Android: Add controller rumble support

Android can be funky with controller vibration. Of the three controlers I have that contain a
vibrator(PS3, Xbox360, 2017 Shield controller), only the Xbox360 controller registered as having
a vibrator. So YYMV depending on the driver support of the device.

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/NativeLibrary.java

@@ -7,15 +7,11 @@
 package org.dolphinemu.dolphinemu;
 
 import android.app.AlertDialog;
-import android.content.Context;
-import android.os.Build;
-import android.os.VibrationEffect;
-import android.os.Vibrator;
-import android.preference.PreferenceManager;
 import android.view.Surface;
 
 import org.dolphinemu.dolphinemu.activities.EmulationActivity;
 import org.dolphinemu.dolphinemu.utils.Log;
+import org.dolphinemu.dolphinemu.utils.Rumble;
 
 import java.lang.ref.WeakReference;
 
@@ -245,22 +241,7 @@ public final class NativeLibrary
       return;
     }
 
-    if (PreferenceManager.getDefaultSharedPreferences(emulationActivity)
+    Rumble.checkRumble(padID, state);
-            .getBoolean("phoneRumble", true))
-    {
-      Vibrator vibrator = (Vibrator) emulationActivity.getSystemService(Context.VIBRATOR_SERVICE);
-      if (vibrator != null && vibrator.hasVibrator())
-      {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
-        {
-          vibrator.vibrate(VibrationEffect.createOneShot(100, VibrationEffect.DEFAULT_AMPLITUDE));
-        }
-        else
-        {
-          vibrator.vibrate(100);
-        }
-      }
-    }
   }
 
   public static native String GetUserSetting(String gameID, String Section, String Key);

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/activities/EmulationActivity.java

@@ -50,6 +50,7 @@ import org.dolphinemu.dolphinemu.utils.ControllerMappingHelper;
 import org.dolphinemu.dolphinemu.utils.FileBrowserHelper;
 import org.dolphinemu.dolphinemu.utils.Java_GCAdapter;
 import org.dolphinemu.dolphinemu.utils.Java_WiimoteAdapter;
+import org.dolphinemu.dolphinemu.utils.Rumble;
 import org.dolphinemu.dolphinemu.utils.TvUtil;
 
 import java.lang.annotation.Retention;
@@ -277,6 +278,7 @@ public final class EmulationActivity extends AppCompatActivity
 
     Java_GCAdapter.manager = (UsbManager) getSystemService(Context.USB_SERVICE);
     Java_WiimoteAdapter.manager = (UsbManager) getSystemService(Context.USB_SERVICE);
+    Rumble.initRumble(this);
 
     setContentView(R.layout.activity_emulation);
 
@@ -361,6 +363,13 @@ public final class EmulationActivity extends AppCompatActivity
     mPosition = savedInstanceState.getInt(EXTRA_GRID_POSITION);
   }
 
+  @Override
+  protected void onStop()
+  {
+    super.onStop();
+    Rumble.clear();
+  }
+
   @Override
   public void onBackPressed()
   {
@@ -693,6 +702,7 @@ public final class EmulationActivity extends AppCompatActivity
     final SharedPreferences.Editor editor = mPreferences.edit();
     editor.putBoolean("phoneRumble", state);
     editor.apply();
+    Rumble.setPhoneVibrator(state, this);
   }
 
 
@@ -950,6 +960,11 @@ public final class EmulationActivity extends AppCompatActivity
             .commit();
   }
 
+  public boolean deviceHasTouchScreen()
+  {
+    return mDeviceHasTouchScreen;
+  }
+
   public String getSelectedTitle()
   {
     return mSelectedTitle;

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/dialogs/MotionAlertDialog.java

@@ -3,14 +3,18 @@ package org.dolphinemu.dolphinemu.dialogs;
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.os.Vibrator;
 import android.preference.PreferenceManager;
 import android.view.InputDevice;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 
+import org.dolphinemu.dolphinemu.R;
 import org.dolphinemu.dolphinemu.features.settings.model.view.InputBindingSetting;
+import org.dolphinemu.dolphinemu.features.settings.utils.SettingsFile;
 import org.dolphinemu.dolphinemu.utils.ControllerMappingHelper;
 import org.dolphinemu.dolphinemu.utils.Log;
+import org.dolphinemu.dolphinemu.utils.Rumble;
 import org.dolphinemu.dolphinemu.utils.TvUtil;
 
