package de.pixart.messenger.ui; import android.content.SharedPreferences; import android.preference.PreferenceManager; import android.support.annotation.BoolRes; import android.support.v7.app.ActionBar; import android.support.v7.app.AppCompatActivity; import android.view.MenuItem; import android.view.WindowManager; import de.pixart.messenger.R; public abstract class ActionBarActivity extends AppCompatActivity { public static void configureActionBar(ActionBar actionBar) { configureActionBar(actionBar, true); } public static void configureActionBar(ActionBar actionBar, boolean upNavigation) { if (actionBar != null) { actionBar.setHomeButtonEnabled(upNavigation); actionBar.setDisplayHomeAsUpEnabled(upNavigation); } } @Override public boolean onOptionsItemSelected(final MenuItem item) { switch (item.getItemId()) { case android.R.id.home: finish(); break; } return super.onOptionsItemSelected(item); } void initializeScreenshotSecurity() { if (isScreenSecurityEnabled()) { getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE); } else { getWindow().clearFlags(WindowManager.LayoutParams.FLAG_SECURE); } } public boolean isScreenSecurityEnabled() { return getBooleanPreference("screen_security", R.bool.screen_security); } protected SharedPreferences getPreferences() { return PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); } protected boolean getBooleanPreference(String name, @BoolRes int res) { return getPreferences().getBoolean(name, getResources().getBoolean(res)); } }