Take photo with AIR on iOS

Hey guys,

Recently, I’ve worked on a mobile project and camera use drives me crazy about performances. On iOS, after taking a photo and validate it, it freezes the application during one minute to be able to encode it.
I’ve made lots of tests with several libraries, using Alchemy ones, and finally the fastest way (less than 5 seconds) is to use the new BitmapData encode method, available since Flash Player 11.3 and AIR 3.3.

Here is the code (lots of code come from this excellent post) :

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if (CameraUI.isSupported) {
	viewsAC.addItem({label:"Take Photo", icon:cameraIcon});
	myCam = new CameraUI();
	myCam.addEventListener(MediaEvent.COMPLETE, onCameraComplete);
}
 
protected function onCameraComplete(evt:MediaEvent):void
{
	sqlStatement = new SQLStatement();
	sqlStatement.sqlConnection = model2.connection;
	sqlStatement.text =
		"INSERT INTO albumItems (album, photoFile, dateAdded) " +
		"VALUES (:album, :photoFile, :dateAdded)";
	sqlStatement.parameters[":album"] = model2.selectedAlbum;
 
	var mediaPromise:MediaPromise = evt.data;
	if (mediaPromise.file == null) {
 
		// For iOS we need to load with a Loader first
		_loader = new Loader();
		_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, imageloader_complete, false, 0, true);
		_loader.loadFilePromise(mediaPromise);
 
		return;
	} else {
 
		// Android & BlackBerry
		registerPhoto(mediaPromise.file.url)
	}
}
 
private function imageloader_complete(event:Event):void {
 
	_loader.contentLoaderInfo.removeEventListener(Event.COMPLETE, imageloader_complete);
 
	var loaderInfo:LoaderInfo = event.target as LoaderInfo;
 
	if (CameraRoll.supportsAddBitmapData) {
 
		var bitmapData:BitmapData = new BitmapData(loaderInfo.width, loaderInfo.height);
		bitmapData.draw(loaderInfo.loader);
		var file:File = File.applicationStorageDirectory.resolvePath("image" + new Date().time + ".jpg");
		var stream:FileStream = new FileStream()
		stream.open(file, FileMode.WRITE);
		var bytes:ByteArray = bitmapData.encode(bitmapData.rect, new flash.display.JPEGEncoderOptions());
		stream.writeBytes(bytes, 0, bytes.bytesAvailable);
		stream.close();
 
	}
	registerPhoto(file.url)
 
}
 
private function registerPhoto(url:String):void {
 
	sqlStatement.parameters[":photoFile"] = url;
 
	sqlStatement.parameters[":dateAdded"] = new Date();
	sqlStatement.execute();
 
	viewsList.selectedIndex = -1;
}

3 thoughts on “Take photo with AIR on iOS

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