App crashing on button click

App crashing on button click

Whenever I click my button my app crashes. What am I doing wrong?
public void onClick(View v) {
int primaryLength = PRIMARY.length;
final String primaryText = PRIMARY[rnd.nextInt(primaryLength)];
int secondaryLength = SECONDARY.length;
final String secondaryText =
SECONDARY[rnd.nextInt(secondaryLength)];
final TextView textOne = (TextView)findViewById(R.id.textView1);
final TextView textTwo = (TextView)findViewById(R.id.textView2);
textOne.setText(primaryText);
textTwo.setText(secondaryText);
String primeT = primaryText;
Uri media = Uri.parse(primeT);
mpButtonOne = MediaPlayer.create(MainActivity.this, media);
mpButtonOne.start();
mpButtonOne.setOnCompletionListener(new OnCompletionListener() {
public void onCompletion(MediaPlayer mpButtonOne) {
String primeS = secondaryText;
Uri media2 = Uri.parse(primeS);
mpButtonTwo = MediaPlayer.create(MainActivity.this,
media2);
mpButtonTwo.start();
mpButtonTwo.setOnCompletionListener(new
soundListener1());
{
}
}
I want the randomly selected text that is displayed in textviews to be
entered as the location for the mediaplayer sound files, the words are the
names of the sound files in my raw folder. I'm a bit new and really not
sure if this is the right way to go about it.
09-11 16:50:40.128: E/AndroidRuntime(12531): FATAL EXCEPTION: main 09-11
16:50:40.128: E/AndroidRuntime(12531): java.lang.NullPointerException
09-11 16:50:40.128: E/AndroidRuntime(12531): at
com.spunktrunk.nastylittleman.MainActivity$1.onClick(MainActivity.java:62)
09-11 16:50:40.128: E/AndroidRuntime(12531): at
android.view.View.performClick(View.java:2408) 09-11 16:50:40.128:
E/AndroidRuntime(12531): at
android.view.View$PerformClick.run(View.java:8816) 09-11 16:50:40.128:
E/AndroidRuntime(12531): at
android.os.Handler.handleCallback(Handler.java:587) 09-11 16:50:40.128:
E/AndroidRuntime(12531): at
android.os.Handler.dispatchMessage(Handler.java:92) 09-11 16:50:40.128:
E/AndroidRuntime(12531): at android.os.Looper.loop(Looper.java:123) 09-11
16:50:40.128: E/AndroidRuntime(12531): at
android.app.ActivityThread.main(ActivityThread.java:4669) 09-11
16:50:40.128: E/AndroidRuntime(12531): at
java.lang.reflect.Method.invokeNative(Native Method) 09-11 16:50:40.128:
E/AndroidRuntime(12531): at
java.lang.reflect.Method.invoke(Method.java:521) 09-11 16:50:40.128:
E/AndroidRuntime(12531): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:876)
09-11 16:50:40.128: E/AndroidRuntime(12531): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:634) 09-11
16:50:40.128: E/AndroidRuntime(12531): at
dalvik.system.NativeStart.main(Native Method) 09-11 16:50:40.128:
W/ActivityManager(237): Force finishing activity
com.spunktrunk.nastylittleman/.MainActivity