有没有办法将键盘设置为仅限英文的文本字段?我不希望用户能够切换到另一种语言。
许多人认为/说这是不可能的,但是对于这个主题的回答有14票,请求不同。唯一的问题是,它是用客观的c写的,我只知道很快...... iPhone: Change Keyboard language programmatically
答案 0 :(得分:4)
textField.keyboardType = .asciiCapable
应该这样做。
答案 1 :(得分:1)
我知道这是一个老问题,但这是:
$ args79 uname date pwd
/Users/jleffler/soq
Process pwd (PID 2105) exited with status 0 (0x0000)
Darwin
Sun Sep 15 09:04:37 MDT 2019
Process uname (PID 2103) exited with status 0 (0x0000)
Process date (PID 2104) exited with status 0 (0x0000)
$
这是一个func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
if !["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"].contains(string.lowercased()) {
return false
}
return true
}
方法,因此您需要使View Controller符合该方法。您还需要将文本字段的委托设置为self,就像这样:
UITextFieldDelegate
它的作用是检查用户键入的每个字母是否属于上面的字母列表...如果不是,则不允许文本字段更改。
答案 2 :(得分:0)
F iOS 10.0及更高版本:
a)Objective-C
<!DOCTYPE html>
<html>
<style>
p {
font-family: Calibri;
font-size: 14px;
font-weight: bolder;
text-align: left;
}
p.fade {
color: #CCCCCC;
font-size: 14px;
}
em {
font-style: italic;
font-size: 16px;
font-weight: lighter;
}
em.pass {
font-style: italic;
font-size: 16px;
color: green;
}
em.fail {
font-style: italic;
font-size: 16px;
color: red;
}
a {
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
hr {
align: left;
margin-left: 0px;
width: 500px;
height: 1px;
}
table {
border-collapse: collapse;
}
.main_head {
background-color: orange;
border: none;
align: left;
margin-left: 0px;
width: 2000px;
}
tr {
padding: 4px;
text-align: center;
border-right: 2px solid #FFFFFF;
}
tr[data-type="QA"] {
color: #ff0000 !important;
}
tr:nth-child(even) {
background-color: #f2f2f2
}
th {
background-color: #cceeff;
color: black;
padding: 4px;
border-right: 2px solid #FFFFFF;
}
</style>
<body>
<table>
<table>
<tr data-type="QA">
<td style='color:BlueViolet'>Details: TEST HTML</td>
</tr>
</table>
<table>
<th class="main_head" colspan=3> CPU: usr=0.89% sys=3.38% |ssssssssssssssssssssssssssssssss
------hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh---------------------------------------------------------------------------------------
</th>
<tr>
</tr>
<tr>
<td>Name</td>
<td>First Name</td>
<td> Last Name</td>
<td> Work</td>
<td> Percentages</td>
</tr>
</table>
</table>
</body>
</html>
b)迅速
yourTextfield.keyboardType = UIKeyboardTypeASCIICapableNumberPad
答案 3 :(得分:0)
yourTextField.keyboardType = UIKeyboardType.alphabet
这是解决方案。 :)