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我试图追查崩溃的根源。我已经对应用程序进行了分析以寻找僵尸，它似乎与更新我的 UILabel 中的一个文本有关。我认为我没有不正确地设置文本值。这看起来对吗？

在此处输入图像描述

这是我设置 UILabel 文本的地方。

- (void) updateTimecodeDisplay
{
    VarController *sharedController = [VarController sharedController];

    int time0 = sharedController.timeCode0Property;
    int time1 = sharedController.timeCode1Property;
    int time2 = sharedController.timeCode2Property;
    int time3 = sharedController.timeCode3Property;
    int time4 = sharedController.timeCode4Property;
    int time5 = sharedController.timeCode5Property;
    int time6 = sharedController.timeCode6Property;
    int time7 = sharedController.timeCode7Property;
    int time8 = sharedController.timeCode8Property;
    int time9 = sharedController.timeCode9Property;


    if (time0 != 16)
    {
        [timeCodeLabel0 setText:[NSString stringWithFormat:@"%d", time0]];
    }
    else {
        [timeCodeLabel0 setText:[NSString stringWithFormat:@""]];
    }
    if (time1 != 16)
    {
       [timeCodeLabel1 setText:[NSString stringWithFormat:@"%d", time1]];
    }
    else {
        [timeCodeLabel1 setText:[NSString stringWithFormat:@""]];
    }
    if (time2 != 16)
    {
        [timeCodeLabel2 setText:[NSString stringWithFormat:@"%d", time2]];
    }
    else {
        [timeCodeLabel2 setText:[NSString stringWithFormat:@""]];
    }
    if (time3 != 16)
    {
        [timeCodeLabel3 setText:[NSString stringWithFormat:@"%d", time3]];
    }
    else {
        [timeCodeLabel3 setText:[NSString stringWithFormat:@""]];
    }
    if (time4 != 16)
    {
        [timeCodeLabel4 setText:[NSString stringWithFormat:@"%d", time4]];
    }
    else {
        [timeCodeLabel4 setText:[NSString stringWithFormat:@""]];
    }
    if (time5 != 16)
    {
        [timeCodeLabel5 setText:[NSString stringWithFormat:@"%d", time5]];
    }
    else {
        [timeCodeLabel5 setText:[NSString stringWithFormat:@""]];
    }
    if (time6 != 16)
    {
        [timeCodeLabel6 setText:[NSString stringWithFormat:@"%d", time6]];
    }
    else {
        [timeCodeLabel6 setText:[NSString stringWithFormat:@""]];
    }
    if (time7 != 16)
    {
        [timeCodeLabel7 setText:[NSString stringWithFormat:@"%d", time7]];
    }
    else {
        [timeCodeLabel7 setText:[NSString stringWithFormat:@""]];
    } 
    if (time8 != 16)
    {
        [timeCodeLabel8 setText:[NSString stringWithFormat:@"%d", time8]];
    }
    else {
        [timeCodeLabel8 setText:[NSString stringWithFormat:@""]];
    }
    if (time9 != 16)
    {
        [timeCodeLabel9 setText:[NSString stringWithFormat:@"%d", time9]];
    }
    else {
        [timeCodeLabel9 setText:[NSString stringWithFormat:@""]];
    }
}

UILabel 在头文件中声明如下：

我现在已经为 UILabel 添加了如下所示的属性，并将它们合成到 .m 文件中。尽管如此，仍然遇到完全相同的问题。

@property (weak) IBOutlet UILabel *timeCodeLabel0;
@property (weak) IBOutlet UILabel *timeCodeLabel1;
@property (weak) IBOutlet UILabel *timeCodeLabel2;
@property (weak) IBOutlet UILabel *timeCodeLabel3;
@property (weak) IBOutlet UILabel *timeCodeLabel4;
@property (weak) IBOutlet UILabel *timeCodeLabel5;
@property (weak) IBOutlet UILabel *timeCodeLabel6;
@property (weak) IBOutlet UILabel *timeCodeLabel7;
@property (weak) IBOutlet UILabel *timeCodeLabel8;
@property (weak) IBOutlet UILabel *timeCodeLabel9;
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1 回答 1

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我认为您应该查看这篇文章来讨论“->”运算符：点（“.”）运算符和箭头（“->”）运算符在 C 与 Objective-C 中的使用

这意味着您不应该使用“->”来访问属性。因为有很多底层。希望这可以帮助。

IBOutlet 应该使用@weak

于 2015-01-12T22:34:19.870 回答