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Brief introduction:Always understand the common units in Android is not very thorough, share under today. What's not in place, welcome to point outMeaning:1, Screen Size: Physical size (cell phone diagonal size, such as 4.7, 5, 5.5 inches of mobile phones)2. Density (dpi): the pixe
obviously not the size of the i9000 screen of the test machine. Method 3: multiply the results obtained from methods 1 and 2 by the density, and then the perfect 480*800, perfect! Note:If the density is greater than 1, you must set the targetSdkVersion to 4-9. For example: However, does this mean that method 3 must be generic? The answer is no, because I also tested it on the simulator, HTC G14 physical
first, the basic concept Dip:density independent pixels, device independent pixels. DP: Just Dip PX: pixels dpi : dots per inch, which is directly the number of pixels in an inch. A common value of 120,160,240. I am generally referred to as pixel density, short density density : Direct transl
1. Screen related concepts 1.1 resolutionThe number of pixels on the screen.1.2 screen sizeIt refers to the actual physical size of the mobile phone, such as the commonly used 2.8 inch, 3.2 inch, 3.5 inch, 3.7 inchAndroid divides the sc
First, the basic concept Dip:density independent pixels, device independent pixels. DP: Just Dip PX: pixels dpi : dots per inch, which is directly the number of pixels in an inch. A common value of 120,160,240. I am generally referred to as pixel density, short density density : Direct translat
there are many users who like to use thumbs. The big difference with the thumb is that it is wider than the index finger. An adult thumb has an average width of 1 inches (2.5 centimeters) and is converted to 72 pixels. So the user is very happy to hit a 72px wide target with his thumb, both for quick and accurate positioning, for interactive feedback, and for not having to tilt the thumb in order to hit the target, so that one hand and o
. @media rules for CSSThe same CSS file, you can also choose to apply different CSS rules depending on the screen resolution. @media screen and (max-device-width:400px) { . column { Float:none; Width:auto; } #sidebar { Display:none; } } The above code means that if the screen width is less than 400
1. Screen Related concepts1.1 ResolutionIt means how many pixels are there on the screen.1.2 Screen SizeRefers to the actual physical size of the phone, such as the usual 2.8-inch, 3.2-inch, 3.5-inch, 3.7-inchAndroid divides the screen
750x1334 326 6+ 3.06 inches (77.8 mm) 6.22 inches (158.1 mm) 5.5-inch 414x736 @3x (1242x2208->)1080x1920 401 2 inch (inch) 1 inch = 2.54cm = 25.4mm 3.iphone phone width The width height (width/height) in the table above is the physical size of the phone, including the display and border. The following is the width of the iphone4s:
android. util package has a DisplayMetrics class to obtain density-related information. The most important is the member densityDpi, which has the following common values: DENSITY_LOW = 120DENSITY_MEDIUM = 160 // default value DENSITY_ TV = 213 // TV dedicated DENSITY_HIGH = 240DENSITY_XHIGH = 320DENSITY_400 = 400DENSITY_XXHIGH = 480DENSITY_XXXHIGH = 640 Example: private void getDensity() { DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); Log.d(TAG,"Densit
How big is your computer's screen size? How much does the screen resolution fit your computer's size? How much desktop wallpaper do you need to download? Did you ever get to know all this? Today Green tea small weave to take you to understand these computer wallpaper small common sense. After this tutorial netizens can
Excerpt from: http://blog.ibireme.com/2014/09/16/adapted_to_iphone6/Apple's website is designed to show that the ultra-high pixel density of the retina display has surpassed the range of human eyes to distinguish.What effect does retina have on image design (icons, splash screens and all other pixels)? If our app is to support retina, we need to provide high resolution (wide x2, high x2) images. Also, in order to support devices without retina, you st
is 360px, but the horizontal direction of the number of pixels reached 720, the pixel is the smallest display color units, that is, a 1px inside the horizontal direction of two pixels. 3.rem REM is a unit of CSS, the HTML style in the Font-size value of 1rem, we generally have the screen width of 1/10 as 1rem, s
/com.linc.listviewanimation d/mainactivity:the screen real size was point (1600, 2560) 01-13 16:39:05.476 17249-17249/com.linc.listviewanimation d/mainactivity:density is 2.0 densityDpi is the height: 2560 width:1600 xdpi 338.666 ydpi 338.66601-13 16:39:05.476 17249-17249/com.linc.listviewanimation D/ Mainactivity:the screeninches 9.433981132056605The result is 9.43 inches, and the real value is 8.91. If
unit for Android to use DP in layout. note: There is a formula Dip (DP) = device density DPI/160 * pixel = DPI/160 * pixel for example: the device density of c8813 is densitydpi = 240 So dip = 240/160 * pixel = 1.5 Pixel If DPI = 160, 1dp = 1 pixel (PX)6: SP magnification pixels are mainly used for font display (best for textsize ). According to Google's suggestion, it is best to use SP as the unit for the font s
According to the screen size and resolution, IOS currently has six versions.1, 3gs; 2, 4S: Representative; 3, iphone5; 4, ipad2: Representative; 5, ipad4: Representative; 6, iPad Mini.Only when the resolution is different, such as the first, second, or fourth, the development can provide two kinds of resolution, automatically recognized by the application?It's just the case that the sizes are different. For
Screen Size: I. Different Layout The screen sizes of Android mobile phones vary by 480X320,640x360,800 X. How can an app automatically adapt to different screens?In fact, it is very simple, just need to create different layout folder under the res directory, such as layout-640x360, layout-800x480, all the layout files will be written to R after compilation. java,
Now more and more large-screen computer equipment, 1920x1080 pixels and higher resolution of the screen makes the picture more delicate and beautiful, but the higher resolution of the large size screen will sometimes have some trouble, although the unit area can show more
Android to get the screen longer than the width, referring to the online have a lot of code, but the results and the actual discrepancy, such as my phone is i9000, screen size is 480*800px, the result is 320*533 result is very unreliable, so I wrote a few lines of code, pro-Test Test parameters: Test environment: i9000 (Samsung) physical
Strange shape of the small screen mobile phone all-powerful era is gone forever. In fact, industry trends in recent years have shown that large-screen handsets, or giant-screen handsets, will dominate for a long time. And now, it is time to sum up the past few years, the face of large screen mobile phones, the designer
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