Small improvement

app/src/main/java/eu/faircode/email/ActivityDSN.java

@@ -73,7 +73,7 @@ public class ActivityDSN extends ActivityBase {
             protected Result onExecute(Context context, Bundle args) throws Throwable {
                 Uri uri = args.getParcelable("uri");
 
-                if ("file".equals(uri.getScheme()) &&
+                if (!"content".equals(uri.getScheme()) &&
                         !Helper.hasPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE)) {
                     Log.w("DSN uri=" + uri);
                     throw new IllegalArgumentException(context.getString(R.string.title_no_stream));

app/src/main/java/eu/faircode/email/ActivityEML.java

@@ -96,7 +96,7 @@ public class ActivityEML extends ActivityBase {
             protected Result onExecute(Context context, Bundle args) throws Throwable {
                 Uri uri = args.getParcelable("uri");
 
-                if ("file".equals(uri.getScheme()) &&
+                if (!"content".equals(uri.getScheme()) &&
                         !Helper.hasPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE)) {
                     Log.w("EML uri=" + uri);
                     throw new IllegalArgumentException(context.getString(R.string.title_no_stream));

app/src/main/java/eu/faircode/email/ActivitySetup.java

@@ -463,7 +463,7 @@ public class ActivitySetup extends ActivityBase implements FragmentManager.OnBac
                 Uri uri = args.getParcelable("uri");
                 String password = args.getString("password");
 
-                if ("file".equals(uri.getScheme())) {
+                if (!"content".equals(uri.getScheme())) {
                     Log.w("Export uri=" + uri);
                     throw new IllegalArgumentException(context.getString(R.string.title_no_stream));
                 }
@@ -642,7 +642,7 @@ public class ActivitySetup extends ActivityBase implements FragmentManager.OnBac
                 Uri uri = args.getParcelable("uri");
                 String password = args.getString("password");
 
-                if ("file".equals(uri.getScheme())) {
+                if (!"content".equals(uri.getScheme())) {
                     Log.w("Import uri=" + uri);
                     throw new IllegalArgumentException(context.getString(R.string.title_no_stream));
                 }

app/src/main/java/eu/faircode/email/Core.java

@@ -3169,7 +3169,7 @@ class Core {
         }
 
         Uri uri = (sound == null ? null : Uri.parse(sound));
-        if (uri == null || "file".equals(uri.getScheme()))
+        if (uri == null || !"content".equals(uri.getScheme()))
             uri = null;
         Log.i("Notify sound=" + uri);
 

app/src/main/java/eu/faircode/email/FragmentBase.java

@@ -320,7 +320,7 @@ public class FragmentBase extends Fragment {
                 long id = args.getLong("id");
                 Uri uri = args.getParcelable("uri");
 
-                if ("file".equals(uri.getScheme())) {
+                if (!"content".equals(uri.getScheme())) {
                     Log.w("Save attachment uri=" + uri);
                     throw new IllegalArgumentException(context.getString(R.string.title_no_stream));
                 }

app/src/main/java/eu/faircode/email/FragmentCompose.java

@@ -1962,7 +1962,7 @@ public class FragmentCompose extends FragmentBase {
                                                   boolean image) throws IOException {
         Log.w("Add attachment uri=" + uri);
 
-        if ("file".equals(uri.getScheme()) &&
+        if (!"content".equals(uri.getScheme()) &&
                 !Helper.hasPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE)) {
             Log.w("Add attachment uri=" + uri);
             throw new SecurityException("Add attachment with file scheme");

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -3867,7 +3867,7 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
                 long id = args.getLong("id");
                 Uri uri = args.getParcelable("uri");
 
-                if ("file".equals(uri.getScheme())) {
+                if (!"content".equals(uri.getScheme())) {
                     Log.w("Save raw uri=" + uri);
                     throw new IllegalArgumentException(context.getString(R.string.title_no_stream));
                 }

app/src/main/java/eu/faircode/email/FragmentOptionsNotifications.java

@@ -430,7 +430,7 @@ public class FragmentOptionsNotifications extends FragmentBase implements Shared
 
     private void onSelectSound(Uri uri) {
         Log.i("Selected ringtone=" + uri);
-        if (uri != null && "file".equals(uri.getScheme()))
+        if (uri != null && !"content".equals(uri.getScheme()))
             uri = null;
 
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());