 import java.util.ArrayList;
@@ -49,7 +53,8 @@ public final class MotionAlertDialog extends AlertDialog
       case KeyEvent.ACTION_UP:
         if (!ControllerMappingHelper.shouldKeyBeIgnored(event.getDevice(), keyCode))
         {
-          saveKeyInput(event);
+          setting.onKeyInput(event);
+          dismiss();
         }
         // Even if we ignore the key, we still consume it. Thus return true regardless.
         return true;
@@ -63,13 +68,11 @@ public final class MotionAlertDialog extends AlertDialog
   public boolean onKeyLongPress(int keyCode, KeyEvent event)
   {
     // Option to clear by long back is only needed on the TV interface
-    if (TvUtil.isLeanback(getContext()))
+    if (TvUtil.isLeanback(getContext()) && keyCode == KeyEvent.KEYCODE_BACK)
     {
-      if (keyCode == KeyEvent.KEYCODE_BACK)
+      setting.clearValue();
-      {
+      dismiss();
-        clearBinding();
+      return true;
-        return true;
-      }
     }
     return super.onKeyLongPress(keyCode, event);
   }
@@ -162,69 +165,10 @@ public final class MotionAlertDialog extends AlertDialog
       if (numMovedAxis == 1)
       {
         mWaitingForEvent = false;
-        saveMotionInput(input, lastMovedRange, lastMovedDir);
+        setting.onMotionInput(input, lastMovedRange, lastMovedDir);
+        dismiss();
       }
     }
-
     return true;
   }
-
-  /**
-   * Saves the provided key input setting both to the INI file (so native code can use it) and as
-   * an Android preference (so it persists correctly and is human-readable.)
-   *
-   * @param keyEvent KeyEvent of this key press.
-   */
-  private void saveKeyInput(KeyEvent keyEvent)
-  {
-    InputDevice device = keyEvent.getDevice();
-    String bindStr = "Device '" + device.getDescriptor() + "'-Button " + keyEvent.getKeyCode();
-    String uiString = device.getName() + ": Button " + keyEvent.getKeyCode();
-
-    saveInput(bindStr, uiString);
-  }
-
-  /**
-   * Saves the provided motion input setting both to the INI file (so native code can use it) and as
-   * an Android preference (so it persists correctly and is human-readable.)
-   *
-   * @param device      InputDevice from which the input event originated.
-   * @param motionRange MotionRange of the movement
-   * @param axisDir     Either '-' or '+'
-   */
-  private void saveMotionInput(InputDevice device, InputDevice.MotionRange motionRange,
-          char axisDir)
-  {
-    String bindStr =
-            "Device '" + device.getDescriptor() + "'-Axis " + motionRange.getAxis() + axisDir;
-    String uiString = device.getName() + ": Axis " + motionRange.getAxis() + axisDir;
-
-    saveInput(bindStr, uiString);
-  }
-
-  /**
-   * Save the input string to settings and SharedPreferences, then dismiss this Dialog.
-   */
-  private void saveInput(String bind, String ui)
-  {
-    setting.setValue(bind);
-
-    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getContext());
-    SharedPreferences.Editor editor = preferences.edit();
-
-    editor.putString(setting.getKey(), ui);
-    editor.apply();
-
-    dismiss();
-  }
-
-  private void clearBinding()
-  {
-    setting.setValue("");
-    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getContext());
-    SharedPreferences.Editor editor = preferences.edit();
-    editor.remove(setting.getKey());
-    editor.apply();
-    dismiss();
-  }
 }

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/view/InputBindingSetting.java

@@ -1,9 +1,15 @@
 package org.dolphinemu.dolphinemu.features.settings.model.view;
 
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+import android.view.InputDevice;
+import android.view.KeyEvent;
+
+import org.dolphinemu.dolphinemu.DolphinApplication;
 import org.dolphinemu.dolphinemu.features.settings.model.Setting;
 import org.dolphinemu.dolphinemu.features.settings.model.StringSetting;
 
-public final class InputBindingSetting extends SettingsItem
+public class InputBindingSetting extends SettingsItem
 {
   public InputBindingSetting(String key, String section, int titleId, Setting setting)
   {
@@ -21,6 +27,37 @@ public final class InputBindingSetting extends SettingsItem
     return setting.getValue();
   }
 
