javascript 让聊天框响应较小屏幕的麻烦

new9mtju  于 2023-10-14  发布在  Java
关注(0)|答案(2)|浏览(73)

我正在开发一个聊天框用户界面，我在使它对较小的屏幕响应方面遇到了麻烦。我希望聊天部分是响应，这意味着它应该自动调整其布局，以适应屏幕大小。主要目标是确保用户，即使在较小的屏幕上，也不必水平滚动来访问发送按钮等各种元素。

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.2.1/css/all.min.css" integrity="sha512-MV7K8+y+gLIBoVD59lQIYicR65iaqukzvf/nwasF0nqhPay5w/9lJmVM2hMDcnK1OnMGCdVK+iQrJ7lzPJQd1w==" crossorigin="anonymous" referrerpolicy="no-referrer" />
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/boxicons@latest/css/boxicons.min.css">
    <title>Chat Box</title>
</head>
<style>
*{
  margin: 0;
  padding: 0;
}
:root {
  --body-bg: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  --msger-bg: #fff;
  --border: 2px solid #ddd;
  --left-msg-bg: #ececec;
  --right-msg-bg: #579ffb;
}

.mncht,
.mncht:before,
.mncht:after{
  margin: 0;
  padding: 0;
  box-sizing: inherit;
}
.mncht{
    box-sizing: border-box;
   margin: 5px auto;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 5px;
  background-image: var(--body-bg);
  font-family: Helvetica, sans-serif;
}
.msger {
  display: flex;
  flex-flow: column wrap;
  justify-content: space-between;
  width: 100%;
  max-width: 867px;
  margin: 25px 10px;
  height: calc(100% - 50px);
  border: var(--border);
  border-radius: 5px;
  background: var(--msger-bg);
  box-shadow: 0 15px 15px -5px rgba(0, 0, 0, 0.2);
}

.msger-header {
  display: flex;
  justify-content: space-between;
  padding: 10px;
  border-bottom: var(--border);
  background: #eee;
  color: #666;
}
.msger-header-title{
  margin: 2px;
  padding: 5px;
}
.nofs{
  margin: 2px;
}
.msger-chat {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
}
.msger-chat::-webkit-scrollbar {
  width: 6px;
}
.msger-chat::-webkit-scrollbar-track {
  background: #ddd;
}
.msger-chat::-webkit-scrollbar-thumb {
  background: #bdbdbd;
}
.msg {
  display: flex;
  align-items: flex-end;
  margin-bottom: 10px;
}
.msg:last-of-type {
  margin: 0;
}
.msg-img {
  width: 50px;
  height: 50px;
  margin-right: 10px;
  background: #ddd;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  border-radius: 50%;
}
.msg-bubble {
  max-width: 450px;
  padding: 15px;
  border-radius: 15px;
  background: var(--left-msg-bg);
}
.msg-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.msg-info-name {
  margin-right: 10px;
  font-weight: bold;
}
.msg-info-time {
  font-size: 0.85em;
}

.left-msg .msg-bubble {
  border-bottom-left-radius: 0;
}

.right-msg {
  flex-direction: row-reverse;
}
.right-msg .msg-bubble {
  background: var(--right-msg-bg);
  color: #fff;
  border-bottom-right-radius: 0;
}
.right-msg .msg-img {
  margin: 0 0 0 10px;
}

.msger-inputarea {
  display: flex;
  padding: 15px;
  border-top: var(--border);
  background: #eee;
}
.msger-inputarea * {
  padding: 11px;
  border: none;
  border-radius: 3px;
  font-size: 1em;
}
.msger-input {
  padding: 20px;
  flex-grow: 1;
  margin: 10px auto;
  background: #ddd;
}
.msger-send-btn {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  margin-left: 3px;
  color: #000000;
  font-weight: bold;
  cursor: pointer;
  font-size: 24px;
  transition: background 0.23s;
}
.msger-send-btn:hover {
  background: #00b432;
}

.msger-send-btn-mg {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    padding: 7px !important;
    margin: 10px 5px auto;
    font-size: 25px;
    height: 77%;
    width: 8%;
    color: #000000;
    border-radius: 7px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    position: relative;
    overflow: hidden;
}
.msger-send-btn-mg:hover{
  background-color: #1ab479;
}
.msger-send-btn-mg i {
    margin-right: 2px;
}

.msger-send-btn-mg input {
    position: absolute;
    top: 0;
    left: 0;
    width: 10%;
    height: 80%;
    opacity: 0;
    cursor: pointer;
}

.msger-send-btn-mg:hover {
    background-color: #0e8859;
}

.error {
    color: red;
    margin-top: 10px;
}

.hidden {
    display: none;
}

.snd-btn{
  margin-right: -11px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}
.ext-cr{
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px;
  border-radius: 8px;
  width: 100%;
  font-size: 22px;
  cursor: pointer;
}
.ext-cr:hover{
  background:#52a4c5;
}
.ext-cr:focus{
  background:#36768f;
}
.msger-chat {
  background-color: #fcfcfe;
  /* background-image:  */
}

</style>
<body>
    <div class="mncht">
    <section class="msger">
        <header class="msger-header">
          <div class="msger-header-title">
            <i class="fas fa-comment-alt nofs"></i>&nbsp; &nbsp; Chat Kura
          </div>
          <div class="msger-header-options">
            <span class="ext-cr" id="open-modal"><i class="fa-regular fa-circle-xmark"></i></span>
          </div>
        </header>
      
        <main class="msger-chat">
          <div class="msg left-msg">
            <div
             class="msg-img"
             style="background-image: url(https://image.flaticon.com/icons/svg/327/327779.svg)"
            ></div>
      
