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iOS在很多場景下可以使用的帶箭頭的View

編輯：IOS開發綜合

效果圖1.1
效果圖1.2

已經封裝好, 點我下載、好用就Star一下 Thanks

創建繼承於UIView的視圖 .h文件

// backGoundView
@property (nonatomic, strong) UIView  * _Nonnull backGoundView;
// titles
@property (nonatomic, strong) NSArray * _Nonnull dataArray;
// images
@property (nonatomic, strong) NSArray * _Nonnull images;
// height
@property (nonatomic, assign) CGFloat row_height;
// font
@property (nonatomic, assign) CGFloat fontSize;
// textColor
@property (nonatomic, strong) UIColor * _Nonnull titleTextColor;
// delegate
@property (nonatomic, assign) id  _Nonnull delegate;
// 初始化方法
- (instancetype _Nonnull)initWithOrigin:(CGPoint) origin
                         Width:(CGFloat) width
                        Height:(CGFloat) height
                          Type:(XTDirectionType)type
                         Color:( UIColor * _Nonnull ) color;
- (void)popView;

.m 實現部分

定義用到的宏

#define ScreenWidth [UIScreen mainScreen].bounds.size.width
#define ScreenHeight [UIScreen mainScreen].bounds.size.height
#define Length 5
#define Length2 15

@property (nonatomic, assign) CGPoint origin;                    // 箭頭位置
@property (nonatomic, assign) CGFloat height;                    // 視圖的高度
@property (nonatomic, assign) CGFloat width;                     // 視圖的寬度
@property (nonatomic, assign) XTDirectionType type;              // 箭頭位置類型
@property (nonatomic, strong) UITableView *tableView;            // 填充的tableview

自定義初始化方法

- (instancetype)initWithOrigin:(CGPoint)origin Width:(CGFloat)width Height:(CGFloat)height Type:(XTDirectionType)type Color:(UIColor *)color
{

    self = [super initWithFrame:CGRectMake(0, 0, ScreenWidth, ScreenHeight)];
    if (self) {
        self.backgroundColor = [UIColor clearColor];
        self.origin = origin;
        self.width = width;
        self.height = height;
        self.type = type;
        self.backGoundView = [[UIView alloc] initWithFrame:CGRectMake(origin.x, origin.y, width, height)];
        self.backGoundView.backgroundColor = color;
        [self addSubview:self.backGoundView];
        [self.backGoundView addSubview:self.tableView];
    }
    return self;
}

drawRect

#pragma mark - drawRect
- (void)drawRect:(CGRect)rect {
    // Drawing code

    CGContextRef context = UIGraphicsGetCurrentContext();

    switch (self.type) {
        case XTTypeOfUpLeft:
        case XTTypeOfUpCenter:
        case XTTypeOfUpRight:{
            {
                CGFloat startX = self.origin.x;
                CGFloat startY = self.origin.y;
                CGContextMoveToPoint(context, startX, startY);
                CGContextAddLineToPoint(context, startX + Length, startY + Length);
                CGContextAddLineToPoint(context, startX - Length, startY + Length);
            }
            break;
        }
        case XTTypeOfDownLeft:
        case XTTypeOfDownCenter:
        case XTTypeOfDownRight: {
            {
                CGFloat startX = self.origin.x;
                CGFloat startY = self.origin.y;
                CGContextMoveToPoint(context, startX, startY);
                CGContextAddLineToPoint(context, startX - Length, startY - Length);
                CGContextAddLineToPoint(context, startX + Length, startY - Length);
            }
            break;
        }
        case XTTypeOfLeftUp:
        case XTTypeOfLeftCenter:
        case XTTypeOfLeftDown: {
            {
                CGFloat startX = self.origin.x;
                CGFloat startY = self.origin.y;
                CGContextMoveToPoint(context, startX, startY);
                CGContextAddLineToPoint(context, startX + Length, startY - Length);
                CGContextAddLineToPoint(context, startX + Length, startY + Length);
            }
            break;
        }
        case XTTypeOfRightUp:
        case XTTypeOfRightCenter:
        case XTTypeOfRightDown: {
            {
                CGFloat startX = self.origin.x;
                CGFloat startY = self.origin.y;
                CGContextMoveToPoint(context, startX, startY);
                CGContextAddLineToPoint(context, startX - Length, startY - Length);
                CGContextAddLineToPoint(context, startX - Length, startY + Length);
            }
            break;
        }
    }
    CGContextClosePath(context);
    [self.backGoundView.backgroundColor setFill];
    [self.backgroundColor setStroke];
    CGContextDrawPath(context, kCGPathFillStroke);
}

