从未调用过DrawRect

时间:2012-05-25 19:32:13

标签: iphone objective-c xcode drawrect

我把这段代码放在我的应用中:

-(void)setup {
    [self setNeedsDisplay];
    NSLog(@"Test 1");

}

-(void)drawRect:(CGRect)rect {
    NSLog(@"Test 2");
}

我在NSLog上获得了一堆测试1(因为这是一个UITableViewCell),但在任何时候都没有测试2。

1 个答案:

答案 0 :(得分:3)

我在这里下载了示例项目TableViewSuite(CustomTableViewCell项目):https://developer.apple.com/library/ios/#samplecode/TableViewSuite/Introduction/Intro.html 我能够将您的日志语句添加到TimeZoneCell类中并且能够获得输出。看一下这可能有助于回答您的问题?

#import "TimeZoneCell.h"
#import "TimeZoneWrapper.h"
#import "TimeZoneView.h"
#import "CustomTableViewCellAppDelegate.h"


@implementation TimeZoneCell

@synthesize timeZoneView;


- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {

    if (self = [super initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseIdentifier]) {

        // Create a time zone view and add it as a subview of self's contentView.
        CGRect tzvFrame = CGRectMake(0.0, 0.0, self.contentView.bounds.size.width, self.contentView.bounds.size.height);
        timeZoneView = [[TimeZoneView alloc] initWithFrame:tzvFrame];
        timeZoneView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
        [self.contentView addSubview:timeZoneView];
    }
    return self;
}
-(void)drawRect:(CGRect)rect {
    NSLog(@"Test 2");
}

- (void)setTimeZoneWrapper:(TimeZoneWrapper *)newTimeZoneWrapper {
    // Pass the time zone wrapper to the view
    timeZoneView.timeZoneWrapper = newTimeZoneWrapper;
}


- (void)redisplay {
    [timeZoneView setNeedsDisplay];
}


- (void)dealloc {
    [timeZoneView release];
    [super dealloc];
}


@end