悬浮可拖动的按钮

SuspendBtn.jpeg SuspendButton.gif

NASuspendButton.h

#import <UIKit/UIKit.h>

@interface NASuspendButton : UIView

/** 单例方式创建 */
+ (instancetype)shareInstance;

/** 普通方式创建 */
+ (instancetype)suspendButton;

/** 展示悬浮按钮 */
- (void)showSuspendButton;

/** 隐藏悬浮按钮 */
- (void)hideSuspendButton;

@end

NASuspendButton.m

#import "NASuspendButton.h"
#import "UIButton+DDYStyle.h"
#import "UIView+DDYExtension.h"

static NASuspendButton *_suspendBtn;

@interface NASuspendButton ()

@property (nonatomic, strong) UIButton *keyBtn;
@property (nonatomic, strong) UIView   *bgView;
@property (nonatomic, strong) UIButton *switchBtn;
@property (nonatomic, strong) UIButton *sayBtn;
@property (nonatomic, strong) UIButton *soundBtn;
@property (nonatomic, strong) UIButton *receiverBtn;
@property (nonatomic, assign) BOOL canHandleClick;

@end

@implementation NASuspendButton

+ (instancetype)allocWithZone:(struct _NSZone *)zone
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        _suspendBtn = [super allocWithZone:zone];
    });
    return _suspendBtn;
}

+ (instancetype)shareInstance
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        _suspendBtn = [[self alloc] init];
    });
    return _suspendBtn;
}

+ (instancetype)suspendButton
{
    return [[self alloc] initWithFrame:[UIScreen mainScreen].bounds];
}

- (instancetype)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame])
    {
        [self setupContentView];
        [self layoutContentView];
        _canHandleClick = YES;
    }
    return self;
}

- (void)setupContentView
{
    _keyBtn = [self btnWithImg:@"home_mac_little" action:@selector(handleKeyBtnClick:)];
    [_keyBtn addTarget:self action:@selector(dragMoving:withEvent:) forControlEvents:UIControlEventTouchDragInside | UIControlEventTouchDragOutside];
    _keyBtn.ddy_y = QNSCREENH/2;
    
    _bgView = [[UIView alloc] initWithFrame:CGRectMake(_keyBtn.ddy_right+10, _keyBtn.ddy_y, 30+40*4, 40)];
    _bgView.hidden = YES;
    
    _switchBtn = [self btnWithImg:@"home_switch" action:@selector(handleSwitchBtnClick:)];
    
    _sayBtn = [self btnWithImg:@"home_say" action:@selector(handleSayBtnClick:)];
    
    _soundBtn = [self btnWithImg:@"home_sound" action:@selector(handleSoundBtnClick:)];
    [_soundBtn setImage:[UIImage imageNamed:@"home_no_sound"] forState:UIControlStateSelected];
    
    _receiverBtn = [self btnWithImg:@"home_receiver" action:@selector(handleReceiverBtnClick:)];
    
    [self addSubview:_keyBtn];
    [self addSubview:_bgView];
    [_bgView addSubview:_switchBtn];
    [_bgView addSubview:_sayBtn];
    [_bgView addSubview:_soundBtn];
    [_bgView addSubview:_receiverBtn];
}

#pragma mark 布局
- (void)layoutContentView
{
    if (_keyBtn.ddy_y <= 25)
    {
        _keyBtn.ddy_y = 25;
    }
    
    if (_keyBtn.ddy_bottom > QNSCREENH)
    {
        _keyBtn.ddy_bottom = QNSCREENH;
    }
    if (_keyBtn.ddy_x<(QNSCREENW/2))
    {
        _keyBtn.ddy_x = 0;
        _bgView.ddy_x = _keyBtn.ddy_right + 10;
    }
    else
    {
        _keyBtn.ddy_right = QNSCREENW;
        _bgView.ddy_right = _keyBtn.ddy_x - 10;
    }
    _bgView.ddy_y = _keyBtn.ddy_y;
}

#pragma mark 展开所有button
- (void)expandButton
{
    _switchBtn.ddy_x = 0;
    _sayBtn.ddy_x = _switchBtn.ddy_right + 10;
    _soundBtn.ddy_x = _sayBtn.ddy_right + 10;
    _receiverBtn.ddy_x = _soundBtn.ddy_right + 10;
    
    _switchBtn.alpha = 1;
    _sayBtn.alpha = 1;
    _soundBtn.alpha = 1;
    _receiverBtn.alpha = 1;
}

#pragma mark 折叠所有button
- (void)foldButton
{
    CGFloat x = (_keyBtn.ddy_x<(QNSCREENW/2)) ? (-50) : (_bgView.ddy_w + 10);
    _switchBtn.ddy_x = x;
    _sayBtn.ddy_x = x;
    _soundBtn.ddy_x = x;
    _receiverBtn.ddy_x = x;
    
    _switchBtn.alpha = 0;
    _sayBtn.alpha = 0;
    _soundBtn.alpha = 0;
    _receiverBtn.alpha = 0;
}

#pragma mark 创建按钮
- (UIButton *)btnWithImg:(NSString *)img action:(SEL)action
{
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(0, 0, 40, 40);
    [button setImage:[UIImage imageNamed:img] forState:UIControlStateNormal];
    [button addTarget:self action:action forControlEvents:UIControlEventTouchUpInside];
    return button;
}

#pragma mark 拖拽
- (void)dragMoving:(UIControl *)control withEvent:event
{
    _canHandleClick = NO;
    if (!_keyBtn.selected)
    {
        control.center = [[[event allTouches] anyObject] locationInView:self];
    }
}

#pragma mark 显示悬浮按钮
- (void)showSuspendButton
{
    [LC_KEYWINDOW addSubview:self];
    self.hidden = NO;
}

#pragma mark 隐藏悬浮按钮
- (void)hideSuspendButton
{
    self.hidden = YES;
    [self removeFromSuperview];
}

#pragma mark - 事件响应
#pragma mark
- (void)handleKeyBtnClick:(UIButton *)sender
{
    
    [self layoutContentView];
    if (_canHandleClick)
    {
        if ((_keyBtn.selected = !_keyBtn.selected))
        {
            _bgView.hidden = NO;
            [self foldButton];
            [UIView animateWithDuration:0.3 animations:^{
                [self expandButton];
            }];
        }
        else
        {
            [self expandButton];
            [UIView animateWithDuration:0.3 animations:^{
                [self foldButton];
            } completion:^(BOOL finished) {
                _bgView.hidden = YES;
            }];
        }
    }
    _canHandleClick = YES;
}

#pragma mark 切换大小屏
- (void)handleSwitchBtnClick:(UIButton *)sender
{
    
}

#pragma mark 语音按钮点击响应
- (void)handleSayBtnClick:(UIButton *)sender
{
    
}

#pragma mark 声音打开或关闭
- (void)handleSoundBtnClick:(UIButton *)sender
{
    
}

#pragma mark
- (void)handleReceiverBtnClick:(UIButton *)sender
{
    
}

#pragma mark 防止响应链中断造成下面按钮不响应
- (id)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
    id hitView = [super hitTest:point withEvent:event];
    if (hitView == self) return nil;
    else return hitView;
}

@end