Android-MQTT | Android-MQTT | Pub Sub library
kandi X-RAY | Android-MQTT Summary
kandi X-RAY | Android-MQTT Summary
Android-MQTT(Subscriber & Publisher Message)
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
- Set up the form item listeners .
- Gets the SSL context .
- Restores database connection columns .
- Shuts down the connection .
- Attempt to reconnect the client .
- Restore the state of the persistence channel .
- Create a network module
- Returns all messages in the given client handle by the given client handle .
- Main loop .
- Connect to the server .
Android-MQTT Key Features
Android-MQTT Examples and Code Snippets
Community Discussions
Trending Discussions on Android-MQTT
QUESTION
I am trying to publish a message to my MQTT broker(which is my Raspberry Pi) for the topic rpi/gpio. The aim of sending that message is to turn on/off an LED connected to my Raspberry Pi(like in this tutorial but that tutorial is for Swift not Android). So when I turn on the switch widget on my Android app, the message "on" will be published to the Raspberry Pi broker to turn it on(via a python script also connected to MQTT on the Raspberry Pi). Without all the MQTT codes, the fragment below works well by displaying the switch. However, with the following codes, it crashes.
...ANSWER
Answered 2018-Mar-06 at 22:00If you follow the error in the paho source code, you'll find that the NPE is caused by the mqttService of the client being null
. You need to wait for the connection to the service to be established before publishing messages, the right place would be onSuccess
of the callback, which you are basically ignoring
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install Android-MQTT
You can use Android-MQTT like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the Android-MQTT component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page