单击Edittext时，在Listview项目位置中出现问题
我正在使用ListView适配器，并且在单击EditText时尝试使按钮可见。它适用于一个项目，但在我尝试为多个项目执行此操作时无效。当我在第一个位置点击EditText时，那时我的其他位置项按钮不会显示。
public class CartAdapter extends BaseAdapter {
Context context;
ViewHolder holder;
public ArrayList<CartList> arr_cart;
private AsyncHttpClient client;
private RequestParams params;
private TextView tv_PayableAmount;
double dNationalShippingCost, dInternationalShippingCost, dSellingPrice,
dQuantity, TotalCost, dgetPayableTotal, dGrandTotal;
String totalString = null, sShippingCost = null, sNationalShippingCost,
sInternationalShippingCost, sQuantity, sSellingPrice,
sgetPayableTotal, sGrandTotal;
int count = 0;
Double d = null;
SessionManager sessionManager;
HashMap<String, String> userData;
private static LayoutInflater inflater = null;
public CartAdapter(Context context, ArrayList<CartList> arr_cart,
TextView tv_PayableAmount) {
// TODO Auto-generated constructor stub
this.context = context;
this.arr_cart = arr_cart;
this.tv_PayableAmount = tv_PayableAmount;
sessionManager = new SessionManager(context);
userData = sessionManager.getUserDetails();
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
private static class ViewHolder {
private TextView tv_Title, tv_Price, tv_SellingPrice,
tv_ShippingCharge, tv_TotalPrice, tv_Qty, tv_ShowSellingPrice,
tv_ShowShippingCharge, tv_ShowTotalPrice;
private EditText edt_Qty;
private Button btn_Save;
private ImageView iv_Cancel, iv_ProductImage;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return arr_cart.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
if (convertView == null) {
holder = new ViewHolder();
convertView = inflater.inflate(R.layout.cart_item, null);
holder.iv_ProductImage = (ImageView) convertView
.findViewById(R.id.iv_ProductImage);
holder.tv_Title = (TextView) convertView
.findViewById(R.id.tv_Title);
holder.tv_Qty = (TextView) convertView.findViewById(R.id.tv_Qty);
holder.edt_Qty = (EditText) convertView.findViewById(R.id.edt_Qty);
holder.btn_Save = (Button) convertView.findViewById(R.id.btn_Save);
holder.tv_Price = (TextView) convertView
.findViewById(R.id.tv_Price);
holder.tv_ShowSellingPrice = (TextView) convertView
.findViewById(R.id.tv_ShowSellingPrice);
holder.tv_SellingPrice = (TextView) convertView
.findViewById(R.id.tv_SellingPrice);
holder.tv_ShowShippingCharge = (TextView) convertView
.findViewById(R.id.tv_ShowShippingCharge);
holder.tv_ShippingCharge = (TextView) convertView
.findViewById(R.id.tv_ShippingCharge);
holder.tv_ShowTotalPrice = (TextView) convertView
.findViewById(R.id.tv_ShowTotalPrice);
holder.tv_TotalPrice = (TextView) convertView
.findViewById(R.id.tv_TotalPrice);
holder.iv_Cancel = (ImageView) convertView
.findViewById(R.id.iv_Cancel);
// holder.iv_Cancel.setTag(arr_cart.get(position));
// holder.btn_Save.setTag(arr_cart.get(position));
// holder.edt_Qty.setTag(arr_cart.get(position));
setTypeface();
convertView.setTag(holder);
} else {
// the getTag returns the viewHolder object set as a tag to the view
holder = (ViewHolder) convertView.getTag();
}
String[] image = arr_cart.get(position).getImage().split(",");
String firstImage = image[0];
if (firstImage.equals("")) {
} else {
Picasso.with(this.context).load(firstImage)
.into(holder.iv_ProductImage);
}
holder.tv_Title.setText(arr_cart.get(position).getAddTitle());
holder.edt_Qty.setText(arr_cart.get(position).getQuantity());
holder.tv_Price.setText(arr_cart.get(position).getAddPrice());
holder.tv_SellingPrice.setText(arr_cart.get(position)
.getAddSellingPrice());
makeTotal(position);
holder.iv_Cancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
deleteCartItem(position);
}
});
holder.edt_Qty.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
// updatequantity = holder.edt_Qty.getText().toString();
holder.btn_Save.setVisibility(View.VISIBLE);
}
});
holder.btn_Save.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
updateQuantity(position);
holder.btn_Save.setVisibility(View.GONE);
}
});
return convertView;
}
private void makeTotal(int position) {
// TODO Auto-generated method stub
try {
// get cost in String
sSellingPrice = arr_cart.get(position).getAddSellingPrice();
sNationalShippingCost = arr_cart.get(position)
.getAddNationalShippingCharge();
sInternationalShippingCost = arr_cart.get(position)
