android EditText输入限制

1. EditText<wbr>et;<wbr><wbr></wbr></wbr></wbr>
2. et<wbr>=<wbr>(EditText)<wbr>findViewById(R.id.et);<wbr><wbr></wbr></wbr></wbr></wbr></wbr>
3. //<wbr>方法1:建立一个DigitsKeyListener,然后把它设为你的EditText的KeyListener</wbr><wbr><wbr></wbr></wbr>
4. DigitsKeyListener<wbr>numericOnlyListener<wbr>=<wbr></wbr></wbr></wbr>new<wbr>DigitsKeyListener(</wbr>false,true);<wbr><wbr></wbr></wbr>
5. et.setKeyListener(numericOnlyListener);<wbr><wbr></wbr></wbr>
6. //<wbr>方法2:为EditText设置一个NumberKeyListener,然后重写getAcceptedChars()方法和getInputType()方法</wbr><wbr><wbr></wbr></wbr>
7. et.setKeyListener(new<wbr>NumberKeyListener()<wbr>{<wbr><wbr></wbr></wbr></wbr></wbr>
8. <wbr><wbr><wbr><wbr></wbr></wbr></wbr></wbr>@Override<wbr><wbr></wbr></wbr>
9. <wbr><wbr><wbr><wbr></wbr></wbr></wbr></wbr>protected<wbr></wbr>char[]<wbr>getAcceptedChars()<wbr>{<wbr><wbr></wbr></wbr></wbr></wbr>
10. <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>return<wbr></wbr>new<wbr></wbr>char[]<wbr>{<wbr></wbr></wbr>'1',<wbr></wbr>'2',<wbr></wbr>'3',<wbr></wbr>'4',<wbr></wbr>'5',<wbr></wbr>'6',<wbr></wbr>'7',<wbr></wbr>'8','9',<wbr></wbr>'0'<wbr>};<wbr><wbr></wbr></wbr></wbr>
11. <wbr><wbr><wbr><wbr>}<wbr><wbr></wbr></wbr></wbr></wbr></wbr></wbr>
12. <wbr><wbr><wbr><wbr></wbr></wbr></wbr></wbr>@Override<wbr><wbr></wbr></wbr>
13. <wbr><wbr><wbr><wbr></wbr></wbr></wbr></wbr>public<wbr></wbr>int<wbr>getInputType()<wbr>{<wbr><wbr></wbr></wbr></wbr></wbr>
14. <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>//<wbr>TODO<wbr>Auto-generated<wbr>method<wbr>stub</wbr></wbr></wbr></wbr><wbr><wbr></wbr></wbr>
15. <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>return<wbr>android.text.InputType.TYPE_CLASS_PHONE;<wbr><wbr></wbr></wbr></wbr>
16. <wbr><wbr><wbr><wbr>}<wbr><wbr></wbr></wbr></wbr></wbr></wbr></wbr>
17. });<wbr></wbr>

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01.EditText et;<wbr><br> 02.et = (EditText) findViewById(R.id.et);<wbr><br> 03.// 方法1:建立一个DigitsKeyListener,然后把它设为你的EditText的KeyListener<wbr><wbr><br> 04.DigitsKeyListener numericOnlyListener = new DigitsKeyListener(false,true);<wbr><br> 05.et.setKeyListener(numericOnlyListener);<wbr><br> 06.// 方法2:为EditText设置一个NumberKeyListener,然后重写getAcceptedChars()方法和getInputType()方法<wbr><wbr><br> 07.et.setKeyListener(new NumberKeyListener() {<wbr><br> 08.<wbr><wbr><wbr>@Override<wbr><br> 09.<wbr><wbr><wbr>protected char[] getAcceptedChars() {<wbr><br> 10.<wbr><wbr><wbr><wbr><wbr><wbr><wbr>return new char[] { '1', '2', '3', '4', '5', '6', '7', '8','9', '0' };<wbr><br> 11.<wbr><wbr><wbr>}<wbr><br> 12.<wbr><wbr><wbr>@Override<wbr><br> 13.<wbr><wbr><wbr>public int getInputType() {<wbr><br> 14.<wbr><wbr><wbr><wbr><wbr><wbr><wbr>// TODO Auto-generated method stub<wbr><wbr><br> 15.<wbr><wbr><wbr><wbr><wbr><wbr><wbr>return android.text.InputType.TYPE_CLASS_PHONE;<wbr><br> 16.<wbr><wbr><wbr>}<wbr><br> 17.});<wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>

小结：

第一种可以输入小数。

第二种由于设置了TYPE_CLASS_PHONE所以只能输入整数。且比较灵活。