Flutter: How to receive new Data and update Widget without rebuildung
My solution:In my use case it just wouldn't work with Streambuilder. The data that were passed into the Widget after new data came from the stream were the same somehow..Now I am using FutureBuilder to fetch the data initial and pass a Stream to my Widget. The Widget listens to changes on the Stream and updates itself..
Also, like mentioned from @Rémi Rousselet, I start the fetch process in the initState method and assign it to a local future variable, instead of triggering the fetch directly with FutureBuilder.