// PublishView.m
// UIImage+ImageEffects.h 蘋果蒙化圖片的分類 pop.h彈跳動畫框架 EJExtension.h模型轉(zhuǎn)換框架
// ComposeModel 用于設(shè)置按鈕文字與圖片的模型，在本地設(shè)置plist文件保存image（按鈕圖片）和text（按鈕文字）

#import "PublishView.h"
#import "BSVerticalButton.h"
#import "UIImage+ImageEffects.h"
#import "pop.h"
#import "MJExtension.h"
#import "ComposeModel.h"

@interface PublishView ()

/** 取消按鈕 */
@property (nonatomic, weak) UIButton *cancelButton;

@end

@implementation PublishView

/** 全局 window_ */
static UIWindow *window_;

/** 顯示發(fā)布view */
+ (void)show{
  // 添加一個獨立的window是為了隔離點擊事件
  window_ = [[UIWindow alloc]initWithFrame:[UIScreen mainScreen].bounds];
  
  window_.hidden = NO;
  
  PublishView *publish = [[PublishView alloc]init];
  
  publish.frame = window_.bounds;
  
  [window_ addSubview:publish];
}

- (instancetype)initWithFrame:(CGRect)frame
{
  self = [super initWithFrame:frame];
  if (self) {
    
    UIImageView *imageView = [[UIImageView alloc]initWithImage:[self getEffectImage]];
    [self addSubview:imageView];

    [self setupUI];
  }
  return self;
}

- (void)setupUI{
  
  //這里用自定義的 window 是為了隔絕點擊事件 不讓點擊事件傳到后面控制器的view上去
 
  // 按鈕彈跳動畫時讓view本身不能點擊
  self.userInteractionEnabled = NO;
  
  // 從plis文件獲得一個模型數(shù)組
  NSArray *buttonModelArray = [ComposeModel mj_objectArrayWithFilename:@"buttonImage.plist"];
  
  CGFloat button_w = 72;
  CGFloat button_h = button_w + 30;
  NSInteger maxLoc = 3; //最多列數(shù)
  
  //按鈕彈跳動畫停止后的起始 y 值
  CGFloat buttonEnd_y = ([[UIScreen mainScreen] bounds].size.height - button_h * 2) / 2;
  
  //最開始在屏幕外上方的的起始 y 值
  CGFloat buttonBegin_y = buttonEnd_y - [[UIScreen mainScreen] bounds].size.height;
  
  //按鈕的起始間隙值
  CGFloat buttonStartMargin = 20;
  
  //中間的一個按鈕相對于兩邊按鈕的間隙
  CGFloat buttonMargin = ([[UIScreen mainScreen] bounds].size.width - buttonStartMargin * 2 - button_w * maxLoc) / (maxLoc - 1);
  
  for (NSInteger i = 0; i < buttonModelArray.count; ++i) {
    
    // BSVerticalButton 自定義的垂直排布按鈕
    BSVerticalButton *button = [[BSVerticalButton alloc]init];
    
    button.tag = i;
    
    [self addSubview:button];
    
    [button addTarget:self action:@selector(buttonClick:) forControlEvents:UIControlEventTouchUpInside];
    
    ComposeModel *composeModel = buttonModelArray[i];
    
    [button setImage:[UIImage imageNamed:composeModel.image] forState:UIControlStateNormal];
    
    [button setTitle:composeModel.text forState:UIControlStateNormal];
    
    [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    
    button.titleLabel.font = [UIFont systemFontOfSize:14];
    
    NSInteger loc = i % maxLoc;  //例號
    NSInteger row = i / maxLoc;  //行號
    
    CGFloat button_x = buttonStartMargin + loc * (button_w + buttonMargin);
    CGFloat buttonBginAnimation_y = buttonBegin_y + (button_h * row); //彈跳前的 y 值
    CGFloat buttonEndAnimation_y = buttonEnd_y + (button_h * row); //彈跳后的 y 值
    
    //創(chuàng)建pop彈簧動畫對象
    POPSpringAnimation *animation = [POPSpringAnimation animationWithPropertyNamed:kPOPViewFrame];
    
    animation.beginTime = CACurrentMediaTime() + i * 0.1; //動畫開始時間
    
    animation.springBounciness = 10; //彈簧增強 0-20
    
    animation.springSpeed = 8; //彈簧速度 0-20
    
    animation.fromValue = [NSValue valueWithCGRect:CGRectMake(button_x, buttonBginAnimation_y, button_w, button_h)];
    
    animation.toValue = [NSValue valueWithCGRect:CGRectMake(button_x, buttonEndAnimation_y, button_w, button_h)];
    
