//
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// CustomIOSAlertView.m
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// CustomIOSAlertView
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//
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// Created by Richard on 20/09/2013.
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// Copyright (c) 2013-2015 Wimagguc.
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//
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// Lincesed under The MIT License (MIT)
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// http://opensource.org/licenses/MIT
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//
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#import "CustomIOSAlertView.h"
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#import <QuartzCore/QuartzCore.h>
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const static CGFloat kCustomIOSAlertViewDefaultButtonHeight = 50;
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const static CGFloat kCustomIOSAlertViewDefaultButtonSpacerHeight = 1;
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const static CGFloat kCustomIOSAlertViewCornerRadius = 7;
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const static CGFloat kCustomIOS7MotionEffectExtent = 10.0;
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@implementation CustomIOSAlertView
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CGFloat buttonHeight = 0;
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CGFloat buttonSpacerHeight = 0;
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CGFloat titleHeight = 50;
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@synthesize parentView, containerView, dialogView, onButtonTouchUpInside;
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@synthesize delegate;
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@synthesize buttonTitles;
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@synthesize useMotionEffects;
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@synthesize closeOnTouchUpOutside;
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- (id)initWithParentView: (UIView *)_parentView
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{
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self = [self init];
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if (_parentView) {
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self.frame = _parentView.frame;
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self.parentView = _parentView;
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}
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return self;
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}
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- (id)init
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{
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self = [super init];
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if (self) {
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self.frame = CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height);
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delegate = self;
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useMotionEffects = false;
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closeOnTouchUpOutside = false;
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buttonTitles = @[@"Close"];
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[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(deviceOrientationDidChange:) name:UIDeviceOrientationDidChangeNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
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}
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return self;
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}
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// Create the dialog view, and animate opening the dialog
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- (void)show
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{
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dialogView = [self createContainerView];
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dialogView.layer.shouldRasterize = YES;
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dialogView.layer.rasterizationScale = [[UIScreen mainScreen] scale];
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self.layer.shouldRasterize = YES;
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self.layer.rasterizationScale = [[UIScreen mainScreen] scale];
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#if (defined(__IPHONE_7_0))
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if (useMotionEffects) {
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[self applyMotionEffects];
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}
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#endif
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self.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0];
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[self addSubview:dialogView];
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// Can be attached to a view or to the top most window
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// Attached to a view:
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if (parentView != NULL) {
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[parentView addSubview:self];
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// Attached to the top most window
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} else {
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// On iOS7, calculate with orientation
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if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_7_1) {
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UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];
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switch (interfaceOrientation) {
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case UIInterfaceOrientationLandscapeLeft:
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self.transform = CGAffineTransformMakeRotation(M_PI * 270.0 / 180.0);
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break;
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case UIInterfaceOrientationLandscapeRight:
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self.transform = CGAffineTransformMakeRotation(M_PI * 90.0 / 180.0);
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break;
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case UIInterfaceOrientationPortraitUpsideDown:
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self.transform = CGAffineTransformMakeRotation(M_PI * 180.0 / 180.0);
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break;
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default:
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break;
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}
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[self setFrame:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
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// On iOS8, just place the dialog in the middle
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} else {
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CGSize screenSize = [self countScreenSize];
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CGSize dialogSize = [self countDialogSize];
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CGSize keyboardSize = CGSizeMake(0, 0);
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dialogView.frame = CGRectMake((screenSize.width - dialogSize.width) / 2, (screenSize.height - keyboardSize.height - dialogSize.height) / 2, dialogSize.width, dialogSize.height);
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}
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[[[[UIApplication sharedApplication] windows] firstObject] addSubview:self];
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}
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dialogView.layer.opacity = 0.5f;
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dialogView.layer.transform = CATransform3DMakeScale(1.3f, 1.3f, 1.0);
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[UIView animateWithDuration:0.2f delay:0.0 options:UIViewAnimationOptionCurveEaseInOut
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animations:^{
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self.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.4f];
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dialogView.layer.opacity = 1.0f;
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dialogView.layer.transform = CATransform3DMakeScale(1, 1, 1);