+  /**
+   * Saves the provided key input setting both to the INI file (so native code can use it) and as
+   * an Android preference (so it persists correctly and is human-readable.)
+   *
+   * @param keyEvent KeyEvent of this key press.
+   */
+  public void onKeyInput(KeyEvent keyEvent)
+  {
+    InputDevice device = keyEvent.getDevice();
+    String bindStr = "Device '" + device.getDescriptor() + "'-Button " + keyEvent.getKeyCode();
+    String uiString = device.getName() + ": Button " + keyEvent.getKeyCode();
+    setValue(bindStr, uiString);
+  }
+
+  /**
+   * Saves the provided motion input setting both to the INI file (so native code can use it) and as
+   * an Android preference (so it persists correctly and is human-readable.)
+   *
+   * @param device      InputDevice from which the input event originated.
+   * @param motionRange MotionRange of the movement
+   * @param axisDir     Either '-' or '+'
+   */
+  public void onMotionInput(InputDevice device, InputDevice.MotionRange motionRange,
+          char axisDir)
+  {
+    String bindStr =
+            "Device '" + device.getDescriptor() + "'-Axis " + motionRange.getAxis() + axisDir;
+    String uiString = device.getName() + ": Axis " + motionRange.getAxis() + axisDir;
+    setValue(bindStr, uiString);
+  }
+
   /**
    * Write a value to the backing string. If that string was previously null,
    * initializes a new one and returns it, so it can be added to the Hashmap.
@@ -28,8 +65,15 @@ public final class InputBindingSetting extends SettingsItem
    * @param bind The input that will be bound
    * @return null if overwritten successfully; otherwise, a newly created StringSetting.
    */
-  public StringSetting setValue(String bind)
+  public StringSetting setValue(String bind, String ui)
   {
+    SharedPreferences
+            preferences =
+            PreferenceManager.getDefaultSharedPreferences(DolphinApplication.getAppContext());
+    SharedPreferences.Editor editor = preferences.edit();
+    editor.putString(getKey(), ui);
+    editor.apply();
+
     if (getSetting() == null)
     {
       StringSetting setting = new StringSetting(getKey(), getSection(), bind);
@@ -44,6 +88,11 @@ public final class InputBindingSetting extends SettingsItem
     }
   }
 
+  public void clearValue()
+  {
+    setValue("", "");
+  }
+
   @Override
   public int getType()
   {

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/view/RumbleBindingSetting.java

@@ -0,0 +1,75 @@
+package org.dolphinemu.dolphinemu.features.settings.model.view;
+
+import android.content.SharedPreferences;
+import android.content.res.Resources;
+import android.os.Vibrator;
+import android.view.InputDevice;
+import android.view.KeyEvent;
+
+import org.dolphinemu.dolphinemu.DolphinApplication;
+import org.dolphinemu.dolphinemu.R;
+import org.dolphinemu.dolphinemu.features.settings.model.Setting;
+import org.dolphinemu.dolphinemu.features.settings.model.StringSetting;
+import org.dolphinemu.dolphinemu.utils.Rumble;
+
+public class RumbleBindingSetting extends InputBindingSetting
+{
+
+  public RumbleBindingSetting(String key, String section, int titleId, Setting setting)
+  {
+    super(key, section, titleId, setting);
+  }
+
+  @Override
+  public String getValue()
+  {
+    if (getSetting() == null)
+    {
+      return "";
+    }
+
+    StringSetting setting = (StringSetting) getSetting();
+    return setting.getValue();
+  }
+
+  /**
+   * Just need the device when saving rumble.
+   */
+  @Override
+  public void onKeyInput(KeyEvent keyEvent)
+  {
+    saveRumble(keyEvent.getDevice());
+  }
+
+  /**
+   * Just need the device when saving rumble.
+   */
+  @Override
+  public void onMotionInput(InputDevice device,
+          InputDevice.MotionRange motionRange,
+          char axisDir)
+  {
+    saveRumble(device);
+  }
+
+  private void saveRumble(InputDevice device)
+  {
+    Vibrator vibrator = device.getVibrator();
+    if (vibrator != null && vibrator.hasVibrator())
+    {
+      setValue(device.getDescriptor(), device.getName());
+      Rumble.doRumble(vibrator);
+    }
+    else
+    {
+      setValue("",
+              DolphinApplication.getAppContext().getString(R.string.rumble_not_found));
+    }
+  }
+
+  @Override
+  public int getType()
+  {
+    return TYPE_RUMBLE_BINDING;
+  }
+}

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/model/view/SettingsItem.java

