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      1 /*
      2  * Copyright (C) 2013 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.systemui.settings;
     18 
     19 import android.app.Activity;
     20 import android.os.Bundle;
     21 import android.view.Gravity;
     22 import android.view.KeyEvent;
     23 import android.view.LayoutInflater;
     24 import android.view.View;
     25 import android.view.Window;
     26 import android.view.WindowManager;
     27 
     28 import com.android.internal.logging.MetricsLogger;
     29 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
     30 import com.android.systemui.R;
     31 
     32 /** A dialog that provides controls for adjusting the screen brightness. */
     33 public class BrightnessDialog extends Activity {
     34 
     35     private BrightnessController mBrightnessController;
     36 
     37     @Override
     38     protected void onCreate(Bundle savedInstanceState) {
     39         super.onCreate(savedInstanceState);
     40 
     41         final Window window = getWindow();
     42 
     43         window.setGravity(Gravity.TOP);
     44         window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
     45         window.requestFeature(Window.FEATURE_NO_TITLE);
     46 
     47         View v = LayoutInflater.from(this).inflate(
     48                 R.layout.quick_settings_brightness_dialog, null);
     49         setContentView(v);
     50 
     51         final ToggleSliderView slider = findViewById(R.id.brightness_slider);
     52         mBrightnessController = new BrightnessController(this, slider);
     53     }
     54 
     55     @Override
     56     protected void onStart() {
     57         super.onStart();
     58         mBrightnessController.registerCallbacks();
     59         MetricsLogger.visible(this, MetricsEvent.BRIGHTNESS_DIALOG);
     60     }
     61 
     62     @Override
     63     protected void onStop() {
     64         super.onStop();
     65         MetricsLogger.hidden(this, MetricsEvent.BRIGHTNESS_DIALOG);
     66         mBrightnessController.unregisterCallbacks();
     67     }
     68 
     69     @Override
     70     public boolean onKeyDown(int keyCode, KeyEvent event) {
     71         if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN
     72                 || keyCode == KeyEvent.KEYCODE_VOLUME_UP
     73                 || keyCode == KeyEvent.KEYCODE_VOLUME_MUTE) {
     74             finish();
     75         }
     76 
     77         return super.onKeyDown(keyCode, event);
     78     }
     79 }
     80