i'm receiving memory leaks when using this code on device with
instruments. the code seems fine to me so i don't understand the
leaks. leaking objects are GSEvent and GeneralBlock-16. you can
download my small sample project i've created using the above code at
this address: http://tinyurl.com/yg8nh5s
On Tue, Dec 8, 2009 at 7:04 PM, Chunk 1978 <chunk1...@gmail.com> wrote:
> i'm very grateful for your help. thanks so much for posting such a
> complete solution. i'm certain there will be others like myself who
> will find your code extremely helpful. thanks again.
>
> On Tue, Dec 8, 2009 at 5:24 PM, mmalc Crawford <mmalc_li...@me.com> wrote:
>>
>> On Dec 8, 2009, at 12:33 pm, mmalc Crawford wrote:
>> Get the logic right...
>>
>>> - (void)setUpTouchHandling {
>>>
>>> touchToLabelMapping = CFDictionaryCreateMutable (kCFAllocatorDefault, 5,
>>> &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
>>> availableLabels = [[NSMutableArray alloc] initWithObjects:touchLabel1,
>>> touchLabel2, touchLabel3, touchLabel4, touchLabel5, nil];
>>> }
>>>
>> - (void)setUpTouchHandling {
>>
>> touchToLabelMapping = CFDictionaryCreateMutable (kCFAllocatorDefault, 5,
>> &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
>> availableLabels = [[NSMutableArray alloc] initWithObjects:touchLabel1,
>> touchLabel2, touchLabel3, touchLabel4, touchLabel5, nil];
>> setUp = YES;
>> }
>>
>>
>> ... and improve the user experience accordingly:
>>
>>> - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
>>>
>>> for (UITouch *touch in touches) {
>>> if (touch.view == self) {
>>> UILabel *label = (UILabel
>>> *)CFDictionaryGetValue(touchToLabelMapping, touch);
>>> label.text = @"{0, 0}";
>>> CFDictionaryRemoveValue (touchToLabelMapping, touch);
>>> [availableLabels addObject:label];
>>> }
>>> }
>>> }
>>>
>> - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
>>
>> for (UITouch *touch in touches) {
>> if (touch.view == self) {
>>
>> UILabel *label = (UILabel
>> *)CFDictionaryGetValue(touchToLabelMapping, touch);
>> label.text = @"{0, 0}";
>> CFDictionaryRemoveValue (touchToLabelMapping, touch);
>> [availableLabels insertObject:label atIndex:0];
>> }
>> }
>> }
>>
>>
>> (I'm using setUpTouchHandling so that this will work however you configure
>> your view or view controller -- ideally you choose a more appropriate
>> initialisation locus.)
>>
>> mmalc
>>
>>
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>>
>
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