dutran90

#pragma mark - UIPickerView Datasource
- (int)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
    return 1;
}
- (int)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
    return _clubNameArray.count;
}
- (NSString*)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
    return _clubNameArray[row];
}

dutran90

// Show actionsheet
        NSString *actionSheetTitle = @"Add Photo"; //Action Sheet Title
        NSString *other1 = @"Take Photo";
        NSString *other2 = @"Choose from Gallery";
        NSString *cancelTitle = @"Cancel";
        
        UIActionSheet *actionSheet = [[UIActionSheet alloc]
                                      initWithTitle:actionSheetTitle
                                      delegate:self
                                      cancelButtonTitle:cancelTitle

dutran90

#import <UIKit/UIKit.h>

@interface MyTextField : UITextField
{
    BOOL isEnablePadding;
    float paddingLeft;
    float paddingRight;
    float paddingTop;
    float paddingBottom;
}

dutran90

//ViewDidLoad
[[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillShow:)
                                                 name:UIKeyboardWillShowNotification
                                               object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillHide:)
                                                 name:UIKeyboardWillHideNotification
                                               object:nil];
                                               

dutran90

// Width constraint, half of parent view width
    [self.view addConstraint:[NSLayoutConstraint constraintWithItem:centerView
                                                          attribute:NSLayoutAttributeWidth
                                                          relatedBy:NSLayoutRelationEqual
                                                             toItem:self.view
                                                          attribute:NSLayoutAttributeWidth
                                                         multiplier:0.5
                                                           constant:0]];

    // Height constraint, half of parent view height

dutran90

// SINGLETON PATTERN
-->.h:
  + (instancetype)sharedInstance;
-->.m:
  + (instancetype)sharedInstance
{
    static MyClass *sharedInstance = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        sharedInstance = [[MyClass alloc] init];

dutran90

#pragma mark - Process data
- (CGFloat) calculateWidthItem{
    return ([[UIScreen mainScreen]bounds].size.width -16 - 4*10)/2;
}

- (CGFloat) calculateHeightItem{
    return (([[UIScreen mainScreen]bounds].size.width -16 - 4*10)/2)*1.5;
}
--> widthItem = [self calculateWidthItem];
    heightItem = [self calculateHeightItem];

dutran90

// BASIC
MBProgressHUD *hud;
hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
hud.mode = MBProgressHUDModeIndeterminate;
hud.labelText = @"loading...";
[hud show:YES];

--> [hud hide:YES];

dutran90

// Call ViewController with UINavigationController
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    
    MainVC *vcMain = [[MainVC alloc] initWithNibName:@"MainVC" bundle:nil];
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:vcMain];
    self.window.rootViewController = nav;
    nav.navigationBarHidden = YES;
    
    return YES;

dutran90

//GET
+(void) checkLoginWithUsername:(NSString*)username andPassword:(NSString*)password InBackground:(void(^)(BOOL success)) completionHandler{
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    NSDictionary *para = [NSDictionary dictionaryWithObjectsAndKeys:username, @"email", password, @"password", nil];
    [manager setRequestSerializer:[AFHTTPRequestSerializer serializer]];
    [manager.requestSerializer setAuthorizationHeaderFieldWithUsername:@"admin" password:@"admin"];
    manager.responseSerializer.acceptableContentTypes = [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"];
    [manager GET:@"http://lottofy.gleblu.com/ws/login.php" parameters:para success:^(AFHTTPRequestOperation *operation, id responseObject) {
        if ([[responseObject objectForKey:@"success"] doubleValue] == 0) {
            completionHandler(NO);