String
Methods:
- About As String
- Connect (broker As String, ClientID As String, Username As String, Password As String) As Boolean
- Disconnect As Boolean
- Initialize (eventname As String)
- Publish (Topic As String, Message As String, Qos As Int, Retained As Boolean)
- Publish2 (Topic As String, Message As String, Qos As Int, Retained As Boolean)
- Subscribe (Topic As String)
- Subscribe2 (Topic As String, QoS as int)
- Subscribe3 (Topic As String)
- Subscribe4 (Topic As String, QoS as int)
- Unsubscribe (Topic As String)
- Version As String
- isConnected As Boolean
Permissions:
- android.permission.ACCESS_WIFI_STATE
- android.permission.INTERNET
How works the MQTT protocol
Communication Infrastructure
References:
http://mqtt.org/
http://public.dhe.ibm.com/software/dw/webservices/ws-mqtt/mqtt-v3r1.html
Mosquitto Broker: http://mosquitto.org/
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BEFORE PAY ANY LIBRAY, YOU CAN TEST THE LIBRARY TO MAKE SURE WILL BE WORK FOR YOUR PROJECT
