AndroidBLE蓝牙扫描系统源码解析学习笔记

以下是用于记录本人学习中的分析Android BLE蓝牙扫描系统源码分析笔记：

我们从BluetoothLeScanner中的startScan开始分析

1，public void startScan(final ScanCallback callback) { startScan(null, new ScanSettings.Builder().build(), callback); }

2，private int startScan(List<ScanFilter> filters, ScanSettings settings, final WorkSource workSource, final ScanCallback callback, final PendingIntent callbackIntent, List<List<ResultStorageDescriptor>> resultStorages) { BluetoothLeUtils.checkAdapterStateOn(mBluetoothAdapter); if (callback == null && callbackIntent == null) { throw new IllegalArgumentException("callback is null"); } if (settings == null) { throw new IllegalArgumentException("settings is null"); } synchronized (mLeScanClients) { //这里是为了确保扫描回调和扫描操作是一一对应关系 if (callback != null && mLeScanClients.containsKey(callback)) { return postCallbackErrorOrReturn(callback, ScanC