Android DJI Mobile-SDK 开发
<blockquote><p>由于大疆的文档是英文的，看着不太舒服，虽然靠翻译插件进行翻译可也能看，但是来回的切换看比较麻烦，就搞一个中文的教程，基于SDK Version: 3.5.1（书到用时方恨少，后悔当年没好好学习英语）</p>
</blockquote>
<p></p>
<h1 id="开发准备">开发准备</h1>
<ul>
<li><strong>先去开发者中心注册账号</strong></li>
<li><strong>登录个人中心</strong></li>
</ul>
<p><img src="https://cdn.nlark.com/yuque/0/2019/png/259158/1553065166533-5dc46782-00b0-4d23-ba56-fe1e90273b66.png#align=left&display=inline&height=332&originHeight=580&originWidth=1302&size=0&status=done&width=746" alt="" loading="lazy"></p>
<ul>
<li><strong>创建应用</strong></li>
</ul>
<p><img src="https://cdn.nlark.com/yuque/0/2019/png/259158/1553065166687-62aa2522-f9bc-445f-a958-af9181208760.png#align=left&display=inline&height=559&originHeight=559&originWidth=601&size=0&status=done&width=601" alt="" loading="lazy"></p>
<hr>
<p></p>
<h2 id="开发">开发</h2>
<blockquote>
<p>可以参考大疆的Android文档 ——[ DJI ]</p>
</blockquote>
<ul>
<li><strong>下载Demo，将Demo 中的lib项目导入自己的项目工程中</strong></li>
<li>配置AndroidManifest.xml</li>
</ul>
<p><strong>添加SDK所需要的权限</strong></p>
<pre><code class="language-xml"><!-- SDK 需要的权限 -->
<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.WAKE_LOCK" />
<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.MOUNT_UNMOUNT_FILESYSTEMS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-feature android:name="android.hardware.usb.host" android:required="false" />
<uses-feature android:name="android.hardware.usb.accessory" android:required="true" />
</code></pre>
<p><strong>配置key以及服务</strong></p>
<pre><code class="language-xml"><application
android:name=".MyApplication"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<meta-data
android:name="com.dji.sdk.API_KEY"
android:value="自己应用申请的key" />
<!-- 以下是官方dmeo默认的配置 -->
<service android:name="dji.sdk.sdkmanager.DJIGlobalService" />
<service android:name="dji.internal.geofeature.flyforbid.FlyforbidUpdateService" />
<!-- Required for receiving GEO system pushing. -->
<service android:name="dji.sdk.sdkmanager.GeoSyncFileService"/>
<activity
android:name="dji.sdk.sdkmanager.DJIAoaControllerActivity"
android:theme="@android:style/Theme.Translucent" >
<intent-filter>
<action android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED" />
</intent-filter>
<meta-data
android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED"
android:resource="@xml/accessory_filter" />
</activity>
<!-- 以上是官方dmeo默认的配置 -->
<activity android:name=".MainActivity"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</code></pre>
<p></p>
<h2 id="myapplication">MyApplication</h2>
<blockquote>
<p>用来初始化DJI SDK的一个类，写好后，别忘了配置到AndroidManifest.xml中</p>
</blockquote>
<pre><code class="language-java">import android.app.Application;
import android.content.Intent;
import android.os.Handler;
import android.os.Looper;
import android.support.multidex.MultiDex;
import android.util.Log;
import android.widget.Toast;
import dji.common.error.DJIError;
import dji.common.error.DJISDKError;
import dji.sdk.base.DJIBaseComponent;
import dji.sdk.base.DJIBaseProduct;
import dji.sdk.products.DJIAircraft;
import dji.sdk.sdkmanager.DJISDKManager;
/**
* Created by kitty
* Application类用来初始化SDK
*/
public class MyApplication extends Application {
private static DJIBaseProduct mProduct;
private Handler mHandler;
public static final String FLAG_CONNECTION_CHANGE ="com_example_dji_sdkdemo3_connection_change";
@Override
public void onCreate() {
super.onCreate();
//初始化SDK
DJISDKManager.getInstance().initSDKManager(this, mDJISDKManagerCallback);
}
/**
* 注册监听
*/
private DJISDKManager.DJISDKManagerCallback mDJISDKManagerCallback = new DJISDKManager.DJISDKManagerCallback() {
//判断是否注册成功回调
@Override
public void onGetRegisteredResult(DJIError error) {
if (error == DJISDKError.REGISTRATION_SUCCESS) {
Handler handler = new Handler(Looper.getMainLooper());
handler.post(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), "注册成功", Toast.LENGTH_LONG).show();
}
});
DJISDKManager.getInstance().startConnectionToProduct();
} else {
Handler handler = new Handler(Looper.getMainLooper());
handler.post(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), "注册失败，或者网络问题", Toast.LENGTH_LONG).show();
}
});
}
Log.e("TAG", error.toString());
}
//监听状态
@Override
public void onProductChanged(DJIBaseProduct oldProduct, DJIBaseProduct newProduct) {
mProduct = newProduct;
if (mProduct != null) {
mProduct.setDJIBaseProductListener(mDJIBaseProductListener);
}
notifyStatusChange();
}
};
private DJIBaseProduct.DJIBaseProductListener mDJIBaseProductListener = new DJIBaseProduct.DJIBaseProductListener() {
@Override
