如何从像图像的json响应更新UI
您好我正在制作一个应用程序，需要在5列中显示listview中的席位。我正在使用aynctask来解析json中的值。基于我要显示的值。任何人请告诉我如何显示
seats in listview.Please anybody tell me any logics to display seats like this.
我需要什么：
我得到了什么：
我的json是：
[
{
"row1":[
{
"seat_name ":"A1",
"ticket_status":"booked",
"seatIsLadies":"true"
},
{
"seat_name ":"A2",
"ticket_status":"Not booked",
"seatIsLadies":"true"
},
{
"seat_name ":"A3",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"A4",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"A5",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"A6",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"A7",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"A8",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"A9",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"A10",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"A11",
"ticket_status":"Not booked",
"seatIsLadies":"false"
}
],
"row2":[
{
"seat_name ":"B1",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"B2",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"B3",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"B4",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"B5",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"B6",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"B7",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"B8",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"B9",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"B10",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"B11",
"ticket_status":"Not booked",
"seatIsLadies":"false"
}
],
"row3":[
{
"seat_name ":"NA",
"ticket_status":"",
"seatIsLadies":""
},
{
"seat_name ":"NA",
"ticket_status":"",
"seatIsLadies":""
},
{
"seat_name ":"NA",
"ticket_status":"",
"seatIsLadies":""
},
{
"seat_name ":"NA",
"ticket_status":"",
"seatIsLadies":""
},
{
"seat_name ":"NA",
"ticket_status":"",
"seatIsLadies":""
},
{
"seat_name ":"NA",
"ticket_status":"",
"seatIsLadies":""
},
{
"seat_name ":"NA",
"ticket_status":"",
"seatIsLadies":""
},
{
"seat_name ":"NA",
"ticket_status":"",
"seatIsLadies":""
},
{
"seat_name ":"NA",
"ticket_status":"",
"seatIsLadies":""
},
{
"seat_name ":"NA",
"ticket_status":"",
"seatIsLadies":""
},
{
"seat_name ":"C11",
"ticket_status":"Not booked",
"seatIsLadies":"false"
}
],
"row5":[
{
"seat_name ":"D1",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"D2",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"D3",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"D4",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"D5",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"D6",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"D7",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"D8",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"D9",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"D10",
"ticket_status":"Not booked",
"seatIsLadies":"false"
},
{
"seat_name ":"D11",
"ticket_status":"Not booked",
"seatIsLadies":"false"
}
]
}
]
在我的json中我有seat_name.if seat_name是NA然后我们想在listview中显示一个空格，否则我们想要显示座位图像。
我的代码：`
public class Seatparsing extends AsyncTask<String, String, ArrayList<HashMap<String, String>>> {
String response;
String jsonstr, seat_name, ticket_status, seatladies;
ProgressDialog dialog = new ProgressDialog(Seatvisible.this);
AndroidHttpClient maclient = AndroidHttpClient.newInstance("");
@Override
protected void onPreExecute() {
dialog.setCancelable(false);
dialog.setMessage("Please wait..");
dialog.setIndeterminate(false);
dialog.show();
}
@Override
protected ArrayList<HashMap<String, String>> doInBackground(String... params) {
HttpGet request = new HttpGet(url);
ResponseHandler<String> responseHandler = new BasicResponseHandler();
try {
response = maclient.execute(request, responseHandler);
} catch (ClientProtocolException exception) {
exception.printStackTrace();
return null;
} catch (IOException exception) {
exception.printStackTrace();
return null;
}
Log.i("Seats", "" + response);
Log.i("seaturl", "" + url);
jsonstr = response;
busdetails1 = new ArrayList<>();
if (jsonstr != null) {
HashMap<String, String> map2 = new HashMap<>();
try {
JSONArray array1 = new JSONArray(jsonstr);
for (int i = 0; i < array1.length(); i++) {
JSONObject objct1 = array1.getJSONObject(i);
JSONArray array2 = objct1.getJSONArray("row1");
for (int j = 0; j < array2.length(); j++) {
JSONObject objct2 = array2.getJSONObject(j);
seat_name = objct2.getString("seat_name ").toString();
ticket_status = objct2.getString("ticket_status");
seatladies = objct2.getString("seatIsLadies");
map2.put("seat_name", seat_name);
map2.put("ticket_status", ticket_status);
map2.put("seatIsLadies", seatladies);
}
busdetails1.add(map2);
}
} catch (Exception e) {
e.printStackTrace();
}
}
return busdetails1;
}
protected void onPostExecute(ArrayList<HashMap<String, String>> busdetails1) {
try {
dialog.dismiss();
customadapter adapter = new customadapter(getApplicationContext(), R.layout.seatlistview, busdetails1);
lv.setAdapter(adapter);
} catch (Exception e) {
e.printStackTrace();
}
}
}
public class customadapter extends ArrayAdapter {
private ArrayList<HashMap<String, String>> list;
private int resource;
private LayoutInflater inflater;
public customadapter(Context context, int resource, ArrayList<HashMap<String, String>> busdetails1) {
super(context, resource, busdetails1);
list = busdetails1;
this.resource = resource;
inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
}
@NonNull
@Override
public View getView(int i, View convertView, ViewGroup parent) {
