* Two languages are available in flex development.
1. mxml
2. ActionScript
* Two Component sets are used in flex.
1. component set used in earlier versions of Mx (MX. *) Flex
2. component set used by Spark (spark. *) flex4 and later versions.
Spark has more skin appearance
. addeventlistener ("leak", B. leakhandler );
The "listener" attribute of object A creates a reference pointing to the leakhandler method of object B, as shown in,
Figure 1. register an event listener reference diagram
Even if B is set to null, As long as object A is not recycled, B will not be recycled, leading to memory leakage. The weak quote method can be used to avoid Memory leakage, which will be described in later sections.
Introduction to
This article introduces two methods to change the tree node icon: According to whether there are child nodes to change, according to the properties of the node, flexible change icon, the specific implementation of the following, interested friends can refer to ha, I hope to help you
Method One: Depending on whether there are child nodes to change
Copy Code code as follows:
@namespace S "Library://ns.adobe.com/flex/spark";
@namespace mx "libra
Arcgis api for flex Development (2) map creationTo create an esri map in flex, you only need to use the In the As follows:The size of the map defined by width and height. id = "EsriMap" uniquely identifies this map.There are also many messages for map, the most common is creationComplete, resize and mouse message.Now that we have map, how can we let her display d
The reason I put three of them together as a topic is because I've been working on these things for most of the past couple of days. Three of them have given me a big surprise, can say that the fun is endless ah.
OK, let's say, first of all, Python.
Because of the recent dynamic language comparison fire, I always wanted to try the dynamic language. The hottest thing in the dynamic language is Python and Ruby, because Ruby is a little Jap and I have a serious anti-Japanese tendency, so I don't
Sorry, blog updates are slow, so I updated flex and so on every one day.ArticleAfter all, I was just getting started with Flex. Well, I don't need to talk much about it. Let's start learning in Chapter 2.
Most of the time, we place data in different regions to process different data, so how do we plan the data? Obviously, we can use containers to tolerate this
The first article was written more than two months ago. During the Spring Festival, at the same time, a new task was arranged at the end of last year, and I was busy with other research. There is another reason, because during the intermittent development of the Flex designer prototype system, many original design details were found to be insufficient, and a lot of detailed reconstruction and improvement were made. In the past few days, the prototype
In the last lesson, we talked about how to configure the development environment, including the room-side flex development environment, and the server-side Java development environment, and wrote a sample program for the guest house HelloWorld, but unfortunately, this one helloworld is not dynamic at the moment. If the client cannot interact with the server, then I feel that my flex is not really getting st
Arcgis api for flex advanced topic (2) Development of Custom Controls
Arcgis api for flex only provides two controls: Navigation and ScaleBar.
Describe in detail how to develop custom controls (or, maybe, I did not find them ),
The following describes my methods. To control the dynamic display of the current mouse longitude and latitude on the map
.
1. Define the
SeriesArticleNavigation
Using flex in Adobe AIR to connect to the SQLite database (1) (creating databases and tables)
Use flex in Adobe AIR to connect to the SQLite database (2) (add, delete, modify, and statement parameters)
Connecting to the SQLite database using flex in Adobe AIR (3) (query)
Conn
Through the previous exercise: Flex online game development-wuziqi game: (1) Core of the game we have made core functions of wuziqi. Now, we are doing something that is not logically important but crucial to software development and user experience. Flex is a kind of sublimation of flash and a language for programmers. It provides a good user experience. I will go further here, this game makes users feel mo
Let me give a more comprehensive example, first look at the structure of the entire project, server-side use of blazeds, the structure of
The client uses Flex Builder 3 development and the structure follows the Flex Builder 3 standard
Client.mxml for
Copy Code code as follows:
layout= "Vertical" >
Id= "Test1" >
result= "Sayhelloresult (event)"/>
result= "Sayworldresult (event)"/>
result= "
The previous article briefly introduced flex's event mechanism and four ways to process events. The main content of this article is to use custom events to transmit data between parent and child components.
In Flex development, data is often transferred between parent and child components and data can be transmitted through events. Now, a simple example is written, in a flex application, there is a textarea
From http://blog.csdn.net/spring19840513/article/details/6909442
Use Bindable metadata tag
1. used before the public class definition
Use the [Bindable] metadata to mark all the public variables defined in the class and the Public attributes with the setter and getter methods at the same time as the source of the data binding expression. In this case, [Bindable] does not use any parameters, as shown in the following code.
[Bindable]
publicclassTextAreaFontControlextendsTextArea{}
The
Purpose:
1. ArcGIS. server.9.3 and ArcGIS API for flex implement dynamic layer and tile layer overlapping display, and Display Dynamic layer on the tile base map.
Preparations:
1. Release a map service named USA in ArcGIS. server.9.3 and start the service as dynamic layer data.
2. The rest world map data service provided by ESRI is not available here. The address is http://server.arcgisonline.com/arcgis/res
be arranged vertically on the parent element .*/. Child{Display:Inline-block;vertical-align:Bottom;}The biggest difference between this example and the previous example is the addition of the Display:table-cell property, which, after adding this property, is like a cell in a table, and it is natural to use the Vertical-align property on the parent element to align the elements vertically. The vertical-bottom on the parent element is the alignment of the child element to the parent element as a
LG released G Flex 2 on CES2015, the successor to G Flex last year, still uses a unique curved fuselage, but the fuselage is more compact and uses a 5.5-inch display. Making this change is the result of LG listening to user feedback, and LG also upgrades the display resolution from HD to 1080p based on user feedback.
A year ago LG launched the G
Capturing the image in Flex 2 is actually very simple, but before you accidentally see an example on the network (but I forgot where: P), but that doesn't matter, I did a similar example, the principle is to create a ActionScript component, using Mxml to call this component, Of course you need a button to do this snapshot, and then real-time snapshot to the face version can be.
Direct Browsing Example: http
the word list separated by commas.
[Create a text that can be rotated]Use the embedded font. When you rotate the text box, the font of the device disappears.
[Display Unicode text]1. Load Unicode text from external sources;2. If your editor supports Unicode (such as Flex Builder), you can use this character directly in the ActionScript program;3. Use Unicode escape characters. All Unicode escape characters
1. There are three types of projects in flex builder 2: ax, mxml, and library. Just like vs can have class library, Asp.net web application, and console.
2. You can write mxml and as in the mxml project. As project can only be written. You can write mxml and as in the library project.
3. SWC and RSL are very important. You can create a library project to export
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