模拟HUD, 就是那种loading等待的对话框框
这个是网上抄袭的,改了改:
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#import <UIKit/UIKit.h>@interface LoadingView : UIView {@privateUIActivityIndicatorView *activityView;UIView *container;}- (id)initWithUIView:(UIView *)aView message:(NSString *)msg;- (void) show;- (void) hide;@end?
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#import "LoadingView.h"@implementation LoadingView- (id)initWithUIView:(UIView *)aView message:(NSString *)msg {CGRect containerBounds = aView.bounds; if ((self = [super initWithFrame:aView.bounds])) {UIColor* bgColor = [[UIColor alloc] initWithRed: 128/255.0 green:138/255.0 blue:135/255.0 alpha:1];[self setBackgroundColor:bgColor];[bgColor release];UIView *content = [[UIView alloc] initWithFrame:CGRectMake((containerBounds.size.width - 200) / 2, (containerBounds.size.height - 100) / 2, 200, 100)];UIImageView *imageview = [[UIImageView alloc] initWithImage: [UIImage imageNamed: @"rssloading.png"]];imageview.frame = CGRectMake(0.0, 0.0, content.frame.size.width, content.frame.size.height);[content addSubview:imageview];[imageview release]; activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];activityView.frame = CGRectMake(80, 20, 37.0f, 37.0f);[content addSubview:activityView];CGRect nameLabelRect = CGRectMake(0, 60, 200, 25);UILabel *titleLable = [[UILabel alloc] initWithFrame:nameLabelRect];titleLable.textAlignment = UITextAlignmentCenter;titleLable.text = msg;titleLable.font = [UIFont boldSystemFontOfSize:18];titleLable.alpha = 0.8;titleLable.backgroundColor = [UIColor clearColor];titleLable.textColor = [UIColor whiteColor];[content addSubview: titleLable];[titleLable release];[self addSubview:content];[content release];[self setAlpha:0.67];[self setHidden:YES];container = aView;[container retain]; } return self;}-(void) show {[container addSubview:self];[activityView startAnimating];[self setHidden:NO];}-(void) hide {[activityView stopAnimating];[self setHidden:YES];[self removeFromSuperview];}/*// Only override drawRect: if you perform custom drawing.// An empty implementation adversely affects performance during animation.- (void)drawRect:(CGRect)rect { // Drawing code}*/- (void)dealloc {[activityView release];[container release]; [super dealloc];}@end?
效果图:
