两个应用间传递数据（AIDL）实例

在AS中新建两个应用 （AIDL_1和AIDL_2）

在两个应用的app目录下新建一个文件夹（app->new->AIDL->AIDL File），AS会帮你自动建包和aidl接口
*注意两个应用的 com.permissionx.aidl_1 的这个包名要一样

interface IMyAidlInterface {
      
/*** Demonstrates some basic types that you can use as parameters* and return values in AIDL.*/
void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat,double aDouble, String aString);int getId();
String getName();
}

AIDL1 为服务端，所以新建一个Service

public class MyService extends Service {
      
public MyService() {
      
}@Override
public IBinder onBind(Intent intent) {
      return mBinder;
}private final IMyAidlInterface.Stub mBinder=new IMyAidlInterface.Stub() {
      @Overridepublic void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, String aString) throws RemoteException {
      }@Overridepublic int getId() throws RemoteException {
      return 3;}@Overridepublic String getName() throws RemoteException {
      return "AIDL_1_Test";}
};Ser
}

然后在manifests中注册Service

    <serviceandroid:name=".MyService"android:enabled="true"android:exported="true"><intent-filter><action android:name="AIDL.test"/></intent-filter></service>

AIDL_2为客户端，去bind AIDL_1的Service

public class MainActivity extends AppCompatActivity {
      在这里插入代码片
private TextView textView;@Override
protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);textView=findViewById(R.id.tv_test);Intent intent=new Intent();intent.setAction("AIDL.test"); //为AIDL_1 注册服务时指定的 actionintent.setPackage("com.permissionx.aidl_1"); bindService(intent,conn, Context.BIND_AUTO_CREATE);}private final ServiceConnection conn=new ServiceConnection() {
      private IMyAidlInterface mService;@Overridepublic void onServiceConnected(ComponentName name, IBinder service) {
      mService = IMyAidlInterface.Stub.asInterface(service);// 接收到来自AIDL_1的数据runOnUiThread(()->{
      try {
      Log.e(TAG,mService.getName());textView.setText(mService.getName());} catch (RemoteException e) {
      e.printStackTrace();}});}@Overridepublic void onServiceDisconnected(ComponentName name) {
      runOnUiThread(()->{
      try {
      Log.e("TAG",mService.getName()+"xxx");textView.setText("无数据");} catch (RemoteException e) {
      e.printStackTrace();}});mService=null;}
};
}

测试，先点开AID_1这个服务端，然后点开AIDL_2客户端，发现TextView中数据为AIDL_1中的数据，完成数据传递