THIS IS WORK IN PROGRESS. HELP OUT IMPROVE IT
The Mission: Create a common way for Ti apps to download multiple files in a background thread. The more work the module can do - the better. We do not want to spam the JS thread with too much info. e.g. if you use the event "progress" you keep spamming the JS thread - hence not really getting anything out of threading.
This is a download module for Appcelerator Titanium that allows you to add urls and download the files in the background.
To access this module from JavaScript, you would do the following:
var NappDownloadManager = require("dk.napp.downloadmanager");
The downloader variable is a reference to the Module object.
NappDownloadManager.NETWORK_TYPE_WIFI
NappDownloadManager.NETWORK_TYPE_MOBILE
NappDownloadManager.NETWORK_TYPE_ANY
NappDownloadManager.DOWNLOAD_PRIORITY_LOW
NappDownloadManager.DOWNLOAD_PRIORITY_NORMAL
NappDownloadManager.DOWNLOAD_PRIORITY_HIGH
NappDownloadManager.addEventListener('progress', handleEvent);
NappDownloadManager.addEventListener('paused', handleEvent);
NappDownloadManager.addEventListener('failed', handleEvent);
NappDownloadManager.addEventListener('completed', handleEvent);
NappDownloadManager.addEventListener('cancelled', handleEvent);
NappDownloadManager.addEventListener('started', handleEvent);
handleEvent for started will have a reason property with either 'start' or 'resume'
All events send an object of the download information. Example of event handler
function handleEvent(e) {
e.name;
e.url;
e.downloadedBytes;
e.totalBytes;
e.filePath;
e.createdDate;
e.priority;
}
NappDownloadManager.maximumSimultaneousDownloads = 4;
var maxDownloads = NappDownloadManager.getMaximumSimultaneousDownloads();
NappDownloadManager.setMaximumSimultaneousDownloads(4);
NappDownloadManager.permittedNetworkTypes = NappDownloadManager.NETWORK_TYPE_ANY;
var maxDownloads = NappDownloadManager.getPermittedNetworkTypes();
NappDownloadManager.setPermittedNetworkTypes(NappDownloadManager.NETWORK_TYPE_WIFI);
NappDownloadManager.addDownload({
name:'Some name',
url:'http://host/file',
filePath: 'native file path',
priority: NappDownloadManager.DOWNLOAD_PRIORITY_NORMAL
});
Important
The downloader starts immediately downloading the files, after you add them! Be sure to set any event listeners before adding your first file or it might not get called!
NappDownloadManager.stopDownloader();
NappDownloadManager.restartDownloader();
NappDownloadManager.pauseAll();
NappDownloadManager.pauseItem('http://host/file');
NappDownloadManager.resumeAll();
NappDownloadManager.resumeItem('http://host/file');
NappDownloadManager.cancelItem('http://host/file');
NappDownloadManager.deleteItem('http://host/file');
NappDownloadManager.getDownloadInfo('http://host/file');
NappDownloadManager.getAllDownloadInfo();
var NappDownloadManager = require('dk.napp.downloadmanager');
NappDownloadManager.permittedNetworkTypes = NappDownloadManager.NETWORK_TYPE_ANY;
NappDownloadManager.maximumSimultaneousDownloads = 4;
NappDownloadManager.addEventListener('progress', function(e) {
var progress = e.downloadedBytes * 100.0 / e.totalBytes;
var text = e.downloadedBytes + '/' + e.totalBytes + ' ' + Math.round(progress)+ '% ' + e.bps + ' bps';
});
NappDownloadManager.addDownload({name: 'name 1', url:URL1, filePath:file1.nativePath, priority: NappDownloadManager.DOWNLOAD_PRIORITY_NORMAL});
NappDownloadManager.addDownload({name: 'name 2', url:URL2, filePath:file2.nativePath, priority: NappDownloadManager.DOWNLOAD_PRIORITY_LOW});
NappDownloadManager.addDownload({name: 'name 3', url:URL3, filePath:file3.nativePath, priority: NappDownloadManager.DOWNLOAD_PRIORITY_HIGH});
NappDownloadManager.addDownload({name: 'name 4', url:URL4, filePath:file4.nativePath, priority: NappDownloadManager.DOWNLOAD_PRIORITY_LOW});
-
v1.1.2
- Bugfix. Better handling of invalid for forbidden download links.
-
v1.1.1
- Improvement. Better handling of Progress Event. Now it fires twice every second, instead of all the time. This limits the UI thread, if you update UI to show download progress.
-
v1.1.0 (iOS)
- Added 64bit support
-
v1.0.0
- init
Mads Møller
web: http://www.napp.dk
email: [email protected]
twitter: @nappdev
Original work by Kevin Willford
The MIT License (MIT)
Copyright (c) 2010-2014 Mads Møller
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of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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