键入时如何隐藏密码字母 [英] How to hide the letters of a password while typing

问题描述

我正在使用Android处理应用程序.我的要求是在用户输入密码时隐藏密码.我知道如何隐藏密码，但是在转换为不可读的格式之前，用户输入的密码会在一段时间内可见.任何人都可以在这方面帮助我.

I am dealing an application with Android. My requirement is hiding password while user is typing the password. I know how to hide the password but the password what the user typing is visible for a while before converting into unreadable format.Can anyone help me in this regard.

推荐答案

不要将默认的编辑文本属性设置为密码.相反，您可以使用 addTextChangedListener()，一旦用户输入字符，该代码就会被调用.保持活动级别字符串，例如"mPass".在 TextWatcher()中的 onTextChanged 方法中，将字符附加到mPass并将输入字符替换为*.

Don't set the default edit text property as password. Instead, you can use addTextChangedListener() which will get called as soon as the user enters a character. Maintain an activity level string say "mPass". In the TextWatcher(), onTextChanged method, append character to your mPass and replace the input character by *.

但是，即使将字符替换为*，您也必须小心，因为该coz应用程序会将控制权传递给 TextWatcher().如果处理不当，它将被递归调用，从而导致应用程序崩溃.

But you will have to be careful regarding this coz application will pass control to the TextWatcher() even after you have replaced the character by *. If not handled properly it will get called recursively causing the application to crash.

乏味的方式，但是可以使用...

Tedious way, but it will work...

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