Android: Convert MainActivity to Kotlin

2 files changed, 332 insertions, 441 deletions

diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/main/MainActivity.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/main/MainActivity.java
deleted file mode 100644
index 488f0909df..0000000000
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/main/MainActivity.java
+++ /dev/null
@@ -1,441 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-package org.dolphinemu.dolphinemu.ui.main;
-
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.net.Uri;
-import android.os.Bundle;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-import android.view.ViewGroup;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.core.graphics.Insets;
-import androidx.core.splashscreen.SplashScreen;
-import androidx.core.view.ViewCompat;
-import androidx.core.view.WindowCompat;
-import androidx.core.view.WindowInsetsCompat;
-import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
-
-import com.google.android.material.color.MaterialColors;
-import com.google.android.material.tabs.TabLayout;
-
-import org.dolphinemu.dolphinemu.fragments.GridOptionDialogFragment;
-import org.dolphinemu.dolphinemu.R;
-import org.dolphinemu.dolphinemu.activities.EmulationActivity;
-import org.dolphinemu.dolphinemu.adapters.PlatformPagerAdapter;
-import org.dolphinemu.dolphinemu.databinding.ActivityMainBinding;
-import org.dolphinemu.dolphinemu.features.settings.model.IntSetting;
-import org.dolphinemu.dolphinemu.features.settings.model.NativeConfig;
-import org.dolphinemu.dolphinemu.features.settings.ui.MenuTag;
-import org.dolphinemu.dolphinemu.features.settings.ui.SettingsActivity;
-import org.dolphinemu.dolphinemu.services.GameFileCacheManager;
-import org.dolphinemu.dolphinemu.ui.platform.Platform;
-import org.dolphinemu.dolphinemu.ui.platform.PlatformGamesView;
-import org.dolphinemu.dolphinemu.utils.Action1;
-import org.dolphinemu.dolphinemu.utils.AfterDirectoryInitializationRunner;
-import org.dolphinemu.dolphinemu.utils.DirectoryInitialization;
-import org.dolphinemu.dolphinemu.utils.FileBrowserHelper;
-import org.dolphinemu.dolphinemu.utils.InsetsHelper;
-import org.dolphinemu.dolphinemu.utils.PermissionsHandler;
-import org.dolphinemu.dolphinemu.utils.StartupHandler;
-import org.dolphinemu.dolphinemu.utils.ThemeHelper;
-import org.dolphinemu.dolphinemu.utils.WiiUtils;
-
-/**
- * The main Activity of the Lollipop style UI. Manages several PlatformGamesFragments, which
- * individually display a grid of available games for each Fragment, in a tabbed layout.
- */
-public final class MainActivity extends AppCompatActivity
-        implements MainView, SwipeRefreshLayout.OnRefreshListener, ThemeProvider
-{
-  private int mThemeId;
-
-  private final MainPresenter mPresenter = new MainPresenter(this, this);
-
-  private ActivityMainBinding mBinding;
-
-  @Override
-  protected void onCreate(Bundle savedInstanceState)
-  {
-    SplashScreen splashScreen = SplashScreen.installSplashScreen(this);
-    splashScreen.setKeepOnScreenCondition(
-            () -> !DirectoryInitialization.areDolphinDirectoriesReady());
-
-    ThemeHelper.setTheme(this);
-
-    super.onCreate(savedInstanceState);
-
-    mBinding = ActivityMainBinding.inflate(getLayoutInflater());
-    setContentView(mBinding.getRoot());
-
-    WindowCompat.setDecorFitsSystemWindows(getWindow(), false);
-    setInsets();
-    ThemeHelper.enableStatusBarScrollTint(this, mBinding.appbarMain);
-
-    mBinding.toolbarMain.setTitle(R.string.app_name);
-    setSupportActionBar(mBinding.toolbarMain);
-
-    // Set up the FAB.
