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#import "EMFirstAppViewController.h"
#import "EMFramework.h"
@interface EMFirstAppViewController () {
IBOutlet UIActivityIndicatorView *_activityIndicator;
NSTimer *_writeTimer;
}
@end
@implementation EMFirstAppViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[_activityIndicator setHidden:YES];
[self setTitle:[[[EMConnectionManager sharedManager] connectedDevice] name]];
[[EMConnectionManager sharedManager] readResource:@"data" onSuccess:^(id readValue) {
[[self valueLabel] setText:[NSString stringWithFormat:@"%d", [readValue intValue]]];
[[self valueSlider] setValue:[readValue floatValue]];
} onFail:^(NSError *error) {
}];
[[EMConnectionManager sharedManager] addObserver:self forKeyPath:@"connectionState" options:0 context:NULL];
}
-(void)dealloc {
[[EMConnectionManager sharedManager] removeObserver:self forKeyPath:@"connectionState"];
}
-(void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if (object == [EMConnectionManager sharedManager]) {
if ([keyPath isEqualToString:@"connectionState"]) {
if ([[EMConnectionManager sharedManager] connectionState] == EMConnectionStateDisrupted) {
[[self navigationController] popToRootViewControllerAnimated:YES];
}
}
}
}
#pragma mark - Interface actions
-(IBAction)sliderChanged:(UISlider *)sender {
[[self valueLabel] setText:[NSString stringWithFormat:@"%0.0f", [sender value]]];
if (_writeTimer) {
[_writeTimer invalidate];
_writeTimer = nil;
}
_writeTimer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(sliderDidFinishChanging:) userInfo:nil repeats:NO];
}
-(IBAction)sliderDidFinishChanging:(UISlider *)sender {
[_writeTimer invalidate];
_writeTimer = nil;
[_activityIndicator startAnimating];
[_activityIndicator setHidden:NO];
[[EMConnectionManager sharedManager] writeValue:[NSNumber numberWithFloat:[[self valueSlider] value]] toResource:@"data" onSuccess:^{
[_activityIndicator setHidden:YES];
[_activityIndicator stopAnimating];
} onFail:^(NSError *error) {
}];
}
@end
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