iOS Safari/Chrome 不会向上滚动以在无线电输入上显示验证错误消息
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【中文标题】iOS Safari/Chrome 不会向上滚动以在无线电输入上显示验证错误消息【英文标题】：iOS Safari/Chrome won't scroll up to show validation error message on radio input 【发布时间】：2019-10-01 21:06:40 【问题描述】：我正在为需要适合移动设备的客户设置调查问卷。
当表单被提交/验证，并且没有回答问题时，它会滚动到第一个无效字段 - 无论是文本输入还是无线电输入。这仅适用于桌面浏览器和 android。
在 ios Safari/Chrome 上，文本输入按原样工作，就像在桌面浏览器和 Android 上一样。
但对于单选输入，它会关注尚未回答的问题并显示验证错误消息，但如果焦点问题不在当前显示中，则不会向上滚动到焦点问题。
This question has been asked，但从未得到答复。 有解决办法吗？
<form name="myForm" id="myForm"method="post">
<div class="form-row" id="info">
<div class="col-md-3 mb-3">
<label for="name">Name</label>
<input type="text" class="form-control" id="name" placeholder="Name" value="Tony Stark" required>
</div> <!-- NAME -->
<div class="col-md-3 mb-3">
<label for="company">Company</label>
<input type="text" class="form-control" id="company" placeholder="Company" value="Stark Industries">
</div> <!-- COMPANY -->
<div class="col-md-3 mb-3">
<label for="address">Address</label>
<input type="text" class="form-control" id="address" placeholder="Address" value="10880 Malibu Point" required>
</div> <!-- ADDRESS -->
<div class="col-md-3 mb-3">
<label for="address2">Apt / Suite / Other (Optional)</label>
<input type="text" class="form-control" id="address2" placeholder="Apt / Suite / Other">
</div> <!-- ADDRESS2 -->
</div>
<div class="form-row" id="citystzip">
<div class="col-md-6 mb-3">
<label for="city">City</label>
<input type="text" class="form-control" id="city" placeholder="City" value="Malibu" required>
</div> <!-- CITY -->
<div class="col-md-3 mb-3">
<label for="state">State</label>
<select class="form-control" id="state" placeholder="State" value="CA" required>
<option value="AL">AL</option>
<option value="AK">AK</option>
<option value="AZ">AZ</option>
<option value="AR">AR</option>
<option value="CA">CA</option>
<option value="CO">CO</option>
<option value="CT">CT</option>
<option value="DE">DE</option>
<option value="DC">DC</option>
<option value="FL">FL</option>
<option value="GA">GA</option>
<option value="HI">HI</option>
<option value="ID">ID</option>
<option value="IL">IL</option>
<option value="IN">IN</option>
<option value="IA">IA</option>
<option value="KS">KS</option>
<option value="KY">KY</option>
<option value="LA">LA</option>
<option value="ME">ME</option>
<option value="MD">MD</option>
<option value="MA">MA</option>
<option value="MI">MI</option>
<option value="MN">MN</option>
<option value="MS">MS</option>
<option value="MO">MO</option>
<option value="MT">MT</option>
<option value="NE">NE</option>
<option value="NV">NV</option>
<option value="NH">NH</option>
<option value="NJ">NJ</option>
<option value="NM">NM</option>
<option value="NY">NY</option>
<option value="NC">NC</option>
<option value="ND">ND</option>
<option value="OH">OH</option>
<option value="OK">OK</option>
<option value="OR">OR</option>
<option value="PA">PA</option>
<option value="RI">RI</option>
<option value="SC">SC</option>
<option value="SD">SD</option>
<option value="TN">TN</option>
<option value="TX">TX</option>
<option value="UT">UT</option>
<option value="VT">VT</option>
<option value="VA">VA</option>
<option value="WA">WA</option>
<option value="WV">WV</option>
<option value="WI">WI</option>
<option value="WY">WY</option>
</select>
</div> <!-- STATE -->
<div class="col-md-3 mb-3">
<label for="zip">Zip</label>
<input type="text" class="form-control" id="zip" placeholder="Zip" value="90265" required>
</div> <!-- ZIP -->
</div>
<div class="form-row" id="contact">
<div class="col-md-7 mb-3">
<label for="email">Email</label>
<input type="email" class="form-control" id="email" placeholder="Email" value="tony@starkindustries.com" required>
</div> <!-- EMAIL -->
<div class="col-md-5 mb-3">
<label for="phone">Phone Number</label>
<input type="tel" class="form-control" id="phone" placeholder="Phone Number" value="678-136-7092" required>
</div> <!-- PHONE -->
</div>
<h1>Please answer all survey questions and click submit at the bottom to submit <br>your updated information and survey answers.</h1>
<legend>1. Question 1</legend>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation1" name="question1" value="1a" required>
<label class="custom-control-label" for="customControlValidation1">1a</label>