            <div class="msg-bubble">
              <div class="msg-info">
                <div class="msg-info-name">Your name</div>
                <div class="msg-info-time">Message Time</div>
              </div>
      
              <div class="msg-text">
                You can change your name in JS section!
              </div>
            </div>
          </div>
      
          <div class="msg right-msg">
            <div
             class="msg-img"
             style="background-image: url(https://image.flaticon.com/icons/svg/145/145867.svg)"
            ></div>
      
            <div class="msg-bubble">
              <div class="msg-info">
                <div class="msg-info-name">Your Name</div>
                <div class="msg-info-time">Message Time </div>
              </div>
      
              <div class="msg-text">
                You can change your name in JS section!
              </div>
            </div>
          </div>
        </main>
      
        <form class="msger-inputarea">
            <button class="msger-send-btn-mg">
        <i class="far fa-images" id="thfn"></i>
        <input type="file" id="imageInput" accept="image/*" onchange="validateImage()">
    </button>
    <p id="errorText" class="error hidden">File size exceeds the limit (2MB).</p>
          <input type="text" class="msger-input" placeholder="Enter your message...">
          <div class="snd-btn">
          <button type="submit" class="msger-send-btn"><i class="fas fa-paper-plane"> </i> &nbsp;
          </button> </div>
        </form>
      </section>
    </div>

    
    <script>
const msgerForm = get(".msger-inputarea");
const msgerInput = get(".msger-input");
const msgerChat = get(".msger-chat");

const BOT_MSGS = [
  "Hi, how are you?",
  "Ohh... I can't understand what you trying to say. Sorry!",
  "I like to play games... But I don't know how to play!",
  "Sorry if my answers are not relevant. :))",
  "I feel sleepy! :("
];

// Icons made by Freepik from www.flaticon.com
const BOT_IMG = "https://image.flaticon.com/icons/svg/327/327779.svg";
const PERSON_IMG = "https://image.flaticon.com/icons/svg/145/145867.svg";
const BOT_NAME = "BOT";
const PERSON_NAME = "Sajad";

msgerForm.addEventListener("submit", event => {
  event.preventDefault();

  const msgText = msgerInput.value;
  if (!msgText) return;

  appendMessage(PERSON_NAME, PERSON_IMG, "right", msgText);
  msgerInput.value = "";

  botResponse();
});

function appendMessage(name, img, side, text) {
  //   Simple solution for small apps
  const msgHTML = `
    <div class="msg ${side}-msg">
      <div class="msg-img" style="background-image: url(${img})"></div>

      <div class="msg-bubble">
        <div class="msg-info">
          <div class="msg-info-name">${name}</div>
          <div class="msg-info-time">${formatDate(new Date())}</div>
        </div>

        <div class="msg-text">${text}</div>
      </div>
    </div>
  `;

  msgerChat.insertAdjacentHTML("beforeend", msgHTML);
  msgerChat.scrollTop += 500;
}

function botResponse() {
  const r = random(0, BOT_MSGS.length - 1);
  const msgText = BOT_MSGS[r];
  const delay = msgText.split(" ").length * 100;

  setTimeout(() => {
    appendMessage(BOT_NAME, BOT_IMG, "left", msgText);
  }, delay);
}

// Utils
function get(selector, root = document) {
  return root.querySelector(selector);
}

function formatDate(date) {
  const h = "0" + date.getHours();
  const m = "0" + date.getMinutes();

  return `${h.slice(-2)}:${m.slice(-2)}`;
}

function random(min, max) {
  return Math.floor(Math.random() * (max - min) + min);
}
 
    </script>
<script>
    function validateImage() {
            const fileInput = document.getElementById("imageInput");
            const errorText = document.getElementById("errorText");
            const maxSize = 2 * 1024 * 1024; // 2MB

            if (fileInput.files.length > 0) {
                const fileSize = fileInput.files[0].size;
                if (fileSize > maxSize) {
                    errorText.style.display = "block";
                } else {
                    errorText.style.display = "none";
                }
            }
        }
</script>
<script src="main.js"></script>
</body>
</html>

我尝试在css中添加一些媒体查询来调整布局，但它没有达到响应的水平。

@media (max-width: 768px) {
  .msger {
    margin: 0 auto;
  }

  .msger-chat {
    max-height: 250px;
  }
}

@media (max-width: 480px) {
  .msger-header,
  .msger-inputarea {
    padding: 10px;
  }
}

谢谢你的帮助，）。

JavaScript

2条答案

按热度按时间
uqcuzwp8

uqcuzwp81#

正如我所看到的，“.msger-inputarea”中的padding给你带来了麻烦，在“.msger-inputarea *”中将其设置为0，宽度小于500 px，然后你可以将“.msger-inputarea”中的padding设置为0，宽度小于400 px，你只需要调整元素的大小：字体大小、输入字段大小等。

赞(0）分享  回复(0）举报  2023-10-14
nsc4cvqm

nsc4cvqm2#

两个按钮和文本区域太大，无法放入小屏幕。您可以尝试更改它们的布局，使其不水平滚动。我已经设置了一个媒体查询，它似乎适用于290px以上的屏幕尺寸（如果你不想改变底部元素的布局）。尝试将其粘贴在CSS的末尾。

@media (max-width: 420px) {
  .msger {
    margin:  25px 0;
  }
  .msg-bubble {
    font-size: 0.8rem;
  }
  
  .msger-input {
    padding: 0 20px;
    width: 130px;
    
  }
  .snd-btn {
    padding: 11px 0px;
  }
}
赞(0）分享  回复(0）举报  2023-10-14
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