systemUI 添加藍牙耳機顯示

1.HeadsetStateMachine.java

    static {

        classInitNative();

        VENDOR_SPECIFIC_AT_COMMAND_COMPANY_ID = new HashMap<String, Integer>();

        VENDOR_SPECIFIC_AT_COMMAND_COMPANY_ID.put("+XEVENT", BluetoothAssignedNumbers.PLANTRONICS);

        VENDOR_SPECIFIC_AT_COMMAND_COMPANY_ID.put("+ANDROID", BluetoothAssignedNumbers.GOOGLE);

// 添加以下兩行

        VENDOR_SPECIFIC_AT_COMMAND_COMPANY_ID.put("+XAPL", BluetoothAssignedNumbers.APPLE);

        VENDOR_SPECIFIC_AT_COMMAND_COMPANY_ID.put("+IPHONEACCEV", BluetoothAssignedNumbers.APPLE);

    }

2.PhoneStatusBarPolicy.java

    public PhoneStatusBarPolicy(Context context, CastController cast, HotspotController hotspot,

            UserInfoController userInfoController, BluetoothController bluetooth) {

filter.addAction(BluetoothHeadset.ACTION_VENDOR_SPECIFIC_HEADSET_EVENT);

            filter.addCategory(BluetoothHeadset.VENDOR_SPECIFIC_HEADSET_EVENT_COMPANY_ID_CATEGORY + "." + BluetoothAssignedNumbers.APPLE);

                mContext.registerReceiver(mIntentReceiver, filter, null, mHandler);

    }

    private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {

        @Override

        public void onReceive(Context context, Intent intent) {

            // 添加如下接收

            else if (action.equals(BluetoothHeadset.ACTION_VENDOR_SPECIFIC_HEADSET_EVENT)) {

                updateBluetoothBattery(intent);

            }

        }

    };

    private void updateBluetoothBattery(Intent intent) {

        if (intent.hasExtra(BluetoothHeadset.EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD)) {

            String command = intent.getStringExtra(BluetoothHeadset.EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD);

            if ("+IPHONEACCEV".equals(command)) {

                Object[] args = (Object[]) intent.getSerializableExtra(BluetoothHeadset.EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_ARGS);

                if (args.length >= 3 && args[0] instanceof Integer && ((Integer)args[0])*2+1<=args.length) {

                    for (int i=0;i<((Integer)args[0]);i++) {

                        if (!(args[i*2+1] instanceof Integer) || !(args[i*2+2] instanceof Integer)) {

                            continue;

                        }

                        if (args[i*2+1].equals(1)) {

                            mBluetoothBatteryLevel = (((Integer)args[i*2+2])+1)/10.0f;

                            updateBluetooth();

                            break;

                        }

                    }

                }

            }

        }

    }

    private final void updateBluetooth() {

        int iconId = R.drawable.stat_sys_data_bluetooth;

        String contentDescription =

                mContext.getString(R.string.accessibility_quick_settings_bluetooth_on);

        boolean bluetoothEnabled = false;

        if (mBluetooth != null) {

            bluetoothEnabled = mBluetooth.isBluetoothEnabled();

            if (mBluetooth.isBluetoothConnected()) {

                if (mBluetoothBatteryLevel == null) {

                    iconId = R.drawable.stat_sys_data_bluetooth_connected;

                } else {

                    if (mBluetoothBatteryLevel <= 0.15f) {

                        iconId = R.drawable.stat_sys_data_bluetooth_connected_battery_0;

                    } else if (mBluetoothBatteryLevel <= 0.25f) {

                        iconId = R.drawable.stat_sys_data_bluetooth_connected_battery_1;

                    } else if (mBluetoothBatteryLevel <= 0.375f) {

                        iconId = R.drawable.stat_sys_data_bluetooth_connected_battery_2;

                    } else if (mBluetoothBatteryLevel <= 0.625f) {

                        iconId = R.drawable.stat_sys_data_bluetooth_connected_battery_3;

                    } else if (mBluetoothBatteryLevel <= 0.85f) {

                        iconId = R.drawable.stat_sys_data_bluetooth_connected_battery_4;

                    } else {

                        iconId = R.drawable.stat_sys_data_bluetooth_connected_battery_5;

                    }

                }

                contentDescription = mContext.getString(R.string.accessibility_bluetooth_connected);

            } else {

                mBluetoothBatteryLevel = null;

            }

        }

        mService.setIcon(SLOT_BLUETOOTH, iconId, 0, contentDescription);

        mService.setIconVisibility(SLOT_BLUETOOTH, bluetoothEnabled);

    }

附上HFP指令AT+IPHONEACCEV

描述：報告耳機的狀态變更

發起者：耳機

格式：AT+IPHONEACCEV=[Number of key/value pairs ],[key1 ],[val1 ],[key2 ],[val2 ],...

參數：

    Number of key/value pairs : 接下來參數的數量

    key: 被報告狀态變化的類型

        1 = 電量等級

        2 = 暫停狀态

    val: 更改的值

        Battery events:0-9之間數字的字元串 A string value between '0' and '9'.

        Dock state: 0 = undocked, 1 = docked.

Example: AT+IPHONEACCEV=1,1,3