Question

如何在其他应用程序可以看到的公共存储中写入文本文件。即文件管理器。我的代码有什么问题。

String filename = "kontaktebi123.vcf";
    FileOutputStream outputStream;

    try {
        outputStream = openFileOutput(filename, Context.MODE_PRIVATE);
        PrintWriter osw = new PrintWriter(outputStream);
        ArrayList<String> nomrebi = numberGenerator(view);
        osw.printf("blablabla")
        osw.flush();
        osw.close();

    } catch (Exception e) {
        e.printStackTrace();
    }

Answer 1

您必须将文件写入Document，Download等公共目录中。

String fileDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath();
String fileName = "kontaktebi123.vcf";

File file = new File(fileDir + "/" + fileName);

现在写入文件，其他应用将可以看到该文件。

Answer 2

try{
FileOutputStream fileOutStream =  openFileOutput(fileName.txt",MODE_PRIVATE);
OutputStreamWriter outputWriter = new OutputStreamWriter(fileOutStream);
outputWriter.write("write your text here");
outputWriter.close();
Toast.maketext(context,"File Saved Successfully",Toast.LENGTH_SHORT).show();
}catch(Exception e){
e.printStackTrace();
}

将文本文件写入设备的存储中

2 个答案: