3
self.refreshControl = [[UIRefreshControl alloc]init];
[self.objDiscussiontopic addSubview:self.refreshControl];
[self.refreshControl addTarget:self action:@selector(refreshTable) forControlEvents:UIControlEventValueChanged];
- (void)refreshTable {
//TODO: refresh your data
[self.refreshControl endRefreshing];
}
這是我用來在我的滾動視圖中添加刷新控制器的代碼。 但是，當我拉下滾動視圖的刷新控制沒有顯示，目標方法也不是所謂的？UIScrollview拉刷新不起作用
我正在尋找這一段時間，但沒有得到任何正確的答案。
一個件事滾動視圖有VFL約束一些像這樣的事情：
//Pin scrolview to Parent View
[VFLConstraint allignSubViewViewHorizentallyWithSubView:self.objDiscussiontopic OverSuperView:[self view]];
[VFLConstraint allignSubViewViewVerticallyWithSubView:self.objDiscussiontopic OverSuperView:[self view] WithTopPading:[CommonFunction convertIphone6ToIphone5:0] AndBotomPading:[CommonFunction convertIphone6ToIphone5:57]];
+ (void)allignSubViewViewHorizentallyWithSubView:(UIView *)subView OverSuperView:(UIView *)superView{
NSDictionary *viewDict= NSDictionaryOfVariableBindings(subView);
[superView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[subView]|" options:0 metrics: 0 views:viewDict]];
}
+ (void)allignSubViewViewVerticallyWithSubView:(UIView *)subView OverSuperView:(UIView *)superView WithTopPading:(float)topPading AndBotomPading:(float)bottomPading{
NSDictionary *viewDict= NSDictionaryOfVariableBindings(subView);
NSDictionary *metrics=[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithFloat:topPading],@"topPading",[NSNumber numberWithFloat:bottomPading],@"bottomPading", nil];
[superView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-topPading-[subView]-bottomPading-|" options:0 metrics: metrics views:viewDict]];
}