-    mBinding.buttonAddDirectory.setOnClickListener(view -> mPresenter.onFabClick());
-    mBinding.appbarMain.addOnOffsetChangedListener((appBarLayout, verticalOffset) ->
-    {
-      if (verticalOffset == 0)
-      {
-        mBinding.buttonAddDirectory.extend();
-      }
-      else if (appBarLayout.getTotalScrollRange() == -verticalOffset)
-      {
-        mBinding.buttonAddDirectory.shrink();
-      }
-    });
-
-    mPresenter.onCreate();
-
-    // Stuff in this block only happens when this activity is newly created (i.e. not a rotation)
-    if (savedInstanceState == null)
-    {
-      StartupHandler.HandleInit(this);
-      new AfterDirectoryInitializationRunner().runWithLifecycle(this, this::checkTheme);
-    }
-
-    if (!DirectoryInitialization.isWaitingForWriteAccess(this))
-    {
-      new AfterDirectoryInitializationRunner()
-              .runWithLifecycle(this, this::setPlatformTabsAndStartGameFileCacheService);
-    }
-  }
-
-  @Override
-  protected void onResume()
-  {
-    ThemeHelper.setCorrectTheme(this);
-
-    super.onResume();
-
-    if (DirectoryInitialization.shouldStart(this))
-    {
-      DirectoryInitialization.start(this);
-      new AfterDirectoryInitializationRunner()
-              .runWithLifecycle(this, this::setPlatformTabsAndStartGameFileCacheService);
-    }
-
-    mPresenter.onResume();
-  }
-
-  @Override
-  protected void onDestroy()
-  {
-    super.onDestroy();
-    mPresenter.onDestroy();
-  }
-
-  @Override
-  protected void onStart()
-  {
-    super.onStart();
-    StartupHandler.checkSessionReset(this);
-  }
-
-  @Override
-  protected void onStop()
-  {
-    super.onStop();
-
-    if (isChangingConfigurations())
-    {
-      MainPresenter.skipRescanningLibrary();
-    }
-    else if (DirectoryInitialization.areDolphinDirectoriesReady())
-    {
-      // If the currently selected platform tab changed, save it to disk
-      NativeConfig.save(NativeConfig.LAYER_BASE);
-    }
-
-    StartupHandler.setSessionTime(this);
-  }
-
-  @Override
-  public boolean onCreateOptionsMenu(Menu menu)
-  {
-    MenuInflater inflater = getMenuInflater();
-    inflater.inflate(R.menu.menu_game_grid, menu);
-
-    if (WiiUtils.isSystemMenuInstalled())
-    {
-      int resId = WiiUtils.isSystemMenuvWii() ?
-              R.string.grid_menu_load_vwii_system_menu_installed :
-              R.string.grid_menu_load_wii_system_menu_installed;
-
-      menu.findItem(R.id.menu_load_wii_system_menu).setTitle(
-              getString(resId, WiiUtils.getSystemMenuVersion()));
-    }
-
-    return true;
-  }
-
-  /**
-   * MainView
-   */
-
-  @Override
-  public void setVersionString(String version)
-  {
-    mBinding.toolbarMain.setSubtitle(version);
-  }
-
-  @Override
-  public void launchSettingsActivity(MenuTag menuTag)
-  {
-    SettingsActivity.launch(this, menuTag);
-  }
-
-  @Override
-  public void launchFileListActivity()
-  {
-    if (DirectoryInitialization.preferOldFolderPicker(this))
-    {
-      FileBrowserHelper.openDirectoryPicker(this, FileBrowserHelper.GAME_EXTENSIONS);
-    }
-    else
-    {
-      Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
-      startActivityForResult(intent, MainPresenter.REQUEST_DIRECTORY);
-    }
-  }
-
-  @Override
-  public void launchOpenFileActivity(int requestCode)
-  {
-    Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
-    intent.addCategory(Intent.CATEGORY_OPENABLE);
-    intent.setType("*/*");
-    startActivityForResult(intent, requestCode);
-  }
-
-  /**
-   * @param requestCode An int describing whether the Activity that is returning did so successfully.
-   * @param resultCode  An int describing what Activity is giving us this callback.
-   * @param result      The information the returning Activity is providing us.
-   */
-  @Override
-  protected void onActivityResult(int requestCode, int resultCode, Intent result)
-  {
-    super.onActivityResult(requestCode, resultCode, result);
-
-    // If the user picked a file, as opposed to just backing out.