@@ -19,6 +19,7 @@ public abstract class SettingsItem
   public static final int TYPE_SUBMENU = 4;
   public static final int TYPE_INPUT_BINDING = 5;
   public static final int TYPE_STRING_SINGLE_CHOICE = 6;
+  public static final int TYPE_RUMBLE_BINDING = 7;
 
   private String mKey;
   private String mSection;

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsAdapter.java

@@ -21,6 +21,7 @@ import org.dolphinemu.dolphinemu.features.settings.model.Settings;
 import org.dolphinemu.dolphinemu.features.settings.model.StringSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.view.CheckBoxSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.view.InputBindingSetting;
+import org.dolphinemu.dolphinemu.features.settings.model.view.RumbleBindingSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.view.SettingsItem;
 import org.dolphinemu.dolphinemu.features.settings.model.view.SingleChoiceSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.view.SliderSetting;
@@ -29,6 +30,7 @@ import org.dolphinemu.dolphinemu.features.settings.model.view.SubmenuSetting;
 import org.dolphinemu.dolphinemu.features.settings.ui.viewholder.CheckBoxSettingViewHolder;
 import org.dolphinemu.dolphinemu.features.settings.ui.viewholder.HeaderViewHolder;
 import org.dolphinemu.dolphinemu.features.settings.ui.viewholder.InputBindingSettingViewHolder;
+import org.dolphinemu.dolphinemu.features.settings.ui.viewholder.RumbleBindingViewHolder;
 import org.dolphinemu.dolphinemu.features.settings.ui.viewholder.SettingViewHolder;
 import org.dolphinemu.dolphinemu.features.settings.ui.viewholder.SingleChoiceViewHolder;
 import org.dolphinemu.dolphinemu.features.settings.ui.viewholder.SliderViewHolder;
@@ -90,6 +92,10 @@ public final class SettingsAdapter extends RecyclerView.Adapter<SettingViewHolde
         view = inflater.inflate(R.layout.list_item_setting, parent, false);
         return new InputBindingSettingViewHolder(view, this, mContext);
 
+      case SettingsItem.TYPE_RUMBLE_BINDING:
+        view = inflater.inflate(R.layout.list_item_setting, parent, false);
+        return new RumbleBindingViewHolder(view, this, mContext);
+
       default:
         Log.error("[SettingsAdapter] Invalid view type: " + viewType);
         return null;
@@ -216,19 +222,17 @@ public final class SettingsAdapter extends RecyclerView.Adapter<SettingViewHolde
   {
     final MotionAlertDialog dialog = new MotionAlertDialog(mContext, item);
     dialog.setTitle(R.string.input_binding);
-    dialog.setMessage(String.format(mContext.getString(R.string.input_binding_description),
+    dialog.setMessage(String.format(mContext.getString(
+            item instanceof RumbleBindingSetting ?
+                    R.string.input_rumble_description : R.string.input_binding_description),
             mContext.getString(item.getNameId())));
     dialog.setButton(AlertDialog.BUTTON_NEGATIVE, mContext.getString(R.string.cancel), this);
     dialog.setButton(AlertDialog.BUTTON_NEUTRAL, mContext.getString(R.string.clear),
             (dialogInterface, i) ->
             {
-              item.setValue("");
+              SharedPreferences preferences =
-
-              SharedPreferences sharedPreferences =
                       PreferenceManager.getDefaultSharedPreferences(mContext);
-              SharedPreferences.Editor editor = sharedPreferences.edit();
+              item.clearValue();
-              editor.remove(item.getKey());
-              editor.apply();
             });
     dialog.setOnDismissListener(dialog1 ->
     {

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/SettingsFragmentPresenter.java

@@ -14,6 +14,7 @@ import org.dolphinemu.dolphinemu.features.settings.model.StringSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.view.CheckBoxSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.view.HeaderSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.view.InputBindingSetting;
+import org.dolphinemu.dolphinemu.features.settings.model.view.RumbleBindingSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.view.SettingsItem;
 import org.dolphinemu.dolphinemu.features.settings.model.view.SingleChoiceSetting;
 import org.dolphinemu.dolphinemu.features.settings.model.view.SliderSetting;
@@ -632,6 +633,8 @@ public final class SettingsFragmentPresenter
               bindingsSection.getSetting(SettingsFile.KEY_GCBIND_DPAD_LEFT + gcPadNumber);
       Setting bindDPadRight =
               bindingsSection.getSetting(SettingsFile.KEY_GCBIND_DPAD_RIGHT + gcPadNumber);
+      Setting gcEmuRumble =
+              bindingsSection.getSetting(SettingsFile.KEY_EMU_RUMBLE + gcPadNumber);
 
