/***只能输入字母和数字，默认弹出英文输入法*/editext.setKeyListener(newDigitsKeyListener(){@OverridepublicintgetInputType(){returnInputType.TYPE_TEXT_VARIATION_PASSWORD;}@Overrideprotectedchar[]getAcceptedChars(){char[]data=getStringData(R.string.wordAndNum).toCharArray();returndata;}});publicStringgetStringData(intid){returngetResources().getString(id);}String.xml<stringname="wordAndNum">qwertyuioplkjhgfdsazxcvbnmQWERTYUIOPLKJHGFDSAZXCVBNM1234567890</string>