android开发环境设置和BLE驱动开发说明.pptxVIP

Android开发环境设置和Blooth low energy(BLE)驱动开发说明卢进铭Android开发环境设置一、要安装android 4.3(API18)，否则会出现各种错误，如导入包会出问题。建议：最好先安装android 4.3(API18)的Packages。然后再导入工程，这时开发环境会根据SDK的版本选择相应的tool。BLE驱动开发说明一、AndroidManifest.xml相关设置1、软件版本最小至少要为18，设置如下uses-sdk android:minSdkVersion=“18”2、设置uses-feature，说明此程序需要的相应硬件，设置如下 uses-featureandroid:name=“android.hardware.bluetooth_le ”android:required=true /3、设置uses-permission，说明此程序需要的相关的权限uses-permission android:name=android.permission.BLUETOOTH / uses-permission android:name=android.permission.BLUETOOTH_ADMIN /BLE代码说明一、判断系统是否支持BLE，代码如下：if(!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)){Toast.makeText(this,R.string.ble_not_supported,Toast.LENGTH_SHORT).show(); finish(); }二、得到系统蓝牙的适配器，代码如下：final BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);mBluetoothAdapter = bluetoothManager.getAdapter();// Checks if Bluetooth is supported on the device.if (mBluetoothAdapter == null) {Toast.makeText(this, R.string.error_bluetooth_not_supported, Toast.LENGTH_SHORT).show(); finish();return; }三、判断蓝牙是否打开，代码如下： if (!mBluetoothAdapter.isEnabled()) { if (!mBluetoothAdapter.isEnabled()) { Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT); } }响应打开蓝牙的操作，代码如下： protected void onActivityResult(int requestCode, int resultCode, Intent data) { // User chose not to enable Bluetooth. if (requestCode == REQUEST_ENABLE_BT resultCode == Activity.RESULT_CANCELED) { finish(); return; } super.onActivityResult(requestCode, resultCode, data); }四、调用蓝牙适配器的扫描设备函数，寻找设备。mBluetoothAdapter.startLeScan(mLeScanCallback); // Device scan callback. private BluetoothAdapter.LeScanCallback mLeScanCallback = new BluetoothAdapter.LeScanCallback() { @Override public void onLeScan(final BluetoothDevice device, int rssi, byte[]scanRecord) { runOnUiThread(new Runnable() { @Override public void run() { mLeDeviceListAdapter.addDevice(device)