0
我创建为iPhone/iPad的（通用的应用程序）。它测验的应用程序工作正常，在模拟器，但在真机上也有一些问题，我面对..多时间的分配和释放
- 我以编程方式创建UILabels和UIButton，并且我将它们用于多次显示问题和答案。
问题是当我达到约问题20至22中的应用程序崩溃。我不知道为什么。没有发现内存泄漏。我释放了-dealloc函数中的所有标签和按钮。
可能会发生，因为22个问题需要一些内存，直到dealloc函数调用才会释放。
我要的是，有没有什么办法来释放每一个问题后，标签和按钮，然后它会再次分配？或者我可以使用更少的内存分配标签和按钮的任何方式？
我使用这个代码：
//lbl ref to btn1
ans1 = [[[UILabel alloc] initWithFrame:CGRectMake(36, 292, 697, 100)] autorelease];
ans1.numberOfLines = 0;
ans1.font = [UIFont systemFontOfSize:26];
ans1.text = [theQuiz objectAtIndex:row+1];
ans1.lineBreakMode = UILineBreakModeWordWrap;
[ans1 sizeToFit];
//[self.view addSubview:ans1];
//lbl ref to btn2
ans2 = [[[UILabel alloc] initWithFrame:CGRectMake(36, 312 + ans1.frame.size.height , 697, 100)] autorelease];
ans2.numberOfLines = 0;
ans2.font = [UIFont systemFontOfSize:26];
ans2.text = [theQuiz objectAtIndex:row+2];
ans2.lineBreakMode = UILineBreakModeWordWrap;
[ans2 sizeToFit];
// [self.view addSubview:ans2];
//lbl ref to btn3
ans3 = [[[UILabel alloc] initWithFrame:CGRectMake(36 ,332 + ans1.frame.size.height + ans2.frame.size.height , 697 , 100)] autorelease];
ans3.numberOfLines = 0;
ans3.font = [UIFont systemFontOfSize:26];
ans3.text = [theQuiz objectAtIndex:row+3] ;
ans3.lineBreakMode = UILineBreakModeWordWrap;
[ans3 sizeToFit];
// [self.view addSubview:ans3];
//lbl ref to btn4
ans4 = [[[UILabel alloc] initWithFrame:CGRectMake(36, 352 + ans1.frame.size.height + ans2.frame.size.height + ans3.frame.size.height, 697, 100)] autorelease];
ans4.numberOfLines = 0;
ans4.font = [UIFont systemFontOfSize:26];
ans4.text = [theQuiz objectAtIndex:row+4];
ans4.lineBreakMode = UILineBreakModeWordWrap;
[ans4 sizeToFit];
// [self.view addSubview:ans4];
rightAnswer = [[theQuiz objectAtIndex:row+5] intValue];
Question = [[[UILabel alloc] initWithFrame:CGRectMake(22, 130, 725, 160)] autorelease];
Question.numberOfLines = 0;
//Question.font = [UIFont systemFontOfSize:27];
Question.text = [NSString stringWithFormat:@"%@" ,selected1];
Question.lineBreakMode = UILineBreakModeWordWrap;
[Question setFont:[UIFont fontWithName:@"Futura" size:26]];
Question.backgroundColor = [UIColor clearColor];
[Question sizeToFit];
[self.view addSubview:Question];
//For 1st Option.
button = [UIButton buttonWithType:UIButtonTypeCustom];
[button addTarget:self
action:@selector(buttonOne)
forControlEvents:UIControlEventTouchDown];
button.titleLabel.lineBreakMode = UILineBreakModeWordWrap;
button.titleLabel.font = [UIFont systemFontOfSize:24];
[button setTitle:[theQuiz objectAtIndex:row+1] forState:UIControlStateNormal];
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
button.frame = CGRectMake(34, 200 + Question.frame.size.height , 700, ans1.frame.size.height + 20) ;
[self.view addSubview:button];
button.layer.borderWidth = 3;
button.layer.borderColor = [[UIColor purpleColor ] CGColor];
button.layer.cornerRadius = 10.0;
[button setBackgroundImage:[UIImage imageNamed:@"buttun.png"] forState:UIControlStateNormal];
button.titleEdgeInsets = UIEdgeInsetsMake(5, 5, 5, 5);
//For 2nd Option.
button2 = [UIButton buttonWithType:UIButtonTypeCustom];
[button2 addTarget:self
action:@selector(buttonTwo)
forControlEvents:UIControlEventTouchDown];
[button2 setTitle:[theQuiz objectAtIndex:row+2] forState:UIControlStateNormal];
[button2 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
button2.titleLabel.lineBreakMode = UILineBreakModeWordWrap;
button2.titleLabel.font = [UIFont systemFontOfSize:24];
button2.frame = CGRectMake(34, 230 + Question.frame.size.height + button.frame.size.height , 700, ans2.frame.size.height + 20);
button2.layer.borderWidth = 3;
button2.layer.borderColor = [[UIColor darkGrayColor ] CGColor];
button2.layer.cornerRadius = 10.0;
[self.view addSubview:button2];
[button2 setBackgroundImage:[UIImage imageNamed:@"buttun2.png"] forState:UIControlStateNormal];
button2.titleEdgeInsets = UIEdgeInsetsMake(5, 5, 5, 5);
//For 3rd Option.
