【发布时间】：2011-01-09 18:29:17
【问题描述】：
我是新手，需要一些关于在模拟器上运行的 iPhone 应用程序的帮助。该应用程序在 Build & Run 或 Build & Run - breakpoints off 的情况下运行良好，但在 Build & Debug - Breakpoints on 的情况下运行时会崩溃。任何帮助或想法将不胜感激。朗
细节：没有设置断点，永远不会得到任何可见的模拟器结果，在初始化阶段似乎会在它可以生成任何输出之前爆炸。应用程序的来源是Dan & Tracey Pilone 的“Head First iPhone development”一书中的 DrinkMixer 示例（示例建立到第 280 页）。
出现此错误消息：
Attaching to process 970.
Pending breakpoint 1 - "*0x01c1b001" resolved
Program received signal: “EXC_BAD_ACCESS”.
No memory available to program now: unsafe to call malloc
Data Formatters temporarily unavailable, will re-try after a 'continue'. (Not safe to call dlopen at this time.)
No memory available to program now: unsafe to call malloc
---
Leaks:
The only object noted as "leaked Object" is:
Leaked Object # Address Size Responsible Library Responsible Frame
Malloc 128 Bytes <blank> 0x3c11950 128Bytes CoreGraphics open_handle_to_dylib_path
___
Object Allocations shows (Highest at top = CFString):
Category --- Overall Bytes -- #Overall -- Live Bytes -- #Living
* All Allocations * 497kb #5888 496kb #5878 10
CFString 42kb #1126 42kb
Malloc 32.00 KB 32kb #1 32kb
Malloc 1.00 KB 29kb #29 29kb
Malloc 8.00 KB 24kb #3 24kb
Malloc 32 Bytes 20.81kb #666 20.75kb
Malloc 1.50 KB 19.5kb #13 19.5kb
CFDictionary (key-store) 17.64kb #159 17.64kb
(note: Except for "All Allocations, the #Living is the same as #Overall)
---
List of Calls from Debugger:
#0 0x01c1b010 in CFStringCreateByCombiningStrings
#1 0x023a0779 in LoadFontPathCache
#2 0x023a096b in Initialize
#3 0x023a0f3e in GSFontCreateWithName
#4 0x003d4575 in +[UIFont boldSystemFontOfSize:]
#5 0x002cddaa in +[UINavigationButton defaultFont]
#6 0x002d9e37 in -[UINavigationButton initWithValue:width:style:barStyle:possibleTitles:tintColor:]
#7 0x002cdc75 in -[UINavigationButton initWithImage:width:style:]
#8 0x00468eeb in -[UIBarButtonItem(Static) createViewForNavigationItem:]
#9 0x002d1b56 in -[UINavigationItem customRightView]
#10 0x002d20e3 in -[UINavigationItem updateNavigationBarButtonsAnimated:]
#11 0x002d1e1a in -[UINavigationItem setRightBarButtonItem:]
#12 0x00002e7b in -[RootViewController viewDidLoad] at RootViewController.m:41
#13 0x00313796 in -[UIViewController view]
#14 0x00311d92 in -[UIViewController contentScrollView]
#15 0x0031c2b4 in -[UINavigationController _computeAndApplyScrollContentInsetDeltaForViewController:]
#16 0x0031b32e in -[UINavigationController _layoutViewController:]
#17 0x0031cd1a in -[UINavigationController _startTransition:fromViewController:toViewController:]
#18 0x0031831a in -[UINavigationController _startDeferredTransitionIfNeeded]
#19 0x004362e4 in -[UILayoutContainerView layoutSubviews]
#20 0x035342b0 in -[CALayer layoutSublayers]
#21 0x0353406f in CALayerLayoutIfNeeded
#22 0x035338c6 in CA::Context::commit_transaction
#23 0x0353353a in CA::Transaction::commit
#24 0x00295ef9 in -[UIApplication _reportAppLaunchFinished]
#25 0x0029bb88 in -[UIApplication handleEvent:withNewEvent:]
#26 0x002976d3 in -[UIApplication sendEvent:]
#27 0x0029e0b5 in _UIApplicationHandleEvent
#28 0x023a3ed1 in PurpleEventCallback
#29 0x01bb6b80 in CFRunLoopRunSpecific
#30 0x01bb5c48 in CFRunLoopRunInMode
#31 0x00295e69 in -[UIApplication _run]
#32 0x0029f003 in UIApplicationMain
#33 0x00002ba0 in main at main.m:14
代码，包括第 41 行（如下所示）如下。并感谢格式化帮助和评论：
#import "RootViewController.h"
#import "DrinkDetailViewController.h";
#import "DrinkConstants.h"
#import "AddDrinkViewController.h"
@implementation RootViewController
@synthesize drinks, addButtonItem;
- (void)viewDidLoad {
[super viewDidLoad];
// add PATH for PLIST
NSString *path = [[NSBundle mainBundle] pathForResource:
@"DrinkDirections" ofType:@"plist"];
NSMutableArray *tmpArray = [[NSMutableArray alloc] initWithContentsOfFile:path];
self.drinks = tmpArray;
[tmpArray release];
// Next is Line #41 - I removed earlier empty lines & Comments
self.navigationItem.rightBarButtonItem = self.addButtonItem;
}
- (IBAction) addButtonPressed: (id) sender {
NSLog(@"Add button pressed!");
【问题讨论】：
-
那么你在 RootViewController.m 的第 41 行周围做什么？显示一些代码。
标签： iphone debugging memory simulator