这可以在android中做吗？
{
"Topping": [
{
"topping_id": 1,
"topping_title": "title_1",
"topping_price": 1,
"Foods": [
{
"price": 1,
"lable": "price_1"
},
{
"price": 1.5,
"lable": "price_2"
},
{
"price": 2,
"lable": "price_3"
}
]
},
{
"topping_id": 2,
"topping_title": "title_2",
"topping_price": 1,
"Foods": [
{
"price": 1,
"lable": "price_1"
},
{
"price": 1.5,
"lable": "price_2"
},
{
"price": 2,
"lable": "price_3"
}
]
},
{
"topping_id": 3,
"topping_title": "title_3",
"topping_price": 1,
"Foods": [
{
"price": 1,
"lable": "price_1"
},
{
"price": 1.5,
"lable": "price_2"
},
{
"price": 2,
"lable": "price_3"
}
]
}
],
"Food_sizes": [
{
"price": 10,
"lable": "10\" SML",
"size": "price_1"
},
{
"price": 12,
"lable": "14\" MED",
"size": "price_2"
},
{
"price": 14,
"lable": "16\" LRG",
"size": "price_3"
}
]
}
这是我的json格式和Food_Sizes数组我要显示到Spinner（单选）...食品价格及其名称希望显示到listview ...每当微调器值改变列表视图值的价格也改变了......
我获取此数据的代码......
stringtoppingcombo = new ArrayList<>();
string_spinner_size = new ArrayList<>();
try {
List<NameValuePair> request_topping = new ArrayList<NameValuePair>();
request_topping.add(new BasicNameValuePair("food_id", title_id));
JSONObject jobject = jparser.makeHttpRequest(GET_TOPPING, "POST", request_topping);
jarray1 = jobject.getJSONArray("Topping");
for(int i=0; i<jarray1.length();i++) {
JSONObject jobjet = jarray1.getJSONObject(i);
ToppingCombo item = new ToppingCombo();
item.setTOPPINGID(jobjet.getInt("topping_id"));
item.setTOPPINGTITLE(jobjet.getString("topping_title"));
item.setTOPPINGPRICE(Float.parseFloat(jobjet.getString("topping_price")));
JSONArray food_array = jobjet.getJSONArray("Foods");
for (int k=0; k < food_array.length(); k++) {
JSONObject food_object = food_array.getJSONObject(k);
Food_Topping_Items_Sizes items_size = new Food_Topping_Items_Sizes();
items_size.setPriceTopping(Float.parseFloat(food_object.getString("price")));
items_size.setLabelTopping(food_object.getString("lable"));
item.setFoodItems(items_size);
}
toppingcomboitem.add(item);
}
jsonarray= jobject.getJSONArray("Food_sizes");
for(int j=0; j < jsonarray.length(); j++) {
JSONObject jsonobject_food_size = jsonarray.getJSONObject(j);
Food_size_Items items = new Food_size_Items();
items.setLabel(jsonobject_food_size.getString("lable"));
items.setPrice(Float.parseFloat(jsonobject_food_size.getString("price")));
items.setSize(jsonobject_food_size.getString("size"));
mFoodSize.add(items);
string_spinner_size.add(jsonobject_food_size.getString("lable").concat(" ").concat("- $").
concat(jsonobject_food_size.getString("price")));
}
我在listview中显示如下..
public View getView( final int position, View convertView, ViewGroup parent) {
View rowView = convertView;
if(null == rowView) {
rowView = mLayoutInflater.inflate(R.layout.list_toppingcheckbox, null);
viewHolder = new ViewHolder();
viewHolder.check_data = (CheckBox) rowView.findViewById(R.id.check_datas);
viewHolder.check_text = (TextView) rowView.findViewById(R.id.check_text);
rowView.setTag(viewHolder);
}
else {
viewHolder = (ViewHolder) rowView.getTag();
}
final ViewHolder viewHolder = (ViewHolder)rowView.getTag();
viewHolder.check_data.setText(toppingcomboitem.get(position).getTOPPINGTITLE().concat(" $ "));
spinner_selected_item_position_string = spinner_selected_item_position_text.getText().toString();
spinner_selected_item_position_int = Integer.parseInt(spinner_selected_item_position_string);
viewHolder.check_text.setText(String.valueOf(toppingcomboitem.get(position).getFoodItems().getPriceTopping()));
我的微调器显示如下......