    //中間的按鈕添加動畫
    [button pop_addAnimation:animation forKey:nil];
  }
  
  // 添加品牌logo
  UIImageView *topImageView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"compose_slogan"]];
  topImageView.center = CGPointMake([[UIScreen mainScreen] bounds].size.width * 0.5, [[UIScreen mainScreen] bounds].size.height * 0.2 - [[UIScreen mainScreen] bounds].size.height);
  
  [self addSubview:topImageView];
  
  //  POPBasicAnimation  基本的動畫
  //  POPSpringAnimation  彈簧動畫
  //  POPDecayAnimation  減速動畫
  //  POPCustomAnimation  自定義動畫
  
  //創(chuàng)建pop彈簧動畫對象
  POPSpringAnimation *animation = [POPSpringAnimation animationWithPropertyNamed:kPOPViewCenter];
  
  animation.beginTime = CACurrentMediaTime() + buttonModelArray.count * 0.001; //動畫開始時間
  
  animation.springBounciness = 10; //彈簧增強 0-20
  
  animation.springSpeed = 10; //彈簧速度 0-20
  
  CGFloat center_x = [[UIScreen mainScreen] bounds].size.width * 0.5;
  CGFloat endCenter_y = [[UIScreen mainScreen] bounds].size.height * 0.2;
  CGFloat beginCenter_y = endCenter_y - [[UIScreen mainScreen] bounds].size.height;
  
  animation.fromValue = [NSValue valueWithCGPoint:CGPointMake(center_x, beginCenter_y)];
  
  animation.toValue = [NSValue valueWithCGPoint:CGPointMake(center_x, endCenter_y)];
  
  animation.completionBlock = ^(POPAnimation *anim, BOOL finished){
    NSLog(@"-------這里可以寫動畫結(jié)束后所要執(zhí)行的代碼...");
    // view本身開啟交互
    self.userInteractionEnabled = YES;
  };
  
  //給頂部的圖片添加動畫
  [topImageView pop_addAnimation:animation forKey:nil];
  // 底部取消按鈕
  UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeSystem];
  [cancelButton setTitle:@"取 消" forState:UIControlStateNormal];
  cancelButton.titleLabel.font = [UIFont systemFontOfSize:15];
  [cancelButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
  [cancelButton setBackgroundColor:[UIColor whiteColor]];
  [cancelButton addTarget:self action:@selector(cancelButtonClick:) forControlEvents:UIControlEventTouchUpInside];
  [self addSubview:cancelButton];
  self.cancelButton = cancelButton;
}

- (void)cancelButtonClick:(UIButton *)button{
  
  // 退出時執(zhí)行動畫 方法的參數(shù)block傳空
  [self animationWithBlock:nil];
}

- (void)layoutSubviews{

  [super layoutSubviews];

  // 取消按鈕位置大小
  CGPoint center = self.cancelButton.center;
  center.x = self.center.x;
  self.cancelButton.center = center;
  CGRect frame = self.cancelButton.frame;
  frame.origin.y = self.frame.size.height * 0.85;
  frame.size = CGSizeMake(200, 35);
  self.cancelButton.frame = frame;
}

- (void)buttonClick:(UIButton *)button{
  
  [self animationWithBlock:^{
    switch (button.tag) {
      case 0:
        NSLog(@"發(fā)視頻");
        break;
      case 1:
        NSLog(@"發(fā)圖片");
        break;
      case 2:{
        
        NSLog(@"發(fā)段子");
      }
        break;
      case 3:
        NSLog(@"發(fā)聲音");
        break;
      case 4:
        NSLog(@"審貼子");
        break;
      case 5:
        NSLog(@"離線下載");
        break;
        
      default:
        break;
    }
  }];
  
}

/** 退出時與點出了某個按鈕時執(zhí)行的彈跳動畫后銷毀 window_ 移除 這個蒙板 view ,如果block參數(shù)completionBlock有值先銷毀window_后再執(zhí)行這個block里的代碼塊 */
- (void)animationWithBlock:(void (^) ())completionBlock{
  
