Android: remove save icon and add up button

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/cheats/ui/CheatsActivity.java

@@ -7,7 +7,6 @@ import android.content.Intent;
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuInflater;
-import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 
@@ -94,6 +93,9 @@ public class CheatsActivity extends AppCompatActivity
     onSelectedCheatChanged(mViewModel.getSelectedCheat().getValue());
 
     mViewModel.getOpenDetailsViewEvent().observe(this, this::openDetailsView);
+
+    // show up button
+    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
   }
 
   @Override
@@ -105,18 +107,6 @@ public class CheatsActivity extends AppCompatActivity
     return true;
   }
 
-  @Override
-  public boolean onOptionsItemSelected(MenuItem item)
-  {
-    if (item.getItemId() == R.id.menu_save_exit)
-    {
-      finish();
-      return true;
-    }
-
-    return false;
-  }
-
   @Override
   protected void onStop()
   {
@@ -179,6 +169,13 @@ public class CheatsActivity extends AppCompatActivity
     }
   }
 
+  @Override
+  public boolean onSupportNavigateUp()
+  {
+    onBackPressed();
+    return true;
+  }
+
   private void openDetailsView(boolean open)
   {
     if (open)

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

@@ -75,6 +75,9 @@ public final class SettingsActivity extends AppCompatActivity implements Setting
 
     mPresenter = new SettingsActivityPresenter(this, getSettings());
     mPresenter.onCreate(savedInstanceState, menuTag, gameID, revision, isWii, this);
+
+    // show up button
+    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
   }
 
   @Override
@@ -86,12 +89,6 @@ public final class SettingsActivity extends AppCompatActivity implements Setting
     return true;
   }
 
-  @Override
-  public boolean onOptionsItemSelected(MenuItem item)
-  {
-    return mPresenter.handleOptionsItem(item.getItemId());
-  }
-
   @Override
   protected void onSaveInstanceState(@NonNull Bundle outState)
   {
@@ -294,6 +291,13 @@ public final class SettingsActivity extends AppCompatActivity implements Setting
     mPresenter.onExtensionSettingChanged(menuTag, value);
   }
 
+  @Override
+  public boolean onSupportNavigateUp()
+  {
+    onBackPressed();
+    return true;
+  }
+
   private SettingsFragment getFragment()
   {
     return (SettingsFragment) getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG);

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

@@ -120,17 +120,6 @@ public final class SettingsActivityPresenter
     }
   }
 
-  public boolean handleOptionsItem(int itemId)
-  {
-    if (itemId == R.id.menu_save_exit)
-    {
-      mView.finish();
-      return true;
-    }
-
-    return false;
-  }
-
   public void onSettingChanged()
   {
     mShouldSave = true;

Source/Android/app/src/main/res/menu/menu_settings.xml

@@ -1,11 +1,3 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
-      xmlns:app="http://schemas.android.com/apk/res-auto">
-
-    <item
-        android:id="@+id/menu_save_exit"
-        android:title="@string/preferences_save_exit"
-        android:icon="@drawable/ic_quicksave"
-        app:showAsAction="ifRoom"/>
-
-</menu>
+      xmlns:app="http://schemas.android.com/apk/res-auto"/>