button3 = [UIButton buttonWithType:UIButtonTypeCustom];
[button3 addTarget:self
action:@selector(buttonThree)
forControlEvents:UIControlEventTouchDown];
[button3 setTitle:[theQuiz objectAtIndex:row+3] forState:UIControlStateNormal];
[button3 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
button3.titleLabel.lineBreakMode = UILineBreakModeWordWrap;
button3.titleLabel.font = [UIFont systemFontOfSize:24];
button3.frame = CGRectMake(34, 260 + Question.frame.size.height + button.frame.size.height + button2.frame.size.height , 700, ans3.frame.size.height + 20);
button3.layer.borderWidth = 3;
button3.layer.borderColor = [[UIColor purpleColor ] CGColor];
button3.layer.cornerRadius = 10.0;
[self.view addSubview:button3];
[button3 setBackgroundImage:[UIImage imageNamed:@"buttun.png"] forState:UIControlStateNormal];
button3.titleEdgeInsets = UIEdgeInsetsMake(5, 5, 5, 5);
//For 4th Option.
button4 = [UIButton buttonWithType:UIButtonTypeCustom];
[button4 addTarget:self
action:@selector(buttonFour)
forControlEvents:UIControlEventTouchDown];
[button4 setTitle:[theQuiz objectAtIndex:row+4] forState:UIControlStateNormal];
[button4 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
button4.titleLabel.lineBreakMode = UILineBreakModeWordWrap;
button4.titleLabel.font = [UIFont systemFontOfSize:24];
button4.frame = CGRectMake(34, 290 + Question.frame.size.height + button.frame.size.height + button2.frame.size.height + button3.frame.size.height , 700, ans4.frame.size.height + 20);
button4.layer.borderWidth = 3;
button4.layer.borderColor = [[UIColor darkGrayColor ] CGColor];
button4.layer.cornerRadius = 10.0;
[self.view addSubview:button4];
[button4 setBackgroundImage:[UIImage imageNamed:@"buttun2.png"] forState:UIControlStateNormal];
button4.titleEdgeInsets = UIEdgeInsetsMake(5, 5, 5, 5);
NSString *strright = [theQuiz objectAtIndex:row+7];
//NSString *strtext = [[NSString alloc] initWithFormat:@"%@" , strright];
rightans = [[[UILabel alloc] initWithFrame:CGRectMake(50, 330, 650, 150)]autorelease];
rightans.numberOfLines = 0;
rightans.text = [NSString stringWithFormat:@"%@" , strright];
rightans.backgroundColor = [UIColor clearColor];
rightans.font = [UIFont systemFontOfSize:26];
[self.view addSubview:rightans];
[rightans sizeToFit];
[rightans setHidden:YES];
//Description.
NSString *des = [theQuiz objectAtIndex:row+6];
// NSString *destext = [[NSString alloc] initWithFormat:@"\n> Explanation :\n%@\n\n" , des];
Description = [[[UILabel alloc] initWithFrame:CGRectMake(40, 400 + rightans.frame.size.height , 690, 150)] autorelease];
Description.numberOfLines = 0;
// Description.font = [UIFont systemFontOfSize:13.5];
Description.text = [NSString stringWithFormat:@"\n> Explanation :\n%@\n\n" , des];
[Description setFont:[UIFont fontWithName:@"Futura" size:26]];
Description.lineBreakMode = UILineBreakModeWordWrap;
Description.backgroundColor = [UIColor clearColor];
[Description sizeToFit];
[self.view addSubview:Description];
[Description setHidden:YES];
ContainerView = [[UIView alloc] initWithFrame:CGRectMake(30, 400 + rightans.frame.size.height , 700 ,Description.frame.size.height)];
ContainerView.backgroundColor = [UIColor clearColor];
ContainerView.layer.cornerRadius = 10.0;
ContainerView.layer.borderColor = [[UIColor grayColor] CGColor];
ContainerView.layer.borderWidth = 3;
// [ContainerView addSubview:Description];
[self.view addSubview:ContainerView];
[ContainerView setHidden:YES];
任何帮助？
谢谢。
我再次使用这个标签来查看第二个问题..如果我在这里释放它，那么应用程序将停止在这一点..因为我的标签发布，所以没有分配给我的下一个问题。 – iUser
那么，你在下一个问题之后发布它吗？此外，只有崩溃日志（无论出现在控制台上）可以帮助我们处理崩溃。 – Akshay