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Add a documentation in EmergencyNumber#getNumber

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If the number starts with a carrier prefix, the
 carrier prefix is configured in
 {@link CarrierConfigManager#KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY}.

This is important because it provides a solid reference for Apps to
strip the prefix, which they may not prefer to display.

Bug: 137225076
Test: Treehugger
Change-Id: I1f6bd74f1d6eb86fe3326246e0ddb08b9cf7ac11
This commit is contained in:
sqian
2019-07-11 14:42:37 -07:00
committed by Shuo Qian
parent c3ee236a95
commit 552a58ae51
1 changed files with 4 additions and 0 deletions
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4
telephony/java/android/telephony/emergency/EmergencyNumber.java
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@@ -22,6 +22,7 @@ import android.hardware.radio.V1_4.EmergencyNumberSource;
import android.hardware.radio.V1_4.EmergencyServiceCategory; import android.hardware.radio.V1_4.EmergencyServiceCategory;
import android.os.Parcel; import android.os.Parcel;
import android.os.Parcelable; import android.os.Parcelable;
import android.telephony.CarrierConfigManager;
import android.telephony.PhoneNumberUtils; import android.telephony.PhoneNumberUtils;
import android.telephony.Rlog; import android.telephony.Rlog;
@@ -301,6 +302,9 @@ public final class EmergencyNumber implements Parcelable, Comparable<EmergencyNu
* The character in the number string is only the dial pad * The character in the number string is only the dial pad
* character('0'-'9', '*', '+', or '#'). For example: 911. * character('0'-'9', '*', '+', or '#'). For example: 911.
* *
* If the number starts with carrier prefix, the carrier prefix is configured in
* {@link CarrierConfigManager#KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY}.
*
* @return the dialing number. * @return the dialing number.
*/ */
public @NonNull String getNumber() { public @NonNull String getNumber() {