ok so I have my listener set up in my application so it is reading when I click on the external volume buttons. My question is and seems I am stuck on this is that I have two buttons in my application identified as:
- (IBAction)sendMessage:(id)sender;
- (IBAction)cancelMessage:(id)sender;
When I click on the Up ^ physical button on my iPad, I want it to link up with the,
- (IBAction)sendMessage:(id)sender;
And with the down physical button, Need to link with the, - (IBAction)cancelMessage:(id)sender;
Here is my code where I am stuck on:
#import "FirstViewController.h"
#import "AppDelegate.h"
#import "AudioToolbox/AudioServices.h"
#import <MediaPlayer/MediaPlayer.h>
@interface FirstViewController ()
@property (nonatomic, strong) AppDelegate *appDelegate;
-(void)sendMyMessage;
-(void)didReceiveDataWithNotification:(NSNotification *)notification;
@end
@implementation FirstViewController
// ADDED THIS SECTION------------------------------------------------------------
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
// ADDED THIS SECTION------------------------------------------------------------
int Count=0;
- (void)viewDidLoad
{
// ADDED THIS SECTION------------------------------------------------------------
UISwitch *switcher = [[UISwitch alloc] init];
switcher.center = self.view.center;
[switcher addTarget: self action: @selector(volumeListener_onOff:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:switcher];
// ADDED THIS SECTION------------------------------------------------------------
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
_appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
_txtMessage.delegate = self;
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(didReceiveDataWithNotification:)
name:@"MCDidReceiveDataNotification"
object:nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
// ADDED THIS SECTION------------------------------------------------------------
// ADDED THIS SECTION------------------------------------------------------------
- (void) volumeListener_onOff:(id)sender
{
UISwitch *onOff = (UISwitch *) sender;
if(onOff.on){
volumeListener = [[VolumeListener alloc] init];
[[self.view viewWithTag:54870149] removeFromSuperview];
[self.view addSubview: [volumeListener dummyVolume]];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(volumeChanged:) name:@"AVSystemController_SystemVolumeDidChangeNotification" object:nil];
}
else{
[[NSNotificationCenter defaultCenter] removeObserver:self name:@"AVSystemController_SystemVolumeDidChangeNotification" object:nil];
[[self.view viewWithTag:54870149] removeFromSuperview];
}
}
// ADDED THIS SECTION------------------------------------------------------------
// ADDED THIS SECTION------------------------------------------------------------
- (void)volumeChanged:(NSNotification *)notification{
if(volumeListener.runningVolumeNotification==FALSE){
dispatch_async(dispatch_get_main_queue(), ^{
volumeListener.runningVolumeNotification = TRUE;
MPMusicPlayerController *musicPlayer = [MPMusicPlayerController iPodMusicPlayer];
[musicPlayer setVolume:volumeListener.systemVolume];
// do what you want to accomplish here
[self.view setAlpha:0.0f];
[UIView beginAnimations:@"flash screen" context:nil];
[UIView setAnimationDuration:0.1f];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[self.view setAlpha:1.0f];
[UIView commitAnimations];
dispatch_async(dispatch_get_global_queue(0, 0), ^{
volumeListener.runningVolumeNotification = FALSE;
});
});
}
}
// ADDED THIS SECTION------------------------------------------------------------
// ADDED THIS SECTION------------------------------------------------------------
#pragma mark - UITextField Delegate method implementation
-(BOOL)textFieldShouldReturn:(UITextField *)textField{
[self sendMyMessage];
return YES;
}
#pragma mark - IBAction method implementation
- (IBAction)sendMessage:(id)sender {
[self sendMyMessage ];
}
- (IBAction)cancelMessage:(id)sender {
[self sendMyadditionMessage ];
}
#pragma mark - Private method implementation
// THIS IS THE SECTION FOR ADDITION ----------------------------------------------------------
// ---------------------------------------------------------------------------------------------
// ---------------------------------------------------------------------------------------------
-(void)sendMyMessage{
NSData *dataToSend = [_txtMessage.text dataUsingEncoding:NSUTF8StringEncoding];
NSArray *allPeers = _appDelegate.mcManager.session.connectedPeers;
NSError *error;
[_appDelegate.mcManager.session sendData:dataToSend
toPeers:allPeers
withMode:MCSessionSendDataReliable
error:&error];
if (error) {
NSLog(@"%@", [error localizedDescription]);
}
[_tvChat setText:[_tvChat.text stringByAppendingString:[NSString stringWithFormat:@"\n%@\n\n", _txtMessage.text]]];
[_txtMessage setText:@""];
// THIS IS WHAT STARTS THE COUNT FOR THE TEXT
NSString *numValue = [[NSString alloc] initWithFormat:@"%d", Count--];
_txtMessage.text = numValue;
// END CODE FOR COUNT
}
// START SECTION FOR ADDITION ---------------------------------------------------------------
// ---------------------------------------------------------------------------------------------
// ---------------------------------------------------------------------------------------------
-(void)sendMyadditionMessage{
NSData *dataToSend = [_txtMessage.text dataUsingEncoding:NSUTF8StringEncoding];
NSArray *allPeers = _appDelegate.mcManager.session.connectedPeers;
NSError *error;
[_appDelegate.mcManager.session sendData:dataToSend
toPeers:allPeers
withMode:MCSessionSendDataReliable
error:&error];
if (error) {
NSLog(@"%@", [error localizedDescription]);
}
[_tvChat setText:[_tvChat.text stringByAppendingString:[NSString stringWithFormat:@"\n%@\n\n", _txtMessage.text]]];
[_txtMessage setText:@""];
// THIS IS WHAT STARTS THE COUNT FOR THE TEXT
NSString *numValue = [[NSString alloc] initWithFormat:@"%d", Count++];
_txtMessage.text = numValue;
// END CODE FOR COUNT
if(Count == 3) {
return [self vibrate];
};
}
// END SECTION FOR ADDITION ---------------------------------------------------------------
// ---------------------------------------------------------------------------------------------
// ---------------------------------------------------------------------------------------------
-(void)vibrate
{
NSLog(@"I'm vibrating");
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}
-(void)didReceiveDataWithNotification:(NSNotification *)notification{
MCPeerID *peerID = [[notification userInfo] objectForKey:@"peerID"];
NSString *peerDisplayName = peerID.displayName;
NSData *receivedData = [[notification userInfo] objectForKey:@"data"];
NSString *receivedText = [[NSString alloc] initWithData:receivedData encoding:NSUTF8StringEncoding];
[_tvChat performSelectorOnMainThread:@selector(setText:) withObject:[_tvChat.text stringByAppendingString:[NSString stringWithFormat:@"%@ wrote:\n%@\n\n", peerDisplayName, receivedText]] waitUntilDone:NO];
}
@end
