[iOS]异常捕捉 - iOS - 程序员开发

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[iOS]异常捕捉(二)

2019-08-31 00:20:52 【大中小】浏览:60次

signal(SIGFPE, SignalHandler); signal(SIGBUS, SignalHandler); signal(SIGPIPE, SignalHandler); } void HandleException(NSException *exception) { int32_t exceptionCount = OSAtomicIncrement32(&UncaughtExceptionCount); if (exceptionCount > UncaughtExceptionMaximum) { return; } NSArray *callStack = [UncaughtExceptionHandler backtrace]; NSMutableDictionary *userInfo = [NSMutableDictionary dictionaryWithDictionary:[exception userInfo]]; [userInfo setObject:callStack forKey:UncaughtExceptionHandlerAddressesKey]; [[[UncaughtExceptionHandler alloc] init] performSelectorOnMainThread:@selector(handleException:) withObject:[NSException exceptionWithName:[exception name] reason:[exception reason] userInfo:userInfo] waitUntilDone:YES]; } void SignalHandler(int signal) { int32_t exceptionCount = OSAtomicIncrement32(&UncaughtExceptionCount); if (exceptionCount > UncaughtExceptionMaximum) { return; } NSMutableDictionary *userInfo = [NSMutableDictionary dictionaryWithObject:[NSNumber numberWithInt:signal] forKey:UncaughtExceptionHandlerSignalKey]; NSArray *callStack = [UncaughtExceptionHandler backtrace]; [userInfo setObject:callStack forKey:UncaughtExceptionHandlerAddressesKey]; [[[UncaughtExceptionHandler alloc] init] performSelectorOnMainThread:@selector(handleException:) withObject:[NSException exceptionWithName:UncaughtExceptionHandlerSignalExceptionName reason:[NSString stringWithFormat:@"Signal %d was raised.",signal] userInfo:[NSDictionary dictionaryWithObject:[NSNumber numberWithInt:signal] forKey:UncaughtExceptionHandlerSignalKey]] waitUntilDone:YES]; }

开启异常捕捉

#import "AppDelegate.h"
#import "UncaughtExceptionHandler.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    
    UncaughtExceptionHandlerStart();
    
    return YES;
}

异常示例

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    NSArray *array = @[@"1"];
    NSLog(@"%@",array[5]);
}

运行效果

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