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POProblems with building a multiCanvas
 

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  1. POProblems with building a multiCanvas
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    <p>I'm trying to make a multiCanvas and everything seems right since xcode has not given me any errors. However, my build crashes, and I can't seem to find what the problem is. Can someone please review my code and see if there is something missing? If there is a problem how could I fix it?</p> <p>I've basically been following the tutorial on the c4 website.</p> <p>BUT here is my code: </p> <pre><code> // // C4WorkSpace.m // Mudascode // // Created by Mudassir Iqbal on 2013-10-06. //`enter code here` #import "C4Workspace.h" #import "WorkSpaceBViewController.h" @implementation C4WorkSpace { // placing the images created into the canvas // i_button = insulin button, display = ipad icon, reset = reset button C4Image * i_button; C4Image * display; C4Image * reset; //variables used to define the location of buttons // img_placement = location of the images, text_placement = location of the text CGPoint img_placement; CGPoint text_placement; //labels to make madditional information visible and make app ui frindly C4Label * status; C`enter code here`4Label * condition; // status = number output, condition = high, good, low C4Font * font_use; // font_use = font type C4Timer * timer;// timer = timer to tell you that you forgot to take insulin //lets start with adding an int to represent the sugar level // CHANGE THIS RANGE.. I dunno what's the highest possible insulin range is //figured it out!!! int insulinNumber; // this is the text that you input...will be parsed to int NSString * insulinValue; } //creating a variable for the new subclass WorkSpaceBViewController * workSpaceB; C4View * currentView; -(void)setup { [self inputInsulinValue]; [self imageCreate];// creates interface [self statusUpdate];// the condition in numbers [self conditionUpdate];// the condition of sugar //addding the tap gesture so that the button will work [i_button addGesture:TAP name:@"tap" action:@"tapped:"]; [self listenFor:@"tapped:" fromObject:i_button andRunMethod:@"insulinNumber"];// tap on button [reset addGesture:TAP name:@"tap" action:@"tapped:"]; [self listenFor:@"tapped:" fromObject:reset andRunMethod:@"inputInsulinValue"];// tap on button [self createWorkSpaces]; } //******************************************** // updates the number of the screen -(void) statusUpdate { font_use = [C4Font fontWithName:@"futura" size:35.0f]; // sets a font NSString * ins = [NSString stringWithFormat:@"%d", insulinNumber]; status = [C4Label labelWithText:ins font: font_use]; // sets a number on screen status.textAlignment = ALIGNTEXTCENTER; // aligns label [status setCenter:CGPointMake(226, 428)]; // sets label in center [status sizeToFit]; status.textColor = [UIColor colorWithRed: 0.85f // uses magenta text color green:0.22f blue:0.31f alpha:1.0f]; [self.canvas addSubview:status]; // add to screen } //******************************----************ // updates the phrase (high, good, low) on screen -(void) conditionUpdate { font_use = [C4Font fontWithName:@"futura" size:21.0f]; condition = [C4Label labelWithText:@"Calculating..." font: font_use]; condition.textAlignment = ALIGNTEXTCENTER; [condition setCenter:CGPointMake(250, 582)]; [condition sizeToFit]; condition.textColor = [UIColor colorWithRed: 0.85f green:0.22f blue:0.31f alpha:1.0f]; [self.canvas addSubview:condition]; } // text input box //******************************************* -(void)inputInsulinValue { UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"Recorder" message:@"Please enter your glucose level:" delegate:self cancelButtonTitle:nil otherButtonTitles:@"Enter", nil]; alert.alertViewStyle = UIAlertViewStylePlainTextInput; UITextField * alertTextField = [alert textFieldAtIndex:0]; alertTextField.keyboardType = UIKeyboardTypeNumberPad; alertTextField.placeholder = @" enter glucose level"; [alert show]; } //******************************************** // runs automatically after pressing enter... updates the numbers