SystemUIService.java revision 0ad460b087abbd4b523a2e61ff27b0bf6fb5be92
1/* 2 * Copyright (C) 2010 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 17package com.android.systemui; 18 19import java.io.FileDescriptor; 20import java.io.PrintWriter; 21 22import android.app.Service; 23import android.content.BroadcastReceiver; 24import android.content.Context; 25import android.content.Intent; 26import android.content.pm.PackageManager; 27import android.content.res.Configuration; 28import android.os.Binder; 29import android.os.IBinder; 30import android.util.Slog; 31 32public class SystemUIService extends Service { 33 static final String TAG = "SystemUIService"; 34 35 /** 36 * The class names of the stuff to start. 37 */ 38 final Object[] SERVICES = new Object[] { 39 R.string.config_statusBarComponent, 40 com.android.systemui.power.PowerUI.class, 41 }; 42 43 /** 44 * Hold a reference on the stuff we start. 45 */ 46 SystemUI[] mServices; 47 48 private Class chooseClass(Object o) { 49 if (o instanceof Integer) { 50 final String cl = getString((Integer)o); 51 try { 52 return getClassLoader().loadClass(cl); 53 } catch (ClassNotFoundException ex) { 54 throw new RuntimeException(ex); 55 } 56 } else if (o instanceof Class) { 57 return (Class)o; 58 } else { 59 throw new RuntimeException("Unknown system ui service: " + o); 60 } 61 } 62 63 @Override 64 public void onCreate() { 65 final int N = SERVICES.length; 66 mServices = new SystemUI[N]; 67 for (int i=0; i<N; i++) { 68 Class cl = chooseClass(SERVICES[i]); 69 Slog.d(TAG, "loading: " + cl); 70 try { 71 mServices[i] = (SystemUI)cl.newInstance(); 72 } catch (IllegalAccessException ex) { 73 throw new RuntimeException(ex); 74 } catch (InstantiationException ex) { 75 throw new RuntimeException(ex); 76 } 77 mServices[i].mContext = this; 78 Slog.d(TAG, "running: " + mServices[i]); 79 mServices[i].start(); 80 } 81 } 82 83 @Override 84 public void onConfigurationChanged(Configuration newConfig) { 85 for (SystemUI ui: mServices) { 86 ui.onConfigurationChanged(newConfig); 87 } 88 } 89 90 /** 91 * Nobody binds to us. 92 */ 93 @Override 94 public IBinder onBind(Intent intent) { 95 return null; 96 } 97 98 @Override 99 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 100 if (checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 101 != PackageManager.PERMISSION_GRANTED) { 102 pw.println("Permission Denial: can't dump StatusBar from from pid=" 103 + Binder.getCallingPid() 104 + ", uid=" + Binder.getCallingUid()); 105 return; 106 } 107 108 if (args == null || args.length == 0) { 109 for (SystemUI ui: mServices) { 110 pw.println("dumping service: " + ui.getClass().getName()); 111 ui.dump(fd, pw, args); 112 } 113 } else { 114 String svc = args[0]; 115 for (SystemUI ui: mServices) { 116 String name = ui.getClass().getName(); 117 if (name.endsWith(svc)) { 118 ui.dump(fd, pw, args); 119 } 120 } 121 } 122 } 123} 124 125