public void onComponentChange(DJIBaseProduct.DJIComponentKey key, DJIBaseComponent oldComponent, DJIBaseComponent newComponent) {
if (newComponent != null) {
newComponent.setDJIComponentListener(mDJIComponentListener);
}
notifyStatusChange();
}
@Override
public void onProductConnectivityChanged(boolean isConnected) {
notifyStatusChange();
}
};
private DJIBaseComponent.DJIComponentListener mDJIComponentListener = new DJIBaseComponent.DJIComponentListener() {
@Override
public void onComponentConnectivityChanged(boolean isConnected) {
Log.d("Alex", "onComponentConnectivityChanged: " + isConnected);
notifyStatusChange();
}
};
private void notifyStatusChange() {
mHandler.removeCallbacks(updateRunnable);
mHandler.postDelayed(updateRunnable, 500);
}
private Runnable updateRunnable = new Runnable() {
@Override
public void run() {
Intent intent = new Intent(FLAG_CONNECTION_CHANGE);
sendBroadcast(intent);
}
};
/**
* 获得指定的实例
*/
public static synchronized DJIBaseProduct getProductInstance() {
if (null == mProduct) {
mProduct = DJISDKManager.getInstance().getDJIProduct();
}
return mProduct;
}
}
</code></pre>
<hr>
<p></p>
<h3 id="mainactivity">MainActivity</h3>
<ul>
<li><strong>界面</strong></li>
</ul>
<pre><code class="language-xml"><?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="@+id/text_connection_status"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Status: No Product Connected"
android:textColor="@android:color/black"
android:textSize="20dp"
android:textStyle="bold"
android:layout_alignBottom="@+id/text_product_info"
android:layout_centerHorizontal="true"
android:layout_marginBottom="89dp" />
<TextView
android:id="@+id/text_product_info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="150dp"
android:text="product_information"
android:textColor="@android:color/black"
android:textSize="20dp"
android:gravity="center"
android:textStyle="bold"
/>
<Button
android:id="@+id/btn_open"
android:layout_width="150dp"
android:layout_height="55dp"
android:layout_centerHorizontal="true"
android:layout_marginTop="250dp"
android:background="@drawable/round_btn"
android:text="Open"
android:textColor="@android:color/white"
android:textSize="20dp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Demo"
android:id="@+id/textView"
android:layout_marginTop="30dp"
android:textStyle="bold"
android:textSize="20dp"
android:textColor="@color/colorAccent"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
</code></pre>
<ul>
<li><strong>Code</strong></li>
</ul>
<pre><code class="language-java">import android.Manifest;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import dji.sdk.base.DJIBaseProduct;
import dji.sdk.products.DJIAircraft;
/**
* Created by kitty on 2017/3/1.
* 连接页面
*/
public class MainActivityextends Activity implements View.OnClickListener, DJIBaseProduct.DJIVersionCallback {
private static final String TAG = MainActivity.class.getName();
private TextView mTextConnectionStatus;
private TextView mTextProduct;
private Button mBtnOpen;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//判断版本，进行动态获取权限
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.VIBRATE,
Manifest.permission.INTERNET, Manifest.permission.ACCESS_WIFI_STATE,
Manifest.permission.WAKE_LOCK, Manifest.permission.ACCESS_COARSE_LOCATION,
Manifest.permission.ACCESS_NETWORK_STATE, Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.CHANGE_WIFI_STATE, Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS,
Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.SYSTEM_ALERT_WINDOW,
Manifest.permission.READ_PHONE_STATE,
}
, 1);
}
setContentView(R.layout.activity_main);
initUI();
//注册广播，连接成功 更新UI用
IntentFilter filter = new IntentFilter();
filter.addAction(MainActivity.FLAG_CONNECTION_CHANGE);
registerReceiver(mReceiver, filter);
}
private void initUI() {
mTextConnectionStatus = (TextView) findViewById(R.id.text_connection_status);
mTextProduct = (TextView) findViewById(R.id.text_product_info);
//open按钮
mBtnOpen = (Button) findViewById(R.id.btn_open);
mBtnOpen.setOnClickListener(this);
mBtnOpen.setEnabled(false);
}
//连接成功广播更新UI
protected BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
refreshSDKRelativeUI();
}
};
//更新UI
private void refreshSDKRelativeUI() {
DJIBaseProduct mProduct = MainActivity.getProductInstance();
if (null != mProduct && mProduct.isConnected()) {
mBtnOpen.setEnabled(true);
String str = mProduct instanceof DJIAircraft ? "DJIAircraft" : "DJIHandHeld";
mTextConnectionStatus.setText("Status: " + str + " connected");
mProduct.setDJIVersionCallback(this);
if (null != mProduct.getModel()) {
