目录：
大疆无人机DJI Mobile SDK（Android）入门（一）
大道无疆，创新无限！
将您的想法变为现实！
未来，无所不能！
小Z码农有幸能接触到这么高逼格的玩具。就将这段爱恨往事作为笔记记录下来......哈哈哈哈！下面开始开车了。。请系好安全带！
准备工作：
1、支持Mobile SDK 的DJI 无人机产品一架（满满的土豪感）；
2、DJI Assistant 2 测试PC端模拟器下载安装；
3、android5.0手机一个（Mobile SDK 只支持5.0以上，测试手机型号HUAWEI M5 （版本android 9）和Honor 10 （版本android 10））；
可根据DJI网站查看对应SDK 支持产品型号：https://developer.dji.com/products/#!/mobile
DJI Assistant 2下载地址：https://www.dji.com/cn/downloads?site=brandsite&from=footer
DJI Mobile SDK 文档查看地址：https://developer.dji.com/mobile-sdk/
和其它第三方SDK库一样，
1、注册DJI账号
2、创建Mobile SDK 应用
3、AndroidManifest.xml 填写DJI的应用App key
4、app的build.gradle 中依赖DJI库
创建DJI应用得到App key
依赖库如下（最新relase）：
implementation('com.dji:dji-sdk:4.11.1', {exclude module: 'library-anti-distortion'exclude module: 'fly-safe-database'
})
compileOnly 'com.dji:dji-sdk-provided:4.11.1一、注册SDK使用
1）registerApp必须先成功使用SDK注册，然后才能将DJI产品与SDK一起使用。
文档中registerApp属于DJISDKManager下的功能，所以调用如下注册方法
2）权限申请：
<!-- SDK permission requirement -->
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-featureandroid:name="android.hardware.usb.host"android:required="false"/>
<uses-featureandroid:name="android.hardware.usb.accessory"android:required="true"/>DJISampleApplication
public class DJISampleApplication extends Application {public static final String TAG = DJISampleApplication.class.getName();private static BaseProduct product;private static BluetoothProductConnector bluetoothConnector = null;private static Bus bus = new Bus(ThreadEnforcer.ANY);private static Application app = null;/*** Gets instance of the specific product connected after the* API KEY is successfully validated. Please make sure the* API_KEY has been added in the Manifest*/public static synchronized BaseProduct getProductInstance() {product = DJISDKManager.getInstance().getProduct();return product;}public static synchronized BluetoothProductConnector getBluetoothProductConnector() {bluetoothConnector = DJISDKManager.getInstance().getBluetoothProductConnector();return bluetoothConnector;}public static boolean isAircraftConnected() {return getProductInstance() != null && getProductInstance() instanceof Aircraft;}public static boolean isHandHeldConnected() {return getProductInstance() != null && getProductInstance() instanceof HandHeld;}public static synchronized Aircraft getAircraftInstance() {if (!isAircraftConnected()) {return null;}return (Aircraft) getProductInstance();}public static synchronized HandHeld getHandHeldInstance() {if (!isHandHeldConnected()) {return null;}return (HandHeld) getProductInstance();}public static Application getInstance() {return DJISampleApplication.app;}public static Bus getEventBus() {return bus;}@Overrideprotected void attachBaseContext(Context paramContext) {super.attachBaseContext(paramContext);MultiDex.install(this);com.secneo.sdk.Helper.install(this);app = this;}
}MainActivity
private static final String[] REQUIRED_PERMISSION_LIST = new String[] {Manifest.permission.VIBRATE, // Gimbal rotationManifest.permission.INTERNET, // API requestsManifest.permission.ACCESS_WIFI_STATE, // WIFI connected productsManifest.permission.ACCESS_COARSE_LOCATION, // MapsManifest.permission.ACCESS_NETWORK_STATE, // WIFI connected productsManifest.permission.ACCESS_FINE_LOCATION, // MapsManifest.permission.CHANGE_WIFI_STATE, // Changing between WIFI and USB connectionManifest.permission.WRITE_EXTERNAL_STORAGE, // Log filesManifest.permission.BLUETOOTH, // Bluetooth connected productsManifest.permission.BLUETOOTH_ADMIN, // Bluetooth connected productsManifest.permission.READ_EXTERNAL_STORAGE, // Log filesManifest.permission.READ_PHONE_STATE, // Device UUID accessed upon registrationManifest.permission.RECORD_AUDIO // Speaker accessory
