如何从内部存储读取文件内容-Android应用

问题描述

我是使用Android的新手.已经在位置data/data/myapp/files/hello.txt中创建了一个文件.该文件的内容为"hello".如何读取文件的内容?

I am a newbie working with Android. A file is already created in the location data/data/myapp/files/hello.txt; the contents of this file is "hello". How do I read the file's content?

推荐答案

看看如何在android http://developer.android.com/guide/topics/data/data-storage.html#filesInternal

Take a look this how to use storages in android http://developer.android.com/guide/topics/data/data-storage.html#filesInternal

要从内部存储读取数据，您需要您的app文件文件夹并从此处读取内容

To read data from internal storage you need your app files folder and read content from here

String yourFilePath = context.getFilesDir() + "/" + "hello.txt";
File yourFile = new File( yourFilePath );

您也可以使用这种方法

FileInputStream fis = context.openFileInput("hello.txt");
InputStreamReader isr = new InputStreamReader(fis);
BufferedReader bufferedReader = new BufferedReader(isr);
StringBuilder sb = new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
    sb.append(line);
}

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