在文件中添加 android:persistent="true"

AndroidManifest.xml

...
    <application>
        android:persistent="true"
        android:name="com.example.myservice.application.MyApplication"
        ...
        <service>
            android:name="com.example.myservice.MyServie"
            ...
        </service>
    </application>
...

在onCreate中添加：

MyApplication.java

public class MyApplication extends Application{
    public void onCreate(){
        super.onCreate();
        //add-begin
        Intent intent = new Intent();
        intent.setComponent(new ComponentName(com.example.myservice, com.example.myservice.MyService));
        startServiceAsUser(intent, UserHandle.OWNER);
        //end-add
    }
}

MyService.java

public class MyService extends Service{
    private IBinder mBinder;
 
    public void onCreate(){
        super.onCreate();
        //add-begin
        if(mBinder == null){
            mBinder = new MyManageImpl();
            try{
                ServiceManager.addService(com.example.myservice.MyService, mBinder);
            }catch(Exception e){
                //nothing
            }
        }
        //end-add
    }
 
    public IBinder onBind(Intent intent){
        return mBinder;
    }
}