diff --git a/app/build.gradle b/app/build.gradle
index 91a85df..dfa7db0 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -37,14 +37,17 @@ dependencies {
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9'
     implementation 'androidx.core:core-ktx:1.3.2'
     implementation 'androidx.appcompat:appcompat:1.2.0'
-    implementation 'com.google.android.material:material:1.2.1'
-    implementation 'com.google.code.gson:gson:2.8.6'
+
     implementation 'androidx.constraintlayout:constraintlayout:2.0.2'
     implementation 'androidx.navigation:navigation-fragment:2.3.0'
     implementation 'androidx.navigation:navigation-ui:2.3.0'
     implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
     implementation 'androidx.navigation:navigation-fragment-ktx:2.3.0'
     implementation 'androidx.navigation:navigation-ui-ktx:2.3.0'
+    implementation 'androidx.security:security-crypto:1.1.0-alpha02'
+
+    implementation 'com.google.android.material:material:1.2.1'
+    implementation 'com.google.code.gson:gson:2.8.6'
 
     implementation 'org.jsoup:jsoup:1.13.1'
     implementation 'com.github.bumptech.glide:glide:4.11.0'
@@ -52,6 +55,11 @@ dependencies {
     implementation 'androidx.recyclerview:recyclerview:1.1.0'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0'
 
+    implementation 'com.google.android.exoplayer:exoplayer-core:2.12.0'
+    implementation 'com.google.android.exoplayer:exoplayer-hls:2.12.0'
+    implementation 'com.google.android.exoplayer:exoplayer-dash:2.12.0'
+    implementation 'com.google.android.exoplayer:exoplayer-ui:2.12.0'
+
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 3a11a13..86d309e 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -11,6 +11,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+        <activity android:name=".PlayerActivity"></activity>
         <activity
             android:name=".MainActivity"
             android:label="@string/app_name">
diff --git a/app/src/main/java/org/mosad/teapod/MainActivity.kt b/app/src/main/java/org/mosad/teapod/MainActivity.kt
index 502230e..0be7892 100644
--- a/app/src/main/java/org/mosad/teapod/MainActivity.kt
+++ b/app/src/main/java/org/mosad/teapod/MainActivity.kt
@@ -1,6 +1,8 @@
 package org.mosad.teapod
 
+import android.content.Intent
 import android.os.Bundle
+import android.util.Log
 import android.view.MenuItem
 import com.google.android.material.bottomnavigation.BottomNavigationView
 import androidx.appcompat.app.AppCompatActivity
@@ -8,6 +10,7 @@ import androidx.fragment.app.Fragment
 import androidx.fragment.app.commit
 import kotlinx.android.synthetic.main.activity_main.*
 import org.mosad.teapod.parser.AoDParser
+import org.mosad.teapod.preferences.EncryptedPreferences
 import org.mosad.teapod.ui.MediaFragment
 import org.mosad.teapod.ui.account.AccountFragment
 import org.mosad.teapod.ui.home.HomeFragment
@@ -69,7 +72,14 @@ class MainActivity : AppCompatActivity(), BottomNavigationView.OnNavigationItemS
     }
 
     private fun load() {
-        // TODO
+        EncryptedPreferences.readCredentials(this)
+
+        if (EncryptedPreferences.password.isEmpty()) {
+            Log.i(javaClass.name, "please login!")
+
+            // TODO show login dialog
+            //EncryptedPreferences.saveCredentials("", "", this)
+        }
     }
 
     fun showDetailFragment(media: GUIMedia) {
@@ -85,4 +95,11 @@ class MainActivity : AppCompatActivity(), BottomNavigationView.OnNavigationItemS
         println("visible !!!: " + mediaFragment.isVisible)
         println(supportFragmentManager.backStackEntryCount)
     }
+
+    fun startPlayer(streamUrl: String) {
+        val intent = Intent(this, PlayerActivity::class.java).apply {
+            putExtra("streamUrl", streamUrl)
+        }
+        startActivity(intent)
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/mosad/teapod/PlayerActivity.kt b/app/src/main/java/org/mosad/teapod/PlayerActivity.kt
new file mode 100644
index 0000000..19e317f
--- /dev/null
+++ b/app/src/main/java/org/mosad/teapod/PlayerActivity.kt
@@ -0,0 +1,107 @@
+package org.mosad.teapod
+
+import android.net.Uri
+import android.os.Bundle
+import android.view.View
+import androidx.appcompat.app.AppCompatActivity
+import com.google.android.exoplayer2.ExoPlayer
+import com.google.android.exoplayer2.MediaItem
+import com.google.android.exoplayer2.Player
+import com.google.android.exoplayer2.SimpleExoPlayer
+import com.google.android.exoplayer2.source.hls.HlsMediaSource
+import com.google.android.exoplayer2.upstream.DataSource
+import com.google.android.exoplayer2.upstream.DefaultDataSourceFactory
+import com.google.android.exoplayer2.util.Util
+import kotlinx.android.synthetic.main.activity_player.*
+
+
+class PlayerActivity : AppCompatActivity() {
+
+    private lateinit var player: SimpleExoPlayer
+    private lateinit var dataSourceFactory: DataSource.Factory
+
+    private var streamUrl = ""
+
+    private var playWhenReady = true
+    private var currentWindow = 0
+    private var playbackPosition: Long = 0
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_player)
+
+        streamUrl = intent.getStringExtra("streamUrl").toString()
+    }
+
+
+    override fun onStart() {
+        super.onStart()
+        if (Util.SDK_INT > 23) {
+            initPlayer()
+            if (video_view != null) video_view.onResume()
+        }
+    }
+
+    override fun onResume() {
+        super.onResume()
+        if (Util.SDK_INT <= 23) {
+            initPlayer()
+            if (video_view != null) video_view.onResume()
+        }
+    }
+
+    override fun onPause() {
+        super.onPause()
+        if (Util.SDK_INT <= 23) {
+            if (video_view != null) video_view.onPause()
+            releasePlayer()
+        }
+    }
+
+    override fun onStop() {
+        super.onStop()
+        if (Util.SDK_INT > 23) {
+            if (video_view != null) video_view.onPause()
+            releasePlayer()
+        }
+    }
+
+    private fun initPlayer() {
+        if (streamUrl.isEmpty()) {
+            println("no streamUrl set")
+            return
+        }
+
+        player = SimpleExoPlayer.Builder(this).build()
+        dataSourceFactory = DefaultDataSourceFactory(this, Util.getUserAgent(this, "Teapod"))
+
+        val mediaSource = HlsMediaSource.Factory(dataSourceFactory)
+            .createMediaSource(MediaItem.fromUri(Uri.parse(streamUrl)))
+
