如何实现loadView? [英] How to implement loadView?

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问题描述

我创建了一个名为 GraphView 的自定义视图。所有我得到的是一个空白的黑屏,当视图加载。这是我的代码:

I've created a custom view called GraphView. All I get is a blank black screen when the view is loaded. Here is my code:

在GraphViewController.m:

in GraphViewController.m:

@synthesize graphView, graphModel;

- (void)loadView
{   
    GraphView *aGraphView = [[GraphView alloc] initWithFrame:CGRectZero];
    self.view = aGraphView;
    self.graphView = aGraphView;

    [aGraphView release];
}

我不知道为什么我只是得到一个黑色的屏幕,在中实现 loadView

I'm not sure why I just get a black screen when I try to implement loadView in GraphViewController.m

推荐答案

我需要使 loadView中的背景颜色为白色

- (void)loadView
{   
    GraphView *aGraphView = [[GraphView alloc] initWithFrame:CGRectZero];
    aGraphView.backgroundColor = [UIColor whiteColor];
    self.view = aGraphView;
    self.graphView = aGraphView;

    [aGraphView release];
}

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