如何在网格视图中为每个行和列使用相同的图像。在我的服务应用程序中，我得到了maxcol和maxrow。基于我想要创建具有相同图像的网格视图的条件。如果maxcol 5和maxrow 14，现在我想创建具有相同图像的网格视图14x5。请帮帮我。
主要活动：
public class MainActivity extends Activity {
GridView grid;
RelativeLayout r1;
int maxrows, maxcol;
ArrayList<LayoutData> data = new ArrayList<LayoutData>();
ArrayList<HashMap<String, String>> sheetdetails = new ArrayList<HashMap<String, String>>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
grid=(GridView)findViewById(R.id.gridview);
new GetRoute().execute("http://sb2.reloadit.in/TravelServices.asmx/Getlayout");
}
private class GetRoute extends AsyncTask<String, Void, JSONObject> {
/*String mJourneyDate;
public GetData(String pJourneyDate) {
this.mJourneyDate = pJourneyDate;
}*/ProgressDialog pd = null;
@Override
protected void onPreExecute() {
super.onPreExecute();
pd = ProgressDialog.show(MainActivity.this, "", "Loading...", true);
}
@Override
protected JSONObject doInBackground(String... params) {
String response;
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(params[0]);
List<NameValuePair> nameValuePair = new ArrayList<NameValuePair>(2);
nameValuePair.add(new BasicNameValuePair("RouteScheduleID","430723410"));
nameValuePair.add(new BasicNameValuePair("JourneyDate","2014-12-18"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePair));
HttpResponse responce = httpclient.execute(httppost);
HttpEntity httpEntity = responce.getEntity();
response = EntityUtils.toString(httpEntity);
Log.d("response is", response);
return new JSONObject(response);
} catch (Exception ex) {
ex.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(JSONObject result)
{
super.onPostExecute(result);
//Log.v("TAG_RESULTadapter",""+result);
pd.dismiss();
if(result != null)
{
try
{
JSONObject jobj = result.getJSONObject("Response");
String message = jobj.getString("Message");
String issuceess = jobj.getString("IsSuccess");
if(issuceess.equals("true"))
{
JSONObject layout = result.getJSONObject("Layout");
// Log.v("TAG_routearray",""+layoutarray);
maxrows=layout.getInt("MaxRows");
maxcol=layout.getInt("MaxColumns");
grid.setNumColumns(maxcol);
JSONArray routearray = layout.getJSONArray("SeatDetails");
for (int i = 0; i < routearray.length(); i++) {
String Row = routearray.getJSONObject(i).getString("Row");
// Log.v("TAG_routearray",""+Row);
String Col = routearray.getJSONObject(i).getString("Col");
String Height = routearray.getJSONObject(i).getString("Height");
String Width = routearray.getJSONObject(i).getString("Width");
String SeatNo = routearray.getJSONObject(i).getString("SeatNo");
String Gender = routearray.getJSONObject(i).getString("Gender");
String Deck = routearray.getJSONObject(i).getString("Deck");
String IsAvailable = routearray.getJSONObject(i).getString("IsAvailable");
String Fare = routearray.getJSONObject(i).getString("Fare");
LayoutData ld= new LayoutData();
ld.setRow(Row);
ld.setCol(Col);
ld.setHeight(Height);
ld.setWidth(Width);
ld.setSeatno(SeatNo);
ld.setGender(Gender);
ld.setDeck(Deck);
ld.setIsavailable(IsAvailable);
ld.setFare(Fare);
data.add(ld);
Log.v("TAG_Maxfare",""+Fare);
HashMap<String, String> map = new HashMap<String, String>();
map.put("Row", Row);
map.put("Col", Col);
map.put("Height", Height);
map.put("Width", Width);
map.put("SeatNo", SeatNo);
map.put("Deck", Deck);
map.put("IsAvailable", IsAvailable);
if(SeatNo.equalsIgnoreCase("")){
map.put("seat_img", ""+R.drawable.noseat);
}
else{
if(IsAvailable.equalsIgnoreCase("false")){
map.put("seat_img", ""+R.drawable.seatgreen);
}
/* if(IsAvailable.equalsIgnoreCase("false")){
map.put("seat_img", ""+R.drawable.seatgreen);
}*/else if(IsAvailable.equalsIgnoreCase("true")){
map.put("seat_img", ""+R.drawable.seat);
}
}
map.put("Fare", Fare);
sheetdetails.add(map);
}
CustomGrid adapter = new CustomGrid(MainActivity.this, sheetdetails);
grid.setAdapter(adapter);
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
else
{
Toast.makeText(MainActivity.this, "Network Problem", Toast.LENGTH_LONG).show();
}
}
}
}
ADAPTER CLASS：
![import java.util.ArrayList;
import java.util.HashMap;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class CustomGrid extends BaseAdapter{
private Context mContext;
ArrayList<HashMap<String, String>> sheetdetails = new ArrayList<HashMap<String, String>>();
public CustomGrid(Context c,ArrayList<HashMap<String, String>> sheetdetails) {
mContext = c;
this.sheetdetails= sheetdetails;
}@Override
public int getCount() {
// TODO Auto-generated method stub
return sheetdetails.size();
}@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return sheetdetails.get(position);
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View grid;
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
grid = new View(mContext);
grid = inflater.inflate(R.layout.row_grid, null);