if(string_spinner_size != null && string_spinner_size.size() > 1) {
spinner_size.setVisibility(View.VISIBLE);
spinner_size.setAdapter(new ArrayAdapter<String>(ToppingItems.this, android.R.layout.simple_spinner_dropdown_item, string_spinner_size));
spinner_selected_item_position_text.setText(String.valueOf(spinner_selected_item_position));
spinner_size.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0,
View arg1, int position, long arg3) {
topping_spinner_price = new TextView(ToppingItems.this);
topping_spinner_price.setText(String.valueOf(mFoodSize.get(position).getPrice()));
topping_string_price = topping_spinner_price.getText().toString();
topping_spinner_title = new TextView(ToppingItems.this);
topping_spinner_title.setText(mFoodSize.get(position).getLabel());
topping_string_title = topping_spinner_title.getText().toString();
topping_spinner_size = new TextView(ToppingItems.this);
topping_spinner_size.setText(mFoodSize.get(position).getSize());
topping_string_size = topping_spinner_size.getText().toString();
spinner_selected_item_position = spinner_size.getSelectedItemPosition();
spinner_selected_item_position_text.setText(String.valueOf(spinner_selected_item_position));
topping_checkbox_adapter.notifyDataSetChanged();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) { }
});
} else {
spinner_size.setVisibility(View.INVISIBLE);
}
答案 0 :(得分：1)
您可以使用nest for循环来获取嵌套字符串，如下所示，
JSONObject jsonRootObject = new JSONObject(jsonString);
//Get the instance of JSONArray that contains JSONObjects
JSONArray jsonArray = jsonRootObject.getJSONArray("Employee");
//Iterate the jsonArray to get values
for(int i=0; i < jsonArray.length(); i++){
JSONObject jsonObject = jsonArray.getJSONObject(i);
int id = Integer.parseInt(jsonObject.getString("id"));
//assume name contains first name and last name (nest strings)
JSONArray jsonArray1 = jsonRootObject.getJSONArray("name");
//Iterate the jsonArray1 to get nest values
for(int inner=0;inner < jsonArray1.length();inner++){
JSONObject jsonObject1 = jsonArray1.getJSONObject(inner);
String firstname=jsonObject1.getString("firstname");
String lastname=jsonObject1.getString("lastname");
}
}
答案 1 :(得分：-1)
这实际上是3个不同的问题但是 1.您应该使用JSONObject，它为您提供解析json所需的所有功能：
JSONObject object = new JSONObject(YOUR_STRING);
现在你可以用这个对象做任何你想做的事情，如：
object.getString("dsf");
object.getJSONObject("nested");
答案 2 :(得分：-1)
是..最后我找到了解决方案......
jarray1 = jobject.getJSONArray("Topping");
for(int i=0; i<jarray1.length();i++) {
JSONObject jobjet = jarray1.getJSONObject(i);
ToppingCombo item = new ToppingCombo();
item.setTOPPINGID(jobjet.getInt("topping_id"));
item.setTOPPINGTITLE(jobjet.getString("topping_title"));
item.setTOPPINGPRICE(Float.parseFloat(jobjet.getString("topping_price")));
JSONArray food_array = jobjet.getJSONArray("Foods");
ArrayList<Food_Topping_Items_Sizes> food_topping_sizes = new ArrayList<Food_Topping_Items_Sizes>();
for (int k=0; k < food_array.length(); k++) {
JSONObject food_object = food_array.getJSONObject(k);
Food_Topping_Items_Sizes itemsize = new Food_Topping_Items_Sizes();
price = food_object.getString("price");
itemsize.setPriceTopping(Float.parseFloat(price));
lable = food_object.getString("lable");
itemsize.setLabelTopping(lable);
food_topping_sizes.add(itemsize);
}
item.setFoodItems(food_topping_sizes);
toppingcomboitem.add(item);
}
jsonarray= jobject.getJSONArray("Food_sizes");
for(int j=0; j < jsonarray.length(); j++) {
JSONObject jsonobject_food_size = jsonarray.getJSONObject(j);
Food_size_Items items = new Food_size_Items();
items.setLabel(jsonobject_food_size.getString("lable"));
food_lable_checking = jsonobject_food_size.getString("lable");
items.setPrice(Float.parseFloat(jsonobject_food_size.getString("price")));
items.setSize(jsonobject_food_size.getString("size"));
mFoodSize.add(items);
string_spinner_size.add(jsonobject_food_size.getString("lable").concat(" ").concat("- $").
