1 /*
2  * Copyright (C) 2019 The Android Open Source Project.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.car.themeplayground;
18 
19 import android.app.UiModeManager;
20 import android.content.Context;
21 import android.os.Bundle;
22 import android.widget.Button;
23 
24 /**
25  * Activity that shows different widgets on configuration changes.
26  */
27 public class WidgetsSamples extends AbstractSampleActivity {
28 
29     private UiModeManager mUiModeManager;
30 
31     @Override
onCreate(Bundle savedInstanceState)32     protected void onCreate(Bundle savedInstanceState) {
33         super.onCreate(savedInstanceState);
34         Utils.onActivityCreateSetTheme(this);
35         setContentView(R.layout.widget_samples);
36         Button triggerConfigChanges = findViewById(R.id.trigger_config_change);
37         mUiModeManager = (UiModeManager) this.getSystemService(Context.UI_MODE_SERVICE);
38         setupBackgroundColorControls(R.id.widgetLayout);
39         triggerConfigChanges.setOnClickListener(v -> {
40             if (mUiModeManager.getNightMode() == UiModeManager.MODE_NIGHT_YES) {
41                 mUiModeManager.setNightMode(UiModeManager.MODE_NIGHT_NO);
42             } else {
43                 mUiModeManager.setNightMode(UiModeManager.MODE_NIGHT_YES);
44             }
45         });
46     }
47 }
48