-    if (resultCode == RESULT_OK)
-    {
-      Uri uri = result.getData();
-      switch (requestCode)
-      {
-        case MainPresenter.REQUEST_DIRECTORY:
-          if (DirectoryInitialization.preferOldFolderPicker(this))
-          {
-            mPresenter.onDirectorySelected(FileBrowserHelper.getSelectedPath(result));
-          }
-          else
-          {
-            mPresenter.onDirectorySelected(result);
-          }
-          break;
-
-        case MainPresenter.REQUEST_GAME_FILE:
-          FileBrowserHelper.runAfterExtensionCheck(this, uri,
-                  FileBrowserHelper.GAME_LIKE_EXTENSIONS,
-                  () -> EmulationActivity.launch(this, result.getData().toString(), false));
-          break;
-
-        case MainPresenter.REQUEST_WAD_FILE:
-          FileBrowserHelper.runAfterExtensionCheck(this, uri, FileBrowserHelper.WAD_EXTENSION,
-                  () -> mPresenter.installWAD(result.getData().toString()));
-          break;
-
-        case MainPresenter.REQUEST_WII_SAVE_FILE:
-          FileBrowserHelper.runAfterExtensionCheck(this, uri, FileBrowserHelper.BIN_EXTENSION,
-                  () -> mPresenter.importWiiSave(result.getData().toString()));
-          break;
-
-        case MainPresenter.REQUEST_NAND_BIN_FILE:
-          FileBrowserHelper.runAfterExtensionCheck(this, uri, FileBrowserHelper.BIN_EXTENSION,
-                  () -> mPresenter.importNANDBin(result.getData().toString()));
-          break;
-      }
-    }
-    else
-    {
-      MainPresenter.skipRescanningLibrary();
-    }
-  }
-
-  @Override
-  public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
-          @NonNull int[] grantResults)
-  {
-    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
-
-    if (requestCode == PermissionsHandler.REQUEST_CODE_WRITE_PERMISSION)
-    {
-      if (grantResults[0] == PackageManager.PERMISSION_DENIED)
-      {
-        PermissionsHandler.setWritePermissionDenied();
-      }
-
-      DirectoryInitialization.start(this);
-      new AfterDirectoryInitializationRunner()
-              .runWithLifecycle(this, this::setPlatformTabsAndStartGameFileCacheService);
-    }
-  }
-
-  /**
-   * Called by the framework whenever any actionbar/toolbar icon is clicked.
-   *
-   * @param item The icon that was clicked on.
-   * @return True if the event was handled, false to bubble it up to the OS.
-   */
-  @Override
-  public boolean onOptionsItemSelected(MenuItem item)
-  {
-    return mPresenter.handleOptionSelection(item.getItemId(), this);
-  }
-
-  /**
-   * Called when the user requests a refresh by swiping down.
-   */
-  @Override
-  public void onRefresh()
-  {
-    setRefreshing(true);
-    GameFileCacheManager.startRescan();
-  }
-
-  /**
-   * Shows or hides the loading indicator.
-   */
-  @Override
-  public void setRefreshing(boolean refreshing)
-  {
-    forEachPlatformGamesView(view -> view.setRefreshing(refreshing));
-  }
-
-  /**
-   * To be called when the game file cache is updated.
-   */
-  @Override
-  public void showGames()
-  {
-    forEachPlatformGamesView(PlatformGamesView::showGames);
-  }
-
-  @Override
-  public void reloadGrid()
-  {
-    forEachPlatformGamesView(PlatformGamesView::refetchMetadata);
-  }
-
-  @Override
-  public void showGridOptions()
-  {
-    new GridOptionDialogFragment().show(getSupportFragmentManager(), "gridOptions");
-  }
-
-  private void forEachPlatformGamesView(Action1<PlatformGamesView> action)
-  {
-    for (Platform platform : Platform.values())
-    {
-      PlatformGamesView fragment = getPlatformGamesView(platform);
-      if (fragment != null)
-      {
-        action.call(fragment);
-      }
-    }
-  }
-
-  @Nullable
-  private PlatformGamesView getPlatformGamesView(Platform platform)
-  {
-    String fragmentTag =
-            "android:switcher:" + mBinding.pagerPlatforms.getId() + ":" + platform.toInt();
-
-    return (PlatformGamesView) getSupportFragmentManager().findFragmentByTag(fragmentTag);
-  }
-
-  // Don't call this before DirectoryInitialization completes.
