}
/**
- * Checks if the supplied number is an emergency number based on current locale, sim, default,
- * modem and network.
+ * Identifies if the supplied phone number is an emergency number that matches a known
+ * emergency number based on current locale, SIM card(s), Android database, modem, network,
+ * or defaults.
+ *
+ * <p>This method assumes that only dialable phone numbers are passed in; non-dialable
+ * numbers are not considered emergency numbers. A dialable phone number consists only
+ * of characters/digits identified by {@link PhoneNumberUtils#isDialable(char)}.
*
* <p>The subscriptions which the identification would be based on, are all the active
* subscriptions, no matter which subscription could be used to create TelephonyManager.
*
* @param number - the number to look up
* @return {@code true} if the given number is an emergency number based on current locale,
- * sim, modem and network; {@code false} otherwise.
+ * SIM card(s), Android database, modem, network or defaults; {@code false} otherwise.
*/
public boolean isEmergencyNumber(@NonNull String number) {
try {
import android.hardware.radio.V1_4.EmergencyServiceCategory;
import android.os.Parcel;
import android.os.Parcelable;
+import android.telephony.PhoneNumberUtils;
import android.telephony.Rlog;
import java.lang.annotation.Retention;
}
/**
- * Validate Emergency Number address that only allows '0'-'9', '*', or '#'
+ * Validate Emergency Number address that only contains the dialable character
+ * {@link PhoneNumberUtils#isDialable(char)}
*
* @hide
*/
public static boolean validateEmergencyNumberAddress(String address) {
- return address.matches("[0-9*#]+");
+ if (address == null) {
+ return false;
+ }
+ for (char c : address.toCharArray()) {
+ if (!PhoneNumberUtils.isDialable(c)) {
+ return false;
+ }
+ }
+ return true;
}
}