activity_example_rtmp.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:id="@+id/activity_example_rtmp"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".defaultexample.ExampleRtmpActivity"
    >
  <SurfaceView
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:id="@+id/surfaceView"
      />

  <EditText
      android:hint="@string/hint_rtmp"
      android:textColor="@color/appColor"
      android:textColorHint="@color/appColor"
      android:inputType="textUri"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:gravity="center"
      android:layout_margin="20dp"
      android:id="@+id/et_rtmp_url"
      />

  <Button
      android:text="@string/start_button"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentBottom="true"
      android:layout_centerHorizontal="true"
      android:layout_margin="20dp"
      android:id="@+id/b_start_stop"
      />
</RelativeLayout>

AndroidManifest.xml

...

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.CAMERA" />

...

build.gradle

allprojects {
  repositories {
    maven { url 'https://jitpack.io' }
  }
}
dependencies {
  compile 'com.github.fitraditya:rtmp-rtsp-stream-client-java:4a0fbf39da'
}

MainActivity.java

package com.example.rtmpapp;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.SurfaceView;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.pedro.builder.rtmp.RtmpBuilder;
import com.pedro.rtmpstreamer.R;
import net.ossrs.rtmp.ConnectCheckerRtmp;

public class ExampleRtmpActivity extends AppCompatActivity implements ConnectCheckerRtmp, View.OnClickListener {

  private RtmpBuilder rtmpBuilder;
  private Button button;
  private EditText etUrl;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    setContentView(R.layout.activity_example_rtmp);
    SurfaceView surfaceView = (SurfaceView) findViewById(R.id.surfaceView);
    button = (Button) findViewById(R.id.b_start_stop);
    button.setOnClickListener(this);
    etUrl = (EditText) findViewById(R.id.et_rtmp_url);
    rtmpBuilder = new RtmpBuilder(surfaceView, this);
  }

  @Override
  public void onConnectionSuccessRtmp() {
    runOnUiThread(new Runnable() {
      @Override
      public void run() {
        Toast.makeText(ExampleRtmpActivity.this, "Connection success", Toast.LENGTH_SHORT).show();
      }
    });
  }

  @Override
  public void onConnectionFailedRtmp() {
    runOnUiThread(new Runnable() {
      @Override
      public void run() {
        Toast.makeText(ExampleRtmpActivity.this, "Connection failed", Toast.LENGTH_SHORT).show();
        rtmpBuilder.stopStream();
        button.setText(getResources().getString(R.string.start_button));
      }
    });
  }

  @Override
  public void onDisconnectRtmp() {
    runOnUiThread(new Runnable() {
      @Override
      public void run() {
        Toast.makeText(ExampleRtmpActivity.this, "Disconnected", Toast.LENGTH_SHORT).show();
      }
    });
  }

  @Override
  public void onAuthErrorRtmp() {
    runOnUiThread(new Runnable() {
      @Override
      public void run() {
        Toast.makeText(ExampleRtmpActivity.this, "Auth error", Toast.LENGTH_SHORT).show();
      }
    });
  }

  @Override
  public void onAuthSuccessRtmp() {
    runOnUiThread(new Runnable() {
      @Override
      public void run() {
        Toast.makeText(ExampleRtmpActivity.this, "Auth success", Toast.LENGTH_SHORT).show();
      }
    });
  }

  @Override
  public void onClick(View view) {
    if (!rtmpBuilder.isStreaming()) {
      if (rtmpBuilder.prepareAudio() && rtmpBuilder.prepareVideo()) {
        button.setText(getResources().getString(R.string.stop_button));
        rtmpBuilder.startStream(etUrl.getText().toString());
      } else {
        Toast.makeText(this, "Error preparing stream, This device cant do it", Toast.LENGTH_SHORT)
            .show();
      }
    } else {
      button.setText(getResources().getString(R.string.start_button));
      rtmpBuilder.stopStream();
    }
  }
}