-  private void setPlatformTabsAndStartGameFileCacheService()
-  {
-    PlatformPagerAdapter platformPagerAdapter = new PlatformPagerAdapter(
-            getSupportFragmentManager(), this);
-    mBinding.pagerPlatforms.setAdapter(platformPagerAdapter);
-    mBinding.pagerPlatforms.setOffscreenPageLimit(platformPagerAdapter.getCount());
-    mBinding.tabsPlatforms.setupWithViewPager(mBinding.pagerPlatforms);
-    mBinding.tabsPlatforms.addOnTabSelectedListener(
-            new TabLayout.ViewPagerOnTabSelectedListener(mBinding.pagerPlatforms)
-            {
-              @Override
-              public void onTabSelected(@NonNull TabLayout.Tab tab)
-              {
-                super.onTabSelected(tab);
-                IntSetting.MAIN_LAST_PLATFORM_TAB.setInt(NativeConfig.LAYER_BASE,
-                        tab.getPosition());
-              }
-            });
-
-    for (int i = 0; i < PlatformPagerAdapter.TAB_ICONS.length; i++)
-    {
-      mBinding.tabsPlatforms.getTabAt(i).setIcon(PlatformPagerAdapter.TAB_ICONS[i]);
-    }
-
-    mBinding.pagerPlatforms.setCurrentItem(IntSetting.MAIN_LAST_PLATFORM_TAB.getInt());
-
-    showGames();
-    GameFileCacheManager.startLoad();
-  }
-
-  @Override
-  public void setTheme(int themeId)
-  {
-    super.setTheme(themeId);
-    this.mThemeId = themeId;
-  }
-
-  @Override
-  public int getThemeId()
-  {
-    return mThemeId;
-  }
-
-  private void checkTheme()
-  {
-    ThemeHelper.setCorrectTheme(this);
-  }
-
-  private void setInsets()
-  {
-    ViewCompat.setOnApplyWindowInsetsListener(mBinding.appbarMain, (v, windowInsets) ->
-    {
-      Insets insets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars());
-
-      InsetsHelper.insetAppBar(insets, mBinding.appbarMain);
-
-      ViewGroup.MarginLayoutParams mlpFab =
-              (ViewGroup.MarginLayoutParams) mBinding.buttonAddDirectory.getLayoutParams();
-      int fabPadding = getResources().getDimensionPixelSize(R.dimen.spacing_large);
-      mlpFab.leftMargin = insets.left + fabPadding;
-      mlpFab.bottomMargin = insets.bottom + fabPadding;
-      mlpFab.rightMargin = insets.right + fabPadding;
-      mBinding.buttonAddDirectory.setLayoutParams(mlpFab);
-
-      mBinding.pagerPlatforms.setPadding(insets.left, 0, insets.right, 0);
-
-      InsetsHelper.applyNavbarWorkaround(insets.bottom, mBinding.workaroundView);
-      ThemeHelper.setNavigationBarColor(this,
-              MaterialColors.getColor(mBinding.appbarMain, R.attr.colorSurface));
-
-      return windowInsets;
-    });
-  }
-}
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/main/MainActivity.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/main/MainActivity.kt
new file mode 100644
index 0000000000..3a003e0574
--- /dev/null
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/main/MainActivity.kt
@@ -0,0 +1,332 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.dolphinemu.dolphinemu.ui.main
+
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Bundle
+import android.view.Menu
+import android.view.MenuItem
+import android.view.View
+import android.view.ViewGroup.MarginLayoutParams
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout.OnRefreshListener
+import com.google.android.material.appbar.AppBarLayout
+import com.google.android.material.color.MaterialColors
+import com.google.android.material.tabs.TabLayout
+import org.dolphinemu.dolphinemu.R
+import org.dolphinemu.dolphinemu.activities.EmulationActivity
+import org.dolphinemu.dolphinemu.adapters.PlatformPagerAdapter
+import org.dolphinemu.dolphinemu.databinding.ActivityMainBinding
+import org.dolphinemu.dolphinemu.features.settings.model.IntSetting
+import org.dolphinemu.dolphinemu.features.settings.model.NativeConfig
+import org.dolphinemu.dolphinemu.features.settings.ui.MenuTag
+import org.dolphinemu.dolphinemu.features.settings.ui.SettingsActivity
+import org.dolphinemu.dolphinemu.fragments.GridOptionDialogFragment
+import org.dolphinemu.dolphinemu.services.GameFileCacheManager
+import org.dolphinemu.dolphinemu.ui.platform.Platform
+import org.dolphinemu.dolphinemu.ui.platform.PlatformGamesView
+import org.dolphinemu.dolphinemu.utils.Action1
+import org.dolphinemu.dolphinemu.utils.AfterDirectoryInitializationRunner
+import org.dolphinemu.dolphinemu.utils.DirectoryInitialization
+import org.dolphinemu.dolphinemu.utils.FileBrowserHelper
+import org.dolphinemu.dolphinemu.utils.InsetsHelper
+import org.dolphinemu.dolphinemu.utils.PermissionsHandler
+import org.dolphinemu.dolphinemu.utils.StartupHandler
+import org.dolphinemu.dolphinemu.utils.ThemeHelper
+import org.dolphinemu.dolphinemu.utils.WiiUtils
+
+class MainActivity : AppCompatActivity(), MainView, OnRefreshListener, ThemeProvider {
+    override var themeId = 0
+
+    private val presenter = MainPresenter(this, this)
+
+    private lateinit var binding: ActivityMainBinding
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        installSplashScreen().setKeepOnScreenCondition { !DirectoryInitialization.areDolphinDirectoriesReady() }
+
+        ThemeHelper.setTheme(this)
+
+        super.onCreate(savedInstanceState)
+
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        WindowCompat.setDecorFitsSystemWindows(window, false)
+        setInsets()
+        ThemeHelper.enableStatusBarScrollTint(this, binding.appbarMain)
+
+        binding.toolbarMain.setTitle(R.string.app_name)
+        setSupportActionBar(binding.toolbarMain)
+
+        // Set up the FAB.
+        binding.buttonAddDirectory.setOnClickListener { presenter.onFabClick() }
+        binding.appbarMain.addOnOffsetChangedListener { appBarLayout: AppBarLayout, verticalOffset: Int ->
+            if (verticalOffset == 0) {
+                binding.buttonAddDirectory.extend()
+            } else if (appBarLayout.totalScrollRange == -verticalOffset) {
+                binding.buttonAddDirectory.shrink()
+            }
+        }
+
+        presenter.onCreate()
+
+        // Stuff in this block only happens when this activity is newly created (i.e. not a rotation)
+        if (savedInstanceState == null) {
+            StartupHandler.HandleInit(this)
+            AfterDirectoryInitializationRunner().runWithLifecycle(this) {
+                ThemeHelper.setCorrectTheme(this)
+            }
+        }
+        if (!DirectoryInitialization.isWaitingForWriteAccess(this)) {
+            AfterDirectoryInitializationRunner()
+                .runWithLifecycle(this) { setPlatformTabsAndStartGameFileCacheService() }
+        }
+    }
+
+    override fun onResume() {
+        ThemeHelper.setCorrectTheme(this)
+
+        super.onResume()
+        if (DirectoryInitialization.shouldStart(this)) {
+            DirectoryInitialization.start(this)
+            AfterDirectoryInitializationRunner()
+                .runWithLifecycle(this) { setPlatformTabsAndStartGameFileCacheService() }
+        }
+
+        presenter.onResume()
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        presenter.onDestroy()
+    }
+
+    override fun onStart() {
+        super.onStart()
+        StartupHandler.checkSessionReset(this)
+    }
+
+    override fun onStop() {
+        super.onStop()
+        if (isChangingConfigurations) {
+            MainPresenter.skipRescanningLibrary()
+        } else if (DirectoryInitialization.areDolphinDirectoriesReady()) {
+            // If the currently selected platform tab changed, save it to disk
+            NativeConfig.save(NativeConfig.LAYER_BASE)
+        }
+
+        StartupHandler.setSessionTime(this)
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        menuInflater.inflate(R.menu.menu_game_grid, menu)
+        if (WiiUtils.isSystemMenuInstalled()) {
+            val resId =
+                if (WiiUtils.isSystemMenuvWii()) R.string.grid_menu_load_vwii_system_menu_installed else R.string.grid_menu_load_wii_system_menu_installed