+        player.setMediaSource(mediaSource)
+        player.prepare()
+        player.play()
+
+        player.addListener(object : Player.EventListener {
+            override fun onPlaybackStateChanged(state: Int) {
+                super.onPlaybackStateChanged(state)
+
+                loading.visibility = when (state) {
+                    ExoPlayer.STATE_READY ->  View.GONE
+                    ExoPlayer.STATE_BUFFERING -> View.VISIBLE
+                    else -> View.GONE
+                }
+            }
+        })
+
+        video_view.player = player
+    }
+
+    private fun releasePlayer(){
+        playbackPosition = player.currentPosition
+        currentWindow = player.currentWindowIndex
+        playWhenReady = player.playWhenReady
+        player.release()
+    }
+
+}
diff --git a/app/src/main/java/org/mosad/teapod/dummy/DummyContent.kt b/app/src/main/java/org/mosad/teapod/dummy/DummyContent.kt
deleted file mode 100644
index 0707517..0000000
--- a/app/src/main/java/org/mosad/teapod/dummy/DummyContent.kt
+++ /dev/null
@@ -1,57 +0,0 @@
-package org.mosad.teapod.dummy
-
-import java.util.ArrayList
-import java.util.HashMap
-
-/**
- * Helper class for providing sample content for user interfaces created by
- * Android template wizards.
- *
- * TODO: Replace all uses of this class before publishing your app.
- */
-object DummyContent {
-
-    /**
-     * An array of sample (dummy) items.
-     */
-    val ITEMS: MutableList<DummyItem> = ArrayList()
-
-    /**
-     * A map of sample (dummy) items, by ID.
-     */
-    val ITEM_MAP: MutableMap<String, DummyItem> = HashMap()
-
-    private val COUNT = 25
-
-    init {
-        // Add some sample items.
-        for (i in 1..COUNT) {
-            addItem(createDummyItem(i))
-        }
-    }
-
-    private fun addItem(item: DummyItem) {
-        ITEMS.add(item)
-        ITEM_MAP.put(item.id, item)
-    }
-
-    private fun createDummyItem(position: Int): DummyItem {
-        return DummyItem(position.toString(), "Item " + position, makeDetails(position))
-    }
-
-    private fun makeDetails(position: Int): String {
-        val builder = StringBuilder()
-        builder.append("Details about Item: ").append(position)
-        for (i in 0..position - 1) {
-            builder.append("\nMore details information here.")
-        }
-        return builder.toString()
-    }
-
-    /**
-     * A dummy item representing a piece of content.
-     */
-    data class DummyItem(val id: String, val content: String, val details: String) {
-        override fun toString(): String = content
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/org/mosad/teapod/parser/AoDParser.kt b/app/src/main/java/org/mosad/teapod/parser/AoDParser.kt
index 680751b..705ceeb 100644
--- a/app/src/main/java/org/mosad/teapod/parser/AoDParser.kt
+++ b/app/src/main/java/org/mosad/teapod/parser/AoDParser.kt
@@ -4,16 +4,14 @@ import com.google.gson.JsonParser
 import kotlinx.coroutines.*
 import org.jsoup.Connection
 import org.jsoup.Jsoup
+import org.mosad.teapod.preferences.EncryptedPreferences
 import org.mosad.teapod.util.GUIMedia
 
