build: migrate to androidx
* use androidx support library
* update gradle
* update dependencies
Change-Id: Iba7a2734e783a4ce0d5e6459dc33b9036e46d2a5
diff --git a/ring-android/app/src/main/java/cx/ring/settings/SettingsFragment.java b/ring-android/app/src/main/java/cx/ring/settings/SettingsFragment.java
index ad95f34..d06ce57 100644
--- a/ring-android/app/src/main/java/cx/ring/settings/SettingsFragment.java
+++ b/ring-android/app/src/main/java/cx/ring/settings/SettingsFragment.java
@@ -24,10 +24,10 @@
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.design.widget.Snackbar;
-import android.support.v4.content.ContextCompat;
-import android.support.v7.app.AlertDialog;
+import androidx.annotation.NonNull;
+import com.google.android.material.snackbar.Snackbar;
+import androidx.core.content.ContextCompat;
+import androidx.appcompat.app.AlertDialog;
import android.text.TextUtils;
import android.view.Menu;
import android.view.MenuInflater;