Compat changes after 2.0 (COMMUNITY) (#2844)

* Replace android.widget.Button with Button

* Replace getColor with getColorCompat

Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>
Co-authored-by: Mohamed <mohamed.metwalli@sap.com>

Corona-Warn-App/src/main/java/de/rki/coronawarnapp/ui/main/MainActivity.kt

@@ -27,6 +27,7 @@ import de.rki.coronawarnapp.ui.setupWithNavController2
 import de.rki.coronawarnapp.util.AppShortcuts
 import de.rki.coronawarnapp.util.CWADebug
 import de.rki.coronawarnapp.util.ConnectivityHelper
+import de.rki.coronawarnapp.util.ContextExtensions.getColorCompat
 import de.rki.coronawarnapp.util.DialogHelper
 import de.rki.coronawarnapp.util.device.PowerManagement
 import de.rki.coronawarnapp.util.di.AppInjector
@@ -114,7 +115,7 @@ class MainActivity : AppCompatActivity(), HasAndroidInjector {
                 if (count > 0) {
                     val badge = getOrCreateBadge(targetId)
                     badge.number = count
-                    badge.badgeTextColor = getColor(android.R.color.white)
+                    badge.badgeTextColor = getColorCompat(android.R.color.white)
                 } else {
                     removeBadge(targetId)
                 }

Corona-Warn-App/src/main/res/layout/trace_location_organizer_qr_code_info_fragment.xml

@@ -166,7 +166,7 @@
         </androidx.constraintlayout.widget.ConstraintLayout>
     </ScrollView>
 
-    <android.widget.Button
+    <Button
         android:id="@+id/trace_location_qr_info_understand_button"
         style="@style/buttonPrimary"
         android:layout_width="0dp"