2014-03-03 14 views
0

的循環填充NSMutableArray中崩潰時我新的目標C所以這段代碼可能是不寫那麼好。應用從NSMutableStrings

當應用程序啓動時,它調用下面的代碼,如果它沒有被保存到手機呢。當它開始在while循環中循環時,應用程序在任何手機上崩潰,而不是iphone 5s。我認爲這是由於內存使用。我相信在while循環中,當創建NSMutableString(movieTitle)時,就是內存尖峯所在。我還應該補充一點,循環迭代的次數約爲6000次。

基本上,html代碼是從一個URL生成的,並根據網站上的html如何編寫來處理它以查找電影和節目。它抓取所有電影名稱和顯示名稱,以便我可以使用它們進行自動完成。

if (appDelegate.movieArray.count == 0 && [self detectWifi]) { 

    appDelegate.movieArray = [[NSMutableArray alloc]init]; 

    NSString *showUrlString = [NSString stringWithFormat:@"http://http:www.website1.com"]; 
    NSURL *ShowURL = [NSURL URLWithString:showUrlString]; 
    NSError *showerror; 
    NSString *showPage = [NSString stringWithContentsOfURL:ShowURL 
                encoding:NSASCIIStringEncoding 
                error:&showerror]; 


    NSString *movieUrlString = [NSString stringWithFormat:@"http://www.website2.com"]; 
    NSURL *MovieURL = [NSURL URLWithString:movieUrlString]; 
    NSError *movieerror; 
    NSString *moviePage = [NSString stringWithContentsOfURL:MovieURL 
                encoding:NSASCIIStringEncoding 
                 error:&movieerror]; 

    showPage = [showPage substringFromIndex:[showPage rangeOfString:@"</a><span class=\"mw-editsection-bracket\">]</span></span></h2>"].location]; 
    showPage = [showPage substringToIndex:[showPage rangeOfString:@"NewPP limit report"].location]; 

    //Gets all movies 
    moviePage = [moviePage substringFromIndex:[moviePage rangeOfString:@"</a><span class=\"mw-editsection-bracket\">]</span></span></h2>"].location]; 
    moviePage = [moviePage substringToIndex:[moviePage rangeOfString:@"<h2><span class=\"mw-headline\" id=\"Notes\">Notes</span>"].location]; 
    moviePage = [moviePage stringByAppendingString:showPage]; 
    int counter = 0; 

    while ([moviePage rangeOfString:@"<li><i><a href=\""].location != NSNotFound) { 

     @autoreleasepool{ 
      moviePage = [moviePage substringFromIndex:[moviePage rangeOfString:@"<li><i><a href=\""].location + 16]; 
      moviePage = [moviePage substringFromIndex:[moviePage rangeOfString:@">"].location + 1]; 
      NSMutableString *movieTitle = [self getTitle:moviePage]; 
      moviePage = [moviePage substringFromIndex:[moviePage rangeOfString:@"</li>"].location + 4]; 
      if (![appDelegate.movieArray containsObject:movieTitle]) [appDelegate.movieArray addObject:movieTitle]; 

     } 

     counter ++; 
     NSLog(@"%d",counter); 
    } 

    [[NSUserDefaults standardUserDefaults] setObject:appDelegate.movieArray forKey:@"movieArray"]; 
    NSLog(@"%@",appDelegate.movieArray); 


} 

這是我認爲手機從內存尖峯崩潰的部分。

NSMutableString *movieTitle = [self getTitle:moviePage]; 

這裏是你可以看到,我試圖用一個autoreleasepool減少內存使用情況的getTitle

-(NSMutableString*)getTitle:(NSString *)line { 
@autoreleasepool{ 

NSMutableString *movieTitle = [[line substringToIndex:[line rangeOfString:@"</a>"].location]mutableCopy]; 

if ([movieTitle rangeOfString:@", The"].location != NSNotFound) { 
    movieTitle = [[movieTitle substringToIndex:[movieTitle rangeOfString:@", The"].location]mutableCopy]; 
    movieTitle = [[@"The " stringByAppendingString:movieTitle]mutableCopy]; 
} 
if ([movieTitle rangeOfString:@",The"].location != NSNotFound) { 
    movieTitle = [[movieTitle substringToIndex:[movieTitle rangeOfString:@",The"].location]mutableCopy]; 
    movieTitle = [[@"The " stringByAppendingString:movieTitle]mutableCopy]; 
} 

