Programmer Group

1. Set up non-editable and clickable events 2. Set non-editable and no click event 3. Set Editable 4. Source Code 4.1 XML Layout 4.2 Java Code V. Summary 1. Set up non-editable and clickable events public void setCanNotEditAndClick(View view) { etContent.setFocusable(false); etContent.setFocus ...

scene In Android, the brush uses the Paint class, and the Canvas uses the Canvas class to represent it. Basic steps of drawing First, write a custom view class inherited from view, then rewrite its onDraw method, and finally add the custom view to actvity. Effect     Note: Blog: https://blog.csdn.net/badao_liumang_qizhi Pay attention to the ...

This is a very simple question about sudo permission in Linux, at least it should be. Many times, I just want to append some content to / etc/hosts or similar files, but I can't do it in the end, because even if I use root, I can't use > and > > at the same time. Is there a way to make this work without su or sudo su becoming ro ...

What is the difference between the margin and fill of the view? #1st floor Filling is the space within the boundary between the boundary and the actual image or cell contents.A boundary is the space outside the boundary between the boundary and other elements next to the object. #2nd floor Sometimes you can achieve the same result b ...

scene Show notification effect on status bar     Note: Blog: https://blog.csdn.net/badao_liumang_qizhiPay attention to the public address Domineering procedural ape Get programming related ebooks, tutorials and free downloads. Realization Create a new NotificationActivity and get the notification manager through the getSystemService method. T ...

1. Steps of news classification based on Naive Bayes (1) Provide text file, i.e Dataset Download (2) Prepare data The data set is divided into training set and test set, and the jieba module is used for word segmentation, word frequency statistics, stop word filtering, text feature extraction, and text data is quantified Stop word text Stopword ...

background When printing in go language, we often see different printing methods, such as println, fmt.Println and fmt.Printf Differences and usage Source code of fmt.Println // Println formats using the default formats for its operands and writes to standard output. // Spaces are always added between operands and a newline is appended. ...

1. What is Dependent Injection Formal definition of dependency injection: Dependency Injection is the process in which a customer class defines only one injection point because it depends on only one interface of a service class and not on a specific service class.In the process of running the program, the client class does not instantiate th ...

1, Call the default parameterless constructor to create (common) bean object: Car.java package com.zj; public class Car { private String brand; private double price; public Car(){ System.out.println("Car Object created "); } public String getBrand() { return brand; } public voi ...

scene Effect     Note: Blog: https://blog.csdn.net/badao_liumang_qizhi Pay attention to the public address Domineering procedural ape Get programming related ebooks, tutorials and free downloads. Realization Change the layout to LinearLayout and set it to vertical layout through Android: orientation = "vertical" > then add a Rat ...