Add next button after listview

final MelonTask task = new MelonTask(this, this, lv, names, dataSelected, new Button[]{buttonPrev, buttonNext}, new int[]{offset, limit});
		task.execute(new String[] {"http://118.98.31.132:8000/mapi/chart/weekly/latest?limit=" + limit});
		View footerView = ((LayoutInflater)this.getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.next_back, null, false);
		lv.addFooterView(footerView);

		Button buto1 = (Button)findViewById(R.id.button1);
		buto1.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				Toast.makeText(v.getContext(), "masuk gak", Toast.LENGTH_LONG).show();
			}
		});