Every widget in FLutter can have a key. Most of your widgets don’t need a key, especially stateless widgets, so you don’t have to accept Key.
The Key usually used to determine each item in the ListView.
Why each item in the ListView need a key?
You can read this link to get more information about the widget lifecycle. Many blogs wrote about it. So now, I just want to mention some major information.
The constructor function is not a part of the life cycle. But it calls first.
To answer this question, we have to know about widget trees, element trees, and render trees inside Flutter.
What you work with is a widget tree. But actually, when you run an app, Flutter will create a widget tree, element tree, and render tree.
This topic I only want to focus on the importance configuration. You can read more at https://kafka.apache.org/documentation/#producerconfigs to get more information.
ACK = 0
ACK = 1 (default):
Apache Kafka is an open-source stream-processing software platform developed by LinkedIn and donated to the Apache Software Foundation, written in Scala and Java. The project aims to provide a unified, high-throughput, low-latency platform for handling real-time data feeds. (Wikipedia).
Brokers: is a Kafka Server. A Kafka cluster is composed of multiple brokers.
At this part, I will describe how android work with your activity to draw on the screen.
Android system is always run with 60 frames per second (Android redraw your activity each 16.666 ms/frame).
If you create too many things to do for render, the system will be drop frames and screen will be laggy or janky. It happens regularly when a user dragging a list view or trying to type in some data.
This is what the user easy to see and complain about.
2. Rendering pipeline.
Rendering pipeline is broken up into two key…
Nowadays, we can create an Android app so easy. But, not too much developer think about performance or performance is the last thing on their minds.
So, I had researched it and take note of all my knowledge in the next part. Of course, everything is not enough and we can find it on the Internet.
Gradle is an open source build automation system that builds upon the concepts of Apache Ant and Apache Maven and introduces a Groovy-based domain-specific language (DSL) instead of the XML form used by Apache Maven for declaring the project configuration. (Wikipedia)
Gradle Build Scripts
After look this example. Is this a JSON format or Python code? The answer is that Gradle scripts are written in a special purpose build language provided by Gradle. It sits on top of a generic scripting language called Groovy.
The web app manifest is a simple JSON file that gives you the developer the ability to control how your appears to users in areas where they would normally see apps and more importantly how it behaves when it’s launced from the home screen. This is an example from Google:
HTTPS helps prevent intruders from tampering with the communication between your pwa and your user’s browser. GitHub page and Firebase both support static hosting over HTTPS and the Google Cloud platform offers app engine. Which can support HTTPS and is useful if you need any back end logic. Firsbase’s hosting…
What is Service Worker?
How does a Service Worker work?