我是编程新手,在让 AlertDialog 正常工作时遇到了一些困难。我显示了六个按钮,我想在单击第六个按钮时添加警报对话框。但我收到一条错误消息,提示“构造函数 AlertDialog.Builder(LayoutOne, int) 未定义”。谁能帮我?
谢谢!
public class LayoutOne extends Fragment implements OnClickListener {
public static Fragment newInstance(Context context) {
LayoutOne f = new LayoutOne();
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
ViewGroup root = (ViewGroup) inflater
.inflate(R.layout.layout_one, null);
((Button) root.findViewById(R.id.drink)).setOnClickListener(this);
((Button) root.findViewById(R.id.sleep)).setOnClickListener(this);
((Button) root.findViewById(R.id.food)).setOnClickListener(this);
((Button) root.findViewById(R.id.events)).setOnClickListener(this);
((Button) root.findViewById(R.id.beach)).setOnClickListener(this);
((Button) root.findViewById(R.id.map)).setOnClickListener(this);
return root;
}
public void onClick(View v) {
// TODO Auto-generated method stub
Button tmp = (Button) v;
Button map = (Button) v;
if (tmp.getId() == R.id.drink) {
startActivity(new Intent("com.creatriks.zrce.DRINK"));
}
if (tmp.getId() == R.id.sleep) {
startActivity(new Intent("com.creatriks.zrce.SLEEP"));
}
if (tmp.getId() == R.id.food) {
startActivity(new Intent("com.creatriks.zrce.FOOD"));
}
if (tmp.getId() == R.id.events) {
startActivity(new Intent("com.creatriks.zrce.EVENTS"));
}
if (tmp.getId() == R.id.beach) {
startActivity(new Intent("com.creatriks.zrce.BEACH"));
}
if (map.getId() == R.id.map) {
AlertDialog alert = new AlertDialog.Builder(LayoutOne.this, AlertDialog.THEME_HOLO_LIGHT).create();
alert.setTitle("Options");
alert.setMessage("Choose an action");
startActivity(new Intent("com.creatriks.zrce.MAP"));
}
}
}