如果我在一个视图中播放声音，有谁知道是否可以从另一个视图控制音量，如果可以，有人可以解释一下吗？我想不通，我没有代码可以显示音量。
从一个视图调用声音，而音量滑块在另一个视图上。我已经对两者进行了编码。
声音的代码是
#import `<AVFoundation/AVAudioPlayer.h`>
#import "LeftViewController.h"
@implementation LeftViewController
- (IBAction)buttonrm:(id)sender
{
[self dismissModalViewControllerAnimated:YES];
}
- (IBAction)playl {
[theAudio play];
}
- (IBAction)pausel {
[theAudio pause];
}
/*
// The designated initializer. Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
// Custom initialization
}
return self;
}
*/
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
NSString *path =[[NSBundle mainBundle] pathForResource:@"The Noisettes - Never Forget You" ofType:@"mp3"];
theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];
theAudio.delegate = self;
//[theAudio play];
[super viewDidLoad];
}
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft);
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[super dealloc];
}
@end
滑块的代码是
- (void)viewDidLoad {
[super viewDidLoad];
CGRect sliderRect = CGRectMake(46,124,169,0);
UISlider *VolumeL = [[UISlider alloc] initWithFrame:sliderRect];
VolumeL.minimumValue = 0;
VolumeL.maximumValue = 100;
VolumeL.continuous = YES;
UIImage *sliderctrl = [UIImage imageNamed:@"VolumeL.png"];
//UIImage *stetchLeftTrack = [[UIImage imageNamed:@"volumel12.png"]
//stretchableImageWithLeftCapWidth:5.0 topCapHeight:0.0];
[VolumeL setThumbImage:sliderctrl forState:UIControlStateNormal];
//[VolumeL setMinimumTrackImage:stetchLeftTrack forState:UIControlStateNormal];
[VolumeL addTarget:self action:@selector(sliderAction:) forControlEvents:UIControlEventValueChanged];
VolumeL.transform = CGAffineTransformRotate(VolumeL.transform, 270.0/180*M_PI);
[self.view addSubview:VolumeL];
[VolumeL release];
}