Previous: http://www.bkjia.com/kf/201208/148369.htmlImageView can display an image, which supports reading images (such as resource files or Content providers) from multiple data sources and managing the image size to adapt to different Layout managers, allows you to scale and arrange images.
In this example, the layout file and ImageView attributes are used to set the ImageView attributes:
Non-scaled view No zoom display
Android: src = "@ drawable/sample_1 ″Android: adjustViewBounds = "true"And
Box layoutThe main function of the box layout is to divide the container area in horizontal (Ext.layout.container.HBox) or vertical (Ext.layout.container.VBox) mode. This is also a very common layout way.With the box layout, you need to specify the width (HBox) or height (VBox) of the subassembly in the subassembly, in addition to the layout configuration item defined in the container. There are two ways of specifying the width or height. One is to use width or height directly to define, one is
, this process will be repeated many times in one second.
The picture on the right is similar to the above, but now the sphere moves fast in the direction pointed by the arrow.
The shutter is opened as usual, and the film is also exposed. However, because the sphere is moving during the exposure time, the image on the film is blurred. This is what we call motion blur.
Now, I can bet that if you see any of the blurred images, you will be able to say that the ball is moving horizontally when shoot
Original address: http://www.jbxue.com/article/php/20251.htmlPhpthumb several basic parametersSome useful parameters are listed below:SRC: Address of the target imageW: the width of the output pictureH: The height of the output image (if not specified he will be scaled by the W parameter, etc.)Q: If the output is in JPG format, you can specify its output qualityBG: Background When output (if required)SW, SH, SX, SY: Local output, wide height, starting positionF: Output format, can be JPEG, PNG,
phpthumb several basic parameters
Some useful parameters are listed:
SRC: Address of the target picture
W: the width of the output picture
H: The height of the output picture (if not specified he will be scaled by the W parameter ratio)
Q: If the output is in JPG format, it can specify its output quality
BG: Background When output (if required)
SW, SH, SX, sy: Partial output, wide and high, starting position
F: Output format, can be JPEG, PNG, GIF, ICO
SFN: Output A frame in a GIF animation
Flt
. For example, to define the starting position and status of an object, a red 50x50 rectangle is located in the center of the image and then positioned on the timeline for 3 seconds, set the rectangle to 100X100 yellow. Right-click to add the animation. Such a simple animation is complete.
The following is the CSS implementation of such an animation.
像这样关于位移,颜色渐变,甚至旋转,3D效果等的动画,现在都可以用CSS来做了。CSS中的@符号首先我们来看一下CSS中的@符号。当我首先看到这个东西的时候,完全搞不懂是什么意思。于是开始尝试去一探究竟
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58x58
Icon-small.png in HD mode
Whether
IPad App Icon:
Icon Name
Dimensions
Use
is required
Icon-72.png
72x72
ipad Desktop Display
Is
Icon-50.png
50x50
Spotlight Search
Whether
Icon-29.png
29x29
The Settings app
Whether
IPhone, ipad general app Icon:
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58x58
Icon-small.png in HD mode
Whether
IPad App Icon:
Icon Name
Dimensions
Use
is required
Icon-72.png
72x72
ipad Desktop Display
Is
Icon-50.png
50x50
Spotlight Search
Whether
Icon-29.png
29x29
The Settings app
Whether
IPhone, ipad general app Icon:
version of @ 2x (144x144 pixels ).IPad search result icon (100*100 pixels): this icon appears in the system search result (Note: it is also in the system settings, if the application supports it ). The previous version uses 50x50 pixels, And Now @ 2x requires 100x100 pixels. File Name and info. plist file: Depending on the minimum version of IOS supported by your application, you may need to specify the icon file name in the info. plist file or name
pixel is a vertex. The 640x480 indicates that each image of the video is composed of 640 points in width and 480 points in height. The pixel that the camera is talking about now is also the concept, but the pixel that the camera is talking about is the product value of width and height.It is easy to understand that the more detailed the image is, the more clear the image is. Just like if you use a 5x5 board to place a graph and a 50x50 image, the 5x5
The icon is a required component of the IOS package. If you do not provide icons of various sizes required by the program, the program may fail to pass verification during uploading and publishing. IOS programs define multiple icons of different specifications for different application scenarios and distinguish them by different names. (This is the default name. If you specify the icon file name in the application configuration file, the icon here is not used ).
