//contentSize、contentInset和contentOffset 是 scrollView三個基本的屬性。 // 滾動 self.ScrollView.contentSize =self.imageview.frame.size; //偏移X =0 Y =-74 向下偏移 self.ScrollView.contentOffset =CGPointMake(0,-74); // 邊距 距離頂部74 左 0 下40 右0 self.ScrollView.contentInset = UIEdgeInsetsMake(74, 0, 40, 0);//不顯示水平滾動條self.ScrollView.showsHorizontalScrollIndicator =NO;//不顯示垂直滾動條self.ScrollView.showsVerticalScrollIndicator =NO; //控制器 實現 UIScrollViewDelegate 代理 @interface ViewController () <UIScrollViewDelegate> //只要滾動了就會觸發 - (void)scrollViewDidScroll:(UIScrollView *)scrollView; { // NSLog(@" scrollViewDidScroll");NSLog(@"ContentOffset x is %f,yis %f",scrollView.contentOffset.x,scrollView.contentOffset.y); } //開始拖拽視圖 - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView; {NSLog(@"scrollViewWillBeginDragging"); } //完成拖拽 - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate; {NSLog(@"scrollViewDidEndDragging"); } //將開始降速時 - (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView; {NSLog(@"scrollViewWillBeginDecelerating"); }//減速停止了時執行，手觸摸時執行執行 - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView; {NSLog(@"scrollViewDidEndDecelerating"); } //滾動動畫停止時執行,代碼改變時出發,也就是setContentOffset改變時 - (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView; {NSLog(@"scrollViewDidEndScrollingAnimation"); } //設置放大縮小的視圖，要是uiscrollview的subview - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView; {//返回要縮放的子控件，每次只能縮放一個子控件return imageView; } //完成放大縮小時調用 - (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale; {NSLog(@"完成放大縮小時調用"); }//如果你不是完全滾動到滾軸視圖的頂部，你可以輕點狀態欄，那個可視的滾軸視圖會一直滾動到頂部，那是默認行為，你可以通過該方法返回NO來關閉它 - (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView; {NSLog(@"scrollViewShouldScrollToTop");return YES; }- (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView; {NSLog(@"scrollViewDidScrollToTop"); } -(void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView:(UIView *)view {NSLog(@"用戶開始縮放時調用！！scrollViewWillBeginZooming"); } -(void)scrollViewDidZoom:(UIScrollView *)scrollView {NSLog(@"用戶正在縮放調用！scrollViewDidZoom"); }

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轉載于:https://www.cnblogs.com/zzgt/p/5126428.html

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