       sl.add(new HeaderSetting(null, null, R.string.generic_buttons, 0));
       sl.add(new InputBindingSetting(SettingsFile.KEY_GCBIND_A + gcPadNumber,
@@ -682,6 +685,11 @@ public final class SettingsFragmentPresenter
               Settings.SECTION_BINDINGS, R.string.generic_left, bindDPadLeft));
       sl.add(new InputBindingSetting(SettingsFile.KEY_GCBIND_DPAD_RIGHT + gcPadNumber,
               Settings.SECTION_BINDINGS, R.string.generic_right, bindDPadRight));
+
+
+      sl.add(new HeaderSetting(null, null, R.string.emulation_control_rumble, 0));
+      sl.add(new RumbleBindingSetting(SettingsFile.KEY_EMU_RUMBLE + gcPadNumber,
+              Settings.SECTION_BINDINGS, R.string.emulation_control_rumble, gcEmuRumble));
     }
     else // Adapter
     {
@@ -761,6 +769,8 @@ public final class SettingsFragmentPresenter
             bindingsSection.getSetting(SettingsFile.KEY_WIIBIND_DPAD_LEFT + wiimoteNumber);
     Setting bindDPadRight =
             bindingsSection.getSetting(SettingsFile.KEY_WIIBIND_DPAD_RIGHT + wiimoteNumber);
+    Setting wiiEmuRumble =
+            bindingsSection.getSetting(SettingsFile.KEY_EMU_RUMBLE + wiimoteNumber);
 
     sl.add(new SingleChoiceSetting(SettingsFile.KEY_WIIMOTE_EXTENSION,
             Settings.SECTION_WIIMOTE + (wiimoteNumber - 3), R.string.wiimote_extensions,
@@ -843,6 +853,11 @@ public final class SettingsFragmentPresenter
             Settings.SECTION_BINDINGS, R.string.generic_left, bindDPadLeft));
     sl.add(new InputBindingSetting(SettingsFile.KEY_WIIBIND_DPAD_RIGHT + wiimoteNumber,
             Settings.SECTION_BINDINGS, R.string.generic_right, bindDPadRight));
+
+
+    sl.add(new HeaderSetting(null, null, R.string.emulation_control_rumble, 0));
+    sl.add(new RumbleBindingSetting(SettingsFile.KEY_EMU_RUMBLE + wiimoteNumber,
+            Settings.SECTION_BINDINGS, R.string.emulation_control_rumble, wiiEmuRumble));
   }
 
   private void addExtensionTypeSettings(ArrayList<SettingsItem> sl, int wiimoteNumber,

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/ui/viewholder/RumbleBindingViewHolder.java

@@ -0,0 +1,53 @@
+package org.dolphinemu.dolphinemu.features.settings.ui.viewholder;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+import android.view.View;
+import android.widget.TextView;
+
+import org.dolphinemu.dolphinemu.R;
+import org.dolphinemu.dolphinemu.features.settings.model.view.RumbleBindingSetting;
+import org.dolphinemu.dolphinemu.features.settings.model.view.SettingsItem;
+import org.dolphinemu.dolphinemu.features.settings.ui.SettingsAdapter;
+
+public class RumbleBindingViewHolder extends SettingViewHolder
+{
+  private RumbleBindingSetting mItem;
+
+  private TextView mTextSettingName;
+  private TextView mTextSettingDescription;
+
+  private Context mContext;
+
+  public RumbleBindingViewHolder(View itemView, SettingsAdapter adapter, Context context)
+  {
+    super(itemView, adapter);
+
+    mContext = context;
+  }
+
+  @Override
+  protected void findViews(View root)
+  {
+    mTextSettingName = (TextView) root.findViewById(R.id.text_setting_name);
+    mTextSettingDescription = (TextView) root.findViewById(R.id.text_setting_description);
+  }
+
+  @Override
+  public void bind(SettingsItem item)
+  {
+    SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(mContext);
+
+    mItem = (RumbleBindingSetting) item;
+
+    mTextSettingName.setText(item.getNameId());
+    mTextSettingDescription.setText(sharedPreferences.getString(mItem.getKey(), ""));
+  }
+
+  @Override
+  public void onClick(View clicked)
+  {
+    getAdapter().onInputBindingClick(mItem, getAdapterPosition());
+  }
+}

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/settings/utils/SettingsFile.java

