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I've always thought that the front end can only read the width and height of the picture, as well as the size of the locally uploaded image (via FileReader), but not the size of the remote picture. Yesterday when the search suddenly realized that the HTTP headers contains Content-Length parameters, this is not the size of it?! And then immediately in the console

Use php or js to get the image size, height and width. read the text and use php or js to get the image size, height and width .,? $ Arr = getimagesize ("> $ Arr = getimagesize ("images/album_01.gif ");Echo $ arr [3];$ Strarr = explode ("\" ", $ arr [3]);Echo $ strarr [1];?> Scale down demo images ScriptFunction Wa

This article summarizes several methods to obtain the size and position of a specified element using JavaScript. If you use JQuery, it is very easy to get the element size. However, we still need to know how to obtain it through Native JavaScript. For more information, see 1. Obtain the row style of an element The Code is as follows: Var obj = document. getEle

This article describes the content of PHP to get a picture width height, size, image type, for the layout of the IMG attributes, has a certain reference value, now share to everyone, the need for friends can refer to PHP comes with function getimagesize () $img _info = getimagesize (' tomener.jpg '); Echo '

How to get the view Size and view Size Many beginners will make a mistake, that is, to get the view Size in onCreate or onStart. However, in this way, the obtained wide Qualcomm is usually 0. Why? Because the measurement process of the view is not synchronized with the life

Original link: http://my.oschina.net/ypimgt/blog/62354First, get the string size by: GetTextExtentPoint32.Size *se=new size;CDC MEMDC; First define a display device objectMemdc.selectobject (font);...... Other operations related to MEMDCGetTextExtentPoint32 (Memdc.getsafehdc (), Strtext,wcslen (StrText),SE->CX and Se->

Take a photo (2) Get a full-size image, compress it, and take the photo size Package com. example. choosepictest; import java. io. file; import java. io. IOException; import java. text. simpleDateFormat; import java. util. date; import android. app. activity; import android. content. intent; import android. graphics. bitmap; import android. graphics. bitmapFact

You can send a network picture request by HttpWebRequest, then receive the returned data through HttpWebResponse, analyze the data stream to get the size and size of the picture, the code is as follows: C # send HttpWebRequest to get the size and

Public long getsdtotalsize () {/* Gets the memory card path */File sdcarddir= environment.getexternalstoragedirectory (); /*statfs See File system space Usage */StatFs statfs=new StatFs (Sdcarddir.getpath ()); Long blocksize= Statfs.getblocksizelong (); Long Totalsize=statfs.getblockcountlong (); return blocksize*totalsize;} /** * Get the remaining capacity of SD card, that can be size * @return

That's what we've been getting before.Before Android API18: Fs.getavailableblocks () *fs.getblocksize ()Currently/** gets the system available memory **/@SuppressLint ("Newapi") Private String Getmemfree () {StatFs fs = new StatFs (environment.getdatadirectory (). GetPath ()); return Formatter.formatfilesize (This, (Fs.getavailablebytes ()));} /** gets the SD available memory **/@SuppressLint ("Newapi") Private String Getsdfree () {if (Environment.getexternalstoragestate (). Equals ( environment

" width:88%;margin:30px auto; color:blue;" id="div_html">Get the current screen size size