azesh azesh - 2 months ago 14
Java Question

android.app.SuperNotCalledException: Activity did not call through to super.onCreate()

Here is my

Android
Media player code. I don't know what I am missing in this code, when I run with breakpoint at line
MediaPlayer mp = new MediaPlayer()
in
Debug
mode. All the files in
zip
folder is played. But when I run the application in normal mode the first file is played and then I get this error:

android.app.SuperNotCalledException: Activity {com.example.mediaplayer/com.example.mediaplayer.MainActivity} did not call through to super.onCreate()


Code:

package com.example.mediaplayer;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import org.apache.commons.io.IOUtils;
import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.widget.Button;

public class MainActivity extends Activity {
private MediaPlayer mp;
private static final String MAIN_TAG ="ERROR";

@Override
protected void onCreate(Bundle savedInstanceState) {
try {
//final String file_loc= Environment.getExternalStorageDirectory().toString();
//Log.i("location",file_loc);
ZipFile zip = new ZipFile("/storage/emulated/0/AjeshDocument/sample.zip");

for(int i=1;i<7;i++){

ZipEntry entry = zip.getEntry("sample/rihanna_"+i+".mp3");
if (entry != null) {
InputStream in = zip.getInputStream(entry);
// see Note #3.
File tempFile = File.createTempFile("_AUDIO_", ".wav");
FileOutputStream out = new FileOutputStream(tempFile);
IOUtils.copy(in, out);

// do something with tempFile (like play it)
File f = tempFile;
try {
if (f.exists())
{
Log.i(MAIN_TAG,"Audio file found!");
MediaPlayer mp = new MediaPlayer();
FileInputStream fis = new FileInputStream(f);
mp.setDataSource(fis.getFD());
mp.prepare();
//mp.setLooping(false);
mp.start();
//mp.stop();
// mp.release();
Log.i(MAIN_TAG,"Pronounciation finished!");
}


else
{
Log.i(MAIN_TAG,"File doesn't exist!!");
}

}
catch (IOException e)
{
Log.i(MAIN_TAG,e.toString());
}
}
else {
// no such entry in the zip
}
} //for end
mp.release();

}
catch (Exception e) {
// handle your exception cases...

Log.i(MAIN_TAG,e.toString());

}

}

@Override
protected void onResume() {
Log.w("Info", "App Resume");

super.onResume();
}

@Override
protected void onStop() {
Log.w("Info", "App stopped");

super.onStop();
}

@Override
protected void onDestroy() {
Log.w("Info", "App destoryed");

super.onDestroy();
}

}

Answer

You didn't call the Activity's onCreate() method, i.e the super class' one. Add the call to MainActivity's onCreate() method:

public class MainActivity extends Activity {

    private MediaPlayer mp;    
    private static final String MAIN_TAG ="ERROR";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState); // this line is missing

    try {
    // your code...