if ([movieTitle rangeOfString:@", A"].location != NSNotFound) { 
    movieTitle = [[movieTitle substringToIndex:[movieTitle rangeOfString:@", A"].location]mutableCopy]; 
    movieTitle = [[@"A " stringByAppendingString:movieTitle]mutableCopy]; 
} 
if ([movieTitle rangeOfString:@" ("].location != NSNotFound) { 
    movieTitle = [[movieTitle substringToIndex:[movieTitle rangeOfString:@" ("].location]mutableCopy]; 
} 
if ([movieTitle rangeOfString:@"&amp;"].location != NSNotFound) { 
    movieTitle = [[movieTitle stringByReplacingOccurrencesOfString:@"&amp;" withString:@"&"]mutableCopy]; 
} 
if ([movieTitle rangeOfString:@"&#039;"].location != NSNotFound) { 
    movieTitle = [[movieTitle stringByReplacingOccurrencesOfString:@"&#039;" withString:@"'"]mutableCopy]; 
} 
    return movieTitle; 
}} 

的功能,但它不是足以崩潰停止應用程序。我想對我來說問題的一部分是我不明白蘋果的內存規則。另外,我使用ARC規則,所以我不能簡單地調用release,autorelease..etc。

另一個奇怪的問題是,除了5S任何iPhone,當它在Xcode調試(插入Mac和具有應用在其上運行),應用程序運行,並不會崩潰。

我能做些什麼,以更有效地使這個代碼,這樣我不使用的內存,這樣的應用程序將在所有設備上工作?

我模擬在iPad 2上的錯誤:

Incident Identifier: F63CD360-E641-400B-932D-31DAD0462785 
CrashReporter Key: 3a33921df83f611ce711881c8d295ed62cc68b55 
Hardware Model:  iPad2,1 
Process:    MovieAlert [28858] 
Path:    /var/mobile/Applications/26822004-FC06-4943-916C-5BBA670E22A2/MovieAlert.app/MovieAlert 
Identifier:   com.netglow.MovieAlert.MovieAlert 
Version:    1.0 (1.0) 
Code Type:   ARM (Native) 
Parent Process:  launchd [1] 

Date/Time:   2014-03-03 12:22:02.873 -0500 
OS Version:   iOS 7.1 (11D5145e) 
Report Version:  104 

Exception Type: 00000020 
Exception Codes: 0x000000008badf00d 
Highlighted Thread: 0 

Application Specific Information: 
com.netglow.MovieAlert.MovieAlert failed to launch in time 

Elapsed total CPU time (seconds): 24.630 (user 24.630, system 0.000), 56% CPU 
Elapsed application CPU time (seconds): 21.145, 48% CPU 

Thread 0: 
0 libsystem_platform.dylib  0x3b6f6490 _platform_memset$VARIANT$CortexA9 + 200 
1 CoreFoundation     0x3032c72e _CFRuntimeCreateInstance + 238 
2 CoreFoundation     0x303d26e8 __CFStringCreateImmutableFunnel3 + 1584 
3 CoreFoundation     0x3034d8a0 CFStringCreateWithSubstring + 324 
4 CoreFoundation     0x3034d734 -[__NSCFString substringWithRange:] + 192 
5 MovieAlert      0x000e4372 -[NGAppDelegate application:didFinishLaunchingWithOptions:] (NGAppDelegate.m:57) 
6 UIKit       0x32e0e392 -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 270 
7 UIKit       0x32e0dce6 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1606 
8 UIKit       0x32e08376 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 710 
9 UIKit       0x32da4564 -[UIApplication handleEvent:withNewEvent:] + 3536 
10 UIKit       0x32da36cc -[UIApplication sendEvent:] + 68 
11 UIKit       0x32e07ab4 _UIApplicationHandleEvent + 612 
12 GraphicsServices    0x353f8aea _PurpleEventCallback + 606 
13 GraphicsServices    0x353f86d2 PurpleEventCallback + 30 
14 CoreFoundation     0x303c8ab4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32 
15 CoreFoundation     0x303c8a4e __CFRunLoopDoSource1 + 342 
16 CoreFoundation     0x303c7222 __CFRunLoopRun + 1394 
17 CoreFoundation     0x30331f4a CFRunLoopRunSpecific + 518 
18 CoreFoundation     0x30331d2e CFRunLoopRunInMode + 102 
19 UIKit       0x32e06cdc -[UIApplication _run] + 756 
20 UIKit       0x32e01f90 UIApplicationMain + 1132 
21 MovieAlert      0x000e2e04 main (main.m:16) 
22 libdyld.dylib     0x3b5dbab4 start + 0 

