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 17package com.android.systemui.statusbar.policy; 18 19import java.util.ArrayList; 20 21import android.bluetooth.BluetoothAdapter; 22import android.content.BroadcastReceiver; 23import android.content.Context; 24import android.content.Intent; 25import android.content.IntentFilter; 26import android.view.View; 27import android.widget.ImageView; 28 29import com.android.systemui.R; 30 31public class BluetoothController extends BroadcastReceiver { 32 private static final String TAG = "StatusBar.BluetoothController"; 33 34 private Context mContext; 35 private ArrayList<ImageView> mIconViews = new ArrayList<ImageView>(); 36 37 private int mIconId = R.drawable.stat_sys_data_bluetooth; 38 private int mContentDescriptionId = 0; 39 private boolean mEnabled = false; 40 41 public BluetoothController(Context context) { 42 mContext = context; 43 44 IntentFilter filter = new IntentFilter(); 45 filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED); 46 filter.addAction(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED); 47 context.registerReceiver(this, filter); 48 49 final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); 50 if (adapter != null) { 51 handleAdapterStateChange(adapter.getState()); 52 handleConnectionStateChange(adapter.getConnectionState()); 53 } 54 refreshViews(); 55 } 56 57 public void addIconView(ImageView v) { 58 mIconViews.add(v); 59 } 60 61 @Override 62 public void onReceive(Context context, Intent intent) { 63 final String action = intent.getAction(); 64 65 if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) { 66 handleAdapterStateChange( 67 intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR)); 68 } else if (action.equals(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED)) { 69 handleConnectionStateChange( 70 intent.getIntExtra(BluetoothAdapter.EXTRA_CONNECTION_STATE, 71 BluetoothAdapter.STATE_DISCONNECTED)); 72 } 73 refreshViews(); 74 } 75 76 public void handleAdapterStateChange(int adapterState) { 77 mEnabled = (adapterState == BluetoothAdapter.STATE_ON); 78 } 79 80 public void handleConnectionStateChange(int connectionState) { 81 final boolean connected = (connectionState == BluetoothAdapter.STATE_CONNECTED); 82 if (connected) { 83 mIconId = R.drawable.stat_sys_data_bluetooth_connected; 84 mContentDescriptionId = R.string.accessibility_bluetooth_connected; 85 } else { 86 mIconId = R.drawable.stat_sys_data_bluetooth; 87 mContentDescriptionId = R.string.accessibility_bluetooth_disconnected; 88 } 89 } 90 91 public void refreshViews() { 92 int N = mIconViews.size(); 93 for (int i=0; i<N; i++) { 94 ImageView v = mIconViews.get(i); 95 v.setImageResource(mIconId); 96 v.setVisibility(mEnabled ? View.VISIBLE : View.GONE); 97 v.setContentDescription((mContentDescriptionId == 0) 98 ? null 99 : mContext.getString(mContentDescriptionId)); 100 } 101 } 102} 103