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I DrawerLayout DrawerLayout is a sliding menu. DrawerLayout is a layout that allows you to put in two direct sub controls. The first sub control is what is displayed on the main screen and the second sub control is what is displayed in the sliding menu. ① So we can in the xml file of MainActivity <?xml version="1.0" encoding="utf-8"?> ...

I'm Zero, not to say a lot, Brain Map Brain Map Combing As long as you follow Flutter, this article is definitely useful==>Highly recommended ➕ Collection Introduction to Multi-Channel Packaging The main role of multi-channel packaging is to meet the operational needs of products, statistical channels and activity results.Previ ...

** Can RFID tags be read through the NFC function of the mobile phone ** Some labels can be read RFID tags have many types: according to different frequencies, they can be divided into low frequency (LF), high frequency (HF), ultra-high frequency (UHF) and microwave (MW) electronic tags. 1. The typical working frequency of high-frequency c ...

1, Experimental topic Personal Finance Assistant 2, Experimental purpose Master SQLite database and its use.Master layout and common controls Button, ListView, EditText, TextView, etc. 3, Overall design (including background knowledge or basic principles and algorithms, or module introduction, design steps, etc.) 3.1 background knowledge ...

1 Introduction to Android application resources Android application mainly consists of two parts: code and resources. Resources mainly refer to things related to UI, such as UI layout, strings and pictures. The separation of code and resources allows the application to organize the UI according to the actual needs at run time. In this way, the ...

1 Diagram Interpreting Service Here is a diagram of life cycle: basic concepts & interpretation of critical callback methods 2. Interpretation of Service Class Relationships The inheritance diagram for the parent and child classes of the Service class is as follows: 3 Configure Service Both Service and Active are android system com ...

What is a window? A window can be understood as a basic carrier of screen content. Navigation, pictures, videos, text, etc. can be placed inside to form a screen content. Different windows form an APP. For example, the shopping APP has different windows such as [home], [shopping cart], [mine]. You can jump between different windows. api.ope ...

Reference resources: Android animation summary 1. Frame animation That is, play a series of pictures in order to achieve the animation effect. design sketch: Implementation method: Create three bitmaps in the drawable directory, which are three pictures to play a_0.xml <vector xmlns:android="http://schemas.android.com/apk/res/and ...

In other words, it's an annual holiday for others, Christmas. Remember last year, the circle of friends frantically forwarded to the Christmas hat. It's quite appropriate to add a Christmas hat for their avatar at Christmas.Maybe soWell, it looks good. Don't think too much. I'm talking about hats (￣▽ ￣)“Have you ever thought about imple ...