in variables - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { insulinValue = [[alertView textFieldAtIndex:0] text]; insulinNumber = [insulinValue intValue]; status.text = [NSString stringWithFormat:@"%d", insulinNumber]; [status sizeToFit]; [self condition]; } //*********************************************** // sets up the images -(void) imageCreate { i_button = [C4Image imageNamed:@"i_button.png"]; display = [C4Image imageNamed:@"display.png"]; reset = [C4Image imageNamed:@"reset.png"]; [self.canvas addSubview: i_button]; [self.canvas addSubview: display]; [self.canvas addSubview: reset]; img_placement.x = 320; img_placement.y = 512; display.center = img_placement; img_placement.x += 320; img_placement.y = 400; i_button.center = img_placement; img_placement.y += 300; reset.center = img_placement; display.userInteractionEnabled = NO; } //***************************************************** // if insulin button is pressed, a random number displays and tells you if you're good, high, or low -(void) insulinNumber { //test to see if things are going smoothly // C4Log (@"pokemon"); insulinNumber = [C4Math randomInt:400]; status.text = [NSString stringWithFormat:@"%d", insulinNumber]; [status sizeToFit]; [self condition]; timer = [C4Timer automaticTimerWithInterval:60.0f target:self method:@"update" repeats:YES]; } //***************************************************** // makign a conditions for the insulin levels so that message relates to the -(void) condition { if (insulinNumber &lt;70) condition.text = @"Your blood sugar level is low."; else if (insulinNumber &gt; 70 &amp;&amp; insulinNumber &lt;90) condition.text = @"Your blood sugar level is good."; else condition.text = @"Your blood sugar level is high."; [condition sizeToFit]; //write the rang and change the text to whatever } //***************************************************** -(void)createWorkSpaces { workSpaceB = [[WorkSpaceBViewController alloc] initWithNibName:@"workSpaceB" bundle:[NSBundle mainBundle]]; CGFloat offSet = self.canvas.width * 0.05f; workSpaceB.canvas.frame = CGRectMake(offSet, offSet, self.canvas.width - 2 * offSet, self.canvas.height - 44 - 2 * offSet); [workSpaceB setup]; [self.canvas addSubview:workSpaceB.canvas]; currentView = (C4View *)self.canvas; } //***************************************************** -(void)createToolBar { CGRect toolBarFrame = CGRectMake(0, self.canvas.height - 44, self.canvas.width, 44); UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:toolBarFrame]; toolBar.barStyle = UIBarStyleBlackTranslucent; UIBarButtonItem * flexible; flexible = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]; UIBarButtonItem *b2; b2 = [[UIBarButtonItem alloc] initWithTitle:@"WorkSpace B" style:UIBarButtonItemStyleBordered target:self action:@selector(switchToB)]; [toolBar setItems:@[flexible, b2, flexible]]; [self.canvas addSubview:toolBar]; } //***************************************************** -(void)switchToView:(C4View *)view transitionOptions:(UIViewAnimationOptions)options { if(![currentView isEqual:view]) { [UIView transitionFromView:currentView toView:view duration:0.75f options:options completion:^(BOOL finished) { currentView = view; finished = YES; }]; } } -(void)switchToB { UIViewAnimationOptions options = UIViewAnimationOptionTransitionCurlDown; [self switchToView:(C4View*)workSpaceB.canvas transitionOptions:options]; } //***************************************************** @end </code></pre> <p>when i run this, it crahes and i get this error #import </p> <pre><code>#import "C4AppDelegate.h" int main(int argc, char *argv[]) { @autoreleasepool { return UIApplicationMain(argc, argv, nil, NSStringFromClass([C4AppDelegate class])); } } </code></pre>
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    1. COthe because you're using additional classes we will need to see more than just the code in your `C4WorkSpace.m` can you zip your entire project and post it somewhere that we can download it? GitHub would be ideal for this!
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    2. COJust pinging you to provide code.
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