Android : Blank screen on splash screen load

I'm having real trouble trying to work out why this is hanging on a white screen. I could understand more if it setContentView went through and it was hanging on the splash but I really am lost as to why it doesnt even get there. Any help with why it is doing this would be greatly appreciated.

package com.example.cthulhu.ordabankiforandroid;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;


import org.json.JSONException;

public class SplashActivity extends Activity implements OnDictionariesObtainedListener, OnLanguagesObtainedListener {

public String[][] localisedLangs;
public String[][] localisedDicts;
private boolean dObtained;
private boolean lObtained;
private boolean error;
long startTime;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_splash);
    startTime = System.currentTimeMillis();
    isLocaleSet();
    dObtained = false;
    lObtained = false;
    error =false;
    getLocalisedLangs();
    getLocalisedDicts();
    checkTiming();

}
private void isLocaleSet(){
    final LocaleSettings localeSettings = new LocaleSettings(this);
    //if no language set in locale go to select language
    if (!localeSettings.getLocaleStatus()) {
        Intent intent = new Intent(SplashActivity.this, SelectLanguageActivity.class);
        SplashActivity.this.startActivity(intent);
        SplashActivity.this.finish();
    }
}

private void getLocalisedLangs(){
    //calls rest client to populate languages array
    final String langURL = "http://api.arnastofnun.is/ordabanki.php?list=dicts&agent=ordabankaapp";
    LanguageJsonHandler lJsonHandler = new LanguageJsonHandler(this);
    OrdabankiRestClientUsage langClient = new OrdabankiRestClientUsage();
    try {
        //Toast.makeText(getApplicationContext(), "getting languages", Toast.LENGTH_SHORT).show();
        langClient.getLanguages(langURL, lJsonHandler);
    } catch (JSONException e) {
        e.printStackTrace();
    }
}
private void getLocalisedDicts(){
    //calls rest client to populate dictionaries array
    final String dictURL = "http://api.arnastofnun.is/ordabanki.php?list=langs&agent=ordabankaapp";
    DictionaryJsonHandler dJsonHandler = new DictionaryJsonHandler(this);
    OrdabankiRestClientUsage dictClient = new OrdabankiRestClientUsage();
    try {
        //Toast.makeText(getApplicationContext(), "getting dictionaries", Toast.LENGTH_SHORT).show();
        dictClient.getDictionaries(dictURL, dJsonHandler);
    } catch (JSONException e) {
        e.printStackTrace();
    }
}
private void checkTiming(){
    //checks if splash screen has been up for a minimum of 2 seconds then moves to search screen
    final LocaleSettings localeSettings = new LocaleSettings(this);
    Runnable runnable = new Runnable() {
        public void run() {
            long endTime = startTime+2000;
            while (System.currentTimeMillis() < endTime) {
                synchronized (this) {
                    try {
                        Thread.sleep(endTime-System.currentTimeMillis());
                    } catch (Exception e) {e.printStackTrace();}
                }
            }
            //Toast.makeText(getApplicationContext(), "setting locale", Toast.LENGTH_SHORT).show();
            localeSettings.setLanguageFromPref(SearchScreen.class);
        }
    };
    Thread timingThread = new Thread(runnable);

    while(!error) {
        if (dObtained && lObtained) {
            //Toast.makeText(getApplicationContext(), "timing thread start", Toast.LENGTH_SHORT).show();
            timingThread.start();
        }
    }
}
@Override
public void onDictionariesObtained (Dictionary[]dictionaries){
    localisedDicts = new String[dictionaries.length][2];
    int index = 0;
    //Toast.makeText(getApplicationContext(), "dLoop", Toast.LENGTH_SHORT).show();
    for (Dictionary dict : dictionaries) {
        localisedDicts[index][1] = dict.getDictCode();
        localisedDicts[index][2] = dict.getDictName();
        index++;
    }
    dObtained=true;
}
@Override
public void onDictionariesFailure ( int statusCode){
    error = true;
    Toast.makeText(getApplicationContext(), "dictionary error", Toast.LENGTH_SHORT).show();
    //todo handle failure: error message, restart quit options
}
@Override
public void onLanguagesObtained (Language[]languages){
    localisedLangs = new String[languages.length][2];
    int index = 0;
    for (Language lang : languages) {
        localisedDicts[index][1] = lang.getLangCode();
        localisedDicts[index][2] = lang.getLangName();
        index++;
    }
    lObtained=true;
}
@Override
public void onLanguagesFailure (int statusCode){
   error= true;
    Toast.makeText(getApplicationContext(), "languages error", Toast.LENGTH_SHORT).show();
    //todo handle failure: error message, restart quit options
}


}