app: pad Main and Settings for system bar insets

targetSdk 35 makes every window edge-to-edge on Android 15. Neither
activity handled insets, so Main drew its header under the status bar
and the Settings ScrollView started at window y=0: the framework action
bar covered its first 80dp and the navigation bar covered the last rows.

Pad both roots by the system bar insets. Main adds the IME inset as
well, since an edge-to-edge window is not resized when the keyboard
opens. Settings drops the framework action bar and draws its own title
like Main already does, which removes the action-bar-versus-inset
interaction entirely.

Reported on the F-Droid submission (fdroiddata!41394).

6 files changed, 61 insertions, 2 deletions

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 540a499..91e3725 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -37,7 +37,8 @@
         <activity
             android:name=".SettingsActivity"
             android:exported="false"
-            android:label="@string/settings"/>
+            android:label="@string/settings"
+            android:theme="@style/Theme.Scrcpy.NoActionBar"/>
 
         <service
             android:name=".Sessions"
diff --git a/app/src/main/java/invalid/lena/scrcpy/Main.java b/app/src/main/java/invalid/lena/scrcpy/Main.java
index 2f95375..eb8d400 100644
--- a/app/src/main/java/invalid/lena/scrcpy/Main.java
+++ b/app/src/main/java/invalid/lena/scrcpy/Main.java
@@ -6,6 +6,7 @@ import android.content.Intent;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.view.View;
+import android.view.WindowInsets;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.EditText;
@@ -34,6 +35,12 @@ public final class Main extends Activity {
         super.onCreate(saved);
         setContentView(R.layout.main);
 
+        // The IME inset is in the mask too: the window is edge-to-edge, so
+        // nothing resizes it when the keyboard opens. Padding the root
+        // shrinks the weighted device list and keeps the form reachable.
+        Ui.padForInsets(findViewById(R.id.root),
+                WindowInsets.Type.systemBars() | WindowInsets.Type.ime());
+
         EditText host        = findViewById(R.id.host);
         EditText pairPort    = findViewById(R.id.pair_port);
         EditText pairCode    = findViewById(R.id.pair_code);
diff --git a/app/src/main/java/invalid/lena/scrcpy/SettingsActivity.java b/app/src/main/java/invalid/lena/scrcpy/SettingsActivity.java
index d95ecba..43b0954 100644
--- a/app/src/main/java/invalid/lena/scrcpy/SettingsActivity.java
+++ b/app/src/main/java/invalid/lena/scrcpy/SettingsActivity.java
@@ -2,6 +2,7 @@ package invalid.lena.scrcpy;
 
 import android.app.Activity;
 import android.os.Bundle;
+import android.view.WindowInsets;
 import android.widget.CheckBox;
 import android.widget.RadioButton;
 import android.widget.RadioGroup;
@@ -15,7 +16,7 @@ public final class SettingsActivity extends Activity {
     protected void onCreate(Bundle saved) {
         super.onCreate(saved);
         setContentView(R.layout.settings);
-        setTitle(R.string.settings);
+        Ui.padForInsets(findViewById(R.id.root), WindowInsets.Type.systemBars());
 
         RadioGroup videoGroup   = findViewById(R.id.video_codec);
         RadioGroup audioGroup   = findViewById(R.id.audio_codec);
diff --git a/app/src/main/java/invalid/lena/scrcpy/Ui.java b/app/src/main/java/invalid/lena/scrcpy/Ui.java
new file mode 100644
index 0000000..91b8b66
--- /dev/null
+++ b/app/src/main/java/invalid/lena/scrcpy/Ui.java
@@ -0,0 +1,34 @@
+package invalid.lena.scrcpy;
+
+import android.graphics.Insets;
+import android.view.View;
+
+// Window inset plumbing for the non-fullscreen activities.
+//
+// targetSdk 35 makes every window edge-to-edge on Android 15: the system
+// no longer insets the content view, so an unhandled layout draws under
+// the status and navigation bars. Mirror wants that and opts in itself;
+// Main and Settings do not, so they pad their root by the bar sizes.
+public final class Ui {
+
+    private Ui() {}
+
+    // Add the insets of the given WindowInsets.Type mask to whatever
+    // padding the layout already declares. Applied on top of the XML
+    // padding, not instead of it, so the layout stays the source of the
+    // base spacing.
+    public static void padForInsets(View root, int types) {
+        int left   = root.getPaddingLeft();
+        int top    = root.getPaddingTop();
+        int right  = root.getPaddingRight();
+        int bottom = root.getPaddingBottom();
+
+        root.setOnApplyWindowInsetsListener((v, insets) -> {
+            Insets in = insets.getInsets(types);
+            v.setPadding(left + in.left, top + in.top,
+                         right + in.right, bottom + in.bottom);
+            return insets;
+        });
+        root.requestApplyInsets();
+    }
+}
diff --git a/app/src/main/res/layout/main.xml b/app/src/main/res/layout/main.xml
index acd4a3c..2e722b0 100644
--- a/app/src/main/res/layout/main.xml
+++ b/app/src/main/res/layout/main.xml
@@ -1,5 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!-- Root padding is the base; Ui.padForInsets() adds the system bar and
+     IME insets to it at runtime (the window is edge-to-edge). -->
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/root"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
diff --git a/app/src/main/res/layout/settings.xml b/app/src/main/res/layout/settings.xml
index 5d4e450..76f706b 100644
--- a/app/src/main/res/layout/settings.xml
+++ b/app/src/main/res/layout/settings.xml
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!-- Title lives in the layout, not in an action bar: the window is
+     edge-to-edge, so Ui.padForInsets() on this root is what keeps the
+     content clear of the system bars. -->
 <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/root"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
@@ -10,6 +14,15 @@
         android:padding="@dimen/space_lg">
 
         <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="@dimen/space_lg"
+            android:text="@string/settings"
+            android:textColor="@color/on_surface"
+            android:textSize="22sp"
+            android:textStyle="bold"/>
+
+        <TextView
             style="@style/Note"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"