如何在android中创建一个可用于其他应用程序的文件

Question

我需要创建一个可用于其他应用程序的文件，例如。txt;我试了很多方法，但都无济于事;文件被创建，但是文件管理器(例如total commander)看不到它;这里是:

String filename = mTitle.getText().toString().trim() + ".txt";
        String string = mContent.getText().toString().trim();
        FileOutputStream outputStream;
        File file = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS), filename);
        file.mkdirs();
        file.setReadable(true);
        try {
            outputStream = openFileOutput(file.getName(), MODE_WORLD_READABLE);
            outputStream.write(string.getBytes());
            outputStream.close();
            Toast.makeText(getApplicationContext(), file.getAbsolutePath(), Toast.LENGTH_LONG).show();
            MediaScannerConnection.scanFile(
                    getApplicationContext(),
                    new String[]{file.getAbsolutePath()},
                    null,
                    new MediaScannerConnection.OnScanCompletedListener() {
                        @Override
                        public void onScanCompleted(String path, Uri uri) {
                            Log.v("grokkingandroid",
                                    "file " + path + " was scanned seccessfully: " + uri);
                        }
                    });
            new SingleMediaScanner(this, file);
        } catch (Exception e) {
            e.printStackTrace();
        }

我命令了所有权限。谢谢!

Answer 1

Replace:

openFileOutput(file.getName(), MODE_WORLD_READABLE);

:

new FileOutputStream(file);