Rewrote Theme

app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/BaseActivity.kt

@@ -10,7 +10,6 @@ import android.view.View
 import android.widget.TextView
 import eu.kanade.tachiyomi.App
 import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.injection.component.AppComponent
 import icepick.Icepick
 import org.greenrobot.eventbus.EventBus
 
@@ -31,6 +30,13 @@ open class BaseActivity : AppCompatActivity() {
         supportActionBar?.setDisplayHomeAsUpEnabled(true)
     }
 
+    fun setAppTheme() {
+        when (app.appTheme) {
+            2 -> setTheme(R.style.Theme_Tachiyomi_Dark)
+            else -> setTheme(R.style.Theme_Tachiyomi)
+        }
+    }
+
     fun setToolbarTitle(title: String) {
         supportActionBar?.title = title
     }
@@ -83,7 +89,7 @@ open class BaseActivity : AppCompatActivity() {
         snack.show()
     }
 
-    protected val applicationComponent: AppComponent
-        get() = App.get(this).component
+    protected val app: App
+        get() = App.get(this)
 
 }

app/src/main/java/eu/kanade/tachiyomi/ui/base/fragment/BaseRxFragment.java

@@ -1,6 +1,7 @@
 package eu.kanade.tachiyomi.ui.base.fragment;
 
 import android.os.Bundle;
+import android.support.v4.app.Fragment;
 
 import eu.kanade.tachiyomi.App;
 import eu.kanade.tachiyomi.ui.base.presenter.BasePresenter;
@@ -83,6 +84,12 @@ public abstract class BaseRxFragment<P extends Presenter> extends BaseFragment i
     @Override
     public void onPause() {
         super.onPause();
-        presenterDelegate.onPause(getActivity().isFinishing());
+        presenterDelegate.onPause(getActivity().isFinishing() || shouldDestroyPresenter(this));
     }
+
+    private boolean shouldDestroyPresenter(Fragment fragment) {
+        if (fragment == null) return false;
+        else return fragment.isRemoving() || shouldDestroyPresenter(fragment.getParentFragment());
+    }
+
 }