Android 访问资源文件

发布于 2024-12-07 05:15:45 字数 962 浏览 4 评论 0原文

我想访问位于类的资产下的文本文件，该类将对该文件进行一些处理并在我的活动中调用。我使用的代码是：

AssetManager assetManager = getAssets();
InputStream instream = assetManager.open("file.txt");

如果在 Activity 类中使用，则效果很好，但如何使其在普通 java 类中工作？

编辑

JamesBlack - 因为如果我传递输入流，那么下面的代码将不起作用

for (int i = 0; i < gestureNumbers.size(); i++) {
   BufferedReader bf = new BufferedReader(new InputStreamReader(instream));
   // possible error here
   while ((line = bf.readLine()) != null) {  ...  }
}

即使gestureNumbers.size() > 1 那么 while 循环只执行一次，一旦读取文件一次，它就等于 null。

当以下代码可以工作但我无法在普通 java 类中打开文件时，它可以在活动类中工作，并且我不想在一个类中包含太多代码。

for (int i = 0; i < gestureNumbers.size(); i++) {
   InputStream instream = assetManager.open("BSL_Word_POS.txt");
   BufferedReader bf = new BufferedReader(new InputStreamReader(instream));
   // possible error here
   while ((line = bf.readLine()) != null) { ... }
}

原文

I want to access a text file located under assets from a class that would do some processing on that file and is invoked in my Activity. The code I am using is:

AssetManager assetManager = getAssets();
InputStream instream = assetManager.open("file.txt");

this works fine if used in an Activity class but how to make it work in a plain java class?

Edited

JamesBlack - because if i pass the inputstream then the following code won't work

for (int i = 0; i < gestureNumbers.size(); i++) {
   BufferedReader bf = new BufferedReader(new InputStreamReader(instream));
   // possible error here
   while ((line = bf.readLine()) != null) {  ...  }
}

Even if the gestureNumbers.size() > 1 then the while loop is executed only once and then it equals null once it read the file once.

When the following code works but I can't open the file in plain java class, it works in activity class and I don't want to have too much code in one class.

for (int i = 0; i < gestureNumbers.size(); i++) {
   InputStream instream = assetManager.open("BSL_Word_POS.txt");
   BufferedReader bf = new BufferedReader(new InputStreamReader(instream));
   // possible error here
   while ((line = bf.readLine()) != null) { ... }
}

分享到QQ

分享到微博