Re: Modifying basic AU to create view without NIB?
Re: Modifying basic AU to create view without NIB?
- Subject: Re: Modifying basic AU to create view without NIB?
- From: Brian Willoughby <email@hidden>
- Date: Fri, 21 Jan 2011 12:39:19 -0800
This property returns two pieces of information: The URL of a bundle,
and the name of an Objective C class. You cannot change the design
of this property, and thus you must return a valid URL of a bundle
that will successfully load, and that bundle must contain dynamically
loadable ObjC code that provides the named class. More specifically,
if CFBundleCopyResourceURL() is returning nil, then something is
wrong with your bundle, or it is not located anywhere that it can be
found. Fix that first before trying to move on.
Brian Willoughby
Sound Consulting
On Jan 21, 2011, at 12:21, Howard Moon wrote:
I'm just getting familiar with Cocoa and Objective-C, and my first
desire is to replace the NIB-loaded view class with a view I create
in code. I've been trying to find a simple example of this, but am
having a lot of trouble doing so.
One task it seems I need to tackle is in the main AUEffectBase-
derived class... I need to modify the code in GetProperty for the
kAudioUnitProperty_CocoaUI. The existing code is like this:
case kAudioUnitProperty_CocoaUI:
{
// Look for a resource in the main bundle by name and type.
CFBundleRef bundle = CFBundleGetBundleWithIdentifier( CFSTR
("com.audiounit.TestAU") );
if (bundle == NULL) return fnfErr;
CFURLRef bundleURL = CFBundleCopyResourceURL( bundle,
CFSTR("TestAU_CocoaViewFactory"),
CFSTR("bundle"),
NULL);
if (bundleURL == NULL) return fnfErr;
AudioUnitCocoaViewInfo cocoaInfo;
cocoaInfo.mCocoaAUViewBundleLocation = bundleURL;
cocoaInfo.mCocoaAUViewClass[0] = CFStringCreateWithCString(NULL,
"TestAU_CocoaViewFactory", kCFStringEncodingUTF8);
*((AudioUnitCocoaViewInfo *)outData) = cocoaInfo;
return noErr;
}
Since removing the .xib file from the project, the
CFBundleCopyResourceURL returns nil. So what would I do here in
order to use a custom view without a nib? How do I fill iin the
AudioUnitCocoaViewInfo structure?
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