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}
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completion:NULL
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];
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}
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// Button has been touched
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- (IBAction)customIOS7dialogButtonTouchUpInside:(id)sender
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{
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if (delegate != NULL) {
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//[delegate customIOS7dialogButtonTouchUpInside:self clickedButtonAtIndex:[sender tag]];
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}
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if (onButtonTouchUpInside != NULL) {
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onButtonTouchUpInside(self, (int)[sender tag]);
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}
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}
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// Default button behaviour
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- (void)customIOS7dialogButtonTouchUpInside: (CustomIOSAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
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{
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NSLog(@"Button Clicked! %d, %d", (int)buttonIndex, (int)[alertView tag]);
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[self close];
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}
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// Dialog close animation then cleaning and removing the view from the parent
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- (void)close
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{
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CATransform3D currentTransform = dialogView.layer.transform;
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if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_7_1) {
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CGFloat startRotation = [[dialogView valueForKeyPath:@"layer.transform.rotation.z"] floatValue];
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CATransform3D rotation = CATransform3DMakeRotation(-startRotation + M_PI * 270.0 / 180.0, 0.0f, 0.0f, 0.0f);
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dialogView.layer.transform = CATransform3DConcat(rotation, CATransform3DMakeScale(1, 1, 1));
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}
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dialogView.layer.opacity = 1.0f;
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[UIView animateWithDuration:0.2f delay:0.0 options:UIViewAnimationOptionTransitionNone
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animations:^{
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self.backgroundColor = [UIColor colorWithRed:0.0f green:0.0f blue:0.0f alpha:0.0f];
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dialogView.layer.transform = CATransform3DConcat(currentTransform, CATransform3DMakeScale(0.6f, 0.6f, 1.0));
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dialogView.layer.opacity = 0.0f;
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}
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completion:^(BOOL finished) {
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for (UIView *v in [self subviews]) {
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[v removeFromSuperview];
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}
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[self removeFromSuperview];
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}
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];
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}
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- (void)setSubView: (UIView *)subView
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{
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containerView = subView;
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}
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// Creates the container view here: create the dialog, then add the custom content and buttons
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- (UIView *)createContainerView
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{
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if (containerView == NULL) {
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containerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 300, 150)];
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}
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CGSize screenSize = [self countScreenSize];
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CGSize dialogSize = [self countDialogSize];
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// For the black background
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[self setFrame:CGRectMake(0, 0, screenSize.width, screenSize.height)];
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// This is the dialog's container; we attach the custom content and the buttons to this one
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UIView *dialogContainer = [[UIView alloc] initWithFrame:CGRectMake((screenSize.width - dialogSize.width) / 2, (screenSize.height - dialogSize.height) / 2, dialogSize.width, dialogSize.height)];
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// 添加标题
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UILabel *titleView= [[UILabel alloc] initWithFrame:CGRectMake(0, 0, dialogContainer.bounds.size.width, titleHeight)];
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titleView.text = @"用户协议与隐私政策";
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titleView.textAlignment = NSTextAlignmentCenter;
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[dialogContainer addSubview:titleView];
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// First, we style the dialog to match the iOS7 UIAlertView >>>
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CAGradientLayer *gradient = [CAGradientLayer layer];
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gradient.frame = dialogContainer.bounds;
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// gradient.colors = [NSArray arrayWithObjects:
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// (id)[[UIColor colorWithRed:218.0/255.0 green:218.0/255.0 blue:218.0/255.0 alpha:1.0f] CGColor],
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// (id)[[UIColor colorWithRed:233.0/255.0 green:233.0/255.0 blue:233.0/255.0 alpha:1.0f] CGColor],
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// (id)[[UIColor colorWithRed:218.0/255.0 green:218.0/255.0 blue:218.0/255.0 alpha:1.0f] CGColor],
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// nil];
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gradient.colors = [NSArray arrayWithObjects:
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(id)[[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:1.0f] CGColor],
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(id)[[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:1.0f] CGColor],
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(id)[[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:1.0f] CGColor],
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nil];
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CGFloat cornerRadius = kCustomIOSAlertViewCornerRadius;
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gradient.cornerRadius = cornerRadius;
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[dialogContainer.layer insertSublayer:gradient atIndex:0];
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dialogContainer.layer.cornerRadius = cornerRadius;
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dialogContainer.layer.borderColor = [[UIColor colorWithRed:198.0/255.0 green:198.0/255.0 blue:198.0/255.0 alpha:1.0f] CGColor];
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dialogContainer.layer.borderWidth = 1;
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dialogContainer.layer.shadowRadius = cornerRadius + 5;
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dialogContainer.layer.shadowOpacity = 0.1f;
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dialogContainer.layer.shadowOffset = CGSizeMake(0 - (cornerRadius+5)/2, 0 - (cornerRadius+5)/2);
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dialogContainer.layer.shadowColor = [UIColor blackColor].CGColor;
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dialogContainer.layer.shadowPath = [UIBezierPath bezierPathWithRoundedRect:dialogContainer.bounds cornerRadius:dialogContainer.layer.cornerRadius].CGPath;
