instruments

问题 Thanks firstly for taking the time to read and hopefully offer some incite into my issue. At the moment, I'm quite simply trying automate logging in and logging out of an app that my company is making using Instruments. I ran into a few small issues (as you can see with the password entry, I roll char by char instead of using string because of a strange typing issue). The issue is that when I get the alert pop up to the screen I wish to tap the Logout button. However, it seems that I never

问题 I'm currently working on a game I started a while ago. Progress was good and everything runs smoothly, but I decided to try using XCode Instruments to check for any leaks in my code. I am using ARC and new objects are only added when others are deleted (part of my game's inner-workings), but the total memory size keeps growing as it runs. My game is completely procedurally generated and requires no assets, it also only uses a couple polygons mapped only with colors, so there are no textures.

问题 I have run my app with instrument and i m getting a memory leak but i dont know at which point that memory leak is happening. How will i know at which point memory is leaking. 回答1: It says responsible library is quartzcore, and it is only 16 bytes. As long as it is not in the app and the OS is causing the same, you cant do much about this. I would recommend you to ignore this. If you are facing issues, check the allocation tool -> Live bytes section and check if memory is shooting up when you

问题 Hello I am pretty new to iphone development. I have run my app for the first time using the "Leaks" from "Instruments". It shows me several leaks around 20 the smallest is 32 bytes and there is one with 1KB. I have followed the memory management guidelines, (i (think i) understand how and when to use release, not to use it when adding to autorelease pools, for every copy, retain, init there should be a release,... etc). I don't think I understand the output of the Leaks in instruments. What

问题 I am creating an iPhone app. Running into memory issues I started using Instruments to track down any memory problems. Am running into some strange behavior that leads me to believe that I am either mis-using Instruments or mis-reading its data. These are the LiveBytes values recorded when moving in and out of a location: **Expensive Location-** World (12 MB) Loc (27 MB) World (13 MB ) Loc (28 MB) World (14 MB) -Crash **Cheap Location-** World (12 MB) Loc (23 MB) World (13 MB ) Loc (24 MB)

问题 I am attempting to analyze an iPhone application using the Leaks application and everything appears to be working fine, except for when I try to view detailed information about a particular memory leak. Leaks does not appear to be loading my source code. Looking at the stack view on the right, I can see calls that reference iPhone frameworks, but anything that is referencing source code that I've written is empty. The screenshot below illustrates my point. The blocks that are light blue

问题 Any good tutorials on finding root cause of memory leaks? I've already got the basics of how to run the leaks aspect of Instruments, and I've read the doco, however I've got leaks with the NSDate object and it seems Instruments points at where the leaky object originally came from, so the actual memory leak could be somewhere else in the chain of events in terms of how the object was used. Would be keen to know of any good fault finding techniques for the non-obvious memory leaks like this?

问题 I am kind of new at ios development and my app crashes because of EXEC_BAD_ACCESS. To detect problem i enabled Zombies and trace Allocations by using Instruments in xCode 4.5 After it detects Zombie Messaged i am having trouble to find which part of code crashes. Here is the instruments screen shot: Thanks for any help. 回答1: I also have the problem at the beginning of learning Instruments, then I figured out the I have to open the 'Extended detail' Pane to see it.(There might other easy way

问题 I need to get battery consumption details for my app. I have used instruments for tracking and i am getting energy usage level as 1/20. What is this 1/20? 回答1: Shortly : UIDevice *Device = [UIDevice currentDevice]; [Device setBatteryMonitoringEnabled:YES]; int state = [Device batteryState]; NSLog(@"Now the status: %d",state); double batLeft = (float)[Device batteryLevel] * 100; NSLog(@"Charge left: %ld", batLeft); The API allows you to register to receive notifications for changes to the

问题 I am using the three20 library (not sure if this is the cause) and am getting a leak when going back and forth between two views of a navigation controller. More details of one of the leaks: The only think I can think of is that I show the toolbar when it pushes the second view onto the stack: /** * View is going to appear * * @version $Revision: 0.1 */ - (void) viewWillAppear:(BOOL)animated { [self.navigationController setToolbarHidden:NO animated:animated]; [super viewWillAppear:animated];