ios自定義水平滾動條、進度條，繼承uiview，可點選軌道、滑動滑塊互動。
先看一下效果圖：
簡單說一下邏輯，新建乙個繼承uiview的類，分別給軌道、滑塊新增uitapgesturerecognizer點選、uipangesturerecognizer滑動手勢。獲取偏移量，計算控制項位置，重新整理檢視。
下面貼上核心**：
顯示檢視，在控制器呼叫**：
hwslider *slider = [[hwslider alloc] initwithframe:cgrectmake(10, 50, 300, 75)];
[self.view addsubview:slider];
hwslider：
#import
@inte***ce hwslider : uiview
@property (nonatomic, assign) nsinteger score;
@end
/*** ---------------分割線--------------- ***/
#import "hwslider.h"
#import "uiview+additions.h"
@inte***ce hwslider ()
@property (nonatomic, weak) uiimageview *bubbleimage;
@property (nonatomic, weak) uiimageview *arrowimage;
@property (nonatomic, weak) uilabel *scorelabel;
@property (nonatomic, weak) uilabel *levellable;
@property (nonatomic, weak) uiview *trackview;
@property (nonatomic, weak) uiimageview *thumb;
@end
@implementation hwslider
- (instancetype)initwithframe:(cgrect)frame
return self;}
- (void)setscore:(nsinteger)score
//點選滑動條
- (void)handletap:(uitapgesturerecognizer *)sender
//滑動滑塊
- (void)handlepan:(uipangesturerecognizer *)sender
- (void)reloadviewwiththumbceneterx:(cgfloat)thumbceneterx
else if (_thumb.centerx > self.bounds.size.width - 10)
//更新箭頭位置
_arrowimage.centerx = _thumb.centerx;
//更新氣泡標籤位置（氣泡寬度74，實際內容寬度66）
_bubbleimage.centerx = _thumb.centerx;
if (_bubbleimage.centerx < 33) else if (_bubbleimage.centerx > self.bounds.size.width - 33)
//更新分數標籤位置
_scorelabel.centerx = _bubbleimage.centerx;
//分數，四捨五入取整
_score = round(thumbceneterx / self.bounds.size.width * 10);
//更新標籤內容
_scorelabel.text = [nsstring stringwithformat:@"%ld", _score];
if (_score <= 3) else if (_score <= 5) else if (_score <= 7) else if (_score <= 9) else if (_score == 10) }
@end
demo **鏈結
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本文標題: ios自定義水平滾動條、進度條
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