Update extractor and refactored NewPipe

app/src/main/java/org/schabi/newpipe/settings/BasePreferenceFragment.java

@@ -0,0 +1,45 @@
+package org.schabi.newpipe.settings;
+
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.support.annotation.Nullable;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.preference.PreferenceFragmentCompat;
+import android.view.View;
+
+import org.schabi.newpipe.MainActivity;
+
+public abstract class BasePreferenceFragment extends PreferenceFragmentCompat {
+    protected final String TAG = getClass().getSimpleName() + "@" + Integer.toHexString(hashCode());
+    protected boolean DEBUG = MainActivity.DEBUG;
+
+    protected SharedPreferences defaultPreferences;
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        defaultPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
+    }
+
+    @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        setDivider(null);
+        updateTitle();
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        updateTitle();
+    }
+
+    private void updateTitle() {
+        if (getActivity() instanceof AppCompatActivity) {
+            ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
+            if (actionBar != null) actionBar.setTitle(getPreferenceScreen().getTitle());
+        }
+    }
+}