Android event distribution mechanism - handling sliding conflicts

Before reading this article, it is recommended to read it first Android event distribution mechanism (1) - source code analysis_ z936689039 blog - CSDN blog 1. Case 1 We have to use the ps summary found in ViewGroup: 1. When ACTION_MOVE and action_ When the up event arrives, if no child element handles the event (mFirstTouchTarget==null), ...

Posted by clueless_rob on Mon, 29 Nov 2021 02:30:10 -0800

Python_ Tkinter (button, text box, multiline text component)

Used to define button components in the gui interface   tkinter.Button ](Parent component for storage,attribute parameter...) Component 1 button It has the following properties:  EG1: from tkinter import * root = Tk() root.title("Window title") # Whether the window size can be changed, width and height. True indicates that it can b ...

Posted by adityakonda on Fri, 26 Nov 2021 01:27:55 -0800

Android Studio code Notes - USB interface, reading and writing files, string segmentation, input device information, etc

USB interface Universal Serial Bus (USB) is not only a serial bus standard, but also a technical specification of input and output interfaces. It is widely used in information communication products such as personal computers and mobile devices, and extended to photography equipment, digital television (set-top box), game consoles and o ...

Posted by jpaloyo on Thu, 04 Nov 2021 17:04:47 -0700

"21 days of good habits" phase I-4

I learned BroadcastReceiver from my teacher today. Let's record it. Send standard broadcast (use static registration, that is, manually write the registration code in AndroidManifest.xml) Take a look at my project structure   The MainActivity code is as follows import android.content.ComponentName; import android.conten ...

Posted by jb489 on Mon, 25 Oct 2021 16:05:37 -0700