How to implement loadView?

Question

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:

in GraphViewController.m:

@synthesize graphView, graphModel;

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

    [aGraphView release];
}

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

score 2 · Answer 1 · answered Mar 14 '11 at 02:08

2

You're not setting a frame for the GraphView object:

GraphView *aGraphView = [[GraphView alloc] init];

The designated initializer for UIView's is -initWithFrame:. Do something like this (setting the size/origin of the view as you desire):

GraphView *aGraphView = [[GraphView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];

answered Mar 14 '11 at 02:08

indragie

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I made the indicated changes and it still just shows a blank black screen. – ladookie Mar 14 '11 at 02:19
I commented out `loadView` and now it works even though I deleted the .xib file that I was using before. I'm confused as to how it could work without a .xib or a `loadView` – ladookie Mar 14 '11 at 02:29
You need to clean the deployed app as well. Delete the application on the simulator or device. Clean all targets. Run application. Then you'll see how its working. – Mar 14 '11 at 02:32
how do I 'clean all targets, etc.' ? – ladookie Mar 14 '11 at 02:34
Okay I made a new project and copied the files and now when I comment out loadView I get a blank white screen. If i Implement loadView, then I get a blank black screen. I'll post my `graphView.m` – ladookie Mar 14 '11 at 02:46

score 2 · Accepted Answer · answered Mar 18 '11 at 18:17

I need to make the background color white in loadView

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

    [aGraphView release];
}

How to implement loadView?

2 Answers2

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