Hi Arun, I guess your problem is that you are printing out the stream element and not the content of the stream. As the API documentation states, asString converts an object stream to a stream of strings. I guess you should use this instead:
filterReadings.map(value -> resultsTextView.setText(value.toString()); Hope that helps. Chris. Am 05.04.19, 07:14 schrieb "Arun KN" <reachmeataru...@gmail.com>: Hi Sir, I am hobby developer and have experience in IoT and embedded product, i got to know Edgent SDK while one of the search, i was very much impressed with the feature...meanwhile i tried to develop a small app on Android App to get sensor data from Android phone...am able to clear all errors related to dependency on Android studio and generate APK , install and run app on Mobile phone ...here in code(pasted below) am trying to print sensor data in TextView of App, once i run app am getting output on TextView is "ConnectStream alias=null tags=[] " ...i am expecting sensor data of Acceleration,but am getting above mentioned output, Please help me in resolving this issue ...why am getting "ConnectStream alias=null tags=[] " .....provide me solution to get proper data from sensor.so that i can go further in my exploring EDGENT. my Android App code is below : package com.example.temperaturesensor; import android.support.v7.app.AppCompatActivity; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.widget.TextView; import org.apache.edgent.providers.direct.DirectProvider; import org.apache.edgent.topology.TStream; import org.apache.edgent.topology.Topology; import java.util.concurrent.TimeUnit; public class MainActivity extends AppCompatActivity { /* private val findViewById; */ private static final String TAG = "EdgeNT Sample App"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TextView resultsTextView = (TextView) findViewById(R.id.resultsTextView); TempSensor sensor = new TempSensor(getApplicationContext()); DirectProvider provider = new DirectProvider(); Topology t = provider.newTopology("EdgentSampleApp"); Log.d("Sensor Data",":Pritnt Sensor Data "+sensor.toString()); TStream<Double> tempReadings = t.poll(sensor,1, TimeUnit.SECONDS); TStream<Double> filterReadings = tempReadings.filter(reading-> reading < 10 || reading > 20); Log.i("Sensor Sample", "Printing temperature values: "+filterReadings.print()); // resultsTextView.setText(filterReadings.asString().toString()); resultsTextView.setText(filterReadings.asString().toString()); filterReadings.print(); provider.submit(t); } } Awaiting for your response. Thanks & Regards, Arun Kumar N