禁用UITextField的复制、粘贴、全选。。。
创建UITextField的子类，重写canPerformAction:withSender:方法
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == @selector(paste:))//禁止粘贴
return NO;
if (action == @selector(select:))// 禁止选择
return NO;
if (action == @selector(selectAll:))// 禁止全选
return NO;
return [super canPerformAction:action withSender:sender];
}
整体禁用：
-(BOOL)canPerformAction:(SEL)action withSender:(id)sender {
UIMenuController *menuController = [UIMenuController sharedMenuController];
if (menuController) {
[UIMenuController sharedMenuController].menuVisible = NO;
}
return NO;
}
