Android
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Detailed explanation of ContentProvider mechanism for Android data persistence
This paper illustrates the ContentProvider mechanism of Android data persistence. Share with you for your reference, a…… -
Detailed explanation of reading and writing content in SD card for Android data persistence
This paper describes the method of reading and writing content in SD card for Android data persistence. Share with you…… -
Initial understanding of Android touch event delivery mechanism
preface A knowledge point summarized today is the view event transmission mechanism in andorid, which is also the core…… -
Summary of methods of hiding title bar in Android Development
Summary of methods of hiding title bar in Android Development 1. Recommend! (because all projects are now apptheme by …… -
Summary of the implementation of custom view in Android
What is Android custom view In our daily development, many times the view provided by the system can not meet our need…… -
A detailed explanation of Java’s upward and downward transformation
A detailed explanation of Java's upward and downward transformation Transformation is based on inheritance. Inheritanc…… -
Detailed explanation of the relationship between screen density and picture size in Android
Detailed explanation of the relationship between screen density and picture size in Android preface Android supports m…… -
Solution to the problem that Android ImageView does not display JPEG images
Android ImageView does not display JPEG images Today, I am writing a small example. ImageView is set as invisible in X…… -
Android simple file manager instance (list file directory)
Core code: File fatherFile = new File(path); File[] files = fatherFile.listFiles(); design sketch: To implement this l…… -
Android monitors touch events in fragment
This paper introduces the implementation of monitoring fragment's touch event. If you have a better mechanism, you can…… -
Comparison of Android custom button click event and long press event
Comparison of Android custom button click event and long press event A button implements click and long press events a…… -
Tutorial on how to add services to Android system
preface Recently, because the company's platform is moving from Android 4.4.4 to Android 6.0, the problem is that we h…… -
Android imitation bubble window implementation of drop-down menu bar example code
Function Description: click the drop-down button to display all entries. There are deletion and click functions. After…… -
Analysis of file mechanism for Android data persistence
This paper describes the file mechanism of Android data persistence. Share with you for your reference, as follows: In…… -
Implementation code of exit confirmation box in Android
This is achieved by blocking and rewriting the operation of the fallback key: when the fallback key is pressed, a prom…… -
Some pitfalls to pay attention to when using layoutinflator in Android
preface In the normal development process, we often use the layoutinflator class, for example, in fragment $oncreatevi…… -
How does Android load PDF files locally
Most apps open PDF files by invoking the tool that can open PDF files in the mobile phone through intent to view PDF f…… -
Detailed explanation and example of Android message queue model
Detailed explanation and example of Android message queue model The message queue and message loop of Android system a…… -
Summary of using dialog box in Android
preface Recently, I have some free time, so I spent an hour to summarize the use of the dialog dialog box. It is more …… -
Android calls the sharing function instance code provided by the system
Several ways to realize sharing function 1. Call the sharing function of the system 2. Through third-party SDK, such a…… -
Android simpleadapter adapter usage details
Android simpleadapter usage details Holderadapter background Android AdapterView uses a lot, such as listview, GridVie…… -
Thoughts and methods of Android imitation to realize free fish home page
First, let's look at the renderings The demo is written based on MVVM mode. You are welcome to criticize and correct i…… -
Android asynchronously downloads pictures and caches them to the local demo
In Android development, we often need to download XML or JSON type data from the server, including some image resource…… -
Android EditText implements segmentation of input content
There may be many input boxes that need to enter mobile phone numbers, bank card numbers or ID number in the project. …… -
Android adds text and image watermark example code to images
We sometimes need to add watermarks to pictures when we are doing projects. Shuihan encountered such a problem today, …… -
Method of clicking hyperlink to start QQ in WebView in Android
preface Once in an interview, the interviewer asked how to click a hyperlink in WebView to start a type of QQ similar …… -
Graphic tutorial of Android studio installation and configuration method
This article mainly explains some problems encountered in installing Android studio and configuring environment variab…… -
Java.net.bindexception: bind failed: eaddinuse problem in Android solution
Java.net.bindexception: bind failed: eaddinuse problem in Android solution Look at the following questions: resolvent:…… -
Talking about Android getting pictures on ImageView and a possible problem
1. Call setdrawingcacheenabled (true) before obtaining the picture: Example: mimageview.setdrawingcacheenabled (true);…… -
Detailed explanation of the method of drawing dashed lines by Android custom view
preface To tell you the truth, when I first saw this requirement, my first reaction was that canvas only had drawLine …… -
Dynamically add height instances of LinearLayout
Examples are as follows: Note: obtain the screen width first, and obtain the height of the layout through the screen w…… -
Android starts the activity implementation code in another app / APK
Android starts the activity implementation code in another app / APK preface: Android provides the ability to start an……