Improve the Performance of HTML5 Canvas,
For details, click
I. Use cache technology to implement pre-drawing and reduce repeated Canvs content painting
Most of the time we draw and update on the Canvas, there will always be some unchanged content,
Mobile development webapp development common meta settings mobile browser full screen mode, webappmeta
1,WebApp full screen mode:
Note: add minimal-ui after viewport to display the effect in safri.
2,Hide status bar/set status bar color:
3.
Text rotation in HTML5 plottingText rotation in HTML5 plotting
Text rotation in GDI/GDI + is a relatively easy task. The rotation in HTML5 Canvas is slightly different from that in GDI/GDI +. First, let's look at a figure:Sample Code of text
Ionic, ionicframework
Ionic is open-sourceHTML5Mobile development framework, which is based on HTML, JavaScript, and CSS to build a beautiful, cross-platform hybrid App.AngularJSGood integration. Currently, the best supported platforms are iOS 7 +
Viewport, openglviewport
1. Concepts of viewport
In layman's terms, the viewport on a mobile device is the area on the device's screen that can be used to display our webpage. Another specific point is the browser (or webview in an app) the area
Html5 web apps shake songs, html5app
You can shake a song, recognize the song based on the sound, and return the song information. Using the deviceOrientation feature of html5 and the deviceMotion event, you can also implement the similar shake
HTML5 label embed details, html5embed detailsAbstract:
A tag is a new tag in HTML 5 used to define embedded content, such as plug-ins. Similar to object and applet labels in HTML 4.01.If we want to display the flash content normally on the webpage,
HTML5 Mobile Phone development-rolling and inertia easing, html5 rolling inertia easing
1. Scroll
There are three implementation methods:
1) use the native css Attribute overflow: scroll
content area
Notice:
If there is a bug in android, it will
HTML5 progress bar effects, html5 progress barThis article mainly introduces the special effects of HTML5 progress bars. For more information, see
Please use a browser that supports HTML5 to view this special effect
The Code is as follows: HTML5
HTML5 canvas globalCompositeOperation graphic type description, html5canvas
We always draw one image on the other. In most cases, this is not enough. For example, it is subject to the drawing sequence. However, we can
Image wall effect, image Wall
I have a set of data that needs to be displayed with the image wall effect. The data is dynamic and maintained using angularjs, which can be added or deleted.There are up to four cells in each row on the interface.The
Html5 canvas implements image glass fragment effects,
Today, we will bring you an image glass fragment special effect implemented by html5 canvas. The image appears in the form of a glass fragment on the interface, and then the effect of the broken
Js uses the typeof Method to Determine the undefined type, typeofundefined
Js determines the undefined type
if (reValue== undefined){alert("undefined");}
The system found that the data could not be determined, and finally found the information to
Front-end development has become popular in recent years, and more developers have joined the front-end development team. However, the front-end does not have a curriculum system in the university, and the knowledge is constantly updated. People
Comments: This article describes how to declare HTML5 and how to use HTML5 to create canvas elements. If you need it, refer to HTML5 to create canvas elements.The Code is as follows: Declaration must be the first line of the HTML document, located
Those who have developed web apps, especially front-end users, have encountered this annoying thing. JS or CSS code changes, but the mobile browser does not update any refresh. the cache of mobile browser is particularly bad.
So I am posting a
JavaScript code in the address bar of an HTML Browser
Many people should still know that JavaScript code can be directly run in the browser address bar. The method is to start with javascript: followed by the statement to be executed. For
Comments: This article mainly introduces the html5 positioning and display examples on Baidu map. For more information, see
When developing a mobile web or webapp, when using the Baidu map API, you often need to locate the current location on your
Comments: HTML5 introduces many interesting new features, some of which are embodied in HTML and some are JavaScript APIs, all of which are very useful. One of my favorite features is the placeholder attribute in the text box (INPUT ).
The
Comments: HTML5 brings us a lot of amazing things. Previous tasks that need to be completed using JavaScript and Flash, such as form verification, INPUT placeholders, client renaming and downloading files and audio/video, can be completed using
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