Appcelerator Titanum Delete File in tmpdirectory - titanium

Question

I am using Appcelerator Titanium 3.0.2 to allows user to watch/download videos&audios. Here is part of code to get the file object and play the audio.
var filename = self.url.substring(self.url.lastIndexOf('/')+1);
var file = Ti.Filesystem.getFile(Ti.Filesystem.tempDirectory,filename);
if(!file.exists())
self._download(self.url, filename, Ti.Filesystem.tempDirectory, function(){
setAudUrl(file.nativePath);
timeBar.max = audPlayer.duration*1000;
prgHandle = setInterval(updateProgressBar,10000);
audPlayer.play();
audCtrlBar.show();
loading.hide();
},
function(_progress,_position){
httpClient=_position;
loading.show();
},
function(){
noLabel.show();
loading.hide();
});
else {
setAudUrl(file.nativePath);
timeBar.max = audPlayer.duration*1000;
prgHandle = setInterval(updateProgressBar,10000);
audPlayer.play();
audCtrlBar.show();
}
This code is working, but my question is how to remove the file when the user exist the app. Since Apple required that file in /tmp directory will be removed after user exist the app. Anyone can help? Thanks.

Answer 1

You could use Titanium's application events pause and paused. They are called when the app becomes inactive but this only works on iOS.
Titanium.App.addEventListener('pause' /* or paused, see docs */, function() {
var dir = Ti.Filesystem.getFile(Ti.Filesystem.tempDirectory, 'tmpDownloads'); // ensure that you use the same folder for storing the downloaded files. A separate folder is easier to remove.
if(dir.exists() && dir.isDirectory()) {
dir.deleteDirectory(true); // true removes recursively the directory and its contents
}
});
You need to create the directory again when resume-ing the app.