Question

            try {
                inputStream = assetManager.open("model.obj");
                if (inputStream != null)
                {
                    Log.d("aaa", "It worked!");

                    //Get length of inputstream
                    for(int i=0;i<inputStream.available();i++)
                    {

                    }
                     //String line = null, input="";

                    /*while( (line = inputStream. ) != null ) 
                    {
                        input += line;
                    }*/
                }
            } catch (IOException e) {
                e.printStackTrace();
            }

我有inputStream，它看起来像是原始字节，我可以从inputStream获取一些字节并循环。我实际想要做的是循环读取文件中的每一行，并在空格字符上拆分，如split（“”）。可以将inputStream转换成某种形式，更方便读取行和拆分空格字符吗？

谢谢！

Answer 1

您可以按如下方式使用BufferedReader类的readLine()方法来检测是否存在新行。

InputStream is = new ByteArrayInputStream("file content".getBytes());

//read it with BufferedReader
BufferedReader br  = new BufferedReader(new InputStreamReader(is));

StringBuilder sb = new StringBuilder();

String line;
while ((line = br.readLine()) != null) 
{
   // perform your task here 
}

Answer 2

Scanner课程将派上用场。您可以将输入流传递给扫描仪类，然后轻松地将它们作为线条。

try {
  inputStream = assetManager.open("model.obj");
  Scanner sc;
  if (inputStream != null) {
    sc = new Scanner(inputStream); // also has a constructor which take in a charsetName
    while(sc.hasNextLine()) {
      sc.nextLine();
    }
  }
} catch (IOException e) {
  e.printStackTrace();
}

Answer 3

BufferedReader br = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
String line;
while ((line = br.readLine()) != null) 
{
   // perform your task here 
}

Answer 4

这是Assets ....的代码读取文件。

AssetManager assetManager = getResources（）。getAssets（）; InputStream inputStream = null;

try {
    inputStream = assetManager.open("foo.txt");
        if ( inputStream != null)
            Log.d(TAG, "It worked!");
    } catch (IOException e) {
        e.printStackTrace();
    }

不要使用InputStream is = assetManager.open（“assets / foo.txt”）;

Try this link分割你需要的东西......

Android inputStream。检查换行并分割

4 个答案: