instruments

问题 Silly question, but.. I am not been able to see the device appearance when running the iPhone simulator. I don't remember after which XCode update this started but the iPhone simulator shows only as a simple window without showing the device case like it used to be (see this image). That's how my simulator looks like: Is there a way to make it look like an actual iPhone 5? EDIT: Unfortunately in my hardware->device options I see only iPhone retina (which is currently selected), but there are

问题 I have all my code signing entitlements set correctly. Running the app on my phone is fine, but launching it in instruments gives me an error message: Error Starting Recording At least one target failed to launch; aborting run And then: Target failed to run. Permisson to debug [app name] was denied. The app must be signed with a development identity (i.e. iOS Developer) Any ideas how I could stop this from happening? Doesn't happen on my iPad. 回答1: Edit the scheme for your target and under

问题 I'm using Instument's ObjectAlloc tool in an attempt to understand what the memory my application (iPhone) is doing and when and where it is doing it. I would really like a basic explanation of these statistics: Live Bytes Living Transitory Overall Bytes When I am trying to work out how much memory my application is using, am I to look at Live Bytes or Overall Bytes? Does this include leaked memory? What are Transitory objects? Thanks 回答1: ObjectAlloc tracks all memory allocation and

问题 I'm working on an app and have 1 leak left. The leaked object is NSAutoreleasePool, size is 32 bytes. In the stacktrace only foundation methods are called. I have no clue how to resolve this. In simulator no leaks reported, on the device only this leak. Any idea's? The autoreleasepool is one I define myself. In my viewcontroller I call: [self performSelectorInBackground:@selector(getDetailInfo:) withObject:self.infoID]; This is getDetailInfo: - (void)getDetailInfo:(NSString *)theID {

问题 I'm working on an app and have 1 leak left. The leaked object is NSAutoreleasePool, size is 32 bytes. In the stacktrace only foundation methods are called. I have no clue how to resolve this. In simulator no leaks reported, on the device only this leak. Any idea's? The autoreleasepool is one I define myself. In my viewcontroller I call: [self performSelectorInBackground:@selector(getDetailInfo:) withObject:self.infoID]; This is getDetailInfo: - (void)getDetailInfo:(NSString *)theID {

问题 I am facing some strange memory leak in our existing iPad application, Here is a function which gives memory leak in instrument -(NSString *)retriveInfo:(NSString*)fromstring:(NSString*)searchstring { NSArray *arrRetrive = [fromstring componentsSeparatedByString:searchstring]; if([arrRetrive count]!=0){ if ([arrRetrive count]!=1){ NSString *strDisplayOrder = [arrRetrive objectAtIndex:1]; arrRetrive = [strDisplayOrder componentsSeparatedByString:@"<"]; //MEMORY LEAK } } return [arrRetrive

问题 I have a very strange, very repeatable leak that doesn't appear to have anything to do with the functions I have defined. As you can see the responsible library is lybsystem_c. Instruments reports a 48B leak when I scroll my grouped table view down below the screen (by dragging very fast). It bounces back, and the red bar appears. Has anyone experienced this issue? Does anyone understand how I might be responsible for this? Is there a way to prove this is a framework bug? Or an Instruments

问题 I am having an issue with CPU usage. When I starts my app its animation starts at good speed and all of sudden animation speed gets lower down and then app gets crashed. But when I checked the app with Activity Monitor(Instrument) my app use CPU near about 80%-90%. I am unable reduce the CPU usage. CODE: -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { CGPoint location; UITouch *touch = [[event allTouches] anyObject]; location = [touch locationInView:self.view]; } -(void

问题 I have one small project which I want to test with travis (just to have that green batch on Github) which is https://github.com/SocialbitGmbH/SwiftAddressBook . It requires access to ABAddressbook which can only be given by dismissing an alert when asking for access. So I´m trying to run an UI Automation script to achieve this, which succeeds locally but fails on the remote server with the message Instruments Usage Error : Specified target process is invalid: Example/DerivedData

问题 I am trying to convert below dtrace script to custom instrument. How should we configure the END probe to show the output the aggregated output. pid$target:myApp:main:entry/((pid == $target))/{ starttime = timestamp; } objc$target:myApp*::entry/((pid == $target))/{ starttimeformethod[probemod,probefunc] = timestamp; methodhasenteredatleastonce[probemod,probefunc] = 1; } objc$target:myApp*::return/((( /*XRAYPREDICATELHS*/(methodhasenteredatleastonce[probemod,probefunc] == 1/*XRAYPREDICATERHS*/