Refactor input event handling in the Game activity

app/src/main/java/com/limelight/Game.java

@@ -89,8 +89,7 @@ import java.util.Locale;
 public class Game extends Activity implements SurfaceHolder.Callback,
         OnGenericMotionListener, OnTouchListener, NvConnectionListener, EvdevListener,
         OnSystemUiVisibilityChangeListener, GameGestures, StreamView.InputCallbacks,
-    PerfOverlayListener, UsbDriverService.UsbDriverStateListener
+        PerfOverlayListener, UsbDriverService.UsbDriverStateListener, View.OnKeyListener {
-{
     private int lastButtonState = 0;
 
     // Only 2 touches are supported
@@ -235,6 +234,7 @@ public class Game extends Activity implements SurfaceHolder.Callback,
         // Listen for non-touch events on the game surface
         streamView = findViewById(R.id.surfaceView);
         streamView.setOnGenericMotionListener(this);
+        streamView.setOnKeyListener(this);
         streamView.setInputCallbacks(this);
 
         // Listen for touch events on the background touch view to enable trackpad mode
@@ -256,6 +256,13 @@ public class Game extends Activity implements SurfaceHolder.Callback,
                     InputDevice.SOURCE_CLASS_POSITION | // Touchpads
                     InputDevice.SOURCE_CLASS_TRACKBALL // Mice (pointer capture)
             );
+            backgroundTouchView.requestUnbufferedDispatch(
+                    InputDevice.SOURCE_CLASS_BUTTON | // Keyboards
+                    InputDevice.SOURCE_CLASS_JOYSTICK | // Gamepads
+                    InputDevice.SOURCE_CLASS_POINTER | // Touchscreens and mice (w/o pointer capture)
+                    InputDevice.SOURCE_CLASS_POSITION | // Touchpads
+                    InputDevice.SOURCE_CLASS_TRACKBALL // Mice (pointer capture)
+            );
 
             // Since the OS isn't going to batch for us, we have to batch mouse events to
             // avoid triggering a bug in GeForce Experience that can lead to massive latency.
@@ -269,9 +276,6 @@ public class Game extends Activity implements SurfaceHolder.Callback,
         inputCaptureProvider = InputCaptureManager.getInputCaptureProvider(this, this);
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            // The view must be focusable for pointer capture to work.
-            streamView.setFocusable(true);
-            streamView.setDefaultFocusHighlightEnabled(false);
             streamView.setOnCapturedPointerListener(new View.OnCapturedPointerListener() {
                 @Override
                 public boolean onCapturedPointer(View view, MotionEvent motionEvent) {
@@ -2189,4 +2193,16 @@ public class Game extends Activity implements SurfaceHolder.Callback,
         suppressPipRefCount--;
         updatePipAutoEnter();
     }
+
+    @Override
+    public boolean onKey(View view, int keyCode, KeyEvent keyEvent) {
+        switch (keyEvent.getAction()) {
+            case KeyEvent.ACTION_DOWN:
+                return handleKeyDown(keyEvent);
+            case KeyEvent.ACTION_UP:
+                return handleKeyUp(keyEvent);
+            default:
+                return false;
+        }
+    }
 }

app/src/main/res/layout/activity_game.xml

@@ -14,7 +14,13 @@
         android:id="@+id/surfaceView"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layout_gravity="center" />
+        android:layout_gravity="center"
+        android:focusable="true"
+        android:focusableInTouchMode="true"
+        android:focusedByDefault="true"
+        android:defaultFocusHighlightEnabled="false">
+        <requestFocus />
+    </com.limelight.ui.StreamView>
 
     <TextView
         android:id="@+id/performanceOverlay"