Buttons and Layout bot loaded When I call ListActivity from Activity
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I have problem related with When I call ListActivity from  Activity. it gives me an error  When I call just drawing strong Code part from activity it works and gives me an List but I have a layout which consist of buttons and List.  Error case is that when I call ListView all of block codes ,it gives me an error. How can solve this issue?Please Help me
		
@Override
	protected void onCreate(Bundle savedInstanceState) 
	{	
          **super.onCreate(savedInstanceState);
	  setListAdapter(new ArrayAdapter<String(this,android.R.layout.simple_list_item_1, COUNTRIES));
	    getListView().setTextFilterEnabled(true);**
		 
	    setContentView(R.layout.activity_your_budget_categories);
		
		//Main Sayfasına geri Gider
		
		Button btn_ur_udget=(Button)findViewById(R.id.btnYourBudget);
		btn_ur_udget.setOnClickListener(new View.OnClickListener() {
			
			public void onClick(View v) 
			{
				Intent intent = new Intent();
                setResult(RESULT_OK, intent);
                finish();				
			}
		});	
				
		     
	     Button bntAddCat= (Button)findViewById(R.id.btnAddCategory);
			
			bntAddCat.setOnClickListener(new View.OnClickListener() {
				
				public void onClick(View v)
				{
					 Intent myIntent = new Intent(YourBudgetCategory.this, YourBudgetNewCategory.class);
					 YourBudgetCategory.this.startActivity(myIntent);
					
				}
			});
	}