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// There is a line above the button
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UIView *lineView = [[UIView alloc] initWithFrame:CGRectMake(0, dialogContainer.bounds.size.height - buttonHeight - buttonSpacerHeight, dialogContainer.bounds.size.width, buttonSpacerHeight)];
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lineView.backgroundColor = [UIColor colorWithRed:198.0/255.0 green:198.0/255.0 blue:198.0/255.0 alpha:1.0f];
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[dialogContainer addSubview:lineView];
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// ^^^
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// Add the custom container if there is any
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[dialogContainer addSubview:containerView];
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// Add the buttons too
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[self addButtonsToView:dialogContainer];
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return dialogContainer;
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}
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// Helper function: add buttons to container
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- (void)addButtonsToView: (UIView *)container
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{
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if (buttonTitles==NULL) { return; }
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CGFloat buttonWidth = container.bounds.size.width / [buttonTitles count];
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for (int i=0; i<[buttonTitles count]; i++) {
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UIButton *closeButton = [UIButton buttonWithType:UIButtonTypeCustom];
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[closeButton setFrame:CGRectMake(i * buttonWidth, container.bounds.size.height - buttonHeight, buttonWidth, buttonHeight)];
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[closeButton addTarget:self action:@selector(customIOS7dialogButtonTouchUpInside:) forControlEvents:UIControlEventTouchUpInside];
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[closeButton setTag:i];
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[closeButton setTitle:[buttonTitles objectAtIndex:i] forState:UIControlStateNormal];
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if( i==0)
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{
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[closeButton setTitleColor: [UIColor darkGrayColor] forState:UIControlStateNormal];
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[closeButton setTitleColor: [UIColor lightGrayColor] forState:UIControlStateHighlighted];
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}
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else{
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[closeButton setTitleColor:[UIColor colorWithRed:0.0f green:0.5f blue:1.0f alpha:1.0f] forState:UIControlStateNormal];
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[closeButton setTitleColor:[UIColor colorWithRed:0.2f green:0.2f blue:0.2f alpha:0.5f] forState:UIControlStateHighlighted];
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}
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[closeButton.titleLabel setFont:[UIFont boldSystemFontOfSize:14.0f]];
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closeButton.titleLabel.numberOfLines = 0;
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closeButton.titleLabel.textAlignment = NSTextAlignmentCenter;
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[closeButton.layer setCornerRadius:kCustomIOSAlertViewCornerRadius];
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[container addSubview:closeButton];
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}
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}
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// Helper function: count and return the dialog's size
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- (CGSize)countDialogSize
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{
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CGFloat dialogWidth = containerView.frame.size.width;
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int titleHeight = 50;
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CGFloat dialogHeight = containerView.frame.size.height + buttonHeight + buttonSpacerHeight + titleHeight;
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return CGSizeMake(dialogWidth, dialogHeight);
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}
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// Helper function: count and return the screen's size
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- (CGSize)countScreenSize
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{
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if (buttonTitles!=NULL && [buttonTitles count] > 0) {
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buttonHeight = kCustomIOSAlertViewDefaultButtonHeight;
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buttonSpacerHeight = kCustomIOSAlertViewDefaultButtonSpacerHeight;
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} else {
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buttonHeight = 0;
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buttonSpacerHeight = 0;
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}
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CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;
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CGFloat screenHeight = [UIScreen mainScreen].bounds.size.height;
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// On iOS7, screen width and height doesn't automatically follow orientation
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if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_7_1) {
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UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];
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if (UIInterfaceOrientationIsLandscape(interfaceOrientation)) {
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CGFloat tmp = screenWidth;
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screenWidth = screenHeight;
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screenHeight = tmp;
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}
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}
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return CGSizeMake(screenWidth, screenHeight);
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}
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#if (defined(__IPHONE_7_0))
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// Add motion effects
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- (void)applyMotionEffects {
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if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_6_1) {
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return;
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}
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UIInterpolatingMotionEffect *horizontalEffect = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"center.x"
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type:UIInterpolatingMotionEffectTypeTiltAlongHorizontalAxis];
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horizontalEffect.minimumRelativeValue = @(-kCustomIOS7MotionEffectExtent);
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horizontalEffect.maximumRelativeValue = @( kCustomIOS7MotionEffectExtent);
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UIInterpolatingMotionEffect *verticalEffect = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"center.y"
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type:UIInterpolatingMotionEffectTypeTiltAlongVerticalAxis];
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verticalEffect.minimumRelativeValue = @(-kCustomIOS7MotionEffectExtent);
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verticalEffect.maximumRelativeValue = @( kCustomIOS7MotionEffectExtent);
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UIMotionEffectGroup *motionEffectGroup = [[UIMotionEffectGroup alloc] init];
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motionEffectGroup.motionEffects = @[horizontalEffect, verticalEffect];
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[dialogView addMotionEffect:motionEffectGroup];
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}
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#endif
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- (void)dealloc
