Allow 1st party app to set Line 1 number for display purpose.

After the number is set, TelephonyManager.getLine1Number will actually
return this one instead of the actual MSISDN/MDN.

Bug: 11900806
Change-Id: I4df3fac7b483ddae2bbda14b5a85629486e400cf

2 files changed, 90 insertions, 0 deletions

diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 4459c36..1c84741 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -1695,6 +1695,15 @@ public class TelephonyManager {
      */
     /** {@hide} */
     public String getLine1Number(long subId) {
+        String number = null;
+        try {
+            number = getITelephony().getLine1NumberForDisplay(subId);
+        } catch (RemoteException ex) {
+        } catch (NullPointerException ex) {
+        }
+        if (number != null) {
+            return number;
+        }
         try {
             return getSubscriberInfo().getLine1NumberUsingSubId(subId);
         } catch (RemoteException ex) {
@@ -1706,6 +1715,47 @@ public class TelephonyManager {
     }
 
     /**
+     * Set the phone number string and its alphatag for line 1 for display
+     * purpose only, for example, displayed in Phone Status. It won't change
+     * the actual MSISDN/MDN. This setting won't be persisted during power cycle
+     * and it should be set again after reboot.
+     * <p>
+     * Requires Permission:
+     *   {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE}
+     *
+     * @param alphaTag alpha-tagging of the dailing nubmer
+     * @param number The dialing number
+     *
+     * @hide
+     */
+    public void setLine1NumberForDisplay(String alphaTag, String number) {
+        setLine1NumberForDisplay(getDefaultSubscription(), alphaTag, number);
+    }
+
+    /**
+     * Set the phone number string and its alphatag for line 1 for display
+     * purpose only, for example, displayed in Phone Status. It won't change
+     * the actual MSISDN/MDN. This setting won't be persisted during power cycle
+     * and it should be set again after reboot.
+     * <p>
+     * Requires Permission:
+     *   {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE}
+     *
+     * @param subId the subscriber that the alphatag and dialing number belongs to.
+     * @param alphaTag alpha-tagging of the dailing nubmer
+     * @param number The dialing number
+     *
+     * @hide
+     */
+    public void setLine1NumberForDisplay(long subId, String alphaTag, String number) {
+        try {
+            getITelephony().setLine1NumberForDisplay(subId, alphaTag, number);
+        } catch (RemoteException ex) {
+        } catch (NullPointerException ex) {
+        }
+    }
+
+    /**
      * Returns the alphabetic identifier associated with the line 1 number.
      * Return null if it is unavailable.
      * <p>
@@ -1730,6 +1780,15 @@ public class TelephonyManager {
      */
     /** {@hide} */
     public String getLine1AlphaTag(long subId) {
+        String alphaTag = null;
+        try {
+            alphaTag = getITelephony().getLine1AlphaTagForDisplay(subId);
+        } catch (RemoteException ex) {
+        } catch (NullPointerException ex) {
+        }
+        if (alphaTag != null) {
+            return alphaTag;
+        }
         try {
             return getSubscriberInfo().getLine1AlphaTagUsingSubId(subId);
         } catch (RemoteException ex) {
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 7f0203a..4592717 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -675,5 +675,36 @@ interface ITelephony {
      * @return true if the simplified UI is enabled.
      */
     boolean getSimplifiedNetworkSettingsEnabled(long subId);
+
+    /**
+     * Set the phone number string and its alphatag for line 1 for display
+     * purpose only, for example, displayed in Phone Status. It won't change
+     * the actual MSISDN/MDN. This setting won't be persisted during power cycle
+     * and it should be set again after reboot.
+     *
+     * @param subId the subscriber that the alphatag and dialing number belongs to.
+     * @param alphaTag alpha-tagging of the dailing nubmer
+     * @param number The dialing number
+     */
+    void setLine1NumberForDisplay(long subId, String alphaTag, String number);
+
+    /**
+     * Returns the displayed dialing number string if it was set previously via
+     * {@link #setLine1NumberForDisplay}. Otherwise returns null.
+     *
+     * @param subId whose dialing number for line 1 is returned.
+     * @return the displayed dialing number if set, or null if not set.
+     */
+    String getLine1NumberForDisplay(long subId);
+
+    /**
+     * Returns the displayed alphatag of the dialing number if it was set
+     * previously via {@link #setLine1NumberForDisplay}. Otherwise returns null.
+     *
+     * @param subId whose alphatag associated with line 1 is returned.
+     * @return the displayed alphatag of the dialing number if set, or null if
+     *         not set.
+     */
+    String getLine1AlphaTagForDisplay(long subId);
 }