+            menu.findItem(R.id.menu_load_wii_system_menu).title =
+                getString(resId, WiiUtils.getSystemMenuVersion())
+        }
+        return true
+    }
+
+    /**
+     * MainView
+     */
+    override fun setVersionString(version: String) {
+        binding.toolbarMain.subtitle = version
+    }
+
+    override fun launchSettingsActivity(menuTag: MenuTag?) {
+        SettingsActivity.launch(this, menuTag)
+    }
+
+    override fun launchFileListActivity() {
+        if (DirectoryInitialization.preferOldFolderPicker(this)) {
+            FileBrowserHelper.openDirectoryPicker(this, FileBrowserHelper.GAME_EXTENSIONS)
+        } else {
+            val intent = Intent(Intent.ACTION_OPEN_DOCUMENT_TREE)
+            startActivityForResult(intent, MainPresenter.REQUEST_DIRECTORY)
+        }
+    }
+
+    override fun launchOpenFileActivity(requestCode: Int) {
+        val intent = Intent(Intent.ACTION_OPEN_DOCUMENT)
+        intent.addCategory(Intent.CATEGORY_OPENABLE)
+        intent.type = "*/*"
+        startActivityForResult(intent, requestCode)
+    }
+
+    /**
+     * @param requestCode An int describing whether the Activity that is returning did so successfully.
+     * @param resultCode  An int describing what Activity is giving us this callback.
+     * @param result      The information the returning Activity is providing us.
+     */
+    override fun onActivityResult(requestCode: Int, resultCode: Int, result: Intent?) {
+        super.onActivityResult(requestCode, resultCode, result)
+
+        // If the user picked a file, as opposed to just backing out.
+        if (resultCode == RESULT_OK) {
+            val uri = result!!.data
+            when (requestCode) {
+                MainPresenter.REQUEST_DIRECTORY -> {
+                    if (DirectoryInitialization.preferOldFolderPicker(this)) {
+                        presenter.onDirectorySelected(FileBrowserHelper.getSelectedPath(result))
+                    } else {
+                        presenter.onDirectorySelected(result)
+                    }
+                }
+
+                MainPresenter.REQUEST_GAME_FILE -> FileBrowserHelper.runAfterExtensionCheck(
+                    this, uri, FileBrowserHelper.GAME_LIKE_EXTENSIONS
+                ) { EmulationActivity.launch(this, result.data.toString(), false) }
+
+                MainPresenter.REQUEST_WAD_FILE -> FileBrowserHelper.runAfterExtensionCheck(
+                    this, uri, FileBrowserHelper.WAD_EXTENSION
+                ) { presenter.installWAD(result.data.toString()) }
+
+                MainPresenter.REQUEST_WII_SAVE_FILE -> FileBrowserHelper.runAfterExtensionCheck(
+                    this, uri, FileBrowserHelper.BIN_EXTENSION
+                ) { presenter.importWiiSave(result.data.toString()) }
+
+                MainPresenter.REQUEST_NAND_BIN_FILE -> FileBrowserHelper.runAfterExtensionCheck(
+                    this, uri, FileBrowserHelper.BIN_EXTENSION
+                ) { presenter.importNANDBin(result.data.toString()) }
+            }
+        } else {
+            MainPresenter.skipRescanningLibrary()
+        }
+    }
+
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<String>,
+        grantResults: IntArray
+    ) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+        if (requestCode == PermissionsHandler.REQUEST_CODE_WRITE_PERMISSION) {
+            if (grantResults[0] == PackageManager.PERMISSION_DENIED) {
+                PermissionsHandler.setWritePermissionDenied()
+            }
+
+            DirectoryInitialization.start(this)
+            AfterDirectoryInitializationRunner()
+                .runWithLifecycle(this) { setPlatformTabsAndStartGameFileCacheService() }
+        }
+    }
+
+    /**
+     * Called by the framework whenever any actionbar/toolbar icon is clicked.
+     *
+     * @param item The icon that was clicked on.
+     * @return True if the event was handled, false to bubble it up to the OS.
