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Reprinted from: https://www.jianshu.com/p/b923afeba8c0?utm_campaign=maleskine&utm_content=note&utm_medium=seo_notes&utm_source=recommendation Notes on the use of databinding 1. Space. Using spaces directly in xml will report errors. MalformedByteSequenceException: Invalid byte 3 of 3-byte UTF-8 sequence. You need to ...

The renderings are as follows: Implementation steps: Don't forget to add the required dependencies before working implementation 'androidx.navigation:navigation-fragment:2.2.2' implementation 'androidx.navigation:navigation-ui:2.2.2' 1, First, make preparations and create four fragments, corresponding layout files and menu files 1. Four ...

Author: Ricardo mjiang preface Students who have done layout performance optimization know that in order to optimize the interface loading speed, the layout level should be reduced as much as possible. This is mainly because the increase of layout level may lead to the exponential growth of measurement time. Composition does not have this p ...

1, Introduction to Android Jetpack 1.1 what is jetpack The official definition is as follows: Jetpack is a suite composed of multiple libraries, which can help developers follow best practices, reduce template code, and write code that can run consistently in various Android versions and devices, so that developers can focus on writing im ...

Catalogue of series articles Related articles: Jetpack: Room super detailed use pit guide! Jetpack:Room+kotlin collaboration? Transaction problem analysis, detailed explanation of withTransaction API Jetpack:Room use error FAQ Jetpack:Room is optimized with LiveData/Flow, and Room+Flow uses principle analysis. Introduction to Room upg ...

1. Background Like its name, LiveData is an observable data holder. Unlike conventional observable, LiveData has life cycle awareness, which means that it can correctly handle the life cycle in activities, fragments and services. The data source of LiveData is generally ViewModel, or other components that can update LiveData. When the data ...