IOS之UITextField 禁止粘贴

方法1:重写 canPerformAction:withSender: 方法并返回 NO 即可。

- (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];
    }

方法2:

-(BOOL)canPerformAction:(SEL)action withSender:(id)sender {
    UIMenuController *menuController = [UIMenuController sharedMenuController];
    if (menuController) {
        [UIMenuController sharedMenuController].menuVisible = NO;
    }
    return NO;
}