应用程序的 Live Bytes 达到 1 GB 以上，模拟器显示空白屏幕

Question

我正在从事一个大项目。直到最后一个小时都没有问题。突然间，我的应用程序的活动字节数不断增加，超过 1 GB，我什至无法确定问题出在哪里。我已经搜索并找到了this，但它是针对整体字节而不是实时字节。

五分钟后我收到以下错误：

xxxxxx(1456,0x252d1a8) malloc: *** mach_vm_map(size=8388608) failed (error code=3)
*** error: can't allocate region

这是 Instruments 的屏幕截图，您可以看到 live bytes 达到 1 GB。

我已经尝试了以下步骤

1. 重置模拟器的内容和设置
2. 删除 Xcode 完整的应用程序文件
3. 删除所有派生文件并彻底清理垃圾
4. 重新安装 Xcode

为了更正确在这行中发现错误

- (void)viewDidLoad
{
    [super viewDidLoad];

    [UserNameTxtFld setBackgroundColor:[UIColor colorWithRed:242.0f/255.0f green:245.0f/255.0f blue:245.0f/255.0f alpha:1.0]];

    [UserPasswordFld setBackgroundColor:[UIColor colorWithRed:242.0f/255.0f green:242.0f/255.0f blue:242.0f/255.0f alpha:1.0]];

    [LoginButton setBackgroundColor:[UIColor colorWithRed:60.0f/255.0f green:179.0f/255.0f blue:113.0f/255.0f alpha:1.0]];

    //[ForgotButton setBackgroundColor:[UIColor lightGrayColor]];

    API=[[BMAPIClass alloc] init];
    API.delegate    =   self;

    UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, UserNameTxtFld.frame.size.height)];

    UserNameTxtFld.leftView = paddingView;

    UserPasswordFld.leftView =paddingView;

    self.appDelegate   =   (BMAppDelegate*)[[UIApplication sharedApplication] delegate];

    //Set Splash screen

    if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
    {
        CGSize result = [[UIScreen mainScreen] bounds].size;
        if(result.height == 480)
        {
            // iPhone Classic
            NSLog(@"iphone 4");

            if(IS_RETINA)
            {
                NSLog(@"Yes retina Display");
                splashScreenImage.image =[UIImage imageNamed:@"splash_640x960.jpg"];
                [visiblePassword setBackgroundImage:[UIImage imageNamed:@"eye_640x960.png"] forState:UIControlStateNormal];

            }
            else
            {
                NSLog(@"Not retina Display");
                splashScreenImage.image =[UIImage imageNamed:@"splash_320x480.jpg"];
                [visiblePassword setBackgroundImage:[UIImage imageNamed:@"eye_320x480.png"] forState:UIControlStateNormal];
            }
        }
        if(result.height == 568)
        {
            // iPhone 5
            NSLog(@"iphone 5");
            splashScreenImage.image =[UIImage imageNamed:@"splash_640x1136.jpg"];
            [visiblePassword setBackgroundImage:[UIImage imageNamed:@"eye_640x1136.png"] forState:UIControlStateNormal];
        }
    }


}

没有任何效果。谁能说说问题出在哪里？

Answer 1

我在这个Link看到了你的代码

根据您给定的代码，您多次使用相同的代码。

    UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, UserNameTxtFld.frame.size.height)];

    UserNameTxtFld.leftView = paddingView;

    UserNameTxtFld.leftViewMode =UITextFieldViewModeAlways;

    UserPasswordFld.leftView =paddingView; // this is wrong(can't use it again)
    UserPasswordFld.leftViewMode =UITextFieldViewModeAlways;

您不能再次使用相同的填充视图。您必须为 UserPasswordFld 字段再次分配它。获取另一个填充视图并使用它，然后它就可以工作了。