</div>
<div class="custom-control custom-radio mb-3">
<input type="radio" class="custom-control-input" id="customControlValidation2" name="question1" value="1b" required>
<label class="custom-control-label" for="customControlValidation2">1b</label>
</div>
<legend>2. Question 2</legend>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation3" name="question2" value="2a" required>
<label class="custom-control-label" for="customControlValidation3">2a</label>
</div>
<div class="custom-control custom-radio mb-3">
<input type="radio" class="custom-control-input" id="customControlValidation4" name="question2" value="2b" required>
<label class="custom-control-label" for="customControlValidation4">2b</label>
</div>
<legend>3. Question 3</legend>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation5" name="question3" value="3a" required>
<label class="custom-control-label" for="customControlValidation5">3a</label>
</div>
<div class="custom-control custom-radio mb-3">
<input type="radio" class="custom-control-input" id="customControlValidation6" name="question3" value="3b" required>
<label class="custom-control-label" for="customControlValidation6">3b</label>
</div>
<legend>4. Question 4</legend>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation7" name="question4" value="4a" required>
<label class="custom-control-label" for="customControlValidation7">4a</label>
</div>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation8" name="question4" value="4b" required>
<label class="custom-control-label" for="customControlValidation8">4b</label>
</div>
<legend>5. Question 5</legend>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation9" name="question5" value="5a" required>
<label class="custom-control-label" for="customControlValidation9">5a</label>
</div>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation10" name="question5" value="5b" required>
<label class="custom-control-label" for="customControlValidation10">5b</label>
</div>
<legend>6. Question 6</legend>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation11" name="question6" value="6a" required>
<label class="custom-control-label" for="customControlValidation11">6a</label>
</div>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation12" name="question6" value="6b" required>
<label class="custom-control-label" for="customControlValidation12">6b</label>
</div>
<legend>7. Question 7</legend>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation13" name="question7" value="7a" required>
<label class="custom-control-label" for="customControlValidation13">7a</label>
</div>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation14" name="question7" value="7b" required>
<label class="custom-control-label" for="customControlValidation14">7b</label>
</div>
<legend>8. Question 8</legend>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation15" name="question8" value="8a" required>
<label class="custom-control-label" for="customControlValidation15">8a</label>
</div>
<div class="custom-control custom-radio">
<input type="radio" class="custom-control-input" id="customControlValidation16" name="question8" value="8b" required>
<label class="custom-control-label" for="customControlValidation16">8b</label>
</div>
【问题讨论】：
顶一下，因为我还需要一个答案。 【参考方案1】：<input onFocus=(e) =>
document.getElementsByName(e.target.name)[0].scrollIntoView(
behavior: 'smooth',
block: 'center',
inline: 'start',
);
【讨论】：
【参考方案2】：由于 OP 仍在寻找解决方法，而我也在积极寻找解决方案，以下是我目前的解决方法：
首先我测试是否使用 iPhone/iPad（请检查下面的注释），然后将 EventListeners 附加到监控焦点事件的收音机和复选框输入。由于焦点已正确设置在第一个无效输入上，剩下要做的就是将该输入滚动到可见区域。
if (/^iPad|iPhone$/.test(navigator.platform))
var inputs = form.querySelectorAll('input[type="radio"], input[type="checkbox"]');
inputs.forEach(i =>
i.addEventListener('focus', function (e)
e.target.scrollIntoView(
block: 'center',
behavior: "smooth"
);
)
)
注意：因为 iPadOS (/^iPad|iPhone$/.test(navigator.platform)) 似乎不再工作了。 Tell iPadOS from macOS on the web 列出了解决方案，但由于我目前没有能够运行 iPadOS 的 iPad，我还无法测试它们。
【讨论】：
【参考方案3】：你可以使用 JQuery
$.scrollTo($('#myDiv'), 1000)
【讨论】：
当然有很多方法可以使用 javascript/jquery 来实现。希望有一种解决方案可以使其在 Safari 中运行，而无需自定义代码。也许没有，但是 .. Safari 适用于所有其他输入类型似乎很疯狂，并且只是让这个巨大的错误在单选按钮上存在多年。以上是关于iOS Safari/Chrome 不会向上滚动以在无线电输入上显示验证错误消息的主要内容，如果未能解决你的问题，请参考以下文章
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