Utilities to Validate things

	import android.app.Activity;
	import android.support.design.widget.TextInputLayout;
	import android.view.View;
	import android.view.WindowManager;
	import android.widget.EditText;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;
	/**
	* Created by Somasundaram Mahesh on 12/1/2015.
	*/
	public class ValidateUtils {
	private static final String EMAIL_PATTERN = "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
	+ "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
	private static final String MOBILE_PATTERN = "^(?:0091|\\+91|0|)[7-9][0-9]{9}$";
	private static final String NAME_PATTERN = "^.*[a-zA-Z]+.*";
	private static final String TAG = ValidateUtils.class.getSimpleName();
	public static boolean ValidEmailId(String Email) {
	return Email.matches(EMAIL_PATTERN);
	}
	public static boolean checkMobileNoFormat(String mobileNo) {
	String mobile = mobileNo.replace(" ", "");
	mobile = mobile.replace("–", "");
	Pattern mobileNoPattern = Pattern.compile(MOBILE_PATTERN);
	Matcher mat = mobileNoPattern.matcher(mobile);
	Log.d(TAG, "Mobile Number" + mobileNo + " Validation result :" + mat.matches());
	return mat.matches();
	}
	public static boolean checkIsName(String mobileNo) {
	Pattern mobileNoPattern = Pattern.compile(NAME_PATTERN);
	Matcher mat = mobileNoPattern.matcher(mobileNo);
	return mat.matches();
	}
	public static boolean checkIsPassword(String password) {
	return !(password.trim().isEmpty() || !(password.length() >= 6));
	}
	private static void requestFocus(View view, Activity activity) {
	if (view.requestFocus()) {
	activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
	}
	}
	public static boolean validateEditText(Activity activity, TextInputLayout textInputLayout, EditText editText, String errorMessage, boolean isPassed) {
	if (!isPassed) {
	textInputLayout.setError(errorMessage);
	requestFocus(editText, activity);
	return false;
	} else {
	textInputLayout.setErrorEnabled(false);
	}
	return true;
	}
	}

view raw
ValidateUtils.java
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