Spawning Quicktime in a Sandboxed Mac App - objective-c

Question

I had asked a previous question about an issue I was having with AVPlayerView. After toying with it a bit, I actually like my mac app looks and runs a lot better when, instead of opening a new window with an AVPlayerView, it launches QuickTime, and tells it to open my http url of a video. I have come up with a few ways to do this, all of which work without sandboxing and none of which work with. I am currently using an NSTask to essentially
open -a "Quicktime Player" "http://example.com/video.m4v"
Again, this works, but only when my app is not sandboxed. Is there any way to do this in a sandboxed app?
Thanks in advance for any input or suggestions.

Answer 1

Sandbox doesn't allow to work with NSTask by default. Use the appropriate entitlement.
To open quicktime and start playing a movie you're probably better off using NSWorkspace like this:
[[NSWorkspace sharedWorkspace] openURLs:#[url]
withAppBundleIdentifier:#"com.apple.QuickTimePlayerX"
options:NSWorkspaceLaunchAsync
additionalEventParamDescriptor:NULL
launchIdentifiers:nil];
Alternatively go straight down to Launch Services where you even have more control of what and how things are launched:
NSURL *appToOpenWith = // get the URL of Quicktime using NSWorkspace URLForApplicationWithBundleIdentifier;
LSLaunchURLSpec inLaunchSpec;
inLaunchSpec.appURL = (__bridge CFURLRef) appToOpenWith;
inLaunchSpec.itemURLs = (__bridge CFArrayRef) ([NSArray arrayWithObject:theNSURLPointingToYourM4V ]);
inLaunchSpec.passThruParams = NULL;
inLaunchSpec.launchFlags = kLSLaunchDefaults; // could be done async... are we here in the main thread?
inLaunchSpec.asyncRefCon = NULL;
CFURLRef outLaunchedURL;
OSStatus diditOpen = LSOpenFromURLSpec (&inLaunchSpec, &outLaunchedURL);
if (noErr != diditOpen) {
NSLog(#"couldn't open selected items with error: %i", diditOpen);
} else {
NSLog(#"opened with: %#", [(__bridge NSURL*)outLaunchedURL description]);
}