diff --git a/app/src/main/java/org/ntlab/developrx/JavaMainActivity.java b/app/src/main/java/org/ntlab/developrx/JavaMainActivity.java
index 939aebb..b5445ec 100644
--- a/app/src/main/java/org/ntlab/developrx/JavaMainActivity.java
+++ b/app/src/main/java/org/ntlab/developrx/JavaMainActivity.java
@@ -2,6 +2,9 @@
 
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
+import android.widget.SeekBar;
+
+import java.util.concurrent.TimeUnit;
 
 /**
  * Created by matsumoto_k on 2017/11/11.
@@ -27,5 +30,27 @@
         findViewById(R.id.flatmap_1_btn).setOnClickListener(view -> rxProcess.flatmap1());
         findViewById(R.id.flatmap_2_btn).setOnClickListener(view -> rxProcess.flatmap2());
         findViewById(R.id.meeting_btn).setOnClickListener(view -> rxProcess.meetingTest());
+        SeekBar seekBar = findViewById(R.id.seek_bar);
+        seekBar.setMax(1000);
+        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                rxProcess.getPublishSubject().onNext(progress);
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+
+            }
+        });
+
+        rxProcess.getPublishSubject()
+                .throttleLast(500, TimeUnit.MILLISECONDS)
+                .subscribe(progress -> System.out.println(progress));
     }
 }