Integrated setup help and privacy information

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

@@ -0,0 +1,75 @@
+package eu.faircode.email;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.os.Bundle;
+import android.text.Spanned;
+import android.text.method.LinkMovementMethod;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.io.InputStream;
+
+import io.noties.markwon.Markwon;
+
+public class FragmentDialogMarkdown extends DialogFragmentEx {
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
+        final View dview = LayoutInflater.from(getContext()).inflate(R.layout.dialog_markdown, null);
+        final TextView tvMarkdown = dview.findViewById(R.id.tvMarkdown);
+        final ContentLoadingProgressBar pbWait = dview.findViewById(R.id.pbWait);
+
+        tvMarkdown.setText(null);
+
+        Dialog dialog = new Dialog(getContext());
+        //dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
+        dialog.setContentView(dview);
+        dialog.getWindow().setLayout(
+                WindowManager.LayoutParams.MATCH_PARENT,
+                WindowManager.LayoutParams.MATCH_PARENT);
+
+        new SimpleTask<Spanned>() {
+            @Override
+            protected void onPreExecute(Bundle args) {
+                tvMarkdown.setVisibility(View.GONE);
+                pbWait.setVisibility(View.VISIBLE);
+            }
+
+            @Override
+            protected void onPostExecute(Bundle args) {
+                tvMarkdown.setVisibility(View.VISIBLE);
+                pbWait.setVisibility(View.GONE);
+            }
+
+            @Override
+            protected Spanned onExecute(Context context, Bundle args) throws Throwable {
+                String name = args.getString("name");
+                try (InputStream is = context.getAssets().open(name)) {
+                    byte[] buffer = new byte[is.available()];
+                    is.read(buffer);
+                    Markwon markwon = Markwon.create(context);
+                    return markwon.toMarkdown(new String(buffer));
+                }
+            }
+
+            @Override
+            protected void onExecuted(Bundle args, Spanned markdown) {
+                tvMarkdown.setText(markdown);
+                tvMarkdown.setMovementMethod(LinkMovementMethod.getInstance());
+            }
+
+            @Override
+            protected void onException(Bundle args, Throwable ex) {
+                Helper.unexpectedError(getFragmentManager(), ex);
+            }
+        }.execute(getContext(), getActivity(), getArguments(), "markdown:read");
+
+        return dialog;
+    }
+}