@@ -115,6 +115,8 @@ public final class SettingsFile
   public static final String KEY_GCADAPTER_RUMBLE = "AdapterRumble";
   public static final String KEY_GCADAPTER_BONGOS = "SimulateKonga";
 
+  public static final String KEY_EMU_RUMBLE = "EmuRumble";
+
   public static final String KEY_WIIMOTE_TYPE = "Source";
   public static final String KEY_WIIMOTE_EXTENSION = "Extension";
 

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/Rumble.java

@@ -0,0 +1,98 @@
+package org.dolphinemu.dolphinemu.utils;
+
+import android.content.Context;
+import android.os.Build;
+import android.os.VibrationEffect;
+import android.os.Vibrator;
+import android.preference.PreferenceManager;
+import android.util.SparseArray;
+import android.view.InputDevice;
+
+import org.dolphinemu.dolphinemu.activities.EmulationActivity;
+import org.dolphinemu.dolphinemu.features.settings.model.Settings;
+import org.dolphinemu.dolphinemu.features.settings.model.StringSetting;
+import org.dolphinemu.dolphinemu.features.settings.utils.SettingsFile;
+
+import java.util.HashMap;
+
+public class Rumble
+{
+  private static Vibrator phoneVibrator;
+  private static SparseArray<Vibrator> emuVibrators;
+
+  public static void initRumble(EmulationActivity activity)
+  {
+    if (activity.deviceHasTouchScreen() &&
+            PreferenceManager.getDefaultSharedPreferences(activity)
+                    .getBoolean("phoneRumble", true))
+    {
+      setPhoneVibrator(true, activity);
+    }
+
+    emuVibrators = new SparseArray<>();
+    for (int i = 0; i < 8; i++)
+    {
+      StringSetting deviceName =
+              (StringSetting) activity.getSettings().getSection(Settings.SECTION_BINDINGS)
+                      .getSetting(SettingsFile.KEY_EMU_RUMBLE + i);
+      if (deviceName != null && !deviceName.getValue().isEmpty())
+      {
+        for (int id : InputDevice.getDeviceIds())
+        {
+          InputDevice device = InputDevice.getDevice(id);
+          if (deviceName.getValue().equals(device.getDescriptor()))
+          {
+            Vibrator vib = device.getVibrator();
+            if (vib != null && vib.hasVibrator())
+              emuVibrators.put(i, vib);
+          }
+        }
+      }
+    }
+  }
+
+  public static void setPhoneVibrator(boolean set, EmulationActivity activity)
+  {
+    if (set)
+    {
+      Vibrator vib = (Vibrator) activity.getSystemService(Context.VIBRATOR_SERVICE);
+      if (vib != null && vib.hasVibrator())
+        phoneVibrator = vib;
+    }
+    else
+    {
+      phoneVibrator = null;
+    }
+  }
+
+  public static void clear()
+  {
+    phoneVibrator = null;
+    emuVibrators.clear();
+  }
+
+  public static void checkRumble(int padId, double state)
+  {
+    if (phoneVibrator != null)
+      doRumble(phoneVibrator);
+
+    if (emuVibrators.get(padId) != null)
+      doRumble(emuVibrators.get(padId));
+  }
+
+  public static void doRumble(Vibrator vib)
+  {
+    // Check again that it exists and can vibrate
+    if (vib != null && vib.hasVibrator())
+    {
+      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
+      {
+        vib.vibrate(VibrationEffect.createOneShot(100, VibrationEffect.DEFAULT_AMPLITUDE));
+      }
+      else
+      {
+        vib.vibrate(100);
+      }
+    }
+  }
+}

Source/Android/app/src/main/res/values/strings.xml

@@ -40,6 +40,7 @@
 
     <string name="input_binding">Input Binding</string>
     <string name="input_binding_description">Press or move an input to bind it to %1$s.</string>
+    <string name="input_rumble_description">Press or move any input to set rumble.</string>
 
     <!-- Generic buttons (Shared with lots of stuff) -->
     <string name="generic_buttons">Buttons</string>
@@ -291,6 +292,9 @@
     <string name="header_wiimote_general">General</string>
     <string name="header_controllers">Controllers</string>
 
+    <!-- Rumble -->
+    <string name="rumble_not_found">Device rumble not found</string>
+
     <string name="write_permission_needed">You need to allow write access to external storage for the emulator to work</string>
     <string name="load_settings">Loading Settings...</string>
     <string name="emulation_change_disc">Change Disc</string>