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Android 校验email是否合法
这个其实跟JAVA中是一样的。例子:

String regEx = "^(([\w-]+\.)+[\w-]+|([a-zA-Z]{1}|[\w-]{2,}))@" +"((([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\.([0-1]?" +"[0-9]{1,2}|25[0-5]|2[0-4][0-9])\." +"([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\.([0-1]?" +"[0-9]{1,2}|25[0-5]|2[0-4][0-9])){1}|" +"([a-zA-Z]+[\w-]+\.)+[a-zA-Z]{2,4})$";public void btnValidateEmailAddress(View v) { strEmailAddress = editTextEmail.getText().toString().trim();Matcher matcherObj = Pattern.compile(regEx).matcher(strEmailAddress);if (matcherObj.matches()) { Toast.makeText(v.getContext(), strEmailAddress+" is valid", Toast.LENGTH_SHORT).show(); } else { Toast.makeText(v.getContext(), strEmailAddress+" is InValid", Toast.LENGTH_SHORT).show(); } } 
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