  NSLog(@"----%@\n",self.subviews);
  
  //退出的時候這里用自定義的 window 是為了隔絕點擊事件 不讓點擊事件傳到后面控制器的view上去
  // view本身不能點
  self.userInteractionEnabled = NO;

  // 選移除取消按鈕
  [self.cancelButton removeFromSuperview];
  
  for (NSInteger i = 1; i < self.subviews.count; ++i) {
  
    UIView *view = self.subviews[i];
    
    //創(chuàng)建pop基本動畫對象
    POPBasicAnimation *animation = [POPBasicAnimation animationWithPropertyNamed:kPOPViewCenter];
    //    POPSpringAnimation *animation = [POPSpringAnimation animationWithPropertyNamed:kPOPViewCenter];
    
    animation.beginTime = CACurrentMediaTime() + (i-1) * 0.1; //動畫開始時間
    
    // 如果用這個基類 POPBasicAnimation 動畫的執(zhí)行節(jié)奏(一開始很慢, 后面很快)
    animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
    
    CGPoint center = view.center; //取出中心點
    
    animation.toValue = [NSValue valueWithCGPoint:CGPointMake(center.x , center.y + [[UIScreen mainScreen] bounds].size.height)];
    
    if (i == self.subviews.count-1) { //說明是最后一個 view在做動畫,就讓執(zhí)行結(jié)束的 block
      // 動畫結(jié)束時調(diào)用的 block
      animation.completionBlock = ^(POPAnimation *anim, BOOL finished){
      
        NSLog(@"取消時 這里可以寫動畫結(jié)束后所要執(zhí)行的代碼...");
        
        [self removeFromSuperview];
        
        window_ = nil; //銷毀自定義的 window
    
        !completionBlock ? : completionBlock();
      };
    }
    //給頂部的圖片添加動畫
    [view pop_addAnimation:animation forKey:nil];
  }
}

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
  
  [self animationWithBlock:nil];
}

// 獲得一個磨紗蒙板 image 圖片
- (UIImage *)getEffectImage{
  UIWindow *window = [UIApplication sharedApplication].keyWindow; //獲取當前 window
  UIGraphicsBeginImageContext(window.size); //開啟window大小的圖形上下文
  CGContextRef ref = UIGraphicsGetCurrentContext(); //開啟圖形上下文
  [window.layer renderInContext:ref]; //把window圖層 渲染到圖形上下文當中
  UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); //獲取圖片
  UIGraphicsEndImageContext(); //關(guān)閉圖形上下文
  image = [image applyLightEffect]; //調(diào)用 image 分類方法 使圖片調(diào)成蒙板狀態(tài)
  return image;
}

@end

#import "BSVerticalButton.h"

@implementation BSVerticalButton

- (instancetype)initWithFrame:(CGRect)frame
{
  self = [super initWithFrame:frame];
  if (self) {
    [self setupUI];
  }
  return self;
}

- (void)awakeFromNib{

  [super awakeFromNib];
  
  [self setupUI];
}


- (void)setupUI{

  self.titleLabel.textAlignment = NSTextAlignmentCenter;

}

- (void)layoutSubviews{

  [super layoutSubviews];
  
  //按鈕內(nèi)部圖片 frame
  CGRect imageViewFrame = self.imageView.frame;
  imageViewFrame.origin.x = 0;
  imageViewFrame.origin.y = 0;
  imageViewFrame.size.width = self.bounds.size.width;
  imageViewFrame.size.height = self.bounds.size.width;
  self.imageView.frame = imageViewFrame;
  
  //按鈕內(nèi)部label frame
  CGRect titleLabelFrame = self.titleLabel.frame;
  titleLabelFrame.origin.x = 0;
  titleLabelFrame.origin.y = self.imageView.frame.size.height + 10;
  titleLabelFrame.size.width = self.bounds.size.width;
  self.titleLabel.frame = titleLabelFrame;
  
  //按鈕自身大小
  CGRect buttonBounds = self.bounds;
  buttonBounds.size.width = self.imageView.frame.size.width;
  buttonBounds.size.height = self.imageView.bounds.size.height + self.titleLabel.bounds.size.height + 10;
  self.bounds = buttonBounds;
}
@end