类似朋友圈，评论View

来源：互联网发布：以太坊挖矿 windows 编辑：程序博客网时间：2024/04/28 23:56

CommentInputView

最近有一个类似微信朋友圈页面的需求，琢磨了许久，才使用了现在的方式来实现，可能还有别的实现方式，回头整理下，传上来，抛砖引玉。今天上一个评论的View.

1、实现思路

本来想着写一个View,然后替换textview的inputView的，但是今天没有这么实现，
而是写了一个view,然后利用通知中心监控键盘的活动状态，在要弹出键盘的时候，把该view的origin.y移动到键盘上边，键盘要消失的时候，一样的道理，来把view的origin.y移出屏幕外

2、使用

首先，在init或者viewDidLoad中创建监听

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(visiableAnimate:) name:UIKeyboardWillShowNotification object:nil];[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(visiableAnimate:) name:UIKeyboardDidShowNotification object:nil];[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(fadeAnimate:) name:UIKeyboardWillHideNotification object:nil];self.replyView = [[ReplyInputView alloc]initWithFrame:CGRectMake(0, kScreenSize.height - 40, kScreenSize.width, 40)];//view的最大高度self.replyView.maxHeight = 60;//评论的人的名字self.replyView.replyUserName = @"John";//评论按钮可否点击self.replyView.sendBtn.enabled = NO;//使用代理把用户评论的信息传回来self.replyView.commentDelegate = self;[self.view addSubview:self.replyView];- (void)visiableAnimate:(NSNotification *)notify {NSString *rectStr = [NSString stringWithFormat:@"%@",notify.userInfo[@"UIKeyboardBoundsUserInfoKey"]];CGFloat keyboardHeight = [[[rectStr componentsSeparatedByString:@","] lastObject] floatValue];self.replyView.sendBtn.enabled = YES;[UIView animateWithDuration:.25 animations:^{CGRect origin = self.replyView.frame;origin.origin.y = kScreenSize.height - keyboardHeight - self.replyView.frame.size.height;self.replyView.frame = origin;}];}- (void)fadeAnimate:(NSNotification *)notify {self.replyView.sendBtn.enabled = NO;[UIView animateWithDuration:.25 animations:^{CGRect origin = self.replyView.frame;origin.origin.y = kScreenSize.height - self.replyView.frame.size.height;self.replyView.frame = origin;}];}#pragma mark - ReplyInputViewDelegate- (void)didUserCompleteCommentWithString:(NSString *)commentStr {NSLog(@"\n填写评论完成\n评论为：%@",commentStr);self.replyView.inputView.text = [NSString stringWithFormat:@"回复：%@",self.replyView.replyUserName];self.replyView.userTypedStr = self.replyView.inputView.text;}

详情

github

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