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resolution Description Vga 480*640 Standard Video Interface resolution QVGA 240*320 Only One-fourth of VGA HVGA 480*320 Only One-second of VGA, use less, development use WVGA 480*800

taking a closer look at the contents of the file.The foldersThese contain PNG images named in numbers, starting from something like 0000.jpg or 00001.jpg and proceeding with Incremen TS of 1. There have to be at least one folder, and there are no known upper limit to the number of folders.The Desc.txt fileThis file defines how the images in the folder (s) is displayed during the boot animation, in the following format:Width Height Frame-rateP Loop Pause Folder1P Loop Pause Folder2An example of

screens: The following table ScreenTyep WidthPixels HeightPixels SizeRange (inches) Screen density QVGA 240 320 2.6-3.0 Low WQVGA 240 400 3.2-3.5 Low Fwqvga 240 432 3.5-3.8 Low HVGA 320 480 3.0-3.5 Medium WVGA 480

, HVGA, and QVGA, and do not rely on pixels. The corresponding formula for dip and specific pixel values is the dip value = device density/160* pixel value, which can be seen on devices with a dpi (pixel density) of 160dpi 1px=1dip sp (scaledpixels magnified pixels) is primarily used for font display (best for TEXTSIZE). According to Google's suggestion, TextView's font size is best to use SP to do units, and view the source of TextView know that Android by default

Apache is still relatively cool, with its own Rotatelog program, edit the Apache master configuration file, the following changes:Comment out the following two linesErrorlog Logs/error_logCustomlog Logs/access_log CommonThen add the following two linesErrorlog "|bin/rotatelogs logs/errorlog.%y-%m-%d-%h_%m_%s 2M +480″Customlog "|bin/rotatelogs logs/accesslog.%y-%m-%d-%h_%m_%s 2M +480″commonThe meanings are a

1 common resolutions for Android phones today1.1 Common resolutions for mobile phones:4:3VGA 640*480 (Video Graphics Array)QVGA 320*240 (Quarter VGA)HVGA 480*320 (half-size VGA)SVGA 800*600 (Super VGA)5:3WVGA 800*480 (Wide VGA)16:9FWVGA 854*480 (full Wide VGA)HD 1920*1080 High DefinitionQHD 960*540720p 1280*720 SD1080p

Adaptation principle: proportional scaling.Because only the width and height are scaled in proportion to1 picture does not deform2 The proportions of the long and wide coordinates that are logically formed are consistent. For example, the width 2pt represents 4 pixels, the height 2pt represents 4 pixels, does not appear the same logical length actually represents the pixel length is different.Like what:The adaptation is primarily for background images and UI elements.11 Background picture width

Next, let's take a look at the log configuration commands in linux and windows.Linux system configuration method:Change it The code is as follows:Copy code ErrorLog "|/usr/local/apache/bin/rotatelogs/home/logs/www/% Y _ % m _ % d_error_log 86400 480 Prime;CustomLog "|/usr/local/apache/bin/rotatelogs/home/logs/www/% Y _ % m _ % d_access_log 86400 480 Prime; common # This is the log code

(1) drawable-hdpi contains high-resolution images, such as WVGA (480x800), FWVGA (480x854)(2) drawable-mdpi contains medium-resolution images, such as HVGA (320x480)(3) drawable-ldpi contains low-resolution images, such as QVGA (240x320)ldpi:240x320mdpi:320x480hdpi:480x800, 480x854xhdpi: at least 960*720xxhdpi:1280x7201 common resolutions for Android phones today1.1 Common resolutions for mobile phones:4:3VGA 640*480 (Video Graphics Array)QVGA 320*240

model ChangesCoordinates: Indicates the physical size of the screen, the coordinates become larger, indicating that the machine screen size has become larger;Pixels: Indicates the size of the screen picture, with a correspondence between coordinates, such as 1:1 or 1:2, etc.;PPI: A scale value representing the physical size of the screen to the size of the picture, and the scale of the coordinates and pixels will not change if the PPI is not changed; iphone 4 iphone, iphone3/3g models do

PX: is the pixel of the screen in: inches MM: millimeter PT: LB, 1/72 inch DP: A density-based abstract unit, 1dp = 1px dip: equivalent to dp SP: it is similar to DP, but it also scales according to the user's font size preference. SP is recommended as the unit of text, and dip is recommended for others The following is an overview of the relationship between DIP and PX:Qvga screen density = 120; qvga (240*320) Hvga screen density = 160; hvga (320*

picture physical path according to URI * **/ Public StaticString Getabsoluteimagepath (URI Uri, activity activity) {string[] proj={MediaStore.Images.Media.DATA}; Cursor Cursor= Activity.managedquery (URI, Proj,NULL,NULL,NULL); intColumn_index =cursor. Getcolumnindexorthrow (MediaStore.Images.Media.DATA); Cursor.movetofirst (); returncursor.getstring (Column_index); } //according to the path, and after the compression of the wide height to get pictures, Public StaticBitmap Geti

At present, there are more and more Windows Phone devices and more sizes and resolutions on the market, especially the arrival of the wp8.1 era. People who have worked on WP development know that application adaptation is much simpler than Android. One important reason is that Microsoft claims that all WP devices will develop with two benchmark resolutions, that is, 800: 480 and 853: 480. The application ad

Http://bbs.meizu.com/viewthread.php? Tid = 1889083 page = 1 Pixels = dips * (density/160)Density = 240;1dip = 1.5px Low Density (120 ),Ldpi Medium Density (160 ),Mdpi High density (240 ),Hdpi SmallScreen ·Qvga (240 ×320 ),2.6 ~3.0 inch NormalScreen ·Wqvga (240 ×400 ),3.2 ~3.5 inch·Fwqvga (240 ×432 ),3.5 ~3.8 inch ·Hvga (320 ×480 ),3.0 ~3.5 inch ·WVGA (4