};
private static final int REQUEST_PERMISSION_CODE = 12345;//region Life-cycle
@Override
protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);checkAndRequestPermissions();DJISampleApplication.getEventBus().register(this);setContentView(R.layout.activity_main);
}
/*** Result of runtime permission request*/
@Override
public void onRequestPermissionsResult(int requestCode,@NonNull String[] permissions,@NonNull int[] grantResults) {super.onRequestPermissionsResult(requestCode, permissions, grantResults);// Check for granted permission and remove from missing listif (requestCode == REQUEST_PERMISSION_CODE) {for (int i = grantResults.length - 1; i >= 0; i--) {if (grantResults[i] == PackageManager.PERMISSION_GRANTED) {missingPermission.remove(permissions[i]);}}}// If there is enough permission, we will start the registrationif (missingPermission.isEmpty()) {startSDKRegistration();} else {Toast.makeText(getApplicationContext(), "Missing permissions!!!", Toast.LENGTH_LONG).show();}
}/*** Checks if there is any missing permissions, and* requests runtime permission if needed.*/
private void checkAndRequestPermissions() {// Check for permissionsfor (String eachPermission : REQUIRED_PERMISSION_LIST) {if (ContextCompat.checkSelfPermission(this, eachPermission) != PackageManager.PERMISSION_GRANTED) {missingPermission.add(eachPermission);}}// Request for missing permissionsif (missingPermission.isEmpty()) {startSDKRegistration();} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {ActivityCompat.requestPermissions(this,missingPermission.toArray(new String[missingPermission.size()]),REQUEST_PERMISSION_CODE);}
}private void startSDKRegistration() {if (isRegistrationInProgress.compareAndSet(false, true)) {AsyncTask.execute(new Runnable() {@Overridepublic void run() {ToastUtils.setResultToToast(MainActivity.this.getString(R.string.sdk_registration_doing_message));DJISDKManager.getInstance().registerApp(MainActivity.this.getApplicationContext(), new DJISDKManager.SDKManagerCallback() {@Overridepublic void onRegister(DJIError djiError) {if (djiError == DJISDKError.REGISTRATION_SUCCESS) {DJILog.e("App registration", DJISDKError.REGISTRATION_SUCCESS.getDescription());DJISDKManager.getInstance().startConnectionToProduct();ToastUtils.setResultToToast(MainActivity.this.getString(R.string.sdk_registration_success_message));showDBVersion();} else {ToastUtils.setResultToToast(MainActivity.this.getString(R.string.sdk_registration_message) + djiError.getDescription());}Log.v(TAG, djiError.getDescription());}@Overridepublic void onProductDisconnect() {Log.d(TAG, "onProductDisconnect");//断开}@Overridepublic void onProductConnect(BaseProduct baseProduct) {Log.d(TAG, String.format("onProductConnect newProduct:%s", baseProduct));//连上}@Overridepublic void onComponentChange(BaseProduct.ComponentKey componentKey,BaseComponent oldComponent,BaseComponent newComponent) {if (newComponent != null) {newComponent.setComponentListener(mDJIComponentListener);}Log.d(TAG,String.format("onComponentChange key:%s, oldComponent:%s, newComponent:%s",componentKey,oldComponent,newComponent));notifyStatusChange();}@Overridepublic void onInitProcess(DJISDKInitEvent djisdkInitEvent, int i) {}@Overridepublic void onDatabaseDownloadProgress(long current, long total) {//首次注册使用联网下载基础数据}});}});}
}@Override
protected void onDestroy() {DJISampleApplication.getEventBus().unregister(this);super.onDestroy();
}由于涉及某些制度隐私问题，所以就只晒下应用的一些截图结果，欢迎各位留言交流学习！！