concat(jsonobject_food_size.getString("price")));
}
}
And my Model Class is...
public class ToppingCombo implements Parcelable {
private int topping_id;
private String topping_title;
private float topping_price;
private String topping_food_size_name;
private float topping_food_size_price;
private boolean selected;
private ArrayList<Food_Topping_Items_Sizes> food_topping_sizes;
private String label_topping;
private float price_topping;
public boolean isSelected() {
return selected;
}
public void setSelected(boolean selected) {
this.selected = selected;
}
public ArrayList<Food_Topping_Items_Sizes> getFoodItems() {
return food_topping_sizes;
}
public void setFoodItems(ArrayList<Food_Topping_Items_Sizes> food_topping_sizes2) {
this.food_topping_sizes = food_topping_sizes2;
}
public float getPriceTopping() {
return price_topping;
}
public void setPriceTopping(float food_price) {
price_topping = food_price;
}
public String getLabelTopping() {
return label_topping;
}
public void setLabelTopping(String food_label) {
label_topping = food_label;
}
public String getTOPPINGFOODSIZE() {
return topping_food_size_name;
}
public void setTOPPINGFOODSIZE(String topping_food_size) {
topping_food_size_name = topping_food_size;
}
public float getTOPPINGFOODPRICE() {
return topping_food_size_price;
}
public void setTOPPINGFOODPRICE(float topping_food_price) {
topping_food_size_price = topping_food_price;
}
public int getTOPPINGID() {
return topping_id;
}
public void setTOPPINGID(int id) {
topping_id = id;
}
public String getTOPPINGTITLE() {
return topping_title;
}
public void setTOPPINGTITLE(String title) {
topping_title = title;
}
public float getTOPPINGPRICE() {
return topping_price;
}
public void setTOPPINGPRICE(float price) {
topping_price = price;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(topping_id);
dest.writeString(topping_title);
dest.writeFloat(topping_price);
dest.writeString(topping_food_size_name);
dest.writeFloat(topping_food_size_price);
dest.writeString(label_topping);
dest.writeFloat(price_topping);
dest.writeList(food_topping_sizes);
}
public static final Parcelable.Creator<ToppingCombo> CREATOR = new Parcelable.Creator<ToppingCombo>() {
public ToppingCombo createFromParcel(Parcel in) {
return new ToppingCombo(in);
}
public ToppingCombo[] newArray(int size) {
return new ToppingCombo[size];
}
};
@SuppressWarnings("unchecked")
private ToppingCombo(Parcel in) {
topping_id = in.readInt();
topping_title = in.readString();
topping_price = in.readFloat();
topping_food_size_name = in.readString();
topping_food_size_price = in.readFloat();
label_topping = in.readString();
price_topping = in.readFloat();
food_topping_sizes = in.readArrayList(Food_Topping_Items_Sizes.class.getClassLoader());
}
public ToppingCombo() {
}
}
Inner Json Model Class...
public class Food_Topping_Items_Sizes实现了Parcelable {
private String label_topping;
private float price_topping;
private String size_topping;
public String getSizeTopping() {
return size_topping;
}
public void setSizeTopping(String food_size) {
size_topping = food_size;
}
public float getPriceTopping() {
return price_topping;
}
public void setPriceTopping(float food_price) {
price_topping = food_price;
}
public String getLabelTopping() {
return label_topping;
}
public void setLabelTopping(String food_label) {
label_topping = food_label;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(label_topping);
dest.writeFloat(price_topping);
dest.writeString(size_topping);
}
public static final Parcelable.Creator<Food_Topping_Items_Sizes> CREATOR = new Parcelable.Creator<Food_Topping_Items_Sizes>() {
public Food_Topping_Items_Sizes createFromParcel(Parcel in) {
return new Food_Topping_Items_Sizes(in);
}
public Food_Topping_Items_Sizes[] newArray(int size) {
return new Food_Topping_Items_Sizes[size];
}
};
private Food_Topping_Items_Sizes(Parcel in) {
label_topping = in.readString();
price_topping = in.readFloat();
size_topping = in.readString();
}
public Food_Topping_Items_Sizes() {
}
}