IPhone applications:
Ico
elements. When we stretch the form to make the container width 700, then each row will automatically accommodate 7 elements, which means that using this attribute will make the number of elements in each row automatically variable! This is a useful property in many cases. Note that itemsize does not directly set the size of the Child control, but only limits the maximum area of the Child control. For example, if the itemsize is 100x100 and the Child control is set to
29x29
Icon-small.png
Spotlight and Settings
Optional but recommended
50x50
Icon-small-50.png
Spotlight for IPAD compatibility
Recommended If you had a Settings bundle, otherwise optional but Recommended
58x58
Icon-Small@2x.png
Spotlight and Settings for IPhone 4 high Resolution
Recommended If you had a Settings bundle, otherwise optional but Recommended
Your Resources Gr
Program Example
1. Create a thumbnail and display it
The code is as follows
Copy Code
Header (' Content-type:image/jpeg ');$image = new Imagick (' image.jpg ');If 0 is provided as a width or height parameter,//aspect ratio is maintained$image->thumbnailimage (100, 0);Echo $image;?>
2. Create a thumbnail in the directory and save
The code is as follows
Copy Code
$images = new Imagick (glob) (' images/*. JPG '));foreach ($images
Effect Demo:
Click here to download the source file
Production steps:
A long time ago saw this tutorial, but has been saved its source code, online search for a half-day did not find the tutorial, so only to give everyone to do a tutorial!
First, we want to turn on Flash MX 2004. Create a new scene animation, Ctrl+j open the document Properties panel, set the background is black, frame speed for 24~48 (as you are happy, try different frame speed, as long as you feel satisfied on the line. )
(touchpoint))
{return
false;
}
return true;
}
Come on, try it!
2. Accurate hit
The difference between the touch events on the phone and the computer is that we click with the mouse on the computer, while using the finger to press the phone, the precision of the touch is self-evident! Let's take a look at the following picture:
Let's look at the X button in the upper right corner, it should be very difficult to click on the phone! His real size should be the area of the red rectan
I have been away from the company for more than 2 months and have written a lot of tools before, but on the day I left the company I personally formatted all the accumulated tools and code for the year. Today I think of a problem that I have encountered in the project and record it today.
I am in the optimization of memory, encountered some pictures in the load when it is difficult to loading, found some skills icon, small size 50x50, but the pictu
, remember to add rel= "me" to the connection, as shown below.
Step two: Next you have to make sure that all the posts you write have a link to the "About Me" page. The hyperlink should have a rel= "author" feature, as follows:
Step three: The last step. Sign in to your Google profile page to add a custom combo point to your "about Me" page. Tick and save before the My exclusive page option.
Three steps to get it done. Next, wait for Google to capture your content and test the link. Open
Key frameWhat is a keyframe. As with the description of the flash principle, we know that the animation is actually composed of many static images, the first such static picture can be expressed as a frame. The keyframes are those that reflect physical changes in the animation process.As in the previous example, the element div was changed from 50x50 Red to state 100x100 yellow, and the two states at the end played a key role in defining the animation
naked eye, it may feel that the image lacks some sharpness or a little color difference (but it is acceptable ).
It is represented by an image:
For the above two problems, I made a demo (Intranet access) mad here.
In the demo, 100x100 images are placed in the img container of 100 x, 50x50, and 25x25, respectively, and displayed on the retina screen.
Bar ChartThrough a magnifier, we can see that the values of the border pixels are different:
Figu
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