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Report From: Delphi-BCB/FireMonkey/Runtime    [ Add a report in this area ]  
Report #:  105883   Status: Closed
[iOS] Memory Leak in TCanvasCocoa.FillText and TCanvasCocoa.MeasureText
Project:  Delphi Build #:  Update4 Hotfix1
Version:    16.4 Submitted By:   Xavier Dufaure de Citres
Report Type:  Crash / Data loss / Total failure Date Reported:  5/24/2012 5:53:30 PM
Severity:    Critical / Show Stopper Last Updated: 4/23/2013 8:13:54 AM
Platform:    Apple mobile OS Internal Tracking #:   28500
Resolution: Fixed (Resolution Comments) Resolved in Build: : XE4
Duplicate of:  None
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Description
[iOS]
The calls to TCanvasCocoa.FillText and TCanvasCocoa.MeasureText generate a memory Leak each time they are called (note that TText calls these).

If ran long enough memory will fill and the application will crash.
Steps to Reproduce:
Create a project with a background image and a few TText. On a Timer change the text.

Run the project under Profile, using the" memory leak" or "Allocations" instrumentation and observe leaks (TFont, CFString, Path etc..)
Workarounds
Modify FMX_Canvas_ios.pas
at the end of the functions add

  CFRelease(path);
  CFRelease(fontref);
  CFRelease(paragraphStyle);
  CFRelease(str);
Attachment
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Comments

Tomohiro Takahashi at 5/25/2012 12:46:02 AM -
This report was opened with valid Internal Tracking Number.
Thanks.

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