android - 从移动设备中的android中的txt文件读取

Question

我已经有几个 txt 文件。我想在我的应用程序中读取这些文件。我单击按钮并选择 txt 文件的名称并读取它。我怎么做？请帮助我。

Answer 1

可以把文件放到项目的asset目录下使用

      AssetManager am = context.getAssets();

我认为这个链接可以帮助你：http ://www.technotalkative.com/android-read-file-from-assets/

Answer 2

您可以使用以下代码清单来读取文本文件的内容。

获取路径：

File file = app.getFilesDir();
String path = file.getAbsoluteFile().getAbsolutePath() + "<filename.extension>";

--------------------------------------------------------

public static String readAllContents(String path) {

    String fileContents = null;

    try {
        InputStream inputStream = new FileInputStream(path);
        if ( inputStream != null ) {
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            String receiveString = "";
            StringBuilder stringBuilder = new StringBuilder();

            while ( (receiveString = bufferedReader.readLine()) != null ) {
                stringBuilder.append(receiveString);
            }

            inputStream.close();
            fileContents = stringBuilder.toString();
        }
    }

    catch (FileNotFoundException e) {
        Log.e("exception", "File not found: " + e.toString());
    } catch (IOException e) {
        Log.e("exception", "Can not read file: " + e.toString());
    }

    return fileContents;
}