/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.systemui.tuner;
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import android.app.Activity;
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import android.app.Fragment;
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import android.app.FragmentTransaction;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.MenuItem;
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import android.view.Window;
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import android.view.WindowManager;
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import android.widget.Toolbar;
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import androidx.preference.Preference;
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import androidx.preference.PreferenceFragment;
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import androidx.preference.PreferenceScreen;
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import com.android.systemui.Dependency;
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import com.android.systemui.R;
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import com.android.systemui.fragments.FragmentService;
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public class TunerActivity extends Activity implements
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PreferenceFragment.OnPreferenceStartFragmentCallback,
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PreferenceFragment.OnPreferenceStartScreenCallback {
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private static final String TAG_TUNER = "tuner";
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
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requestWindowFeature(Window.FEATURE_NO_TITLE);
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setContentView(R.layout.tuner_activity);
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Toolbar toolbar = findViewById(R.id.action_bar);
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if (toolbar != null) {
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setActionBar(toolbar);
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}
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Dependency.initDependencies(this);
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if (getFragmentManager().findFragmentByTag(TAG_TUNER) == null) {
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final String action = getIntent().getAction();
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boolean showDemoMode = action != null && action.equals(
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"com.android.settings.action.DEMO_MODE");
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final PreferenceFragment fragment = showDemoMode ? new DemoModeFragment()
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: new TunerFragment();
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getFragmentManager().beginTransaction().replace(R.id.content_frame,
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fragment, TAG_TUNER).commit();
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}
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}
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@Override
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protected void onDestroy() {
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super.onDestroy();
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Dependency.destroy(FragmentService.class, s -> s.destroyAll());
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Dependency.clearDependencies();
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}
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@Override
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public boolean onMenuItemSelected(int featureId, MenuItem item) {
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if (item.getItemId() == android.R.id.home) {
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onBackPressed();
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return true;
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}
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return super.onMenuItemSelected(featureId, item);
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}
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@Override
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public void onBackPressed() {
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if (!getFragmentManager().popBackStackImmediate()) {
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super.onBackPressed();
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}
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}
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@Override
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public boolean onPreferenceStartFragment(PreferenceFragment caller, Preference pref) {
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try {
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Class<?> cls = Class.forName(pref.getFragment());
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Fragment fragment = (Fragment) cls.newInstance();
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final Bundle b = new Bundle(1);
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b.putString(PreferenceFragment.ARG_PREFERENCE_ROOT, pref.getKey());
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fragment.setArguments(b);
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FragmentTransaction transaction = getFragmentManager().beginTransaction();
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setTitle(pref.getTitle());
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transaction.replace(R.id.content_frame, fragment);
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transaction.addToBackStack("PreferenceFragment");
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transaction.commit();
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return true;
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} catch (ClassNotFoundException | InstantiationException | IllegalAccessException e) {
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Log.d("TunerActivity", "Problem launching fragment", e);
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return false;
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}
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}
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@Override
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public boolean onPreferenceStartScreen(PreferenceFragment caller, PreferenceScreen pref) {
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FragmentTransaction transaction = getFragmentManager().beginTransaction();
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SubSettingsFragment fragment = new SubSettingsFragment();
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final Bundle b = new Bundle(1);
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b.putString(PreferenceFragment.ARG_PREFERENCE_ROOT, pref.getKey());
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fragment.setArguments(b);
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fragment.setTargetFragment(caller, 0);
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transaction.replace(R.id.content_frame, fragment);
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transaction.addToBackStack("PreferenceFragment");
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transaction.commit();
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return true;
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}
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public static class SubSettingsFragment extends PreferenceFragment {
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private PreferenceScreen mParentScreen;
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@Override
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public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
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mParentScreen =
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(PreferenceScreen) ((PreferenceFragment) getTargetFragment())
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.getPreferenceScreen().findPreference(rootKey);
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PreferenceScreen screen =
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getPreferenceManager().createPreferenceScreen(
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getPreferenceManager().getContext());
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setPreferenceScreen(screen);
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// Copy all the preferences over to this screen so they go into the attached state.
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while (mParentScreen.getPreferenceCount() > 0) {
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Preference p = mParentScreen.getPreference(0);
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mParentScreen.removePreference(p);
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screen.addPreference(p);
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}
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}
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@Override
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public void onDestroy() {
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super.onDestroy();
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// Copy all the preferences back so we don't lose them.
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PreferenceScreen screen = getPreferenceScreen();
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while (screen.getPreferenceCount() > 0) {
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Preference p = screen.getPreference(0);
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screen.removePreference(p);
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mParentScreen.addPreference(p);
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}
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}
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}
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}
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