Buttons doesn't work
I have UINavigationBar
with buttons than have been created using custom view. I added a target with selector for each buttom, but buttons have not respond to selector. Can you help me?
- (void)viewDidLoad
{
[super viewDidLoad];
[self.navigationItem setTitle:@"Title"];
// create custom view
container = [[UIView alloc] init];
[container setUserInteractionEnabled:TRUE];
NSString *path;
// create 2 buttons and put in a custom view
buttonList = [[UIButton alloc] init];
path = [[NSBundle mainBundle] pathForResource:@"dotActive" ofType:@"png"];
UIImage *imgList = [[[UIImage alloc] initWithContentsOfFile:path] autorelease];
path = [[NSBundle mainBundle] pathForResource:@"dotInactive" ofType:@"png"];
UIImage *imgListPrs = [[[UIImage alloc] initWithContentsOfFile:path] autorelease];
[buttonList setImage:imgListPrs forState:UIControlStateSelected];
[buttonList setSelected:TRUE];
[buttonList setFrame:CGRectMake(-30, 0, imgList.size.width, imgList.size.height)];
[buttonList setImage:imgList for开发者_如何学运维State:UIControlStateNormal];
[container addSubview:buttonList];
[buttonList addTarget:self action:@selector(changeType:) forControlEvents:UIControlEventTouchUpInside];
[buttonList setUserInteractionEnabled:TRUE];
buttonPic = [[UIButton alloc] init];
path = [[NSBundle mainBundle] pathForResource:@"dotActive" ofType:@"png"];
UIImage *imgPic = [[[UIImage alloc] initWithContentsOfFile:path] autorelease];
path = [[NSBundle mainBundle] pathForResource:@"dotInactive" ofType:@"png"];
UIImage *imgPicPrs = [[[UIImage alloc] initWithContentsOfFile:path] autorelease];
[buttonPic setImage:imgPicPrs forState:UIControlStateSelected];
[buttonPic setFrame:CGRectMake(-10, 0, imgPic.size.width, imgPic.size.height)];
[buttonPic setImage:imgPic forState:UIControlStateNormal];
[container addSubview:buttonPic];
[buttonPic addTarget:self action:@selector(changeType:) forControlEvents:UIControlEventTouchUpInside];
[buttonPic setUserInteractionEnabled:TRUE];
// create UIBarButtonItem with a custom view
UIBarButtonItem *item = [[UIBarButtonItem alloc] initWithCustomView:container];
// put item on navigation bar
[self.navigationItem setRightBarButtonItem:item];
}
Sorry Sveta,
I didn't see your complete code.Check this out.It will work for you.
- (void)viewDidLoad{
[super viewDidLoad];
[self.navigationItem setTitle:@"Title"];
// create custom view
UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 250, 30)];
[container setUserInteractionEnabled:TRUE];
// create 2 buttons and put in a custom view
UIButton *buttonList = [[UIButton alloc] init];
[buttonList setSelected:TRUE];
[buttonList setBackgroundColor:[UIColor redColor]];
[buttonList setFrame:CGRectMake(0, 0, 30.0, 30.0)];
[container addSubview:buttonList];
[buttonList addTarget:self action:@selector(changeType:) forControlEvents:UIControlEventTouchUpInside];
[buttonList setUserInteractionEnabled:TRUE];
[buttonList release];
UIButton *buttonPic = [[UIButton alloc] init];
[buttonPic setFrame:CGRectMake(40.0, 0, 30.0, 30.0)];
[buttonPic setBackgroundColor:[UIColor blueColor]];
[container addSubview:buttonPic];
[buttonPic addTarget:self action:@selector(changeType:) forControlEvents:UIControlEventTouchUpInside];
[buttonPic setUserInteractionEnabled:TRUE];
[buttonPic release];
// create UIBarButtonItem with a custom view
UIBarButtonItem *item = [[UIBarButtonItem alloc] initWithCustomView:container];
// put item on navigation bar
[self.navigationItem setRightBarButtonItem:item];
}
- (void)changeType:(id)sender
{
NSLog(@"Change Type");
}
In Appdelegate add this code
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:self.viewController];
self.window.rootViewController = navController;
[self.window makeKeyAndVisible];
[navController release];
return YES;
}
I never did it programmatically.
Could you post your changeType?
It might looks like
-(void)changeType:(id)sender {
// doing something here
}
and should be declared in the interface section;
Also you could put a breakpoint on it to see if it called at all. And see the value of the variables. Please check if it called.
EDIT:
Below my code that you can insert into defaultly created Navigation-Based Application:
at RootViewController.m:
- (void)viewDidLoad
{
[super viewDidLoad];
UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeInfoLight];
[infoButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *tmpInfoButton = [[UIBarButtonItem alloc] initWithCustomView:infoButton];
self.navigationItem.rightBarButtonItem = tmpInfoButton;
[tmpInfoButton release];
}
-(void)buttonPressed:(id)sender {
NSLog(@"Button pressed...");
}
at RootViewController.h:
-(void)buttonPressed:(id)sender;
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