Thread 1: 
0 libsystem_kernel.dylib   0x3b67e808 kevent64 + 24 
1 libdispatch.dylib    0x3b5c0078 _dispatch_mgr_invoke + 228 
2 libdispatch.dylib    0x3b5bfdfe _dispatch_mgr_thread$VARIANT$mp + 34 

Thread 2 name: com.apple.NSURLConnectionLoader 
Thread 2: 
0 libsystem_kernel.dylib   0x3b67ea58 mach_msg_trap + 20 
1 libsystem_kernel.dylib   0x3b67e854 mach_msg + 44 
2 CoreFoundation     0x303c8896 __CFRunLoopServiceMachPort + 150 
3 CoreFoundation     0x303c6fbc __CFRunLoopRun + 780 
4 CoreFoundation     0x30331f4a CFRunLoopRunSpecific + 518 
5 CoreFoundation     0x30331d2e CFRunLoopRunInMode + 102 
6 Foundation      0x30dcc082 +[NSURLConnection(Loader) _resourceLoadLoop:] + 314 
7 Foundation      0x30e41a5a __NSThread__main__ + 1058 
8 libsystem_pthread.dylib   0x3b6fa916 _pthread_body + 138 
9 libsystem_pthread.dylib   0x3b6fa886 _pthread_start + 98 
10 libsystem_pthread.dylib   0x3b6f8aa0 thread_start + 4 

Thread 3 name: com.apple.CFSocket.private 
Thread 3: 
0 libsystem_kernel.dylib   0x3b691434 __select + 20 
1 CoreFoundation     0x303cc758 __CFSocketManager + 480 
2 libsystem_pthread.dylib   0x3b6fa916 _pthread_body + 138 
3 libsystem_pthread.dylib   0x3b6fa886 _pthread_start + 98 
4 libsystem_pthread.dylib   0x3b6f8aa0 thread_start + 4 

