我正在尝试制作一个洗衣订购应用程序。我已经进入了订单流程,在订单流程结束时,用户单击下一步按钮来结账订购的结果,我已经成功地做出了结账结果,但我所做的仍然是一个变量字符串。如何将结帐结果放入数组变量中,以便我可以将结果以 JSONArray 的形式发布?
这是我的订单 Activity 代码:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_produk);
// menghubungkan variablel pada layout dan pada java
listProduk = (ListView)findViewById(R.id.list_produk);
swipeProduct = (SwipeRefreshLayout)findViewById(R.id.swipeProduct);
radioExpress = (RadioButton)findViewById(R.id.radio_express);
radioReguler = (RadioButton)findViewById(R.id.radio_regular);
tvTotal = (TextView)findViewById(R.id.total);
next = (Button)findViewById(R.id.button_next);
actionBar = getSupportActionBar();
laundry_id = getIntent().getStringExtra(TAG_LAUNDRY_ID);
// untuk mengisi data dari JSON ke dalam adapter
productAdapter = new CheckboxAdapter(this, (ArrayList<ProductModel>) productList, this);
listProduk.setAdapter(productAdapter);
listProduk.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
productAdapter.setCheckBox(position);
}
});
// menampilkan widget refresh
swipeProduct.setOnRefreshListener(this);
swipeProduct.post(new Runnable() {
@Override
public void run() {
swipeProduct.setRefreshing(true);
productList.clear();
tvTotal.setText(String.valueOf(0));
radioReguler.isChecked();
regular = true;
productAdapter.notifyDataSetChanged();
callProduct();
}
}
);
next.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String checkbox = "";
for (ProductModel hold : productAdapter.getAllData()) {
int total = Integer.parseInt(hold.getProduct_price())*(hold.getCountProduct());
if (hold.isCheckbox()) {
checkbox += "\n" + hold.getProduct_name() + " " + total;
}
}
if (!checkbox.isEmpty()) {
dipilih = checkbox;
} else {
dipilih = "Anda Belum Memilih Menu.";
}
formSubmit(dipilih);
}
});
}
private void formSubmit(String hasil){
AlertDialog.Builder dialog = new AlertDialog.Builder(this);
LayoutInflater inflater = getLayoutInflater();
View dialogView = inflater.inflate(R.layout.form_submit, null);
dialog.setView(dialogView);
dialog.setIcon(R.mipmap.ic_launcher);
dialog.setTitle("Menu Yang Dipilih");
dialog.setCancelable(true);
txtnamaProduk = (TextView) dialogView.findViewById(R.id.txtNama_produk);
txtnamaProduk.setText(hasil);
dialog.setNeutralButton("CLOSE", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialog.show();
}
这是结果代码:
next.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String checkbox = "";
for (ProductModel hold : productAdapter.getAllData()) {
int total = Integer.parseInt(hold.getProduct_price())*(hold.getCountProduct());
if (hold.isCheckbox()) {
checkbox += "\n" + hold.getProduct_name() + " " + total;
}
}
if (!checkbox.isEmpty()) {
dipilih = checkbox;
} else {
dipilih = "Anda Belum Memilih Menu.";
}
formSubmit(dipilih);
}
});
}
在上面的代码中,我仍然使用变量复选框来容纳用户选择的订单的所有结果。如何将所有结果放入数组变量中,以便我可以将其作为 JSONArray 发布到服务器?请帮我解决这个问题。因为我还是 android 的初学者。
如果需要,这是我的适配器代码:
public class CheckboxAdapter extends BaseAdapter{
private Context context;
private ArrayList<ProductModel> productItems;
ProdukLaundry produk;
public CheckboxAdapter(Context context, ArrayList<ProductModel> items, ProdukLaundry produk) {
this.context = context;
this.productItems = items;
this.produk = produk;
}
@Override
public int getItemViewType(int position) {
return position;
}
@Override
public int getCount() {
return productItems.size();
}
@Override
public Object getItem(int position) {
return productItems.get(position);
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(final int position, View view, ViewGroup parent) {
final ViewHolder viewHolder;
final ProductModel items = productItems.get(position);
if(view == null) {
viewHolder = new ViewHolder();
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.list_produk, null, true);
viewHolder.checkBox = (CheckBox) view.findViewById(R.id.checkBox_productName);
viewHolder.decrease = (TextView) view.findViewById(R.id.decrease_product);
viewHolder.count = (TextView) view.findViewById(R.id.count_product);
viewHolder.increase = (TextView) view.findViewById(R.id.increase_product);
viewHolder.price = (TextView) view.findViewById(R.id.product_price);
view.setTag(viewHolder);
}else{
viewHolder = (ViewHolder) view.getTag();
}
viewHolder.checkBox.setText(items.getProduct_name());
