1 /* 2 * Copyright (C) 2008 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 android.os; 18 19 import android.os.IPowerManager; 20 21 import android.app.Activity; 22 import android.os.Bundle; 23 import android.os.RemoteException; 24 import android.os.ServiceManager; 25 import android.provider.Settings; 26 import android.view.View; 27 import android.view.View.OnClickListener; 28 import android.widget.Button; 29 30 import com.android.frameworks.coretests.R; 31 32 /** 33 * Tries to set the brightness to 0. Should be silently thwarted by the framework. 34 */ 35 public class BrightnessLimit extends Activity implements OnClickListener { 36 37 @Override onCreate(Bundle savedInstanceState)38 protected void onCreate(Bundle savedInstanceState) { 39 super.onCreate(savedInstanceState); 40 41 setContentView(R.layout.brightness_limit); 42 43 Button b = (Button) findViewById(R.id.go); 44 b.setOnClickListener(this); 45 } 46 onClick(View v)47 public void onClick(View v) { 48 IPowerManager power = IPowerManager.Stub.asInterface( 49 ServiceManager.getService("power")); 50 if (power != null) { 51 try { 52 power.setTemporaryScreenBrightnessSettingOverride(0); 53 } catch (RemoteException darn) { 54 55 } 56 } 57 Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, 0); 58 } 59 } 60 61