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PODeallocated instance | "Malloc_history cannot examine process XYZ because the process does not exist."
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  1. PODeallocated instance | "Malloc_history cannot examine process XYZ because the process does not exist."
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    copied!<p>I have memory problem (yes ;) I am new to iOS) with the following method in a custom UIView:</p> <p>Header file</p> <pre><code>.... @property (nonatomic, retain) NSString * pressureTextLabel; .... </code></pre> <p>Implementation draws a circle and a label with the pressure associated to the touch. Every finger touch creates a object of this view:</p> <pre><code>- (void)drawRect:(CGRect)theRect{ CGRect rect = self.bounds; CGRect ringRect = CGRectInset(rect, 100, 100); // Outer ring. UIBezierPath *path = [UIBezierPath bezierPathWithOvalInRect:ringRect]; ringRect = CGRectInset(rect, 60, 60); [path appendPath:[UIBezierPath bezierPathWithOvalInRect:ringRect]]; path.usesEvenOddFillRule = YES; [self.color set]; [path fill]; //text label rect = CGRectMake(100, 20, 100, 100); //This one seems to be the troublemaker [pressureTextLabel drawInRect:rect withFont:[UIFont systemFontOfSize:14.0]]; } </code></pre> <p>all works fine as long as this following method is not called by the controller to update the sensed pressure for this particular touch.</p> <pre><code>-(void) setTouchPressureTo: (float) pressure{ pressureTextLabel = [NSString stringWithFormat:@"%f", pressure]; [self setNeedsDisplay]; } </code></pre> <p>I get the following error:</p> <pre><code>*** -[CFString drawInRect:withFont:]: message sent to deallocated instance 0x16e8c0 </code></pre> <p>which made me investigate the memory trace in the debug console once the application crashed: <code>shell malloc_history &lt;PID&gt; 0x17dfb0</code> . As result the console returns:</p> <p><code>malloc_history cannot examine process 5838 because the process does not</code> exist.</p> <p><strong>So here the question:</strong></p> <ol> <li>Can someone see the obvious retain, release problem here? </li> <li>How can I get <code>malloc_history &lt;PID&gt; &lt;Address</code>> working?</li> </ol> <p>Thank you for your time, redirects and answers!</p> <p>Christian </p>
 

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