UIScrollViewDelegate相關方法

2022-08-24 00:48:17 字數 1539 閱讀 7758

uiscrollviewdelegate

- (void)scrollviewdidscroll:(uiscrollview *)scrollview;//scrollview 滾動的時候呼叫該方法,任何 offset 值改變都會呼叫該方法.

- (void)scrollviewdidzoom:(uiscrollview *)scrollview;//縮放的時候呼叫

- (void)scrollviewwillbegindragging:(uiscrollview *)scrollview;//一次有效滾動(只要手指不放開,就算一次有效滾動,呼叫一次

- (void)scrollviewwillenddragging:(uiscrollview *)scrollview withvelocity:(cgpoint)velocity targetcontentoffset:(inout cgpoint *)targetcontentoffset;//一次有效滾動,手指鬆開時呼叫一次

- (void)scrollviewdidenddragging:(uiscrollview *)scrollview willdecelerate:(bool)decelerate;//一次有效滾動,手指離開螢幕時執行一次(decelerate指手指放開時螢幕是否繼續按慣性滾動)

- (void)scrollviewwillbegindecelerating:(uiscrollview *)scrollview;//滑動將要減速

- (void)scrollviewdidenddecelerating:(uiscrollview *)scrollview;//滾動停止

- (void)scrollviewdidendscrollinganimation:(uiscrollview *)scrollview;//滾動檢視動畫完成後呼叫

- (uiview *)viewforzoominginscrollview:(uiscrollview *)scrollview;//縮放檢視

- (void)scrollviewwillbeginzooming:(uiscrollview *)scrollview withview:(nullable uiview *)view;//檢視將要縮放(一次有效縮放只執行一次)

- (void)scrollviewdidendzooming:(uiscrollview *)scrollview withview:(nullable uiview *)view atscale:(cgfloat)scale;//檢視縮放結束

- (bool)scrollviewshouldscrolltotop:(uiscrollview *)scrollview;//使用者點選狀態列時,是否可以滾動到頂部

- (void)scrollviewdidscrolltotop:(uiscrollview *)scrollview; //滾動到頂部時呼叫該方法

uiscrollviewaccessibilitydelegate

- (nsstring *)accessibilityscrollstatusforscrollview:(uiscrollview *)scrollview;//檢視滾動的時候返回乙個自定義的字串

UIScrollViewDelegate 方法比較

end drag 拖 decelerate 減速 開始拖拽時呼叫 void scrollviewwillbegindragging uiscrollview scrollview 正在滑動時呼叫 void scrollviewdidscroll uiscrollview scrollview 開始拖...

UIScrollViewDelegate 方法註解

參考自 scrollview滾動時,就呼叫該方法。任何offset值改變都呼叫該方法。即滾動過程中,呼叫多次 void scrollviewdidscroll uiscrollview scrollview 當scrollview縮放時,呼叫該方法。在縮放過程中,回多次呼叫 void scrollv...

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