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POCall a method from another class when shake is detected
 

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    <p>HERE IS THE CODE: <a href="http://min.us/mWdMO0n14" rel="nofollow">http://min.us/mWdMO0n14</a></p> <p>I'm a Obj C newbie, so I've searched quite a bit, but haven't found anything that can solve my problem.</p> <p>I have CalculatorViewController.h and .m and then CalculatorBrain.h and.m (Stanford Lectures)</p> <p>in CalculatorBrain.m, I have the following method, with all of the variables defined as private in the CalculatorBrain header.</p> <pre><code>- (void)clearEverythingOnShakeGesture{ operand = 0; waitingOperation = @""; waitingOperand = 0; } </code></pre> <p>Then in CalculatorBrain.m , I have everything set up to detect shakes, as follows. I've included some of the code above the shake detection just so you have a general idea.</p> <pre><code>@interface CalculatorViewController() @property(nonatomic, retain) CalculatorBrain *brain; @end @implementation CalculatorViewController @synthesize brain; - (CalculatorBrain *)brain { if (!brain) { brain = [[CalculatorBrain alloc] init]; } return brain; } -(BOOL)canBecomeFirstResponder{ return YES; } -(void)viewDidAppear: (BOOL) animated{ [super viewDidAppear:animated]; [self becomeFirstResponder]; } - (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event { if (event.subtype == UIEventSubtypeMotionShake) { NSLog(@"SHAKE IT!"); [brain clearEverythingOnShakeGesture]; //********** not sure how to call this. } } </code></pre> <p>I'm not sure how to call <code>[brain clearEverythingOnShakeGesture];</code> , because I get the error "Class method +clearEverythingOnShakeGesture not found, defaults to return type id". However, if I make it a class method, the variables inside are instance variables, which provides another error. Any help greatly appreciated.</p>
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    1. USAlex
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    1. COTwo suggestions: 1. make the method static. 2. use [self.brain clearEverythingOnShakeGesture].
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      1. USDavid
    2. CODid you try [self.brain clearEverythingOnShakeGesture]; ? To eliminate any ambiguity about what "brain" is I would synthesize it this way: @synthesize brain = _brain; .
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      1. USStephenAshley.developer
 

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