Add the Primary IMEI

As per GSMA specification TS37, below Primary IMEI requirements are mandatory to support

-TS37_2.2_REQ_5
-TS37_2.2_REQ_8 (Attached the document has description about this test cases)
Bug: 341006304
Test: atest MobileNetworkImeiPreferenceControllerTest

Change-Id: I839440de7d2680d21832dce6d0d56db992796fca

res/values/strings.xml

@@ -11855,6 +11855,10 @@
     <string name="sim_onboarding_progressbar_turning_sim_on">Turning on <xliff:g id="carrier_name" example="Google Fi">%1$s</xliff:g>&#8230;</string>
     <!-- Title of service provider name(SPN) at mobile network settings page. [CHAR LIMIT=30] -->
     <string name="mobile_network_spn_title">Mobile network</string>
+    <!-- At the mobile network page, title for primary IMEI for multi-sim devices -->
+    <string name="imei_primary">IMEI (primary)</string>
+    <!-- At the mobile network page, title for primary MEID for multi-sim devices -->
+    <string name="meid_primary">MEID (primary)</string>
     <!-- Title of phone number at mobile network settings page. [CHAR LIMIT=30] -->
     <string name="mobile_network_phone_number_title">Phone number</string>
     <!-- Title of SIM label and color editor dialog at mobile network settings page. [CHAR LIMIT=30] -->

src/com/android/settings/network/telephony/MobileNetworkImeiPreferenceController.kt

@@ -17,7 +17,6 @@
 package com.android.settings.network.telephony
 
 import android.content.Context
-import android.os.UserManager
 import android.telephony.SubscriptionInfo
 import android.telephony.SubscriptionManager
 import android.telephony.TelephonyManager
@@ -41,6 +40,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 
+
 /**
  * Preference controller for "IMEI"
  */
@@ -123,17 +123,21 @@ class MobileNetworkImeiPreferenceController(context: Context, key: String) :
         ImeiInfoDialogFragment.show(fragment, simSlot, preference.title.toString())
         return true
     }
+
     private fun getImei(): String {
         val phoneType = getPhoneType()
         return if (phoneType == TelephonyManager.PHONE_TYPE_CDMA) mTelephonyManager.meid?: String()
                 else mTelephonyManager.imei?: String()
     }
+
     private fun getTitleForGsmPhone(): String {
-        return mContext.getString(R.string.status_imei)
+        return mContext.getString(
+            if (isPrimaryImei()) R.string.imei_primary else R.string.status_imei)
     }
 
     private fun getTitleForCdmaPhone(): String {
-        return mContext.getString(R.string.status_meid_number)
+        return mContext.getString(
+            if (isPrimaryImei()) R.string.meid_primary else R.string.status_meid_number)
     }
 
     private fun getTitle(): String {
@@ -142,6 +146,28 @@ class MobileNetworkImeiPreferenceController(context: Context, key: String) :
                 else getTitleForGsmPhone()
     }
 
+    /**
+     * As per GSMA specification TS37, below Primary IMEI requirements are mandatory to support
+     *
+     * TS37_2.2_REQ_5
+     * TS37_2.2_REQ_8 (Attached the document has description about this test cases)
+     */
+    protected fun isPrimaryImei(): Boolean {
+        val imei = getImei()
+        var primaryImei = String()
+
+        try {
+            primaryImei = mTelephonyManager.primaryImei
+        } catch (exception: Exception) {
+            Log.e(TAG, "PrimaryImei not available. $exception")
+        }
+        return primaryImei == imei && isMultiSim()
+    }
+
+    private fun isMultiSim(): Boolean {
+        return mTelephonyManager.activeModemCount > 1
+    }
+
     fun getPhoneType(): Int {
         return mTelephonyManager.currentPhoneType
     }

tests/spa_unit/src/com/android/settings/network/telephony/MobileNetworkImeiPreferenceControllerTest.kt

@@ -19,18 +19,16 @@ package com.android.settings.network.telephony
 import android.content.Context
 import android.telephony.SubscriptionInfo
 import android.telephony.TelephonyManager
-import android.telephony.euicc.EuiccManager
 import androidx.fragment.app.Fragment
 import androidx.preference.Preference
 import androidx.preference.PreferenceManager
 import androidx.test.core.app.ApplicationProvider
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import com.android.dx.mockito.inline.extended.ExtendedMockito
-import com.android.internal.telephony.PhoneConstants
+import com.android.settings.R
 import com.android.settings.core.BasePreferenceController
 import com.android.settings.network.SubscriptionInfoListViewModel
 import com.android.settings.network.SubscriptionUtil
-import com.android.settingslib.CustomDialogPreferenceCompat
 import com.google.common.truth.Truth.assertThat
 import kotlinx.coroutines.runBlocking
 import org.junit.After
@@ -62,6 +60,8 @@ class MobileNetworkImeiPreferenceControllerTest {
         on { currentPhoneType } doReturn TelephonyManager.PHONE_TYPE_GSM
         on { imei } doReturn mockImei
         on { meid } doReturn mockImei
+        on { primaryImei } doReturn mockImei
+        on { activeModemCount } doReturn 2
     }
 
     private val context: Context = spy(ApplicationProvider.getApplicationContext()) {
@@ -90,7 +90,7 @@ class MobileNetworkImeiPreferenceControllerTest {
     }
 
     @Test
-    fun refreshData_getPhoneNumber_preferenceSummaryIsExpected() = runBlocking {
+    fun refreshData_getImei_preferenceSummaryIsExpected() = runBlocking {
         whenever(SubscriptionUtil.isSimHardwareVisible(context)).thenReturn(true)
         whenever(SubscriptionUtil.getActiveSubscriptions(any())).thenReturn(
             listOf(
@@ -110,6 +110,50 @@ class MobileNetworkImeiPreferenceControllerTest {
         assertThat(preference.summary).isEqualTo(mockImei)
     }
 
+    @Test
+    fun refreshData_getImeiTitle_showImei() = runBlocking {
+        whenever(SubscriptionUtil.isSimHardwareVisible(context)).thenReturn(true)
+        whenever(SubscriptionUtil.getActiveSubscriptions(any())).thenReturn(
+            listOf(
+                SUB_INFO_1,
+                SUB_INFO_2
+            )
+        )
+        var mockSubId = 2
+        controller.init(mockFragment, mockSubId)
+        mockImei = "test imei"
+        mockTelephonyManager.stub {
+            on { imei } doReturn mockImei
+            on { primaryImei } doReturn ""
+        }
+
+        controller.refreshData(SUB_INFO_2)
+
+        assertThat(preference.title).isEqualTo(context.getString(R.string.status_imei))
+    }
+
+    @Test
+    fun refreshData_getPrimaryImeiTitle_showPrimaryImei() = runBlocking {
+        whenever(SubscriptionUtil.isSimHardwareVisible(context)).thenReturn(true)
+        whenever(SubscriptionUtil.getActiveSubscriptions(any())).thenReturn(
+            listOf(
+                SUB_INFO_1,
+                SUB_INFO_2
+            )
+        )
+        var mockSubId = 2
+        controller.init(mockFragment, mockSubId)
+        mockImei = "test imei"
+        mockTelephonyManager.stub {
+            on { imei } doReturn mockImei
+            on { primaryImei } doReturn mockImei
+        }
+
+        controller.refreshData(SUB_INFO_2)
+
+        assertThat(preference.title).isEqualTo(context.getString(R.string.imei_primary))
+    }
+
     @Test
     fun getAvailabilityStatus_notSimHardwareVisible() {
         whenever(SubscriptionUtil.isSimHardwareVisible(context)).thenReturn(false)