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preface In Android development, sometimes debugging problems add a lot of logs to the method, which is very troublesome. Therefore, in combination with asm, the log is automatically inserted into the method by annotation, so as to facilitate debugging during development. Of course, the log inserted through asm should contain the method paramet ...

Today I learned OkHttp and made a summary here. I hope it can help people in need. Well, don't talk more nonsense and get to the point. 1, OkHttp introduction OkHttp is an excellent network request framework. When it comes to network request framework, many people may think of volley. Volley is a network request framework provided by Goo ...

Get Baidu KeyResource introductionIntegrate Baidu map SDK in the projectDisplay map 1.1. Register baidu account and log in 1.2. Create application Write SHA1, select 1 from 2 for release version and development version, or select all. The acquisition method of development version SHA1 is provided here (1) Open Terminal under Android Studi ...

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), ...

1, Message prompt box and dialog box 1. Use Toast to display the message prompt box There are contacts before the message prompt box. The main application is Toast.makeText().show Next, learn in detail The objects of the Toast class have the following common methods setDuration(int duration) sets the duration toast.length of the message_ ...

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 ...

Start with what you can see and explore Activity 1.Activity Activity is a component that can contain an application user interface, mainly for interacting with users. An application can contain zero or more activities. Although an application can have no activities, it is best to have them, since they are meant to interact with the user and t ...

In Android, you can use built-in sensors (direction sensor, acceleration sensor, geomagnetic sensor, etc.) to realize the compass function and write an app that can identify the location of the mobile phone. This paper will describe two methods to write compass app, one is to use direction sensor, the other is to combine acceleration sensor ...

Series articles Tip: go to the Android learning column and watch more! Click me directly – > Android learning column preface Create a new project named LBSTest. Baidu map (7) let "I" display on the map (picture and text + code) There should be a small cursor on the mobile phone map to display the current position o ...

Series articles Tip: go to the Android learning column and watch more! Click me directly – > Android learning column preface Create a new project named LBSTest. Baidu map (5) let Baidu map display (picture and text + code) Realization effect activity_main.xml (modified) The content in the layout file is very simple, ...