 class AoDParser {
 
     private val baseURL = "https://www.anime-on-demand.de"
     private val loginPath = "/users/sign_in"
-
-    // TODO
-    private val login = ""
-    private val pwd = ""
+    private val libraryPath = "/animes"
 
     companion object {
         private var sessionCookies = mutableMapOf<String, String>()
@@ -39,8 +37,8 @@ class AoDParser {
             println("cookies: $cookies")
 
             val data = mapOf(
-                Pair("user[login]", login),
-                Pair("user[password]", pwd),
+                Pair("user[login]", EncryptedPreferences.login),
+                Pair("user[password]", EncryptedPreferences.password),
                 Pair("user[remember_me]", "1"),
                 Pair("commit", "Einloggen"),
                 Pair("authenticity_token", authenticityToken)
@@ -67,7 +65,7 @@ class AoDParser {
         if (sessionCookies.isEmpty()) login()
 
         withContext(Dispatchers.Default) {
-            val resAnimes = Jsoup.connect("$baseURL/animes")
+            val resAnimes = Jsoup.connect(baseURL + libraryPath)
                 .cookies(sessionCookies)
                 .get()
 
@@ -147,7 +145,7 @@ class AoDParser {
                 .get("sources").asJsonArray
 
             return@withContext sources.toList().map {
-                it.asJsonObject.get("file").toString()
+                it.asJsonObject.get("file").asString
             }
         }
     }
diff --git a/app/src/main/java/org/mosad/teapod/preferences/EncryptedPreferences.kt b/app/src/main/java/org/mosad/teapod/preferences/EncryptedPreferences.kt
new file mode 100644
index 0000000..de4c5ed
--- /dev/null
+++ b/app/src/main/java/org/mosad/teapod/preferences/EncryptedPreferences.kt
@@ -0,0 +1,66 @@
+package org.mosad.teapod.preferences
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.security.keystore.KeyGenParameterSpec
+import android.security.keystore.KeyProperties
+import android.util.Log
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.MasterKey
+import org.mosad.teapod.R
+
+object EncryptedPreferences {
+
+    var login = ""
+        internal set
+    var password = ""
+        internal set
+
+    fun saveCredentials(login: String, password: String, context: Context) {
+        this.login = login
+        this.password = password
+
+        with(getEncryptedPreferences(context)?.edit()) {
+            this?.putString(context.getString(R.string.save_key_user_login), login)
+            this?.putString(context.getString(R.string.save_key_user_password), password)
+            this?.apply()
+        }
+    }
+
+    fun readCredentials(context: Context) {
+        with(getEncryptedPreferences(context)) {
+            login = this?.getString(context.getString(R.string.save_key_user_login), "").toString()
+            password = this?.getString(context.getString(R.string.save_key_user_password), "").toString()
+        }
+    }
+
+    /**
+     * create a encrypted shared preference
+     */
+    private fun getEncryptedPreferences(context: Context): SharedPreferences? {
+        return try {
+            val spec = KeyGenParameterSpec.Builder(
+                MasterKey.DEFAULT_MASTER_KEY_ALIAS,
+                KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT)
+                .setBlockModes(KeyProperties.BLOCK_MODE_GCM)
+                .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_NONE)
+                .setKeySize(MasterKey.DEFAULT_AES_GCM_MASTER_KEY_SIZE)
+                .build()
+
+            val masterKey = MasterKey.Builder(context)
+                .setKeyGenParameterSpec(spec)
+                .build()
+
+            EncryptedSharedPreferences.create(
+                context,
+                context.getString(R.string.encrypted_preference_file_key),
+                masterKey,
+                EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+                EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+            )
+        } catch (ex: Exception) {
+            Log.e(javaClass.name, "Could not create encrypted shared preference.", ex)
+            null
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/org/mosad/teapod/ui/MediaFragment.kt b/app/src/main/java/org/mosad/teapod/ui/MediaFragment.kt
index 8f7bdbc..8fba103 100644
--- a/app/src/main/java/org/mosad/teapod/ui/MediaFragment.kt
+++ b/app/src/main/java/org/mosad/teapod/ui/MediaFragment.kt
@@ -7,8 +7,11 @@ import android.view.View
 import android.view.ViewGroup
 import com.bumptech.glide.Glide
 import kotlinx.android.synthetic.main.fragment_media.*
+import org.mosad.teapod.MainActivity
 import org.mosad.teapod.R
 import org.mosad.teapod.util.GUIMedia
+import java.net.URL
+import java.net.URLEncoder
 
 class MediaFragment(val media: GUIMedia, val streams: List<String>) : Fragment() {
 
@@ -36,7 +39,8 @@ class MediaFragment(val media: GUIMedia, val streams: List<String>) : Fragment()
     private fun onClickButtonPlay() {
         println("play ${streams.first()}")
 
-
+        val mainActivity = activity as MainActivity
+        mainActivity.startPlayer(streams.first())
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_player.xml b/app/src/main/res/layout/activity_player.xml
new file mode 100644
index 0000000..f214940
--- /dev/null
+++ b/app/src/main/res/layout/activity_player.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#000000"
+    tools:context=".PlayerActivity">
+
+    <com.google.android.exoplayer2.ui.PlayerView
+        android:id="@+id/video_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_gravity="center" />
+    <!--    app:controller_layout_id="@layout/player_custom_control"/>-->
+
+    <ProgressBar
+        android:id="@+id/loading"
+        android:layout_width="70dp"
+        android:layout_height="70dp"
+        android:layout_gravity="center" />
+
+</FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 585dd9b..e5789b3 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -4,4 +4,9 @@
     <string name="title_library">Library</string>
     <string name="title_search">Search</string>
     <string name="title_account">Account</string>
+
+    <!-- save keys -->
+    <string name="encrypted_preference_file_key" translatable="false">org.mosad.teapod.encrypted_preferences</string>
+    <string name="save_key_user_login" translatable="false">org.mosad.teapod.user_login</string>
+    <string name="save_key_user_password" translatable="false">org.mosad.teapod.user_password</string>
 </resources>
\ No newline at end of file