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要从附件中读取数据,我使用:

Uri dataUri = getIntent().getData();
ContentResolver cr = getContentResolver();
String readXmlString = "";
try {
    InputStream inputStream = cr.openInputStream(dataUri);
    readXmlString = FileUtils.readFromInputStream(inputStream);
} catch (FileNotFoundException e) {
    e.printStackTrace();
}

在大多数设备上,此代码运行良好,但在 Kindle Fire 上我有问题。我已经调试过了。当内容解析器尝试打开输入流时会出现问题。所以,我在 readXmlString 中有这样的东西:�۝�+v�(�קi�^����%z��

我的 readFromInputStream 的代码:

public static String readFromInputStream(InputStream inputStream){
    StringBuilder total = new StringBuilder();
    try {
        BufferedReader r = new BufferedReader(
                new InputStreamReader(inputStream)); //also tried: new InputStreamReader(inputStream, "UTF-8")
        String line;
        while ((line = r.readLine()) != null) {
            total.append(line);
        }
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return total.toString();
}
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