ios – 自定义警报视图导致iPad旋转时崩溃

概述我正在显示一个自定义警报视图,该视图是从我的视图控制器中的UIAlertView派生的,当我将设备旋转2-3次时,视图控制器和警报视图都会旋转.但随后该应用程序崩溃,没有明确的线索.我在All Exceptions上有一个断点,但它无法捕捉它. 如果我使用标准的UIAlertView,则不会发生此崩溃.我从其他人那里找到了自定义alertview的代码.这里有什么错误的补充吗？或者我怎样才能获得更 我正在显示一个自定义警报视图,该视图是从我的视图控制器中的UIAlertVIEw派生的,当我将设备旋转2-3次时,视图控制器和警报视图都会旋转.但随后该应用程序崩溃,没有明确的线索.我在All Exceptions上有一个断点,但它无法捕捉它.

如果我使用标准的UIAlertVIEw,则不会发生此崩溃.我从其他人那里找到了自定义alertvIEw的代码.这里有什么错误的补充吗？或者我怎样才能获得更多有关正在发生的事情的线索？

@implementation CustomAlertVIEw- (voID) setBackgroundcolor:(UIcolor *) background             withstrokecolor:(UIcolor *) stroke{    if(fillcolor != nil)    {        [fillcolor release];        [bordercolor release];    }    fillcolor = [background retain];    bordercolor = [stroke retain];}- (ID)initWithFrame:(CGRect)frame{    if((self = [super initWithFrame:frame]))    {        if(fillcolor == nil)        {        }    }    return self;}- (voID)layoutSubvIEws{    for (UIVIEw *sub in [self subvIEws])    {        if([sub class] == [UIImageVIEw class] && sub.tag == 0)        {            // The alert background UIImageVIEw tag is 0,// if you are adding your own UIImageVIEw's             // make sure your Tags != 0 or this fix             // will remove your UIImageVIEw's as well!            [sub removeFromSupervIEw];            break;        }    }}- (voID)drawRect:(CGRect)rect{       CGContextRef context = UIGraphicsGetCurrentContext();    CGContextClearRect(context,rect);    CGContextSetAllowsAntialiasing(context,true);    CGContextSetlinewidth(context,0.0);    CGContextSetAlpha(context,0.8);     CGContextSetlinewidth(context,2.0);    CGContextSetstrokecolorWithcolor(context,[bordercolor CGcolor]);    CGContextSetFillcolorWithcolor(context,[fillcolor CGcolor]);    // Draw background    CGfloat backOffset = 2;    CGRect backRect = CGRectMake(rect.origin.x + backOffset,rect.origin.y + backOffset,rect.size.wIDth - backOffset*2,rect.size.height - backOffset*2);    [self drawRoundedRect:backRect inContext:context withRadius:8];    CGContextDrawPath(context,kCGPathFillstroke);    // Clip Context    CGRect clipRect = CGRectMake(backRect.origin.x + backOffset-1,backRect.origin.y + backOffset-1,backRect.size.wIDth - (backOffset-1)*2,backRect.size.height - (backOffset-1)*2);    [self drawRoundedRect:clipRect inContext:context withRadius:8];    CGContextClip (context);    //Draw highlight    CGGradIEntRef glossGradIEnt;    CGcolorSpaceRef rgbcolorspace;    size_t num_locations = 2;    CGfloat locations[2] = { 0.0,1.0 };    CGfloat components[8] = { 1.0,1.0,0.35,0.06 };    rgbcolorspace = CGcolorSpaceCreateDeviceRGB();    glossGradIEnt = CGGradIEntCreateWithcolorComponents(rgbcolorspace,components,locations,num_locations);    CGRect ovalRect = CGRectMake(-130,-115,(rect.size.wIDth*2),rect.size.wIDth/2);    CGPoint start = CGPointMake(rect.origin.x,rect.origin.y);    CGPoint end = CGPointMake(rect.origin.x,rect.size.height/5);    CGContextSetAlpha(context,1.0);     CGContextAddEllipseInRect(context,ovalRect);    CGContextClip (context);    CGContextDrawlinearGradIEnt(context,glossGradIEnt,start,end,0);    CGGradIEntRelease(glossGradIEnt);    CGcolorSpaceRelease(rgbcolorspace); }- (voID) drawRoundedRect:(CGRect) rrect inContext:(CGContextRef) context               withRadius:(CGfloat) radius{    CGContextBeginPath (context);    CGfloat minx = CGRectGetMinX(rrect),mIDx = CGRectGetMIDX(rrect),maxx = CGRectGetMaxX(rrect);    CGfloat miny = CGRectGetMinY(rrect),mIDy = CGRectGetMIDY(rrect),maxy = CGRectGetMaxY(rrect);    CGContextMovetoPoint(context,minx,mIDy);    CGContextAddArctopoint(context,miny,mIDx,radius);    CGContextAddArctopoint(context,maxx,mIDy,maxy,radius);    CGContextClosePath(context);}- (voID)DisabledismissForIndex:(int)index_{    canIndex = index_;    Disabledismiss = TRUE;}- (voID)dismissAlert{    [self dismissWithClickedbuttonIndex:[self cancelbuttonIndex] animated:YES];}- (voID)vibratealert:(float)seconds{    canVirate = TRUE;    [self moveleft];    [self performSelector:@selector (stopVibration) withObject:nil afterDelay:seconds];}-(voID)dismissWithClickedbuttonIndex:(NSInteger)buttonIndex animated:(BOol)animated {    if (Disabledismiss == TRUE && canIndex == buttonIndex){    }else {    [super dismissWithClickedbuttonIndex:buttonIndex animated:animated];    }}- (voID)hIDeAfter:(float)seconds{    [self performSelector:@selector (dismissAlert) withObject:nil afterDelay:seconds];}- (voID)moveRight{    if (canVirate){        [UIVIEw beginAnimations:nil context:NulL];        [UIVIEw setAnimationDuration:0.05];        self.transform = CGAffinetransformMakeTranslation(-10.0,0.0);        [UIVIEw commitAnimations];        [self performSelector:@selector (moveleft) withObject:nil afterDelay:0.05];    }}- (voID)moveleft{    if (canVirate){    [UIVIEw beginAnimations:nil context:NulL];    [UIVIEw setAnimationDuration:0.05];    self.transform = CGAffinetransformMakeTranslation(10.0,0.0);    [UIVIEw commitAnimations];  [self performSelector:@selector (moveRight) withObject:nil afterDelay:0.05];    }}- (voID)stopVibration{    canVirate = FALSE;    self.transform = CGAffinetransformMakeTranslation(0.0,0.0);}@end

解决方法 好的,现在我找到了.在layoutVIEws方法中,替换[sub removeFromSupervIEw]; line(((UIImageVIEw *)sub).image = nil;为我解决了这个问题.尽管如此,我仍然不确定原因. 总结

以上是内存溢出为你收集整理的ios – 自定义警报视图导致iPad旋转时崩溃全部内容，希望文章能够帮你解决ios – 自定义警报视图导致iPad旋转时崩溃所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。