我对推送通知一无所知.我在尝试学习.但我无法理解.我在服务器系统中有一个表mysql数据库.如果表中的任何更改意味着我想显示为Android手机的通知请给我建议给我
我把我的android屏幕划分为2个fragements.在第一个我从服务器数据库到android mobile制作一个listview.问题是我不能在基础适配器类中调用getview方法.帮帮我吧
public class MyListFragment1 extends ListFragment {
ImageView back;
String url = Main.url;
String Qrimage;
Bitmap bmp;
ListView list ;
AppetiserFragment adapter;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.applistviewfragment, container, false);
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// back=(ImageView)findViewById(R.id.backfoodmenu);
/*
* back.setOnClickListener(new OnClickListener() {
*
* public void onClick(View v) { // TODO Auto-generated method stub
* Intent intent=new Intent(getApplicationContext(),FoodMenu.class);
* intent.putExtra("url", url); startActivity(intent); …我现在可以将值存储在一个变量中,我希望将该变量传递给片段.
使用以下代码,我可以加载片段.
public class AndroidListFragmentActivity extends Activity {
Fragment2 f2;
public static String itemname;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.apetiserfragement);
itemname=getIntent().getStringExtra("itemname");
Bundle args=new Bundle();
args.putString("itemname", itemname);
f2=new Fragment2();
f2.setArguments(args);
}
}
(这里我使用XML页面加载片段)itemname
输出分为2个窗口,一个用于扩展listfragment(对于listview).一个用于碎片
Fragment2.xml
public class Fragment2 extends Fragment {
String itemname;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
System.out.println(getArguments().getString("itemname"));
return inflater.inflate(R.layout.fragment2, container, false);
}
@Override
public void onCreate(Bundle savedInstanceState) { …我在行自定义列表视图中显示了itemimage,itemname,rate,qty,price和delete按钮..如果我单击删除按钮意味着我想删除listview中的整行.
我试试这段代码
public class CustomAdapter extends BaseAdapter {
public static Double x = 0.0;
public static Double z;
ArrayList<Integer> selectprice = new ArrayList<Integer>();
public static ArrayList<String> arr1 = new ArrayList<String>();
public static ArrayList<String> itemprice = new ArrayList<String>();
public static ArrayList<Bitmap> itemimage = new ArrayList<Bitmap>();
ArrayList<Integer> total = new ArrayList<Integer>();
public Context Context;
private LayoutInflater inflater;
HashMap<String, String> map = new HashMap<String, String>();
public CustomAdapter(Context context, ArrayList<String> arr,
ArrayList<String> price, ArrayList<Bitmap> image) {
Context = context;
inflater = LayoutInflater.from(context);
arr1 = …