How to set UIButton tap sound in whole app? - ios

Question

Is there any way to set specific audio file as tap sound in UIButtons across whole iOS app without writing code in individual view?

Answer 1

You don't want to add any code in subclass . so you can subclass UIApplication like :
#interface PlaySound : UIApplication
#end
#implementation PlaySound
- (BOOL)sendAction:(SEL)action to:(id)target from:(id)sender forEvent:(UIEvent *)event{
if ([sender isKindOfClass:[UIButton class]]) {
//here, play sound
}
return [super sendAction:action to:target from:sender forEvent:event];
}
#end
and register your own application in main.m like:
int main(int argc, char *argv[])
{
#autoreleasepool {
NSString *appClass = #"PlaySound";
int retVal = UIApplicationMain(argc, argv, appClass, NSStringFromClass([AppDelegate class]));
return retVal;
}
}
then whenever people touches an button control , your custom application will receive this message and play sound. you don't have to write any code in any individual view.

Answer 2

You can achieve this by writing code once in AppDelegate file
In AppDelegate.m write a class method, like given below
+(void)playAlarmSound
{
NSString *sound_file;
if ((sound_file = [[NSBundle mainBundle] pathForResource:#"Output" ofType:#"aif"])){
NSURL *url = [[NSURL alloc] initFileURLWithPath:sound_file];
if (audioPlayer)
{
[audioPlayer release];
audioPlayer= nil;
}
AVAudioPlayer *audioPlayer = [[[AVAudioPlayer alloc] initWithContentsOfURL:url error:NULL]autorelease];
audioPlayer.delegate = self;
[url release];
audioPlayer.numberOfLoops=0;
[audioPlayer prepareToPlay];
[audioPlayer play];
}
}
In AppDelegate.h
+(void)playAlarmSound;
Now in your class where you want to call the above method write the below line
[AppDelegate playAlarmSound];
Note:- Import AVFoundation framework

Answer 3

I would say, create an 'Observer' class that plays the sound for all buttons are connected to. check this example.

Answer 4

creating a category is the way to go. answered by tiguero
.h:
#import <UIKit/UIKit.h>
#class SCLSoundEffect;
typedef enum {
SCLCLICKSOUND = 0,
SCLOTHERSOUND,
}
SCLSoundCategory;
#interface UIButton (soundEffect)
#property (nonatomic, strong) SCLSoundEffect *buttonSoundEffect;
+ (id) buttonWithType:(UIButtonType)buttonType andSound: (SCLSoundCategory)soundCategory;
- (void) playSound;
#end
.m:
#import "UIButton+soundEffect.h"
#import <objc/runtime.h>
#import "SCLSoundEffect.h"
static char const * const kButtonSoundEffectKey = "buttonSoundEffect";
#implementation UIButton (soundEffect)
#dynamic buttonSoundEffect;
+ (id) buttonWithType:(UIButtonType)buttonType andSound:(SCLSoundCategory) soundCategory;
{
UIButton *newButton = [UIButton buttonWithType:buttonType];
NSString *stringToUse = nil;
switch (soundCategory) {
case SCLCLICKSOUND:
stringToUse = #"button_sound.wav";
break;
case SCLOTHERSOUND:
assert(0); // To be defined
default:
break;
}
[newButton setButtonSoundEffect: [[SCLSoundEffect alloc] initWithSoundNamed:stringToUse]];
[newButton addTarget:newButton action:#selector(playSound) forControlEvents:UIControlEventTouchDown];
return newButton;
}
- (void) playSound
{
[self.buttonSoundEffect play];
}
- (SCLSoundEffect *)buttonSoundEffect {
return objc_getAssociatedObject(self, kButtonSoundEffectKey);
}
- (void)setButtonSoundEffect:(SCLSoundEffect *)buttonSoundEffect{
objc_setAssociatedObject(self, kButtonSoundEffectKey, buttonSoundEffect, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (void) dealloc
{
[self setButtonSoundEffect:nil];
}
Now each time I create a button that play some sound I just need to use the following method:
UIButton *mySoundButton = [UIButton buttonWithType:UIButtonTypeCustom andSound:SCLCLICKSOUND];