viewHolder.price.setText(items.getProduct_price());
viewHolder.count.setText(String.valueOf(items.getCountProduct()));
//fungsi untuk set posisi textview + dan -
viewHolder.increase.setTag(R.integer.btn_plus_view, view);
viewHolder.increase.setTag(R.integer.btn_plus_pos, position);
viewHolder.decrease.setTag(R.integer.btn_minus_view, view);
viewHolder.decrease.setTag(R.integer.btn_minus_pos, position);
//fungsi untuk disable textview + dan - jika checkbox tidak di klik
viewHolder.decrease.setOnClickListener(null);
viewHolder.increase.setOnClickListener(null);
if(items.isCheckbox()){
viewHolder.checkBox.setChecked(true);
viewHolder.increase.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
View tempview = (View) viewHolder.increase.getTag(R.integer.btn_plus_view);
TextView tv = (TextView) tempview.findViewById(R.id.count_product);
Integer pos = (Integer) viewHolder.increase.getTag(R.integer.btn_plus_pos);
int countProduct = Integer.parseInt(tv.getText().toString()) + 1;
tv.setText(String.valueOf(countProduct));
productItems.get(pos).setCountProduct(countProduct);
produk.tambah(pos);
}
});
viewHolder.decrease.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
View tempview = (View)viewHolder.decrease.getTag(R.integer.btn_minus_view);
TextView tv = (TextView) tempview.findViewById(R.id.count_product);
Integer pos = (Integer) viewHolder.decrease.getTag(R.integer.btn_minus_pos);
int total = productItems.get(pos).getCountProduct();
if (total>0){
int countProduct = Integer.parseInt(tv.getText().toString()) - 1;
tv.setText(String.valueOf(countProduct));
productItems.get(pos).setCountProduct(countProduct);
produk.kurang(pos);
}
}
});
} else {
viewHolder.checkBox.setChecked(false);
//fungsi untuk reset jumlah harga dan produk pada checkbox
String count = viewHolder.count.getText().toString();
int jumlah = Integer.parseInt(count);
int harga = Integer.parseInt(productItems.get(position).getProduct_price());
int kurang = jumlah * harga;
viewHolder.count.setText("0");
productItems.get(position).setCountProduct(0);
produk.kurangCheckbox(kurang);
}
return view;
}
public ArrayList<ProductModel> getAllData(){
return productItems;
}
public void setCheckBox(int position){
ProductModel items = productItems.get(position);
items.setCheckbox(!items.isCheckbox());
notifyDataSetChanged();
}
static class ViewHolder{
TextView decrease, count, increase, price;
CheckBox checkBox;
}
}
最佳答案
只需创建 Arraylist 的 getter setter 方法,如下所示
完成订单:-
public class CompleteOrder {
List<OrderItem> order_items;
public List<OrderItem> getOrder_items() {
return order_items;
}
public void setOrder_items(List<OrderItem> order_items) {
this.order_items = order_items;
}
}
创建另一个要添加到数组列表中的变量的 Getter setter 类
订单项目:-
public class OrderItem {
String product_name;
int product_total;
public OrderItem(String product_name, int product_total) {
this.product_name = product_name;
this.product_total = product_total;
}
public String getProduct_name() {
return product_name;
}
public void setProduct_name(String product_name) {
this.product_name = product_name;
}
public int getProduct_total() {
return product_total;
}
public void setProduct_total(int product_total) {
this.product_total = product_total;
}
}
现在在您的 onClick 方法中只需创建新列表,如下所示
public void onClick(View view) {
String checkbox = "";
CompleteOrder completeOrder=new CompleteOrder();
List<OrderItem> masterProductorderCount=new ArrayList<>();
for (ProductModel hold : productAdapter.getAllData()) {
int total = Integer.parseInt(hold.getProduct_price())*(hold.getCountProduct());
if (hold.isCheckbox()) {
checkbox += "\n" + hold.getProduct_name() + " " + total;
masterProductorderCount.add(new OrderItem(holder.getProduct_name(),total);
}
}
completeOrder.setOrder_items(masterProductorderCount);
if (!checkbox.isEmpty()) {
dipilih = checkbox;
} else {
dipilih = "Anda Belum Memilih Menu.";
}
formSubmit(completeOrder);//pass object of CompleteOrder
}
});
CompleteOrder 对象给出如下 JSON 输出
{
"CompleteOrder":[
{
"product_name":"your product name",
"product_total":1
},
{
"product_name":"your product name",
"product_total":1
},
{
"product_name":"your product name",
"product_total":1
}
]
}
关于java - 如何将一些数据放入数组变量并作为 JSONarray 发布?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/53983464/