yongxu-app-ios-v1/Temperature/Tools/HUD/Toast/iToast.m

//
//  iToast.m
//  iToast
//
//  Created by Diallo Mamadou Bobo on 2/10/11.
//  Copyright 2011 __MyCompanyName__. All rights reserved.
//

#import "iToast.h"
#import <QuartzCore/QuartzCore.h>

static iToastSettings *sharedSettings = nil;

//@interface iToast (private)
//
//- (iToast *) settings;
//
//@end


@implementation iToast


- (id) initWithText:(NSString *) tex{
	if (self = [super init]) {
		text = [tex copy];
	}
	 
	return self;
}

- (void) show{
	
	iToastSettings *theSettings = _settings;
	
	if (!theSettings) {
		theSettings = [iToastSettings getSharedSettings];
	}
	
	UIFont *font = [UIFont systemFontOfSize:14];
    
    CGSize textSize = [text boundingRectWithSize:CGSizeMake(280, 60) options:NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:font} context:nil].size;
    textSize.height += 10;
    textSize.width += 10;
	
	UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, textSize.width + 5, textSize.height + 5)];
	label.backgroundColor = [UIColor clearColor];
	label.textAlignment = NSTextAlignmentCenter;
	label.textColor = [UIColor whiteColor];
	label.font = font;
	label.text = text;
	label.alpha = 0 ;
	label.numberOfLines = 0;
	
	UIButton *v = [UIButton buttonWithType:UIButtonTypeCustom];
	v.frame = CGRectMake(0, 0, textSize.width + 200, textSize.height + 200);
	label.center = CGPointMake(v.frame.size.width / 2, v.frame.size.height / 2);
	[v addSubview:label];
	
	v.backgroundColor = [UIColor darkGrayColor]; // 背景不要透明
	v.layer.cornerRadius = 5;
	v.alpha = 0 ;
	
	UIWindow *window = [[[UIApplication sharedApplication] windows] objectAtIndex:0];
	
	CGPoint point = CGPointMake(window.frame.size.width/2, window.frame.size.height/2);
	
	if (theSettings.gravity == iToastGravityTop) {
		point = CGPointMake(window.frame.size.width / 2, 45);
	}else if (theSettings.gravity == iToastGravityBottom) {
		point = CGPointMake(window.frame.size.width / 2, window.frame.size.height - 45);
	}else if (theSettings.gravity == iToastGravityCenter) {
		point = CGPointMake(window.frame.size.width/2, window.frame.size.height/2);
	}else{
		point = theSettings.postition;
	}
	
	point = CGPointMake(point.x + offsetLeft, point.y + offsetTop);
	v.center = point;
	
	NSTimer *timer1 = [NSTimer timerWithTimeInterval:((float)theSettings.duration)/1000 
											 target:self selector:@selector(hideToast:) 
										   userInfo:nil repeats:NO];
	[[NSRunLoop mainRunLoop] addTimer:timer1 forMode:NSDefaultRunLoopMode];
	
	[window addSubview:v];
	
	[UIView beginAnimations:nil context:NULL];
	CGRect _frame= v.frame;
	float _w = textSize.width + 10;
	float _h = textSize.height + 10;
	float _x = _frame.origin.x + (_frame.size.width - _w)/2;
	float _y = _frame.origin.y + (_frame.size.height - _h)/2;
	
	[label setFrame:CGRectMake(2, 2, textSize.width + 5, textSize.height + 5)];
	label.alpha = 1 ;
	[v setFrame:CGRectMake(_x,_y,_w,_h)];
	v.alpha = 1;
	[UIView commitAnimations];
	
	
	
	view = v;
	
	[v addTarget:self action:@selector(hideToast:) forControlEvents:UIControlEventTouchDown];
}
- (void) removeToast{
	[view removeFromSuperview];
}
- (void) hideToast:(NSTimer*)theTimer{
	[UIView beginAnimations:nil context:NULL];
	view.alpha = 0;
	[UIView commitAnimations];
	
	[self removeToast];
}




+ (iToast *) makeText:(NSString *) _text{
	iToast *toast = [[iToast alloc] initWithText:_text];
	
	return toast;
}


- (iToast *) setDuration:(NSInteger ) duration{
	[self theSettings].duration = duration;
	return self;
}

- (iToast *) setGravity:(iToastGravity) gravity 
			 offsetLeft:(NSInteger) left
			  offsetTop:(NSInteger) top{
	[self theSettings].gravity = gravity;
	offsetLeft = left;
	offsetTop = top;
	return self;
}

- (iToast *) setGravity:(iToastGravity) gravity{
	[self theSettings].gravity = gravity;
	return self;
}

- (iToast *) setPostion:(CGPoint) _position{
	[self theSettings].postition = CGPointMake(_position.x, _position.y);
	
	return self;
}

-(iToastSettings *) theSettings{
	if (!_settings) {
		_settings = [[iToastSettings getSharedSettings] copy];
	}
	
	return _settings;
}

@end


@implementation iToastSettings
@synthesize duration;
@synthesize gravity;
@synthesize postition;
@synthesize images;

- (void) setImage:(UIImage *) img forType:(iToastType) type{
	if (!images) {
		images = [[NSMutableDictionary alloc] initWithCapacity:4];
	}
	
	if (img) {
		NSString *key = [NSString stringWithFormat:@"%i", type];
		[images setValue:img forKey:key];
	}
}


+ (iToastSettings *) getSharedSettings{
	if (!sharedSettings) {
		sharedSettings = [iToastSettings new];
		sharedSettings.gravity = iToastGravityCenter;
		sharedSettings.duration = 1500;  //增加显示时间，是能够截图
	}
	
	return sharedSettings;
	
}

- (id) copyWithZone:(NSZone *)zone{
	iToastSettings *copy = [iToastSettings new];
	copy.gravity = self.gravity;
	copy.duration = self.duration;
	copy.postition = self.postition;
	
	NSArray *keys = [self.images allKeys];
	
	for (NSString *key in keys){
		[copy setImage:[images valueForKey:key] forType:(iToastType)[key intValue]];
	}
	
	return copy;
}

@end