ImageView imageView = (ImageView) grid.findViewById(R.id.grid_image);
HashMap<String, String> map = sheetdetails.get(position);
imageView.setImageResource(Integer.valueOf(map.get("seat_img")));
} else {
grid = (View) convertView;
}
return grid;
}
}][1]
JSON：
{
"ExtensionData": {},
"Response": {
"ExtensionData": {},
"Message": "",
"IsSuccess": true
},
"Route": {
"ExtensionData": {},
"RouteScheduleId": 428205707,
"JourneyDate": "/Date(1418668200000)/",
"CompanyId": 3964,
"CompanyName": "KPN Travels",
"FromCityId": 2667,
"FromCityName": "hyderabad",
"ToCityId": 2445,
"ToCityName": "bangalore",
"DepartureTime": "/Date(1418716800000)/",
"DepTime": "2014-12-16T13:30:00",
"ArrivalTime": "/Date(1418752800000)/",
"ArrTime": "2014-12-16T23:30:00",
"Fare": 1000,
"SeaterFareNAC": 0,
"SeaterFareAC": 1000,
"SleeperFareNAC": 0,
"SleeperFareAC": 0,
"HasAC": true,
"HasNAC": false,
"HasSeater": true,
"HasSleeper": false,
"BusLabel": "MULTI AXLE",
"RouteRemarks": null,
"BusTypeName": "2+2 (MULTI AXLE) : 44",
"CommPCT": 0,
"CommAmount": 90
},
"Layout": {
"ExtensionData": {},
"MaxRows": 14,
"MaxColumns": 5,
"SeatDetails": [
{
"ExtensionData": {},
"Row": 0,
"Col": 2,
"Height": 1,
"Width": 1,
"SeatNo": "",
"Gender": "M",
"IsAisle": true,
"Deck": 1,
"IsAC": true,
"IsSleeper": false,
"IsAvailable": false,
"Fare": 0,
"ChildFare": 0,
"InfantFare": 0
},
答案 0 :(得分：1)
将您的JSON值存储在数组列表中。将ArrayList传递给CustomGrid.class
ArrayList<HashMap<String, String>> sheetdetails = new ArrayList<HashMap<String, String>>();
for (int i = 0; i < routearray.length(); i++) {
String Row = routearray.getJSONObject(i).getString("Row");
// Log.v("TAG_routearray",""+Row);
String Col = routearray.getJSONObject(i).getString("Col");
String Height = routearray.getJSONObject(i).getString("Height");
String Width = routearray.getJSONObject(i).getString("Width");
String SeatNo = routearray.getJSONObject(i).getString("SeatNo");
String Gender = routearray.getJSONObject(i).getString("Gender");
String Deck = routearray.getJSONObject(i).getString("Deck");
String IsAvailable = routearray.getJSONObject(i).getString("IsAvailable");
String Fare = routearray.getJSONObject(i).getString("Fare");
Log.v("TAG_Maxfare", "" + Fare);
HashMap<String, String> map = new HashMap<String, String>();
map.put("Row", Row);
map.put("Col", Col);
map.put("Height", Height);
map.put("Width", Width);
map.put("SeatNo", SeatNo);
map.put("Deck", Deck);
map.put("IsAvailable", IsAvailable);
if(SeatNo.equalsIgnoreCase("")){
map.put("seat_img", ""+R.drawable.blank_img);
}else{
if(IsAvailable.equalsIgnoreCase("Available")){
map.put("seat_img", ""+R.drawable.avaliable_seat_img);
}else if(IsAvailable.equalsIgnoreCase("Not Available")){
map.put("seat_img", ""+R.drawable.not_avaliable_seat_img);
}
}
map.put("Fare", Fare);
sheetdetails.add(map);
}
CustomGrid adapter = new CustomGrid(MainActivity.this, sheetdetails);
yourgridview.setAdapter(adapter);
<强> CustomGrid.Class
更改此
public CustomGrid(Context c, int[] Imageid) {
mContext = c;
this.Imageid = Imageid;
}@Override
public int getCount() {
// TODO Auto-generated method stub
return Imageid.length;
}@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
要
ArrayList<HashMap<String, String>> sheetdetails = new ArrayList<HashMap<String, String>>();
public CustomGrid(Context c,ArrayList<HashMap<String, String>> sheetdetails) {
mContext = c;
this.sheetdetails= sheetdetails;
}@Override
public int getCount() {
// TODO Auto-generated method stub
return sheetdetails.size();
}@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return list.get(position);
}
在getview中
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View grid;
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
grid = new View(mContext);
grid = inflater.inflate(R.layout.row_grid, null);
ImageView imageView = (ImageView) grid.findViewById(R.id.grid_image);
HashMap<String, String> map = sheetdetails.get(position);
imageView.setImageResource(Integer.valueOf(map.get("seat_img")));
} else {
grid = (View) convertView;
}
return grid;
}
答案 1 :(得分：0)
如果你想要相同的图像，那么不要使用它：
imageView.setImageResource(Imageid[position]);
在您的getView方法中，只需设置一个图片资源：
imageView.setImageResource(R.drawable.ic_launcher); //replace id with your drawable id
如果要在GridView的所有项目中设置单个图像，则不需要维护可绘制数组。
修改
如果要将图像资源数组传递给BaseAdapter，则可以使用一个图像资源传递数组。像这样：
int[] Imageid = new int[]{R.drawable.myimage};
只需对所有项目使用Imageid [0]而不是Imageid [位置]。
imageView.setImageResource(Imageid[0]);
希望这有帮助。
修改
如果您想根据座位的可用性更改值，您可以使用2个图像的数组：
int[] Imageid = new int[]{R.drawable.available_seat, R.drawable.not_available_seat};
在您的getView方法中，只需检查您在json响应中获得的变量 IsAvailable 的可用性并相应地设置图像资源：
if(isAvailable) //you will need to declare a boolean variable and set it to true or false based on IsAvailable's value
imageView.setImageResource(Imageid[0]);
else
imageView.setImageResource(Imageid[1]);
希望这可以解除你的怀疑。