No thread state (register information) available 
Binary Images: 
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0x3a771000 - 0x3a7a2fff libTelephonyUtilDynamic.dylib armv7 <e2d62970e01b373f9b8ad4c4aee0a674> /usr/lib/libTelephonyUtilDynamic.dylib 
0x3a8f1000 - 0x3a8fdfff libbsm.0.dylib armv7 <cbf50b2cb2ae3ff385d5d853551a33cf> /usr/lib/libbsm.0.dylib 
0x3a8fe000 - 0x3a907fff libbz2.1.0.dylib armv7 <3a4d64c44c283997b46efa5712f9c2d1> /usr/lib/libbz2.1.0.dylib 
0x3a908000 - 0x3a953fff libc++.1.dylib armv7 <a9e17626396330e4be0a636d853ecded> /usr/lib/libc++.1.dylib 
0x3a954000 - 0x3a96efff libc++abi.dylib armv7 <dd16288fdf2d35179c1db87dcec17f2c> /usr/lib/libc++abi.dylib 
0x3a97e000 - 0x3a985fff libcupolicy.dylib armv7 <c3a9cab470003636b63fe439f9b577a3> /usr/lib/libcupolicy.dylib 
0x3aade000 - 0x3abcbfff libiconv.2.dylib armv7 <3faa29f3ddf53187b51e155344592e1b> /usr/lib/libiconv.2.dylib 
0x3abcc000 - 0x3ad1dfff libicucore.A.dylib armv7 <a0225e27ea6933558bc3dfecdcf626fc> /usr/lib/libicucore.A.dylib 
0x3ad25000 - 0x3ad25fff liblangid.dylib armv7 <8bb499713b5632adb09d7bb3a7b77a71> /usr/lib/liblangid.dylib 
0x3ad26000 - 0x3ad30fff liblockdown.dylib armv7 <b7f5354d32ee38efbd3d99b1464d837f> /usr/lib/liblockdown.dylib 
0x3b0af000 - 0x3b24efff libobjc.A.dylib armv7 <43454f30280c34cb958f0304384d9770> /usr/lib/libobjc.A.dylib 
0x3b332000 - 0x3b347fff libresolv.9.dylib armv7 <9d15aa14d7773e599e6cee134be9ebd0> /usr/lib/libresolv.9.dylib 
0x3b370000 - 0x3b406fff libsqlite3.dylib armv7 <2bb2ac06753238828be8593055a08773> /usr/lib/libsqlite3.dylib 
0x3b407000 - 0x3b454fff libstdc++.6.dylib armv7 <60d2a9f34296398bb7c057e01fde6afc> /usr/lib/libstdc++.6.dylib 
0x3b455000 - 0x3b47bfff libtidy.A.dylib armv7 <1038b4aac4c9322fb6fc14b57e71ab02> /usr/lib/libtidy.A.dylib 
0x3b47f000 - 0x3b532fff libxml2.2.dylib armv7 <610d9be70005338f9db94dbcaf1b6459> /usr/lib/libxml2.2.dylib 
0x3b533000 - 0x3b554fff libxslt.1.dylib armv7 <c5d2c1db0a203d26a577d6c231b3640d> /usr/lib/libxslt.1.dylib 
0x3b555000 - 0x3b561fff libz.1.dylib armv7 <76b41c58034a30dabe6ad9be1e637644> /usr/lib/libz.1.dylib 
0x3b562000 - 0x3b566fff libcache.dylib armv7 <fefc4161821f300d85fff4af094b206c> /usr/lib/system/libcache.dylib 
0x3b567000 - 0x3b56ffff libcommonCrypto.dylib armv7 <4c0bda8ed1b83b6d97f4fa911f22c83c> /usr/lib/system/libcommonCrypto.dylib 
0x3b570000 - 0x3b574fff libcompiler_rt.dylib armv7 <8f8460474e9d36b4beb26f9851bd794d> /usr/lib/system/libcompiler_rt.dylib 
0x3b575000 - 0x3b57bfff libcopyfile.dylib armv7 <7b5021a1b7d5386791a6d6b7658258f6> /usr/lib/system/libcopyfile.dylib 
0x3b57c000 - 0x3b5b4fff libcorecrypto.dylib armv7 <912e56f196943500877e1aba46efcb78> /usr/lib/system/libcorecrypto.dylib 
0x3b5b5000 - 0x3b5d9fff libdispatch.dylib armv7 <0b20ad8ff5373b85a62742a48cec386f> /usr/lib/system/libdispatch.dylib 
0x3b5da000 - 0x3b5dbfff libdyld.dylib armv7 <5fc05181b5d03156a7a3ade0fc32276e> /usr/lib/system/libdyld.dylib 
0x3b5dc000 - 0x3b5dcfff libkeymgr.dylib armv7 <754fc3f16bc53f01b4df0969a6461a1d> /usr/lib/system/libkeymgr.dylib 
0x3b5dd000 - 0x3b5e3fff liblaunch.dylib armv7 <0c103f8e4aeb3416b54bdacf31fc2df1> /usr/lib/system/liblaunch.dylib 
0x3b5e4000 - 0x3b5e7fff libmacho.dylib armv7 <9033cf6272eb3c789cdc2f426c401ffa> /usr/lib/system/libmacho.dylib 
0x3b5e8000 - 0x3b5e9fff libremovefile.dylib armv7 <d7a3a855738935058cfd64a4429b2883> /usr/lib/system/libremovefile.dylib 
0x3b5ea000 - 0x3b5f7fff libsystem_asl.dylib armv7 <c71706ec46b13bb89d6a9fd882ccc121> /usr/lib/system/libsystem_asl.dylib 
0x3b5f8000 - 0x3b5f8fff libsystem_blocks.dylib armv7 <0178b6f1a9bf362d9672641076a42ee2> /usr/lib/system/libsystem_blocks.dylib 
0x3b5f9000 - 0x3b65afff libsystem_c.dylib armv7 <b9729484ff92300bb601c95c2de24242> /usr/lib/system/libsystem_c.dylib 
0x3b65b000 - 0x3b65dfff libsystem_configuration.dylib armv7 <5a3e13ad6e5b332d943b02ea0e2a6f37> /usr/lib/system/libsystem_configuration.dylib 
0x3b65e000 - 0x3b664fff libsystem_dnssd.dylib armv7 <b4c9e43777c034589916c0e1df780035> /usr/lib/system/libsystem_dnssd.dylib 
0x3b665000 - 0x3b67dfff libsystem_info.dylib armv7 <d9b6d914c95e39b1a788880c65e2c586> /usr/lib/system/libsystem_info.dylib 
0x3b67e000 - 0x3b696fff libsystem_kernel.dylib armv7 <c53ca296071b3266b29ba64f0913c071> /usr/lib/system/libsystem_kernel.dylib 
0x3b697000 - 0x3b6b6fff libsystem_m.dylib armv7 <c667c01b41913e38bc3a97417753a70d> /usr/lib/system/libsystem_m.dylib 
0x3b6b7000 - 0x3b6c8fff libsystem_malloc.dylib armv7 <304862ec02e43c2d980a0852e2eaeda7> /usr/lib/system/libsystem_malloc.dylib 
0x3b6c9000 - 0x3b6e9fff libsystem_network.dylib armv7 <0b4cc1aebe0a3bc7b036bb528107f338> /usr/lib/system/libsystem_network.dylib 
0x3b6ea000 - 0x3b6f1fff libsystem_notify.dylib armv7 <f6561a42c76034358fa7f548d7370d3b> /usr/lib/system/libsystem_notify.dylib 
0x3b6f2000 - 0x3b6f7fff libsystem_platform.dylib armv7 <9e431bb26aef3de5b81cd263f26376e8> /usr/lib/system/libsystem_platform.dylib 
0x3b6f8000 - 0x3b6fdfff libsystem_pthread.dylib armv7 <eda21cf243e23680b1eb612f56cf610a> /usr/lib/system/libsystem_pthread.dylib 
0x3b6fe000 - 0x3b6fffff libsystem_sandbox.dylib armv7 <cae56f034af23a1991bdfaba87c87880> /usr/lib/system/libsystem_sandbox.dylib 
0x3b700000 - 0x3b702fff libsystem_stats.dylib armv7 <a254aceb982e370abd906f76ea94859c> /usr/lib/system/libsystem_stats.dylib 
0x3b703000 - 0x3b703fff libunwind.dylib armv7 <45c29718368e3d1c8821911ab5953080> /usr/lib/system/libunwind.dylib 
0x3b704000 - 0x3b71efff libxpc.dylib armv7 <8e38118685e5388db38bd8367d2d2c47> /usr/lib/system/libxpc.dylib 
+0