mTextProduct.setText("" + mProduct.getModel().getDisplayName());
} else {
mTextProduct.setText(R.string.product_information);
}
} else {
mBtnOpen.setEnabled(false);
mTextProduct.setText(R.string.product_information);
mTextConnectionStatus.setText(R.string.connection_loose);
}
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_open:
Intent intent = new Intent(this, OpenActivity.class);
startActivity(intent);
break;
default:
break;
}
}
@Override
public void onProductVersionChange(String s, String s1) {
Log.e("ceshi", "ConnectionActivity.java-->onProductVersionChange()");
}
@Override
public void onResume() {
Log.e(TAG, "onResume");
super.onResume();
}
@Override
public void onPause() {
Log.e(TAG, "onPause");
super.onPause();
}
@Override
public void onStop() {
Log.e(TAG, "onStop");
super.onStop();
}
public void onReturn(View view) {
Log.e(TAG, "onReturn");
this.finish();
}
@Override
protected void onDestroy() {
Log.e(TAG, "onDestroy");
unregisterReceiver(mReceiver);
super.onDestroy();
}
}
</code></pre>
<p></p>
<h2 id="openactivity">OpenActivity</h2>
<ul>
<li><strong>界面</strong></li>
</ul>
<pre><code class="language-xml"><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextureView
android:id="@+id/video_previewer_surface"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_centerHorizontal="true" />
</RelativeLayout>
</code></pre>
<ul>
<li><strong>Code</strong></li>
</ul>
<pre><code class="language-java">/**
* 连接成功显示页面
*/
public class OpenActivity extends AppCompatActivity implementsTextureView.SurfaceTextureListener {
protected TextureView mVideoSurface = null;
private static final String TAG = OpenActivity.class.getName();
protected DJICamera.CameraReceivedVideoDataCallback mReceivedVideoDataCallBack = null;
DJICodecManager mCodecManager;
private DJICamera camera;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout. open);
//初始化界面
initUI();
//显示回调
mReceivedVideoDataCallBack = new DJICamera.CameraReceivedVideoDataCallback() {
@Override
public void onResult(byte[] videoBuffer, int size) {
if (mCodecManager != null) {
// Send the raw H264 video data to codec manager for decoding
mCodecManager.sendDataToDecoder(videoBuffer, size);
} else {
Log.e(TAG, "mCodecManager is null");
}
}
};
}
protected void onProductChange() {
initPreviewer();
}
@Override
public void onResume() {
super.onResume();
initPreviewer();
onProductChange();
if (mVideoSurface == null) {
Log.e("ceshi", "mVideoSurface 显示界面为空");
}
}
private void initPreviewer() {
DJIBaseProduct product = MyApplication.getProductInstance();
if (product == null || !product.isConnected()) {
// showToast(getString(R.string.disconnected));
Toast.makeText(getApplicationContext(), "无连接", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getApplicationContext(), "以连接", Toast.LENGTH_LONG).show();
if (null != mVideoSurface) {
mVideoSurface.setSurfaceTextureListener(this);
}
if (!product.getModel().equals(product.getModel().UnknownAircraft)) {
DJICamera camera = product.getCamera();
if (camera != null) {
// Set the callback
camera.setDJICameraReceivedVideoDataCallback(mReceivedVideoDataCallBack);
}
}
}
}
private void uninitPreviewer() {
DJICamera camera = MyApplication.getProductInstance().getCamera();
if (camera != null) {
// Reset the callback
MyApplication.getProductInstance().getCamera().setDJICameraReceivedVideoDataCallback(null);
}
}
@Override
public void onPause() {
super.onPause();
}
@Override
public void onStop() {
uninitPreviewer();
super.onStop();
}
@Override
protected void onDestroy() {
super.onDestroy();
uninitPreviewer();
}
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
Log.e(TAG, "onSurfaceTextureAvailable");
if (mCodecManager == null) {
mCodecManager = new DJICodecManager(this, surface, width, height);
}
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
Log.e(TAG, "onSurfaceTextureSizeChanged");
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
Log.e(TAG, "onSurfaceTextureDestroyed");
if (mCodecManager != null) {
mCodecManager.cleanSurface();
mCodecManager = null;
}
return false;
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surface) {
}
private void initUI() {
// 准备界面
mVideoSurface = (TextureView) findViewById(R.id.video_previewer_surface);
if (null != mVideoSurface) {
mVideoSurface.setSurfaceTextureListener(this);
}
}
}
</code></pre>
<p></p>
<h2 id="测试步骤">测试步骤</h2>
<ul>
<li><strong>手机连接遥控器</strong></li>
<li><strong>选择dmeo打开</strong></li>
<li><strong>连接飞机成功，点击open按钮，成功的话会显示画面</strong></li>
</ul><br><br>
来源：https://www.cnblogs.com/wuyanzu/p/11874294.html
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