When I click "Run as an Android Application" on Eclipse, the following is displayed in the console

[2014-06-05 20:07:18 - StudentConnect] Android Launch!
[2014-06-05 20:07:18 - StudentConnect] adb is running normally.
[2014-06-05 20:07:18 - StudentConnect] Performing sandhu.student.connect.SplashActivity activity launch
[2014-06-05 20:07:18 - StudentConnect] Using default Build Tools revision 19.0.0
[2014-06-05 20:07:18 - StudentConnect] Refreshing resource folders.
[2014-06-05 20:07:18 - StudentConnect] Using default Build Tools revision 19.0.0
[2014-06-05 20:07:18 - StudentConnect] Starting incremental Pre Compiler: Checking resource changes.
[2014-06-05 20:07:18 - StudentConnect] Nothing to pre compile!
[2014-06-05 20:07:18 - StudentConnect] Starting incremental Package build: Checking resource changes.
[2014-06-05 20:07:18 - StudentConnect] Using default Build Tools revision 19.0.0
[2014-06-05 20:07:18 - StudentConnect] Skipping over Post Compiler.
[2014-06-05 20:07:20 - StudentConnect] Application already deployed. No need to reinstall.
[2014-06-05 20:07:20 - StudentConnect] Starting activity sandhu.student.connect.SplashActivity on device 0f0898b2
[2014-06-05 20:07:21 - StudentConnect] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=sandhu.student.connect/.SplashActivity }
[2014-06-05 20:07:21 - StudentConnect] ActivityManager: Warning: Activity not started, its current task has been brought to the front

After deployed to my phone, it only displays a black screen. I recently implemented a splash screen, but it was working fine before; however I think it might have something to do with the problem. Here are my java and xml files:

MainActivity.java

package sandhu.student.connect;

import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class MainActivity extends Activity {

    public WebView student_zangle;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);  
        WebView student_zangle = (WebView) findViewById(R.id.student_zangle);
        student_zangle.loadUrl("https://zangleweb01.clovisusd.k12.ca.us/studentconnect/");
        student_zangle.setWebViewClient(new WebViewClient());
        student_zangle.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
        WebSettings settings = student_zangle.getSettings();
        settings.setJavaScriptEnabled(true);
        settings.setBuiltInZoomControls(true);      
        settings.setLoadWithOverviewMode(true);
        settings.setUseWideViewPort(true);
    }


    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        WebView student_zangle = (WebView) findViewById(R.id.student_zangle);
        if ((keyCode == KeyEvent.KEYCODE_BACK) && student_zangle.canGoBack()) {
            student_zangle.goBack();
            return true;
        }
        else
        {
            finish();
        }
        return super.onKeyDown(keyCode, event);
    }

}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/blue"
    tools:context=".MainActivity" >

    <WebView
        android:id="@+id/student_zangle"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</RelativeLayout>

SplashActivity.java

package sandhu.student.connect;


import android.os.Bundle;
import android.preference.PreferenceActivity;

public class SplashActivity extends PreferenceActivity {

    @SuppressWarnings("deprecation")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);

        addPreferencesFromResource(R.xml.prefs);
    }



 }

splash_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/blue"
    android:orientation="vertical" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="250dp"
        android:layout_height="100dp"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="145dp"
        android:contentDescription="@string/zangle_logo"
        android:src="@drawable/logo" />

</RelativeLayout>

Also, here is a full copy of the logcat error output:

06-05 20:19:46.698: E/Watchdog(817): !@Sync 1952
06-05 20:20:09.971: E/memtrack(16438): Couldn't load memtrack module (No such file or directory)
06-05 20:20:09.971: E/android.os.Debug(16438): failed to load memtrack module: -2
06-05 20:20:11.012: E/memtrack(16451): Couldn't load memtrack module (No such file or directory)
06-05 20:20:11.012: E/android.os.Debug(16451): failed to load memtrack module: -2
06-05 20:20:11.202: E/EnterpriseContainerManager(817): ContainerPolicy Service is not yet ready!!!

Please help me figure out what is wrong, or at least point me in the right direction. Thanks in advance.