mirror of
https://github.com/moparisthebest/mailiverse
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268 lines
8.4 KiB
Objective-C
Executable File
268 lines
8.4 KiB
Objective-C
Executable File
//
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// EGORefreshTableHeaderView.m
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// Demo
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//
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// Created by Devin Doty on 10/14/09October14.
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// Copyright 2009 enormego. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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#import "EGORefreshTableHeaderView.h"
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#define TEXT_COLOR [UIColor colorWithRed:87.0/255.0 green:108.0/255.0 blue:137.0/255.0 alpha:1.0]
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#define FLIP_ANIMATION_DURATION 0.18f
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@interface EGORefreshTableHeaderView (Private)
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- (void)setState:(EGOPullRefreshState)aState;
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@end
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@implementation EGORefreshTableHeaderView
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@synthesize delegate=_delegate;
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- (void)setStatus:(NSString *)text
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{
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_statusLabel.text = text;
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}
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- (id)initWithFrame:(CGRect)frame arrowImageName:(NSString *)arrow textColor:(UIColor *)textColor {
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if((self = [super initWithFrame:frame])) {
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self.autoresizingMask = UIViewAutoresizingFlexibleWidth;
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self.backgroundColor = [UIColor colorWithRed:226.0/255.0 green:231.0/255.0 blue:237.0/255.0 alpha:1.0];
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UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, frame.size.height - 30.0f, self.frame.size.width, 20.0f)];
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label.autoresizingMask = UIViewAutoresizingFlexibleWidth;
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label.font = [UIFont systemFontOfSize:12.0f];
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label.textColor = textColor;
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label.shadowColor = [UIColor colorWithWhite:0.9f alpha:1.0f];
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label.shadowOffset = CGSizeMake(0.0f, 1.0f);
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label.backgroundColor = [UIColor clearColor];
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label.textAlignment = (UITextAlignment)UITextAlignmentCenter;
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[self addSubview:label];
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_lastUpdatedLabel=label;
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[label release];
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label = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, frame.size.height - 48.0f, self.frame.size.width, 20.0f)];
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label.autoresizingMask = UIViewAutoresizingFlexibleWidth;
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label.font = [UIFont boldSystemFontOfSize:13.0f];
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label.textColor = textColor;
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label.shadowColor = [UIColor colorWithWhite:0.9f alpha:1.0f];
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label.shadowOffset = CGSizeMake(0.0f, 1.0f);
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label.backgroundColor = [UIColor clearColor];
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label.textAlignment = (UITextAlignment)UITextAlignmentCenter;
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[self addSubview:label];
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_statusLabel=label;
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[label release];
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CALayer *layer = [CALayer layer];
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layer.frame = CGRectMake(25.0f, frame.size.height - 65.0f, 30.0f, 55.0f);
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layer.contentsGravity = kCAGravityResizeAspect;
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layer.contents = (id)[UIImage imageNamed:arrow].CGImage;
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#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 40000
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if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) {
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layer.contentsScale = [[UIScreen mainScreen] scale];
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}
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#endif
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[[self layer] addSublayer:layer];
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_arrowImage=layer;
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UIActivityIndicatorView *view = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
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view.frame = CGRectMake(25.0f, frame.size.height - 38.0f, 20.0f, 20.0f);
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[self addSubview:view];
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_activityView = view;
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[view release];
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[self setState:EGOOPullRefreshNormal];
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}
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return self;
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}
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- (id)initWithFrame:(CGRect)frame {
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return [self initWithFrame:frame arrowImageName:@"blueArrow.png" textColor:TEXT_COLOR];
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}
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#pragma mark -
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#pragma mark Setters
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- (void)refreshLastUpdatedDate {
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if ([_delegate respondsToSelector:@selector(egoRefreshTableHeaderDataSourceLastUpdated:)]) {
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NSDate *date = [_delegate egoRefreshTableHeaderDataSourceLastUpdated:self];
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[NSDateFormatter setDefaultFormatterBehavior:NSDateFormatterBehaviorDefault];
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NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
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[dateFormatter setDateStyle:NSDateFormatterShortStyle];
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[dateFormatter setTimeStyle:NSDateFormatterShortStyle];
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_lastUpdatedLabel.text = [NSString stringWithFormat:@"Last Updated: %@", [dateFormatter stringFromDate:date]];
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[[NSUserDefaults standardUserDefaults] setObject:_lastUpdatedLabel.text forKey:@"EGORefreshTableView_LastRefresh"];
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[[NSUserDefaults standardUserDefaults] synchronize];
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} else {
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_lastUpdatedLabel.text = nil;
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}
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}
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- (void)setState:(EGOPullRefreshState)aState{
