fixed test api permission dialog bug and display the latest available key date (#844)

Corona-Warn-App/src/deviceForTesters/java/de.rki.coronawarnapp/TestForAPIFragment.kt

@@ -68,6 +68,7 @@ import kotlinx.android.synthetic.deviceForTesters.fragment_test_for_a_p_i.label_
 import kotlinx.android.synthetic.deviceForTesters.fragment_test_for_a_p_i.label_exposure_summary_maximumRiskScore
 import kotlinx.android.synthetic.deviceForTesters.fragment_test_for_a_p_i.label_exposure_summary_summationRiskScore
 import kotlinx.android.synthetic.deviceForTesters.fragment_test_for_a_p_i.label_googlePlayServices_version
+import kotlinx.android.synthetic.deviceForTesters.fragment_test_for_a_p_i.label_latest_key_date
 import kotlinx.android.synthetic.deviceForTesters.fragment_test_for_a_p_i.label_my_keys
 import kotlinx.android.synthetic.deviceForTesters.fragment_test_for_a_p_i.qr_code_viewpager
 import kotlinx.android.synthetic.deviceForTesters.fragment_test_for_a_p_i.test_api_switch_last_three_hours_from_server
@@ -76,6 +77,8 @@ import kotlinx.android.synthetic.deviceForTesters.fragment_test_for_a_p_i.text_s
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
+import org.joda.time.DateTime
+import org.joda.time.DateTimeZone
 import timber.log.Timber
 import java.io.File
 import java.lang.reflect.Type
@@ -156,6 +159,8 @@ class TestForAPIFragment : Fragment(), InternalExposureNotificationPermissionHel
         internalExposureNotificationPermissionHelper =
             InternalExposureNotificationPermissionHelper(this, this)
 
+        getExposureKeys()
+
         qrPager = qr_code_viewpager
         qrPagerAdapter = QRPagerAdapter()
         qrPager.adapter = qrPagerAdapter
@@ -267,7 +272,6 @@ class TestForAPIFragment : Fragment(), InternalExposureNotificationPermissionHel
         super.onResume()
 
         updateExposureSummaryDisplay(null)
-        getExposureKeys()
     }
 
     private val prettyKey = { key: AppleLegacyKeyExchange.Key ->
@@ -437,6 +441,13 @@ class TestForAPIFragment : Fragment(), InternalExposureNotificationPermissionHel
         )
         label_my_keys.text = myKeysLabelAndCount
         text_my_keys.text = myExposureKeysJSON
+
+        myKeys?.maxBy { it.rollingStartIntervalNumber }?.rollingStartIntervalNumber?.toLong()?.let {
+            val ms = it * 60L * 10L * 1000L
+            val dateString = DateTime(ms, DateTimeZone.UTC)
+
+            label_latest_key_date.text = "Latest key is from: $dateString"
+        }
     }
 
     private fun showToast(message: String) {
@@ -453,8 +464,7 @@ class TestForAPIFragment : Fragment(), InternalExposureNotificationPermissionHel
     }
 
     override fun onKeySharePermissionGranted(keys: List<TemporaryExposureKey>) {
-        myExposureKeysJSON =
-            keysToJson(keys)
+        myExposureKeysJSON = keysToJson(keys)
         myExposureKeys = keys
         qrPagerAdapter.notifyDataSetChanged()
 

Corona-Warn-App/src/deviceForTesters/res/layout/fragment_test_for_a_p_i.xml

@@ -104,6 +104,12 @@
                 android:layout_marginTop="@dimen/spacing_normal"
                 android:text="@string/test_api_body_my_keys" />
 
+            <TextView
+                android:id="@+id/label_latest_key_date"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="Latest key is from: -" />
+
             <TextView
                 android:id="@+id/text_my_keys"
                 android:layout_width="match_parent"