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{
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[[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIDeviceOrientationDidChangeNotification object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
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}
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// Rotation changed, on iOS7
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- (void)changeOrientationForIOS7 {
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UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];
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CGFloat startRotation = [[self valueForKeyPath:@"layer.transform.rotation.z"] floatValue];
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CGAffineTransform rotation;
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switch (interfaceOrientation) {
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case UIInterfaceOrientationLandscapeLeft:
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rotation = CGAffineTransformMakeRotation(-startRotation + M_PI * 270.0 / 180.0);
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break;
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case UIInterfaceOrientationLandscapeRight:
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rotation = CGAffineTransformMakeRotation(-startRotation + M_PI * 90.0 / 180.0);
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break;
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case UIInterfaceOrientationPortraitUpsideDown:
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rotation = CGAffineTransformMakeRotation(-startRotation + M_PI * 180.0 / 180.0);
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break;
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default:
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rotation = CGAffineTransformMakeRotation(-startRotation + 0.0);
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break;
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}
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[UIView animateWithDuration:0.2f delay:0.0 options:UIViewAnimationOptionTransitionNone
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animations:^{
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dialogView.transform = rotation;
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}
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completion:nil
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];
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}
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// Rotation changed, on iOS8
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- (void)changeOrientationForIOS8: (NSNotification *)notification {
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CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;
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CGFloat screenHeight = [UIScreen mainScreen].bounds.size.height;
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[UIView animateWithDuration:0.2f delay:0.0 options:UIViewAnimationOptionTransitionNone
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animations:^{
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CGSize dialogSize = [self countDialogSize];
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CGSize keyboardSize = [[[notification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
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self.frame = CGRectMake(0, 0, screenWidth, screenHeight);
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dialogView.frame = CGRectMake((screenWidth - dialogSize.width) / 2, (screenHeight - keyboardSize.height - dialogSize.height) / 2, dialogSize.width, dialogSize.height);
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}
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completion:nil
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];
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}
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// Handle device orientation changes
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- (void)deviceOrientationDidChange: (NSNotification *)notification
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{
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// If dialog is attached to the parent view, it probably wants to handle the orientation change itself
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if (parentView != NULL) {
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return;
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}
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if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_7_1) {
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[self changeOrientationForIOS7];
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} else {
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[self changeOrientationForIOS8:notification];
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}
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}
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// Handle keyboard show/hide changes
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- (void)keyboardWillShow: (NSNotification *)notification
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{
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CGSize screenSize = [self countScreenSize];
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CGSize dialogSize = [self countDialogSize];
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CGSize keyboardSize = [[[notification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
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UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];
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if (UIInterfaceOrientationIsLandscape(interfaceOrientation) && NSFoundationVersionNumber <= NSFoundationVersionNumber_iOS_7_1) {
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CGFloat tmp = keyboardSize.height;
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keyboardSize.height = keyboardSize.width;
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keyboardSize.width = tmp;
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}
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[UIView animateWithDuration:0.2f delay:0.0 options:UIViewAnimationOptionTransitionNone
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animations:^{
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dialogView.frame = CGRectMake((screenSize.width - dialogSize.width) / 2, (screenSize.height - keyboardSize.height - dialogSize.height) / 2, dialogSize.width, dialogSize.height);
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}
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completion:nil
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];
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}
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- (void)keyboardWillHide: (NSNotification *)notification
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{
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CGSize screenSize = [self countScreenSize];
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CGSize dialogSize = [self countDialogSize];
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[UIView animateWithDuration:0.2f delay:0.0 options:UIViewAnimationOptionTransitionNone
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animations:^{
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dialogView.frame = CGRectMake((screenSize.width - dialogSize.width) / 2, (screenSize.height - dialogSize.height) / 2, dialogSize.width, dialogSize.height);
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}
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completion:nil
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];
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}
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- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
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if (!closeOnTouchUpOutside) {
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return;
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}
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UITouch *touch = [touches anyObject];
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if ([touch.view isKindOfClass:[CustomIOSAlertView class]]) {
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[self close];
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}
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}
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@end
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