1 files changed, 63 insertions, 0 deletions
diff --git a/app/src/main/java/mygram/droid/LockActivity.java b/app/src/main/java/mygram/droid/LockActivity.java
new file mode 100644
index 0000000..dd95915
--- /dev/null
+++ b/app/src/main/java/mygram/droid/LockActivity.java
@@ -0,0 +1,63 @@
+/*
+ * mygram-droid: Android TV client for Foldergram.
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+package mygram.droid;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.text.InputType;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.Toast;
+
+/** Splash with the logo and a PIN prompt; App shows it while the app is locked. */
+public final class LockActivity extends Activity {
+	@Override
+	protected void onCreate(Bundle state) {
+		super.onCreate(state);
+		LinearLayout box = Ui.column(this);
+		ImageView logo = new ImageView(this);
+		logo.setImageResource(R.drawable.ic_launcher);
+		logo.setContentDescription("mygram");
+		int s = Ui.dp(this, 96);
+		LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(s, s);
+		lp.bottomMargin = Ui.dp(this, 24);
+		box.addView(logo, lp);
+		EditText pin = Ui.field(this, "PIN", InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_PASSWORD);
+		box.addView(pin);
+		View ok = Ui.iconButton(this, R.drawable.ic_check, "Unlock", v -> {
+			if (Prefs.checkPin(pin.getText().toString())) {
+				App.locked = false;
+				finish();
+			} else {
+				pin.setText("");
+				Toast.makeText(this, "Wrong PIN", Toast.LENGTH_SHORT).show();
+			}
+		});
+		box.addView(ok);
+		// The keyboard's done key unlocks; the D-pad cannot leave the keyboard.
+		pin.setOnEditorActionListener((v, action, event) -> ok.performClick());
+		setContentView(box);
+		pin.requestFocus();
+	}
+
+	/** Back leaves the app instead of revealing the screen underneath. */
+	@Override
+	@SuppressWarnings("deprecation") // no predictive back on this TV; onBackPressed still fires
+	public void onBackPressed() {
+		finishAffinity();
+	}
+}