iPhone slide-up view controller for audio player controls? - iphone

Question

I have a short audio clip that plays when a button is pressed. I want to create a slide-up controller from the bottom that contains a pause/play button and a slider bar displaying the length of the audio. I also want the view behind the controller to remain scrollable while the controller is visible. I believe this excludes using a UIAlertView or UIActionSheetView as both cause the view below to remain static. What is the best way to implement this?
EDIT: i found a helpful tutorial here: http://iosdevelopertips.com/user-interface/sliding-views-on-and-off-screen-creating-a-reusable-sliding-message-widget.html
and I was able to modify this to get something of what I want. However, if I would like to animate using a nib file where/how would i call this?
#import "SlidingMessageController.h"
#interface SlidingMessageController(private)
- (void)hideMsg;
#end
#implementation SlidingMessageController
#pragma mark -
#pragma mark Private Methods
- (void)hideMsg;
{
// Slide the view off screen
CGRect frame = self.frame;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:.75];
frame.origin.y = 480;
frame.origin.x = 0;
self.frame = frame;
//to autorelease the Msg, define stop selector
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(animationDidStop:finished:context:)];
[UIView commitAnimations];
}
- (void)animationDidStop:(NSString*)animationID finished:(BOOL)finished context:(void *)context
{
[self removeFromSuperview];
[self release];
}
#pragma mark -
#pragma mark Initialization
- (id)initWithDirection:(int)dir;
//- (id)initWithTitle:(NSString *)title message:(NSString *)msg
{
if (self = [super init])
{
//Switch direction based on slideDirection konstant
switch (dir) {
case kSlideUp: //slideup
// Notice the view y coordinate is offscreen (480)
// This hides the view
// What should I be doing here if I want to get the nib file???
self.frame = CGRectMake(0,480,320, 90);
[self setBackgroundColor:[UIColor blackColor]];
[self setAlpha:.87];
newY = 380;
newX = 0;
myDir = 0;
break;
default:
break;
}
}
return self;
}
#pragma mark -
#pragma mark Message Handling
- (void)showMsgWithDelay:(int)delay
{
// UIView *view = self.view;
CGRect frame = self.frame;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:.75];
// Slide up based on y axis
// A better solution over a hard-coded value would be to
// determine the size of the title and msg labels and
// set this value accordingly
frame.origin.y = newY;
frame.origin.x = newX;
self.frame = frame;
[UIView commitAnimations];
// Hide the view after the requested delay
[self performSelector:#selector(hideMsg) withObject:nil afterDelay:delay];
}
#pragma mark -
#pragma mark Cleanup
- (void)dealloc
{
if ([self superview])
[self removeFromSuperview];
[super dealloc];
}
#end

Answer 1

What do you mean with a "slide-up controller"? Just a view that slides up from the bottom? If so, you can just create a UIView with the buttons in it, and animate it. For the animation you can use UIView beginAnimations:context: and commitAnimations.