[摘要]本文是對清除緩存的UIActionSheet的講解，對學習IOS蘋果軟件開發有所幫助,與大家分享。

點擊任何處，出現提示：

代碼:

//點擊任何處出現sheet

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

UIActionSheet * sheet = [[UIActionSheet alloc] initWithTitle:@"確定要清空圖片緩存？" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"確定" otherButtonTitles:nil, nil];

[sheet showInView:self.view];

}