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switch (aState) {
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case EGOOPullRefreshPulling:
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_statusLabel.text = NSLocalizedString(@"Release to refresh...", @"Release to refresh status");
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[CATransaction begin];
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[CATransaction setAnimationDuration:FLIP_ANIMATION_DURATION];
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_arrowImage.transform = CATransform3DMakeRotation((M_PI / 180.0) * 180.0f, 0.0f, 0.0f, 1.0f);
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[CATransaction commit];
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break;
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case EGOOPullRefreshNormal:
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if (_state == EGOOPullRefreshPulling) {
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[CATransaction begin];
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[CATransaction setAnimationDuration:FLIP_ANIMATION_DURATION];
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_arrowImage.transform = CATransform3DIdentity;
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[CATransaction commit];
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}
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_statusLabel.text = NSLocalizedString(@"Pull down to refresh...", @"Pull down to refresh status");
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[_activityView stopAnimating];
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[CATransaction begin];
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[CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions];
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_arrowImage.hidden = NO;
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_arrowImage.transform = CATransform3DIdentity;
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[CATransaction commit];
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[self refreshLastUpdatedDate];
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break;
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case EGOOPullRefreshLoading:
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_statusLabel.text = NSLocalizedString(@"Loading...", @"Loading Status");
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[_activityView startAnimating];
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[CATransaction begin];
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[CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions];
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_arrowImage.hidden = YES;
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[CATransaction commit];
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break;
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default:
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break;
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}
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_state = aState;
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}
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#pragma mark -
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#pragma mark ScrollView Methods
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- (void)egoRefreshScrollViewDidScroll:(UIScrollView *)scrollView {
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if (_state == EGOOPullRefreshLoading) {
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CGFloat offset = MAX(scrollView.contentOffset.y * -1, 0);
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offset = MIN(offset, 60);
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scrollView.contentInset = UIEdgeInsetsMake(offset, 0.0f, 0.0f, 0.0f);
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} else if (scrollView.isDragging) {
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BOOL _loading = NO;
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if ([_delegate respondsToSelector:@selector(egoRefreshTableHeaderDataSourceIsLoading:)]) {
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_loading = [_delegate egoRefreshTableHeaderDataSourceIsLoading:self];
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}
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if (_state == EGOOPullRefreshPulling && scrollView.contentOffset.y > -65.0f && scrollView.contentOffset.y < 0.0f && !_loading) {
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[self setState:EGOOPullRefreshNormal];
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} else if (_state == EGOOPullRefreshNormal && scrollView.contentOffset.y < -65.0f && !_loading) {
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[self setState:EGOOPullRefreshPulling];
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}
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if (scrollView.contentInset.top != 0) {
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scrollView.contentInset = UIEdgeInsetsZero;
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}
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}
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}
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- (void)egoRefreshScrollViewDidEndDragging:(UIScrollView *)scrollView {
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BOOL _loading = NO;
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if ([_delegate respondsToSelector:@selector(egoRefreshTableHeaderDataSourceIsLoading:)]) {
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_loading = [_delegate egoRefreshTableHeaderDataSourceIsLoading:self];
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}
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if (scrollView.contentOffset.y <= - 65.0f && !_loading) {
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if ([_delegate respondsToSelector:@selector(egoRefreshTableHeaderDidTriggerRefresh:)]) {
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[_delegate egoRefreshTableHeaderDidTriggerRefresh:self];
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}
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[self setState:EGOOPullRefreshLoading];
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[UIView beginAnimations:nil context:NULL];
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[UIView setAnimationDuration:0.2];
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scrollView.contentInset = UIEdgeInsetsMake(60.0f, 0.0f, 0.0f, 0.0f);
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[UIView commitAnimations];
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}
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}
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- (void)egoRefreshScrollViewDataSourceDidFinishedLoading:(UIScrollView *)scrollView {
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[UIView beginAnimations:nil context:NULL];
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[UIView setAnimationDuration:.3];
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[scrollView setContentInset:UIEdgeInsetsMake(0.0f, 0.0f, 0.0f, 0.0f)];
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[UIView commitAnimations];
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[self setState:EGOOPullRefreshNormal];
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}
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#pragma mark -
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#pragma mark Dealloc
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- (void)dealloc {
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_delegate=nil;
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_activityView = nil;
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_statusLabel = nil;
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_arrowImage = nil;
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_lastUpdatedLabel = nil;
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[super dealloc];
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}
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@end
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