Implemented switch for sliding finger across dpad + fixed sensitivity

src/android/app/src/main/java/org/citra/citra_emu/activities/EmulationActivity.java

@@ -68,6 +68,7 @@ public final class EmulationActivity extends AppCompatActivity {
     public static final int MENU_ACTION_LOAD_AMIIBO = 13;
     public static final int MENU_ACTION_REMOVE_AMIIBO = 14;
     public static final int MENU_ACTION_JOYSTICK_REL_CENTER = 15;
+    public static final int MENU_ACTION_DPAD_SLIDE_ENABLE = 16;
 
     public static final int REQUEST_SELECT_AMIIBO = 2;
     private static final int EMULATION_RUNNING_NOTIFICATION = 0x1000;
@@ -104,6 +105,8 @@ public final class EmulationActivity extends AppCompatActivity {
                 .append(R.id.menu_emulation_amiibo_remove, EmulationActivity.MENU_ACTION_REMOVE_AMIIBO);
         buttonsActionsMap.append(R.id.menu_emulation_joystick_rel_center,
                 EmulationActivity.MENU_ACTION_JOYSTICK_REL_CENTER);
+        buttonsActionsMap.append(R.id.menu_emulation_dpad_slide_enable,
+                EmulationActivity.MENU_ACTION_DPAD_SLIDE_ENABLE);
     }
 
     private View mDecorView;
@@ -292,6 +295,7 @@ public final class EmulationActivity extends AppCompatActivity {
 
         menu.findItem(layoutOptionMenuItem).setChecked(true);
         menu.findItem(R.id.menu_emulation_joystick_rel_center).setChecked(EmulationMenuSettings.getJoystickRelCenter());
+        menu.findItem(R.id.menu_emulation_dpad_slide_enable).setChecked(EmulationMenuSettings.getDpadSlideEnable());
         menu.findItem(R.id.menu_emulation_show_fps).setChecked(EmulationMenuSettings.getShowFps());
         menu.findItem(R.id.menu_emulation_swap_screens).setChecked(EmulationMenuSettings.getSwapScreens());
         menu.findItem(R.id.menu_emulation_show_overlay).setChecked(EmulationMenuSettings.getShowOverlay());
@@ -395,9 +399,14 @@ public final class EmulationActivity extends AppCompatActivity {
                 break;
 
             case MENU_ACTION_JOYSTICK_REL_CENTER:
-                final boolean isEnabled = !EmulationMenuSettings.getJoystickRelCenter();
+                final boolean isJoystickRelCenterEnabled = !EmulationMenuSettings.getJoystickRelCenter();
-                EmulationMenuSettings.setJoystickRelCenter(isEnabled);
+                EmulationMenuSettings.setJoystickRelCenter(isJoystickRelCenterEnabled);
-                item.setChecked(isEnabled);
+                item.setChecked(isJoystickRelCenterEnabled);
+                break;
+            case MENU_ACTION_DPAD_SLIDE_ENABLE:
+                final boolean isDpadSlideEnabled = !EmulationMenuSettings.getDpadSlideEnable();
+                EmulationMenuSettings.setDpadSlideEnable(isDpadSlideEnabled);
+                item.setChecked(isDpadSlideEnabled);
                 break;
         }
 

src/android/app/src/main/java/org/citra/citra_emu/overlay/InputOverlay.java

@@ -52,6 +52,7 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener {
 
     // Stores the ID of the pointer that interacted with the 3DS touchscreen.
     private int mTouchscreenPointerId = -1;
+
     /**
      * Constructor
      *
@@ -439,6 +440,9 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener {
                         boolean down = false;
                         boolean left = false;
                         boolean right = false;
+                        if (EmulationMenuSettings.getDpadSlideEnable() ||
+                                (event.getAction() & MotionEvent.ACTION_MASK) == MotionEvent.ACTION_DOWN ||
+                                (event.getAction() & MotionEvent.ACTION_MASK) == MotionEvent.ACTION_POINTER_DOWN) {
                             if (AxisY < -InputOverlayDrawableDpad.VIRT_AXIS_DEADZONE) {
                                 NativeLibrary.onGamePadEvent(NativeLibrary.TouchScreenDevice, dpad.getId(0),
                                         NativeLibrary.ButtonState.PRESSED);
@@ -498,6 +502,7 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener {
                     }
                 }
             }
+        }
 
         for (InputOverlayDrawableJoystick joystick : overlayJoysticks) {
             joystick.TrackEvent(event);

src/android/app/src/main/java/org/citra/citra_emu/overlay/InputOverlayDrawableDpad.java

@@ -27,7 +27,7 @@ public final class InputOverlayDrawableDpad {
     public static final int STATE_PRESSED_UP_RIGHT = 6;
     public static final int STATE_PRESSED_DOWN_LEFT = 7;
     public static final int STATE_PRESSED_DOWN_RIGHT = 8;
-    public static final float VIRT_AXIS_DEADZONE = 0.2f;
+    public static final float VIRT_AXIS_DEADZONE = 0.5f;
     // The ID identifying what type of button this Drawable represents.
     private int[] mButtonType = new int[4];
     private int mTrackId;

src/android/app/src/main/java/org/citra/citra_emu/utils/EmulationMenuSettings.java

@@ -26,6 +26,16 @@ public class EmulationMenuSettings {
         editor.apply();
     }
 
+    public static boolean getDpadSlideEnable() {
+        return mPreferences.getBoolean("EmulationMenuSettings_DpadSlideEnable", true);
+    }
+
+    public static void setDpadSlideEnable(boolean value) {
+        final SharedPreferences.Editor editor = mPreferences.edit();
+        editor.putBoolean("EmulationMenuSettings_DpadSlideEnable", value);
+        editor.apply();
+    }
+
     public static int getLandscapeScreenLayout() {
         return mPreferences.getInt("EmulationMenuSettings_LandscapeScreenLayout", LayoutOption_MobileLandscape);
     }

src/android/app/src/main/res/menu/menu_emulation.xml

@@ -24,6 +24,10 @@
                     android:id="@+id/menu_emulation_joystick_rel_center"
                     android:checkable="true"
                     android:title="@string/emulation_control_joystick_rel_center"/>
+                <item
+                    android:id="@+id/menu_emulation_dpad_slide_enable"
+                    android:checkable="true"
+                    android:title="@string/emulation_control_dpad_slide_enable" />
             </group>
 
             <item

src/android/app/src/main/res/values/strings.xml

@@ -150,6 +150,7 @@
     <string name="emulation_toggle_controls">Toggle Controls</string>
     <string name="emulation_control_scale">Adjust Scale</string>
     <string name="emulation_control_joystick_rel_center">Relative Stick Center</string>
+    <string name="emulation_control_dpad_slide_enable">Enable DPad Sliding</string>
     <string name="emulation_open_settings">Open Settings</string>
     <string name="emulation_switch_screen_layout">Landscape Screen Layout</string>
     <string name="emulation_screen_layout_landscape">Default</string>