彈出視圖

#pragma mark - popView
- (void)popView
{
    // 同步顯示 子控件(views)和(self)
    NSArray *results = [self.backGoundView subviews];
    for (UIView *view in results) {
        [view setHidden:YES];
    }
    UIWindow *windowView = [UIApplication sharedApplication].keyWindow;
    [windowView addSubview:self];
    switch (self.type) {
        case XTTypeOfUpLeft: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x, self.origin.y + Length, 0, 0);
                CGFloat origin_x = self.origin.x - Length2;
                CGFloat origin_y = self.origin.y + Length;
                CGFloat size_width = self.width;
                CGFloat size_height = self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
        case XTTypeOfUpCenter: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x, self.origin.y + Length, 0, 0);
                CGFloat origin_x = self.origin.x - self.width / 2;
                CGFloat origin_y = self.origin.y + Length;
                CGFloat size_width = self.width;
                CGFloat size_height = self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
        case XTTypeOfUpRight: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x, self.origin.y + Length, 0, 0);
                CGFloat origin_x = self.origin.x + Length2;
                CGFloat origin_y = self.origin.y + Length;
                CGFloat size_width = -self.width;
                CGFloat size_height = self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
        case XTTypeOfDownLeft: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x, self.origin.y - Length, 0, 0);
                CGFloat origin_x = self.origin.x - Length2;
                CGFloat origin_y = self.origin.y - Length;
                CGFloat size_width = self.width;
                CGFloat size_height = -self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
        case XTTypeOfDownCenter: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x, self.origin.y - Length, 0, 0);
                CGFloat origin_x = self.origin.x - self.width / 2;
                CGFloat origin_y = self.origin.y - Length;
                CGFloat size_width = self.width;
                CGFloat size_height = -self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
        case XTTypeOfDownRight: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x, self.origin.y - Length, 0, 0);
                CGFloat origin_x = self.origin.x-self.width + Length2;
                CGFloat origin_y = self.origin.y - Length;
                CGFloat size_width = self.width;
                CGFloat size_height = -self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }

        case XTTypeOfLeftUp: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x + Length, self.origin.y, 0, 0);
                CGFloat origin_x = self.origin.x + Length;
                CGFloat origin_y = self.origin.y - Length2;
                CGFloat size_width = self.width;
                CGFloat size_height = self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
        case XTTypeOfLeftCenter: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x + Length, self.origin.y, 0, 0);
                CGFloat origin_x = self.origin.x + Length;
                CGFloat origin_y = self.origin.y - self.height / 2;
                CGFloat size_width = self.width;
                CGFloat size_height = self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
        case XTTypeOfLeftDown: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x + Length, self.origin.y, 0, 0);
                CGFloat origin_x = self.origin.x + Length;
                CGFloat origin_y = self.origin.y - self.height + Length2;
                CGFloat size_width = self.width;
                CGFloat size_height = self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
        case XTTypeOfRightUp: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x - Length, self.origin.y, 0, 0);
                CGFloat origin_x = self.origin.x - Length;
                CGFloat origin_y = self.origin.y - Length2;
                CGFloat size_width = -self.width;
                CGFloat size_height = self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
        case XTTypeOfRightCenter: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x - Length, self.origin.y, 0, 0);
                CGFloat origin_x = self.origin.x - Length;
                CGFloat origin_y = self.origin.y - self.height / 2;
                CGFloat size_width = -self.width;
                CGFloat size_height = self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
        case XTTypeOfRightDown: {
            {
                self.backGoundView.frame = CGRectMake(self.origin.x - Length, self.origin.y, 0, 0);
                CGFloat origin_x = self.origin.x - Length;
                CGFloat origin_y = self.origin.y - self.height + Length2;
                CGFloat size_width = -self.width;
                CGFloat size_height = self.height;
                [self startAnimateView_x:origin_x _y:origin_y origin_width:size_width origin_height:size_height];
            }
            break;
        }
    }
}

