當我嘗試播放視頻時獲取SIGABRT信號（Objective-C）

當我嘗試加載視頻時，我收到一個引發的SIGABRT。以下是我的代碼。如果有人能讓我知道爲什麼我會得到這個錯誤，那會很好。正在爲該行引發信號：theMovie = [[MPMoviePlayerController alloc] initWithContentURL：[NSURL fileURLWithPath：url]];當我嘗試播放視頻時獲取SIGABRT信號（Objective-C）

兩個問題：我的代碼有什麼問題？ SIGABRT通常意味着什麼？

#import "Video.h" 
#import "MyManager.h"

＃進口

@implementation Video 

MPMoviePlayerController* theMovie; 

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{ 
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 

    } 
    return self; 
} 

- (void)dealloc{ 
    [theMovie release]; 
    [super dealloc]; 
} 

- (void)didReceiveMemoryWarning 
{ 
    // Releases the view if it doesn't have a superview. 
    [super didReceiveMemoryWarning]; 

    // Release any cached data, images, etc that aren't in use. 
} 

#pragma mark - View lifecycle 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    MyManager *sharedManager = [MyManager sharedManager]; 
    NSString *tempName = sharedManager.vidName; 
    NSString *url = [[NSBundle mainBundle] pathForResource:sharedManager.vidName ofType:@"mp4"]; 
    theMovie = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL fileURLWithPath:url]]; 
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(movieFinishedCallBack:) name:MPMoviePlayerPlaybackDidFinishNotification object:theMovie]; 
    theMovie.scalingMode = MPMovieScalingModeAspectFit; 
    [theMovie.view setFrame:self.view.bounds]; 
    [self.view addSubview:theMovie.view]; 
    [theMovie play]; 

    } 

-(void)movieFinishedCallBack:(NSNotification *) aNotification{ 
    theMovie = [aNotification object]; 
    [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:theMovie]; 
    [theMovie.view removeFromSuperview]; 
    [theMovie pause]; 
    [theMovie stop]; 
} 

-(void) viewWillDisappear:(BOOL)animated{ 
    [theMovie pause]; // assume myMoviePlayer is an instance variable 
    [theMovie stop]; 
    theMovie = nil; 
    [theMovie release]; 
} 

- (void)viewDidUnload 
{ 
    [theMovie pause]; // assume myMoviePlayer is an instance variable 
    [theMovie stop]; 
    theMovie = nil; 
    [theMovie release]; 

    [super viewDidUnload]; 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    // Return YES for supported orientations 
    return (interfaceOrientation == UIInterfaceOrientationPortrait); 
} 

@end

來源

2012-03-24 Sean Smyth

你知道如何查看崩潰報告嗎？檢查可能會給你一些線索。這可能是由於一個未捕獲的異常 – tams 2012-03-24 20:48:59

@tams我對iPhone開發非常陌生，這是我在Objective-c中的第一個項目。我不知道如何查看崩潰報告。我該如何解決這個問題？這正是輸出日誌中的內容嗎？在日誌中說：拋出'NSException' – 2012-03-24 20:52:12

的實例後調用terminate，我認爲如果你是新的，你可以開始調試你的視圖的確實加載方法。在方法的開始處放置一個斷點並逐步執行代碼。確保你所有的變量都是正確的，並且你的字符串設置正確。問題可能在那裏。 – tams 2012-03-24 20:57:51

我發現，當您嘗試訪問的對象不存在或爲空引用是SIGABRT錯誤通常出現。所以也許你的問題是該文件不存在或者你可能丟失了對你的文件或你的videoplayer對象的引用。

彼得

來源

2012-03-24 20:54:34 Luffen

當我嘗試播放視頻時獲取SIGABRT信號（Objective-C）

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