Android-uses the Ring letter SDK to develop instant messaging (with source download) _android

Recently, the integration of real-time chat in the project, pick and choose, the final choice of the Ring Letter SDK for development, the main reason to choose the ring letter is the interface is convenient, concise, explain the document clear and

Android Matrix Source Detailed _android

The mathematical principle of matrix In Android, if you use the matrix for image processing, you must know the Matrix class. The Matrix in Android is a 3 x 3, which reads: The matrix image processing can be divided into four kinds of basic

Android Development TextView Implementation of the upper right corner follow text dynamic append circular red dot _android

In a comparison pit, the upper-right corner of a piece of text needs to be appended with a circular red dot. The right side has an amount, red dot dynamic with the text moving, and then various pendulum layout, one afternoon pit dead me. Then

Android Studio has error run with--STACKTRACE option to get the stack trace. Run with--info or--debu_android

Android Studio Run with--STACKTRACE option to get the stack trace. Run with--info or--debu Hint Information It actually lets you look at more log information. Find the root of your project, such as your project is MyApplication, enter

Android activity Detailed (lifecycle, start activity in various ways, state save, complete exit, etc.) _android

One, what is activity? Simply put: An activity is an interactive interface that is full of windows or floating over other windows. In an application, which is typically composed of multiple activity, a master activity is specified in the

Android Development Tutorial Calendar Project Practice (iii) _android

Second, create a style The table line that the calendar displays, uses the Cell fills the shape's border to realize, in order to unify, we first defines the border line the color and the line fine. Also define a system fill style, and so on.

Android WebView Component Usage Summary _android

Browser controls are available in every development environment, which provides a useful place for vest martial, with Windows Webbrowser,android and iOS webview. Unlike its engine, the WebView engine of Microsoft's Webbrowser,android and iOS is

Android Five ways to implement button-control binding events _android

First, write at the front This time, let's introduce the five ways that Andong--button bind events for controls. Second, the concrete realization First: Bind directly to the button control: Step 1, set android:onclick= on the button control,

Android Image Drawing (iii) Canvas brush screen problem record _android

When drawing a dynamic diagram in canvas, if a fixed background image is used, only a small sprite is moving! In this case, you have to redraw the background picture in the frame without frames, making it less efficient! Tried all kinds of methods,

The method of making the tab icon discoloration effect in the Android app imitation micro-interface Switch _c language

Overview1. Overviewlearn Android without imitating the interface of a variety of apps, since the advent of micro-letter 6.0, I think the micro-letter switch when the color of the tab icon Cock Cock, today I took you to customize the control, take

Android Custom DataGridView Data Table Control _android

I'm a. NET programmer, but I'm stuck with the company's request to develop an Android app. Because many parts of the project need to use the data display control (similar to the DataGridView of. net), Niang looked for the next found no one to

Android Common XML parsing method _android

1. Why do I need to write a general XML parsing method. When you need to parse a different XML node. You might be able to match different nodes in XML parsing, and the node names are written to death, so you need different parsing methods to parse

Microlog4android the Android log log to the SD card file to implement the method _java

When we do Android development, we often have this experience, because the customer's device models are different, resulting in a variety of problems, but for developers, because there is no log log files, it is not easy to locate the exact location

Android realizes infinite loop effect of automatic wheel-seeding with indication point _android

To achieve infinite carousel, always slide to the left, when the last view, will slide to the first, infinite ... Can write their own viewpager and then add handler first to achieve automatic scrolling, of course, here I for the progress of the

A detailed explanation of how to parse XML in Android _android

XML is widely used in all kinds of development, and Android is no exception. As an important role in hosting data, how to read and write XML becomes an important skill in Android development. Today I'd like to introduce you to several common XML

How to parse XML files using sax in Android _android

Sax is an XML parser that is fast and consumes less memory, and is ideal for mobile devices such as Android. The Sax parsing XML file takes event-driven, that is, it does not need to parse through the entire document, and in the process of parsing

Detailed Android using SAX to parse XML files _android

There are many ways to parse XML, and it may be that Dom parsing is more familiar. Dom (file object Model) Resolution: The parser reads the entire document and then constructs a tree structure that resides in memory, and then the code can

Android custom histogram with growth animation and click on the Bullet window effect demo_android

The project recently used a variety of charts, originally intended to use a third party, such as Mpandroid, this is a very powerful chart library, the application is very convenient, but finally found and design is not the same, no way, can only

Android implements the item free drag effect in the GridView _android

Before the work, the need to implement a function is the GridView in the item can be free to drag, think about it, in fact, not very difficult to achieve, the main work is to exchange nodes, as well as the moving effect of the drag, the following

Getting Started with Android: Multithreading breakpoint Download Detail Introduction _android

This case is to implement a multithreaded breakpoint download of a file, that is, after a file has been interrupted by a download, you can continue with the progress download and show progress through the progress bar. That is, in the beginning of

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