Added style to answers

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

@@ -0,0 +1,73 @@
+package eu.faircode.email;
+
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.net.Uri;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
+
+import static android.app.Activity.RESULT_OK;
+
+public class FragmentDialogLink extends FragmentDialogBase {
+    private EditText etLink;
+
+    @Override
+    public void onSaveInstanceState(@NonNull Bundle outState) {
+        outState.putString("fair:link", etLink.getText().toString());
+        super.onSaveInstanceState(outState);
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
+        Uri uri = getArguments().getParcelable("uri");
+
+        View view = LayoutInflater.from(getContext()).inflate(R.layout.dialog_insert_link, null);
+        etLink = view.findViewById(R.id.etLink);
+        final TextView tvInsecure = view.findViewById(R.id.tvInsecure);
+
+        etLink.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+            }
+
+            @Override
+            public void afterTextChanged(Editable editable) {
+                Uri uri = Uri.parse(editable.toString());
+                tvInsecure.setVisibility(!uri.isOpaque() &&
+                        "http".equals(uri.getScheme()) ? View.VISIBLE : View.GONE);
+            }
+        });
+
+        if (savedInstanceState == null)
+            etLink.setText(uri == null ? "https://" : uri.toString());
+        else
+            etLink.setText(savedInstanceState.getString("fair:link"));
+
+        return new AlertDialog.Builder(getContext())
+                .setView(view)
+                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        String link = etLink.getText().toString();
+                        getArguments().putString("link", link);
+                        sendResult(RESULT_OK);
+                    }
+                })
+                .setNegativeButton(android.R.string.cancel, null)
+                .create();
+    }
+}