android, How to rename a file?

Question

In my application, I need to record video. Before start of recording in I'm assigning a name and directory to it. After recording is finished user has ability to rename his file. I wrote following code but seem it doesn't work. When user enters name of file and click on button I'll do this: ``` private void setFileName(String text) { String currentFileName = videoURI.substring(videoURI.lastIndexOf("/"), videoURI.length()); currentFileName = currentFileName.substring(1); Log.i("Current file name", currentFileName); File directory = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES), MEDIA_NAME); File from = new File(directory, "currentFileName"); File to = new File(directory, text.trim() + ".mp4"); from.renameTo(to); Log.i("Directory is", directory.toString()); Log.i("Default path is", videoURI.toString()); Log.i("From path is", from.toString()); Log.i("To path is", to.toString()); } ``` Text: is the name which is entered by user. Current Filename: is…

Accepted Answer

The problem is in this line,

```
File from = new File(directory, "currentFileName");
```

Here `currentFileName` is actually a String you dont have to use `"`

try it this way,

```
File from      = new File(directory, currentFileName  );
                                    ^               ^         //You dont need quotes
```

android, How to rename a file?

Solution

Problem