ios - 如何在 viewDidLoad 方法中增加 UIView 的大小？

Question

我是 ios 应用程序的新手。我的主视图有 3 个 View 。这些 View 代表一个图表。任何时候用户打开主视图(我的意思是每次调用 viewDidLoad 时)我都需要测量一些数字并根据它们绘制这些图形。我只需要改变图表的宽度!但是，我尝试手动将大小添加到其中一个图表中，但根本没有改变!任何建议将不胜感激。

如你所见，我在这里添加了 100

self.timerGraph.frame.size.width+100


self.timerGraph.frame = CGRectMake(self.timerGraph.frame.origin.x,self.timerGraph.frame.origin.y,self.timerGraph.frame.size.width+100,self.timerGraph.frame.size.height);

但不受影响!

编辑:我用过这个但是 Ben 正在打印但是宽度没有改变!!

- (void)viewWillAppear:(BOOL)try{

    NSLog(@"Ben");
    self.bestGraph.frame = CGRectMake(self.bestGraph.frame.origin.x,self.timerGraph.frame.origin.y,self.timerGraph.frame.size.width+130,self.timerGraph.frame.size.height);

}

编辑:我删除了一些实现部分以使其更短。

- (void)viewDidLoad
{


    NSNumber *min = [NSNumber numberWithInt:0];
    NSNumber *max = [NSNumber numberWithInt:0];
    NSNumber *avg = [NSNumber numberWithInt:0];
    NSNumber *total = [NSNumber numberWithInt:0];


    [super viewDidLoad];
    bool first = true;
    //Find the worst and best and average graph
    for(int i=0;i<tmp.numberOfTimes;i++)
    {
        //LTTime *myTime = [[LTTime alloc] init];
        LTTime *tmpTime = [tmp timeAtIndex:i];
        if(first)
        {
            first = false;
            min = tmpTime.time;
        }
        if(min>tmpTime.time)
        {
            min = tmpTime.time;
        }
        if(max<tmpTime.time)
        {
            max = tmpTime.time;
        }
        total = @( [tmpTime.time intValue] + [total intValue] );

    }
    avg = @( [total floatValue]/tmp.numberOfTimes);

    self.bestGraph.frame = CGRectMake(self.bestGraph.frame.origin.x,self.timerGraph.frame.origin.y,self.timerGraph.frame.size.width+130,self.timerGraph.frame.size.height);

    }

View 的定义:

@property (weak, nonatomic) IBOutlet UIView *bestGraph;

Answer 1

尝试把你的代码放进去

 - (void)viewWillLayoutSubviews

方法。