這聽起來更像是您要訪問的對象不是活了..你下注發佈崩潰報告或崩潰的回溯。 – Volker

+1

通過檢查您的崩潰日誌來確認您正在發生內存崩潰。您應該在列表頂部看到您的應用程序,並強制彈出。 –

+0

問題是它只在沒有被調試時崩潰。它適用於所有連接到計算機的模擬器和所有iphones。但是當它斷開連接時,它會崩潰。所以我無法收集任何數據。 – Daniel

回答

1

一般情況下,應用程序應該在5秒內從拍了拍他的電話圖標時用戶推出。如果它在5秒內不啓動,則OS退出應用程序。在初始化應用程序的第一個視圖之後,需要執行的任務只需要很長時間。

這是鏈接。 https://developer.apple.com/library/ios/documentation/iphone/conceptual/iphoneosprogrammingguide/ManagingYourApplicationsFlow/ManagingYourApplicationsFlow.html

它說: - 您的應用程序:willFinishLaunchingWithOptions:和應用中:didFinishLaunchingWithOptions:方法應該總是輕量級儘可能減少您的應用程序的啓動時間。預計應用程序將啓動並初始化,並在不到5秒的時間內開始處理事件。如果應用程序沒有及時完成其啓動週期,系統會因爲無響應而殺死它。因此,任何可能會減慢啓動速度的任務(例如訪問網絡)應該在輔助線程上異步執行。