带有安全条目的UITextField，在编辑之前总是被清除 [英] UITextField with secure entry, always getting cleared before editing

问题描述

我遇到一个奇怪的问题，当我尝试编辑它时，我的UITextField持有一个安全条目总是被清除。我在字段中添加了3个字符，转到另一个字段并返回，光标位于第4个字符位置，但是当我尝试添加另一个字符时，字段中的整个文本被新字符清除。我在笔尖中未选中编辑开始时清除。那么问题是什么呢？如果我删除安全入口属性，一切正常，那么，这是安全输入文本字段的属性吗？有没有办法阻止这种行为？

I am having a weird issue in which my UITextField which holds a secure entry is always getting cleared when I try to edit it. I added 3 characters to the field, goes to another field and comes back, the cursor is in 4th character position, but when I try to add another character, the whole text in the field gets cleared by the new character. I have 'Clears when editing begins' unchecked in the nib. So what would be the issue? If I remove the secure entry property, everything is working fine, so, is this the property of Secure entry text fields? Is there any way to prevent this behaviour?

推荐答案

设置，

textField.clearsOnBeginEditing = NO;

注意：如果 secureTextEntry = YES ，这将不起作用。默认情况下，iOS会在编辑之前清除安全输入文本字段的文本，无论 clearsOnBeginEditing 是YES还是NO。

Note: This won't work if secureTextEntry = YES. It seems, by default, iOS clears the text of secure entry text fields before editing, no matter clearsOnBeginEditing is YES or NO.

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