Ich find meinen Fehler nicht

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



public class Splash extends Activity {
	
	
	public void onCreate(Bundle savedInstanceState) {
		
		super.onCreate(savedInstanceState);
		setContentView(R.layout.splash);
		
		Thread timer = new Thread(){
			
		public void run(){
			try {	Thread.sleep(2500);
		
			}catch (InterruptedException e) {
					e.printStackTrace();
								 
			}finally{
					Intent Weiterleitung = new Intent("android.intent.action.MAINACT");
					startActivity(Weiterleitung);
		};
			}
		
		
	};
	timer.start();
	}

}

import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;

import java.util.List;

import android.view.Menu;
import android.view.MenuInflater;
import android.widget.ArrayAdapter;
import android.widget.ListView;


public class NeuesGebiet<T> extends ListActivity {
	ListView list;
	private DBAdapter db;

	
	@SuppressWarnings({ "rawtypes", "unchecked" })
	@Override
	public void onCreate(Bundle savedInstanceState){
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		db = new DBAdapter(this);
		db.open();
		
		  List<Gebiet> gebiete = db.getAllGebiet();
		  list = (ListView)findViewById(R.id.list);		
		  registerForContextMenu(getListView());
		 
		ArrayAdapter adapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1, gebiete);
		  list.setAdapter((adapter)); 
			    
			    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.main, menu);
        return true;
    }
		   
	
	

	
	@Override
	protected void onResume(){
		db.open();
		super.onResume();
	}
	
	@Override
	protected void onPause(){
		db.close();
		super.onPause();
	}
		

}

import java.util.ArrayList;
import java.util.List;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteDatabase;
import android.util.Log;


public class DBAdapter  {
	public static final String KEY_ROWID = "kunde_id";
	public static final String KEY_NAME = "name";
	private static final String TAG = "DBHelper";
	
	private static final String DATABASE_NAME = "gebiete.db";
	private static final int DATABASE_VERSION = 1;
	private static final String DATABASE_TABLE = "GListe";

	
	private static final String DATABASE_CREATE = "create table "
			+ DATABASE_TABLE +"(" + KEY_ROWID
			+" integer primary key autoincrement, " +KEY_NAME
			+" varchar(255);";
	
	private final Context context;
	private DatabaseHelper DBHelper;
    private SQLiteDatabase db;
	
	
    public DBAdapter(Context ctx) 
    {
        this.context = ctx;
        DBHelper = new DatabaseHelper(context);
    }
	
    private static class DatabaseHelper extends SQLiteOpenHelper{
    	DatabaseHelper(Context context) 
        {
            super(context, DATABASE_NAME, null, DATABASE_VERSION);
        }
        @Override
        public void onCreate(SQLiteDatabase db) 
        {
            db.execSQL(DATABASE_CREATE);
}
@Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion, 
        int newVersion) 
        {
            Log.w(TAG, "Upgrading database from version " + oldVersion 
                    + " to "
                    + newVersion + ", which will destroy all old data");
            db.execSQL("DROP TABLE IF EXISTS titles");
            onCreate(db);
        }
    
    }
    public DBAdapter open() throws SQLException 
    {
        db = DBHelper.getWritableDatabase();
        return this;
    }
    public void close() 
    {
        DBHelper.close();
    }
    public long insertGebiet(String name) 
    
    {
        ContentValues initialValues = new ContentValues();
        initialValues.put(KEY_NAME, name);
        
        return db.insert(DATABASE_TABLE, null, initialValues);
    }
    public boolean deleteGebiet(long rowId) 
    {
        return db.delete(DATABASE_TABLE, KEY_ROWID + 
                "=" + rowId, null) > 0;
    }
    public List<Gebiet> getAllGebiet() 
    {
        List<Gebiet> Gebiete = new ArrayList<Gebiet>();
        Cursor cursor =  db.query(DATABASE_TABLE, new String[] {
                KEY_ROWID, 
                KEY_NAME
                },
                null, 
                null, 
                null, 
                null, 
                KEY_NAME);
        cursor.moveToFirst();
        while(!cursor.isAfterLast()){
            Gebiet gebiet = cursortogebiet(cursor);
        Gebiete.add(gebiet);
        cursor.moveToNext();
        }
    cursor.close();
    return Gebiete;

    }

	private Gebiet cursortogebiet(Cursor c){
        Gebiet gebiet = new Gebiet();
        gebiet.setGebietId(c.getInt(0));
        gebiet.setName(c.getString(1));
       
              
        
        return gebiet;
        
    }

    public Cursor getGebiet(long rowId) throws SQLException 
    {
        Cursor mCursor =
                db.query(true, DATABASE_TABLE, new String[] {
                        KEY_ROWID,
                        KEY_NAME},                      
                        KEY_ROWID + "=" + rowId, 
                        null,
                        null, 
                        null, 
                        null, 
                        null);
        if (mCursor != null) {
            mCursor.moveToFirst();
        }
        return mCursor;
    }
    public boolean updateGebiet(long rowId, String name) 
            {
                ContentValues args = new ContentValues();
                args.put(KEY_NAME, name);
                
                return db.update(DATABASE_TABLE, args, 
                                 KEY_ROWID + "=" + rowId, null) > 0;
            }

}

public class Gebiet  {
	private long id;
	private String name;
	
	public long getGebietId() {
		return id;
	}

	public void setGebietId(long id) {
		this.id = id;
	}
	
	public String getName() {
		 return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	
	@Override
	public String toString(){
		return name;
	}
		
			 
}

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class GebAdd extends Activity{
    Button neuesgebiet;
    EditText tname;
    DBAdapter db;
    
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.neuesgebiet);
                   
        
        db = new DBAdapter(getBaseContext());
        db.open();
                
        tname   =   (EditText)findViewById(R.id.tname);

            
        neuesgebiet = (Button)findViewById(R.id.ok);
        neuesgebiet.setOnClickListener(new View.OnClickListener() {
            
            
            
            
            @Override
            public void onClick(View v) {
                if (!tname.getText().toString().equals("") )  
                {                    
                    long kunde_id = db.insertGebiet(tname.getText().toString());
                    
                    Intent intent = new Intent(GebAdd.this, null);
                    intent.putExtra("id", String.valueOf(kunde_id));
                    startActivity(intent);
                    Toast.makeText(getBaseContext(), "Daten gespeichert", Toast.LENGTH_LONG).show();
                } else  {
                    Toast.makeText(getBaseContext(), "Fehler: Es wurden nicht alle Felder ausgefüllt!", Toast.LENGTH_LONG).show();
                }
            }
        });
    
    }
        protected void onClose() {
        db.close();    
    }
    
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="de.marcoa.writeitdown"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        
         <activity
            android:name=".Splash"
            android:label="@string/app_name" 
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        
     
       
        
         <activity
            android:name=".NeuesGebiet"
            android:label="@string/app_name" 
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.MAINACT" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        
      	 <activity
            android:name=".GebAdd"
            android:label="@string/app_name" 
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.GEBADD" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        
      
       
    </application>

</manifest>