检查图像大小，才可以被保存到服务器 [英] Checking Image Size before it can be saved to server

问题描述

你好，请我想写存储我随身携带相机会自动将数据库图像的应用程序。不过，我要检查的图像大小（MB），才可以将其保存。

Good day, please I am trying to write an application that stores images I take with Camera automatically to a database. However i want to check the image size(MB) before it can save it.

我读了Android Camera.Capture开发商说明，并知道我不能编程调整大小。

I read the android Camera.Capture developer note and know I cannot adjust size programatically.

另外，我在一个临时文件夹中存储意识到上传到数据库是可能的，但我在寻找一个没有无临时文件夹保存前。

Also I am aware storing in a temporary folder before uploading to database is possible but I am looking for one that does without saving in a temp folder.

感谢。

推荐答案

如果您使用的是自定义的相机，然后以MB为单位。

If you are using a custom camera then in your callback you's receive a byte array just get the length of this array and divide it by 1024*1024 to get size in MB.

如果您使用的是相机的意图，那么你得到一个位图的大小可以通过使用bitmap.getRowbytes * bitmap.getHeight然后1024 * 1024除以它来获取MB大小的图像中找到

If you are using the Camera intent then you get back a Bitmap whose size can be found by using bitmap.getRowbytes * bitmap.getHeight and then divide it by 1024*1024 to get image size in MB

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