+     */
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        return presenter.handleOptionSelection(item.itemId, this)
+    }
+
+    /**
+     * Called when the user requests a refresh by swiping down.
+     */
+    override fun onRefresh() {
+        setRefreshing(true)
+        GameFileCacheManager.startRescan()
+    }
+
+    /**
+     * Shows or hides the loading indicator.
+     */
+    override fun setRefreshing(refreshing: Boolean) =
+        forEachPlatformGamesView { view: PlatformGamesView -> view.setRefreshing(refreshing) }
+
+    /**
+     * To be called when the game file cache is updated.
+     */
+    override fun showGames() =
+        forEachPlatformGamesView { obj: PlatformGamesView -> obj.showGames() }
+
+    override fun reloadGrid() {
+        forEachPlatformGamesView { obj: PlatformGamesView -> obj.refetchMetadata() }
+    }
+
+    override fun showGridOptions() =
+        GridOptionDialogFragment().show(supportFragmentManager, "gridOptions")
+
+    private fun forEachPlatformGamesView(action: Action1<PlatformGamesView>) {
+        for (platform in Platform.values()) {
+            val fragment = getPlatformGamesView(platform)
+            if (fragment != null) {
+                action.call(fragment)
+            }
+        }
+    }
+
+    private fun getPlatformGamesView(platform: Platform): PlatformGamesView? {
+        val fragmentTag =
+            "android:switcher:" + binding.pagerPlatforms.id + ":" + platform.toInt()
+        return supportFragmentManager.findFragmentByTag(fragmentTag) as PlatformGamesView?
+    }
+
+    // Don't call this before DirectoryInitialization completes.
+    private fun setPlatformTabsAndStartGameFileCacheService() {
+        val platformPagerAdapter = PlatformPagerAdapter(
+            supportFragmentManager, this
+        )
+        binding.pagerPlatforms.adapter = platformPagerAdapter
+        binding.pagerPlatforms.offscreenPageLimit = platformPagerAdapter.count
+        binding.tabsPlatforms.setupWithViewPager(binding.pagerPlatforms)
+        binding.tabsPlatforms.addOnTabSelectedListener(
+            object : TabLayout.ViewPagerOnTabSelectedListener(binding.pagerPlatforms) {
+                override fun onTabSelected(tab: TabLayout.Tab) {
+                    super.onTabSelected(tab)
+                    IntSetting.MAIN_LAST_PLATFORM_TAB.setInt(
+                        NativeConfig.LAYER_BASE,
+                        tab.position
+                    )
+                }
+            })
+
+        for (i in PlatformPagerAdapter.TAB_ICONS.indices) {
+            binding.tabsPlatforms.getTabAt(i)?.setIcon(PlatformPagerAdapter.TAB_ICONS[i])
+        }
+
+        binding.pagerPlatforms.currentItem = IntSetting.MAIN_LAST_PLATFORM_TAB.int
+
+        showGames()
+        GameFileCacheManager.startLoad()
+    }
+
+    override fun setTheme(themeId: Int) {
+        super.setTheme(themeId)
+        this.themeId = themeId
+    }
+
+    private fun setInsets() =
+        ViewCompat.setOnApplyWindowInsetsListener(binding.appbarMain) { _: View?, windowInsets: WindowInsetsCompat ->
+            val insets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars())
+
+            InsetsHelper.insetAppBar(insets, binding.appbarMain)
+
+            val mlpFab = binding.buttonAddDirectory.layoutParams as MarginLayoutParams
+            val fabPadding = resources.getDimensionPixelSize(R.dimen.spacing_large)
+            mlpFab.leftMargin = insets.left + fabPadding
+            mlpFab.bottomMargin = insets.bottom + fabPadding
+            mlpFab.rightMargin = insets.right + fabPadding
+            binding.buttonAddDirectory.layoutParams = mlpFab
+
+            binding.pagerPlatforms.setPadding(insets.left, 0, insets.right, 0)
+
+            InsetsHelper.applyNavbarWorkaround(insets.bottom, binding.workaroundView)
+            ThemeHelper.setNavigationBarColor(
+                this,
+                MaterialColors.getColor(binding.appbarMain, R.attr.colorSurface)
+            )
+
+            windowInsets
+        }
+}