Read file in android - file permission denied

I want to read file from external storage. I uploaded the file in Eclipse DDMS to storage/sdcard (image below). But whenever I tried to read, I got an error of permission denied. Is there any problem in my file permission? Or I need to add anything in manifest file (I am not writing anything at the moment)?

Any help will be appreciated.

Code:

public void extimport(View v){
   EditText xedittxt = (EditText) findViewById(R.id.frmexttxt);
   String xedit = xedittxt.getText().toString();
   xedit = xedit.trim();
   File file;
   file = new File(xedit);
   StringBuilder text = new StringBuilder();
   Log.d("fcheck",""+xedit);
   try {
      BufferedReader br = new BufferedReader(new FileReader(file)); //THIS LINE THROWS ERROR
      Log.d("fcheck","f3"); //This line never got printed
      String line;
      while ((line = br.readLine()) != null) {
         text.append(line);
         text.append('\n');
      }
      br.close();
      resultView = (TextView) findViewById(R.id.header);
      resultView.setText(text);
   }
   catch (IOException e) {
      Log.d("File open error",""+e);
      Toast.makeText(getApplicationContext(), "Error opening the file.", Toast.LENGTH_SHORT).show();
   }
}

LogCat:

11-19 00:21:54.252: D/fcheck(5885): /storage/sdcard/mylibman.csv
11-19 00:21:54.272: D/File open error(5885): java.io.FileNotFoundException: /storage/sdcard/mylibman.csv: open failed: EACCES (Permission denied)

回答1:

Make sure you have added the permission to read external storage in your manifest file.

 <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

回答2:

I was experiencing the same problem and it can be easily removed by following either of these steps: 1. Install your app by using -g if installing on Android N and O versions. 2. Grant permission manually Settings->apps->"app_name"->Permissions->Enable Switch

For Both steps 1 and 2, define uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" and uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" in AndroidManifest.xml