[英]Android EditText - InputType Validation?
Created a AlertDialog that is used to prompting the user to enter a keyword. 创建了一个AlertDialog,用于提示用户输入关键字。 Problem is that I don't want the keyword to have any symbols in it, so I though that doing
问题是我不希望关键字中包含任何符号,所以我尽管如此
input.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_NORMAL); input.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_NORMAL);
Might do that, but for some reason on my 1.6 API level 4 emulator it doesn't seem to work, it lets me enter everything. 可能会这样做,但出于某种原因,在我的1.6 API 4级模拟器上,它似乎不起作用,它让我输入所有内容。 Am I doing it right?
我做得对吗? I've googled around and everyone else's seems to work.
我用Google搜索过,其他人似乎都在工作。
Here is custom edit box listener that allows only alphanumeric characters. 这是自定义编辑框侦听器,仅允许使用字母数字字符。
package com.iperia.android.listener; import android.text.Editable; import android.text.InputType; import android.text.method.NumberKeyListener; import android.view.View; public class AlphanumericPasswordKeyListener extends NumberKeyListener { @Override protected char[] getAcceptedChars() { return new char [] { '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'e', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'E', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'}; } @Override public void clearMetaKeyState(View view, Editable content, int states) { } @Override public int getInputType() { return InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD; } }
Then in your activity in onCreate
method add next code: 然后在
onCreate
方法的活动中添加下一个代码:
EditText passwordEditText = (EditText)findViewById(R.id.password); passwordEditText.setKeyListener(new AlphanumericPasswordKeyListener());
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