Customize the View and draw the Android radar map with Kotlin
stay Custom View and Radar chart Based on the two blogs, I have made some modifications. Here I summarize my own learning experience.
There are several ways to customize the View
typedefinitionCustom composite controlMultiple controls are combined into a new control to facilitate multiple reuseInherit system View controlIt inherits from TextV ...
Posted by not_skeletor on Fri, 14 Jan 2022 21:46:18 +0100
Look at layoutinflator, you may have a new understanding this time
This article is also published in my WeChat official account. It can scan the two-dimensional code at the bottom of the article or search for Guo Lin in WeChat.
Today, I don't want to talk about some new features and features of Android. I especially want to talk about this old topic: layoutinflator.
Now most of my articles are old Android. ...
Posted by tuneout on Tue, 14 Dec 2021 01:11:32 +0100
Advanced Android [2] ten minutes to thoroughly understand the View event distribution mechanism
prefaceAndroid event distribution mechanism is the foundation that Android developers must understandThere are a large number of articles on Android event distribution mechanism on the Internet, but there are some problems: incomplete content, unclear ideas, no source code analysis, complex simple problems and so onToday, I will comprehensively ...
Posted by spider22 on Sat, 06 Nov 2021 14:34:55 +0100
Interpreting the event distribution mechanism of View in Android
Sequence of event distribution
Activity->Window->DecorView->ViewGroup->View
Type of event
ACTION_DOWN,ACTION_MOVE,ACTION_UP,ACTION_CANCEL Usually an event sequence is such an action_ The down event is the starting point of an event, followed by multiple actions_ Down event, followed by ACTION_DOWN, an action may be received in th ...
Posted by tony_l on Tue, 12 Oct 2021 22:08:20 +0200