#pragma mark -
- (void)startAnimateView_x:(CGFloat) x
                        _y:(CGFloat) y
              origin_width:(CGFloat) width
             origin_height:(CGFloat) height
{
    [UIView animateWithDuration:0.25 animations:^{
        self.backGoundView.frame = CGRectMake(x, y, width, height);
    }completion:^(BOOL finished) {
        NSArray *results = [self.backGoundView subviews];
        for (UIView *view in results) {
            [view setHidden:NO];
        }
    }];
}

點擊空白處回收

#pragma mark -
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    if (![[touches anyObject].view isEqual:self.backGoundView]) {
        [self dismiss];
    }   
}

#pragma mark -
- (void)dismiss
{
    /**
     *  刪除 在backGroundView 上的子控件
     */
    NSArray *results = [self.backGoundView subviews];
    for (UIView *view in results) {
        [view removeFromSuperview];   
    }
    [UIView animateWithDuration:0.25 animations:^{
        //
        self.backGoundView.frame = CGRectMake(self.origin.x, self.origin.y, 0, 0);
    } completion:^(BOOL finished) {
        //
        [self removeFromSuperview];
    }];
}

內部的tableview

#pragma mark -
- (UITableView *)tableView
{
    if (!_tableView) {
        _tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, self.backGoundView.frame.size.width - 5, self.backGoundView.frame.size.height) style:UITableViewStylePlain];
        _tableView.dataSource = self;
        _tableView.backgroundColor = [UIColor clearColor];
        _tableView.delegate = self;
    }
    return _tableView;
}
#pragma mark -
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.dataArray.count;
}
#pragma mark -
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (self.row_height == 0) {
        return 44;
    }else{
        return self.row_height;
    }
}
#pragma mark -
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{

    static NSString *cellIdentifier = @"cellIdentifier2";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
    if (!cell) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellIdentifier];
    }
    cell.backgroundColor = [UIColor clearColor];
    cell.imageView.image = [UIImage imageNamed:self.images[indexPath.row]];
    cell.textLabel.text = self.dataArray[indexPath.row];
    cell.textLabel.font = [UIFont systemFontOfSize:self.fontSize];
    cell.textLabel.textColor = self.titleTextColor;
    return cell;
}
// 想要實現點擊進行其他操作, 這裡用到了協議
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (self.delegate && [self.delegate respondsToSelector:@selector(selectIndexPathRow:)]) {
        [self.delegate selectIndexPathRow:indexPath.row];
    }
}

在.h文件還要聲明一份協議

@protocol selectIndexPathDelegate 
- (void)selectIndexPathRow:(NSInteger )index;
@end

使用

@interface ViewController ()

你可以在btn的點擊方法裡這樣寫

     // 支持多種類型
     /**
     XTTypeOfUpLeft,     // 上左
     XTTypeOfUpCenter,   // 上中
     XTTypeOfUpRight,    // 上右

     XTTypeOfDownLeft,   // 下左
     XTTypeOfDownCenter, // 下中
     XTTypeOfDownRight,  // 下右

     XTTypeOfLeftUp,     // 左上
     XTTypeOfLeftCenter, // 左中
     XTTypeOfLeftDown,   // 左下

     XTTypeOfRightUp,    // 右上
     XTTypeOfRightCenter,// 右中
     XTTypeOfRightDown,  // 右下
     */

    CGPoint point = CGPointMake(_customBtn.center.x,_customBtn.frame.origin.y + 64);
    XTPopView *view1 = [[XTPopView alloc] initWithOrigin:point Width:130 Height:40 * 4 Type:XTTypeOfUpRight Color:[UIColor colorWithRed:0.2737 green:0.2737 blue:0.2737 alpha:1.0]];
    view1.dataArray = @[@"發起群聊",@"添加朋友", @"掃一掃", @"收付款"];
    view1.images = @[@"發起群聊",@"添加朋友", @"掃一掃", @"付款"];
    view1.fontSize = 13;
    view1.row_height = 40;
    view1.titleTextColor = [UIColor whiteColor];
    view1.delegate = self;
    [view1 popView];

想要使用點擊方法只要實現協議的方法就可以了

- (void)selectIndexPathRow:(NSInteger)index
{
    switch (index) {
        case 0:
        {
            NSLog(@"Click 0 ......");
        }
            break;
        case 1:
        {
            NSLog(@"Clikc 1 ......");
        }
            break;
        case 2:
        {
            NSLog(@"Clikc 2 ......");
        }
            break;
        case 3:
        {
            NSLog(@"Clikc 3 ......");
        }
            break;
        default:
            break;
    }
}

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