201901 - 育灵童技术部博客空间

 /*
 ＊点击事件block快＊
 */
@property(nonatomic,copy)SPPopViewBlock sppopBlcok;
/*
 ＊按键数组＊
 */
@property(nonatomic,strong)NSMutableArray*cells;
/*
 ＊按键中心点＊
 */
@property(nonatomic,assign)CGPoint originalCenter;
/*
 ＊初始化＊
 */
-(instancetype)initWithTotalNumber:(NSInteger)number center:(CGPoint)point cellClock:(SPPopViewBlock)block;
/*
 ＊弹出cell＊
 */
-(void)popCell;

初始化方法，初始化当中我们需要定义收藏夹数量，收藏按键中心点位置，一句将用户按键行为的block块

 -(instancetype)initWithTotalNumber:(NSInteger)number center:(CGPoint )point cellClock:(SPPopViewBlock)block{
    if(self=[super init]){
        self.frame=SPFrame(0, 0, SPScreen_W, SPScreen_H);
        self.sppopBlcok = block;
        self.originalCenter=point;
        self.backgroundColor=[UIColor colorWithWhite:0 alpha:0]; NSArray*array=@[@"find_collection_study",@"find_collection_story",@"find_collection_music",@"find_collection_english"];
        self.cells=[NSMutableArray array];
        for (int i=0; i<number; i++) { UIButton*button=[[UIButton alloc]initWithFrame:SPFrame(0, 0, 40, 40)]; button.center=point; button.layer.cornerRadius=20; button.layer.masksToBounds=YES; button.tag=i+1; [button setBackgroundImage:[UIImage imageNamed:array[i]] forState:UIControlStateNormal]; [self addSubview:button]; [button addTarget:self action:@selector(sppopViewButtonEvent:) forControlEvents:UIControlEventTouchUpInside]; [self.cells addObject:button]; } } return self; }

定义完成后，我们需要来编辑4个圆形按键的行为了

 -(void)sppopViewButtonEvent:(UIButton*)sender{
    self.sppopBlcok(sender.tag);
    for (int i=0; i<self.cells.count; i++) { UIButton*button=self.cells[i]; [self cellIsPop:NO withCellTag:i cell:button]; } }

4个圆形按键从出现到消失需要写一个简单的动画效果来过渡一下

 -(void)cellIsPop:(BOOL)isPop withCellTag:(NSInteger)tag cell:(UIButton*)button{
    if(isPop){
   [UIView animateWithDuration:0.5 animations:^{
       CGFloat y=button.center.y-sin(M_PI/4+tag*M_PI/2)*50;
       CGFloat x=button.center.x-cos(M_PI/4+tag*M_PI/2)*50;
       button.center=SPPoint(x, y);
   }];
    }
    else{
       [UIView animateWithDuration:0.5 animations:^{
           button.center=self.originalCenter;
       } completion:^(BOOL finished) {
           [self removeFromSuperview];
       }];
    }
    }

点击收藏按键弹出4个圆形按键方法

 -(void)popCell{
    for (int i=0; i<self.cells.count; i++) { UIButton*button=self.cells[i]; [self cellIsPop:YES withCellTag:i cell:button]; } }

点击界面其他位置，将4个圆形按键收缩起来的方法

 -(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
    for (int i=0; i<self.cells.count; i++) { UIButton*button=self.cells[i]; [self cellIsPop:NO withCellTag:i cell:button]; } }

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