convertView = inflater.inflate(resource, null);
ImageView imageView = (ImageView) convertView.findViewById(R.id.imageViewseat);
String seat_name = list.get(i).get("seat_name");
String ticket_status = list.get(i).get("ticket_status");
String seatIsLadies = list.get(i).get("seatIsLadies");
for(int l=0;l<busdetails1.size();l++) {
if (!seat_name.equals(null)) {
if (ticket_status.equals("booked")) {
if (seatIsLadies.equals("true")) {
imageView.setImageResource(R.drawable.reservedladies);
imageView.setClickable(false);
} else {
imageView.setImageResource(R.drawable.bookedseat);
imageView.setClickable(false);
}
} else {
imageView.setImageResource(R.drawable.available_seat_img);
}
} else {
imageView.setImageDrawable(null);
imageView.setClickable(false);
}
}
return convertView;
}
}`
我的xml文件：`
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_seatvisible"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.notebook.runtowin.Activity.Seatvisible">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/from_to"
android:layout_width="match_parent"
android:layout_height="35dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:background="@color/colorPrimaryDark"
android:text="Select your seat"
android:padding="5dp"
android:gravity="center_vertical"
android:textStyle="bold"
android:textColor="@color/colorwhite" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_below="@+id/from_to">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:background="#FFEB3B"
android:id="@+id/headinglayout">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/busname"
android:padding="5dp"
android:text="RUN TO WIN"
android:textStyle="bold"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="@+id/busname"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/seatnumber"
android:padding="5dp"
android:text="Seats :"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:text="25,24"
android:id="@+id/seatsnumber"/>
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/ticketprice"
android:layout_alignParentRight="true"
android:text="hsdshd"
android:textStyle="bold"
android:padding="5sp"
android:textSize="30sp"
android:layout_marginRight="10dp"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_below="@+id/headinglayout"
android:layout_marginTop="3dp"
android:paddingTop="10dp"
android:paddingRight="25dp"
android:paddingLeft="25dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/iconsteer"
android:id="@+id/imageView2"
android:layout_marginEnd="50dp"
android:layout_alignParentEnd="true"/>
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/imageView2"
android:layout_marginTop="20dp"
android:numColumns="5"
android:id="@+id/listviewseat">
</ListView>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="25dp"
android:layout_alignParentEnd="true"
android:gravity="center_horizontal"
android:background="@color/colorPrimaryDark"
>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="BOOK TICKETS"
android:padding="10dp"
android:id="@+id/bt_book"
android:textSize="20sp"/>
</RelativeLayout>
</LinearLayout>
</RelativeLayout>
</ScrollView>
Listview的我的xml文件：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="8sp"
android:gravity="top">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageViewseat"/>
</LinearLayout>
1 个答案:
答案 0 :(得分：0)
尝试使用baseadpater而不是arrayadapter。
public class Studentloader extends BaseAdapter implements OnClickListener{
private Context slcntx;
private ArrayList<HashMap<String, String>> data = new ArrayList<HashMap<String, String>>();
private static LayoutInflater inflater=null;
public ImageLoader imageLoader;
private String url;
public Studentloader() {
this.data = new ArrayList<HashMap<String, String>>();
}
public Studentloader(Context ctx, ArrayList<HashMap<String, String>> d) {
slcntx = ctx;
data=d;
inflater = (LayoutInflater)slcntx.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
imageLoader = new ImageLoader(slcntx);
}
public int getCount() {
return data.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public void clearData() { data.clear(); }
/********* Create a holder Class to contain inflated xml file elements *********/
public static class ViewHolder{
public TextView studentTV;
ImageView image;
}
public View getView(int position, View convertView, ViewGroup parent) {
View vi=convertView;
ViewHolder holder;
HashMap<String, String> pers = new HashMap<String, String>();
pers = data.get(position);
if(convertView==null) {
/****** Inflate tabitem.xml file for each row ( Defined below ) *******/
vi = inflater.inflate(R.layout.allfees, null);
/****** View Holder Object to contain tabitem.xml file elements ******/
holder = new ViewHolder();
holder.studentTV = (TextView) vi.findViewById(R.id.studentname);
holder.image = (ImageView) vi.findViewById(R.id.profileimage);
vi.setTag(holder);
} else holder=(ViewHolder)vi.getTag();
/************ Set holder with LayoutInflater ************/
holder.studentTV.setText(pers.get("studentsname"));
ImageView image = holder.image;
url = pers.get("urls"); //Using LazyImageLoader for loading images using URLs cz in my case I needed to upload student picture, so passed the url data in the arraylist and received it here.
System.out.println(url);
imageLoader.DisplayImage(url, image);
/******** Set Item Click Listner for LayoutInflater for each row ***********/
//vi.setOnClickListener(new AdapterView.OnItemClickListener(position));
return vi;
}
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
}
}
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