Android
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Android uses surfaceview to realize the animation effect of rainy weather
The first is the final rendering: First analyze the implementation of a raindrop: After analysis, can you write a clas…… -
Android Camera2 example of judging whether the camera function is controllable
Android Camera2 adjustable function adaptation First get the equipment level: Float hardwareLevel = mCameracharacteris…… -
Detailed explanation of messenger principle and basic usage in Android
This blog mainly records the basic principle and usage of messenger in Android. In short, Messenger is actually the wr…… -
Event distribution mechanism of Android view
1、 The Android view framework provides three main operation concepts for events. 1. Event distribution mechanism, dis…… -
Picasso extension of Android image loading tool
In this article, let's continue to learn what extensions are provided in Picasso. A good framework must be highly exte…… -
Implementation method of Adding Assets directory under Android studio
Sometimes you need to place some files that are not compressed by Proguard and can be placed in the assets directory. …… -
Implementation code of Android step counting function
In this paper, the original step counting project is simplified, and the process service and timing, daemon, database …… -
Implementation of Android custom view calendar interface example
Now there are many custom views on the Internet to implement the demo of calendar. Today, let's talk about how to impl…… -
Summary of five implementation methods of Android response event onclick method
In the development of Android, onclicklistener for click events has the following four implementation methods, and the…… -
Graphical analysis of Android coordinate system and view coordinate system
1. Android coordinate system In Android, the top left corner of the screen is used as the origin of the Android coordi…… -
Recycleview in Android implements the click event of item
Recycleview in Android implements the click event of item Recycleview has attracted more and more attention because it…… -
A simple method for Android to judge the orientation of camera pictures
When using camera pictures in Android applications, one of the problems that must be considered is the orientation of …… -
Android custom overlay control floating window control
In the process of mobile application development, we may occasionally receive such requirements: 1. Create a window on…… -
Method for Android to obtain mobile phone memory and memory available space
Examples are as follows: The above method for Android to obtain mobile phone memory and memory available space is all …… -
How to correctly understand and use the four startup modes of activity
There are many articles about activity startup mode, but some articles are too simple, while others pay too much atten…… -
Android develops a method to accurately save and restore the scroll position of list controls (recommended)
Android developers often need to save and restore the scrolling position of the list. There are many methods articles …… -
Using findviewbyme in Android to improve component search efficiency
1. Draw out Android beginners usually add setcontentview method to oncreate method to load layout when writing Android…… -
Android imitation Taobao headlines realize the effect of scrolling notification up and down based on textview
Recently, a project needs to realize the up and down scrolling effect of the notice bar, which imitates the headlines …… -
Android listview method for monitoring sliding events (detailed explanation)
Listview mainly has two sliding event listening methods, ontouchlistener and onscrolllistener 1、OnTouchListener The o…… -
Android imitates user setting password instance
First, there are two dialog boxes. No password has been set. You need to set dialog_ set_ Password.xml. The user has s…… -
Bottom display effect of Android tabwidget
The tabhost control uses LinearLayout to wrap tabwidget and FrameLayout by default. The layout file is as follows: In …… -
Android skin changing technology data sorting
Android skin changing technology summary background Throughout the current Android apps, their skin changing needs can…… -
Android custom view realizes vertical timeline layout
Timeline, as the name suggests, lists the events in chronological order, bringing a more intuitive experience to users…… -
Android custom view circular progress bar control (III)
Continue to practice customizing the view. The circular progress bar control brought this time is similar to the previ…… -
Solution to compatibility problem of Android setbuttondrawable()
Solution to compatibility problem of Android setbuttondrawable() Compatibility issue with setbuttondrawable() Api16 im…… -
Method of Android copying SQLite database to local SD card
SQLite small database is used to save data during development. It is not introduced here. This paper only describes ho…… -
A quick solution to the inexplicable lack of androidstudio r files
Today, Android studio reminds me of this... To speed up the construction of gradle, I clicked "update"... After that, …… -
Implementation method of scrolling effect of Android support library title bar (toolbar)
Let's start with a renderings Layout file code In the layout file, coordinatorlayout is the root node of the layout fi…… -
In Android, viewpager combines with fragment for infinite sliding
The implementation of viewpager combined with fragment to realize infinite loop switching is also carried out in the a…… -
Android memory overflow and memory leak
Android memory overflow and memory leak In the interview, some interviewers often ask "do you know what is memory over…… -
Android listview does not load data when sliding and loads data when stopping
This example shares the specific code of loading data when listview slides without loading data and stops for your ref…… -
Method of introducing lambda expression in Android studio
This article introduces the method of introducing lambda expressions into Android studio. Let's take a look at the det……