Multiple videoview issue
<p>i have app contain 5 button each button open different videoview , when i create code , i have red mark under : (new MediaController(this)) , i try alot to solve it but i cant ,</p>

<p>please any advice to get out of it , i'm Novice in  android development ,</p>

<p>thanks </p>

<p>UPDATE after apply changed to : (new MediaController(this)) , get another error</p>

<p><strong>my code :</strong></p>

<p><strong>MultipleButton CLASS :</strong></p>

<pre><code>public class MultipleButton extends Activity {
    String night;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

    }

    public void handleClick(View v){
        //Create an intent to start the new activity.
        Intent intent = new Intent();
        intent.setClass(this,My_videos.class);
        intent.putExtra("video",night);
        startActivity(intent);
    }
}
</code></pre>

<p>My_videos CLASS :<strong>strong text</strong> </p>

<pre><code> public class My_videos extends Activity {
    private Button button;
    private VideoView vid;
    String night;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.video);


    initializeVideoViews(); }

    private void initializeVideoViews() {


        String night = getIntent().getStringExtra("video");

        if(night.equalsIgnoreCase("button1")){
        button = (Button) findViewById(R.id.button1);

        button.setOnClickListener(new OnClickListener() {

          public void onClick(View arg0) {

                 vid =(VideoView) findViewById(R.id.videoView1);
                 vid.setVideoURI(Uri.parse("android.resource://" +
                                      getPackageName() +"/"+R.raw.a));
            vid.setMediaController(new MediaController(My_videos.this));
                 vid.requestFocus();
                 vid.start();


                   }
                         });       }



         else if(night.equalsIgnoreCase("button2")){

         button = (Button) findViewById(R.id.button2);

            button.setOnClickListener(new OnClickListener() {

              public void onClick(View arg0) {

              vid = (VideoView) findViewById(R.id.videoView1);
                 vid.setVideoURI(Uri.parse("android.resource://" +
                                       getPackageName() +"/"+R.raw.b));
            vid.setMediaController(new MediaController(My_videos.this));
                 vid.requestFocus();



              }
            });}

         else if(night.equalsIgnoreCase("button3")){

         button = (Button) findViewById(R.id.button3);

            button.setOnClickListener(new OnClickListener() {

              public void onClick(View arg0) {

              vid = (VideoView) findViewById(R.id.videoView1);
                 vid.setVideoURI(Uri.parse("android.resource://" +
                                       getPackageName() +"/"+R.raw.c));
            vid.setMediaController(new MediaController(My_videos.this));
                     vid.requestFocus();



              }
            });}

         else if(night.equalsIgnoreCase("button4")){

         button = (Button) findViewById(R.id.button4);

            button.setOnClickListener(new OnClickListener() {

              public void onClick(View arg0) {

              vid = (VideoView) findViewById(R.id.videoView1);
                 vid.setVideoURI(Uri.parse("android.resource://" +
                                     getPackageName() +"/"+R.raw.d));
            vid.setMediaController(new MediaController(My_videos.this));
                     vid.requestFocus();


              }
            });}
         else if(night.equalsIgnoreCase("button5")){

         button = (Button) findViewById(R.id.button5);

            button.setOnClickListener(new OnClickListener() {

              public void onClick(View arg0) {

              vid = (VideoView) findViewById(R.id.videoView1);
                 vid.setVideoURI(Uri.parse("android.resource://" +
                                    getPackageName() +"/"+R.raw.e));
            vid.setMediaController(new MediaController(My_videos.this));
                     vid.requestFocus();


              }
            });

        }}}
</code></pre>

<p>UPDATE :    <strong>strong text</strong> </p>

<p><strong>LOGCAT:</strong></p>

<pre><code>I/Process(25196): Sending signal. PID: 25196 SIG: 9
D/AndroidRuntime(25447): Shutting down VM
W/dalvikvm(25447): threadid=1: thread exiting with uncaught exception (group=0x40015578)
E/AndroidRuntime(25447): FATAL EXCEPTION: main
E/AndroidRuntime(25447): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tsn.dr/com.tsn.dr.My_videos}: java.lang.NullPointerException
E/AndroidRuntime(25447):at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:1651) 
E/AndroidRuntime(25447):at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:1667) 
E/AndroidRuntime(25447):at android.app.ActivityThread.access$1500 (ActivityThread.java:117)
E/AndroidRuntime(25447):at android.app.ActivityThread$H.handleMessage (ActivityThread.java:935)
E/AndroidRuntime(25447):at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(25447):at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime(25447):at android.app.ActivityThread.main(ActivityThread.java:3687)
E/AndroidRuntime(25447):at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(25447):at java.lang.reflect.Method.invoke(Method.java:507)
E/AndroidRuntime(25447):at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:842)
E/AndroidRuntime(25447):at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:600)
E/AndroidRuntime(25447):at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime(25447): Caused by: java.lang.NullPointerException
E/AndroidRuntime(25447):at com.tsn.dr.My_videos.initializeVideoViews (My_videos.java:31)
E/AndroidRuntime(25447):at com.tsn.dr.My_videos.onCreate(My_videos.java:24)
E/AndroidRuntime(25447):at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1047)
E/AndroidRuntime(25447):at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:1615)
E/AndroidRuntime(25447):    ... 11 more
</code></pre>

<p>manifest.xml:</p>

<pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.tsn.dr"
android:versionCode="1"
android:versionName="1.0" &gt;

&lt;uses-sdk android:minSdkVersion="8" /&gt;

&lt;application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name" &gt;
    &lt;activity
        android:name=".MultipleButton"
        android:label="@string/app_name" &gt;
        &lt;intent-filter&gt;
            &lt;action android:name="android.intent.action.MAIN" /&gt;

            &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
        &lt;/intent-filter&gt;
    &lt;/activity&gt;
    &lt;activity android:name=".My_videos"
              android:label="@string/app_name"&gt;
    &lt;/activity&gt;
&lt;/application&gt;
</code></pre>

<p></p>

<p>main.xml:</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" &gt;

    &lt;Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:onClick="handleClick"
        android:text="Button" /&gt;

    &lt;Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:onClick="handleClick"
        android:text="Button" /&gt;

    &lt;Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:onClick="handleClick"
        android:text="Button" /&gt;

    &lt;Button
        android:id="@+id/button4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:onClick="handleClick"
        android:text="Button" /&gt;

    &lt;Button
        android:id="@+id/button5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:onClick="handleClick"
        android:text="Button" /&gt;
&lt;/LinearLayout&gt;
</code></pre>

<p>video.xml:</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" &gt;

    &lt;VideoView
        android:id="@+id/videoView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" /&gt;

&lt;/LinearLayout&gt;
</code></pre>
