从android中的sdcard读取特定文件 [英] reading a specific file from sdcard in android

问题描述

如何从 sdcard 读取特定文件.我已经通过 DDMS 将文件推送到 sdcard 中，我试图通过这种方式读取它，但这给了我一个例外.谁能告诉我如何准确地指向那个文件?

how to read a specific file from sdcard. i have pushed the file in sdcard through DDMS and i am trying to read it though this way but this give me exception. can anybody tell me how to point exactly on that file?

我的代码是这样的.

String path = Environment.getExternalStorageDirectory().getAbsolutePath();
FileInputStream iStream =  new FileInputStream(path);

推荐答案

您正在尝试读取目录...您需要的是文件！做这样的事情......然后，你可以随意读取文件.

You are trying to read a directory... what you need is the file! Do something like this... then, you can read the file as you want.

File dir = Environment.getExternalStorageDirectory();
File yourFile = new File(dir, "path/to/the/file/inside/the/sdcard.ext");

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