.getAddWorldShippingCharge();
sQuantity = holder.edt_Qty.getText().toString();
// sQuantity = arr_cart.get(position).getQuantity();
// convert in to double
dSellingPrice = Double.parseDouble(sSellingPrice);
dNationalShippingCost = Double.parseDouble(sNationalShippingCost);
dInternationalShippingCost = Double
.parseDouble(sInternationalShippingCost);
dQuantity = Double.parseDouble(sQuantity);
// total Shipping Cost in double
TotalCost = dQuantity
* (dInternationalShippingCost + dSellingPrice);
// convert in to string
sShippingCost = Double.toString(dInternationalShippingCost);
totalString = Double.toString(TotalCost);
holder.tv_ShippingCharge.setText(sShippingCost);
holder.tv_TotalPrice.setText(totalString);
} catch (NumberFormatException e) {
}
}
private void setTypeface() {
// TODO Auto-generated method stub
holder.tv_Title.setTypeface(Global.SetFontRegular(context));
holder.tv_Qty.setTypeface(Global.SetFontRegular(context));
holder.edt_Qty.setTypeface(Global.SetFontRegular(context));
holder.btn_Save.setTypeface(Global.SetFontRegular(context));
holder.tv_Price.setTypeface(Global.SetFontRegular(context));
holder.tv_SellingPrice.setTypeface(Global.SetFontRegular(context));
holder.tv_ShowSellingPrice.setTypeface(Global.SetFontRegular(context));
holder.tv_ShippingCharge.setTypeface(Global.SetFontRegular(context));
holder.tv_ShowShippingCharge
.setTypeface(Global.SetFontRegular(context));
holder.tv_TotalPrice.setTypeface(Global.SetFontRegular(context));
holder.tv_ShowTotalPrice.setTypeface(Global.SetFontRegular(context));
holder.tv_Title.setTypeface(Global.SetFontRegular(context));
holder.tv_Title.setTypeface(Global.SetFontRegular(context));
}
private void deleteCartItam(final int delete_position) {
// TODO Auto-generated method stub
client = new AsyncHttpClient();
params = new RequestParams();
client.getHttpClient()
.getParams()
.setParameter(CoreProtocolPNames.USER_AGENT,
Global.SERVER_HEADER);
params.put("cartId", arr_cart.get(delete_position).getCartId());
Log.e("params", "" + params);
client.post(Global.REMOVE_PRODUCT_FROM_CART_URL, params,
new JsonHttpResponseHandler() {
@Override
public void onStart() {
// TODO Auto-generated method stub
super.onStart();
}
@Override
public void onSuccess(int statusCode, Header[] headers,
JSONObject response) {
// TODO Auto-generated method stub
if (response != null) {
try {
if (response.getInt("ResponseCode") == 1
&& response.getBoolean("Result") == true) {
// Log.e("OnSuccess", "OnSuccess : "
// + response);
makeTotal(delete_position);
sgetPayableTotal = tv_PayableAmount
.getText().toString();
dgetPayableTotal = Double
.parseDouble(sgetPayableTotal);
// Log.e("total pay", "" + dgt);
// Log.e("delete total", "" + TotalCost);
dGrandTotal = dgetPayableTotal - TotalCost;
// Log.e("after delete pos", "" + grnto);
sGrandTotal = Double.toString(dGrandTotal);
tv_PayableAmount.setText(sGrandTotal);
arr_cart.remove(delete_position);
arr_cart.trimToSize();
CartAdapter.this.notifyDataSetChanged();
Global.ShowTost(context,
"Your Item is Deleted successfuly");
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
@Override
public void onFailure(int statusCode, Header[] headers,
String responseString, Throwable throwable) {
// TODO Auto-generated method stub
super.onFailure(statusCode, headers, responseString,
throwable);
Log.e("onFailure", "onFailure : " + responseString);
}
@Override
public void onFinish() {
// TODO Auto-generated method stub
super.onFinish();
}
});
}
@SuppressWarnings("static-access")
private void updateQuantity(final int update_position) {
// TODO Auto-generated method stub
client = new AsyncHttpClient();
params = new RequestParams();
client.getHttpClient()
.getParams()
.setParameter(CoreProtocolPNames.USER_AGENT,
Global.SERVER_HEADER);
params.put("userId", userData.get(sessionManager.KEY_USERID));
params.put("addId", arr_cart.get(update_position).getAddId());
params.put("quantity", holder.edt_Qty.getText().toString());
params.put("totalPrice", TotalCost);
Log.e("params", "" + params);
client.post(Global.INSERT_PRODUCT_IN_CART_URL, params,
new JsonHttpResponseHandler() {
@Override
public void onStart() {
// TODO Auto-generated method stub
super.onStart();
}
@Override
public void onSuccess(int statusCode, Header[] headers,
JSONObject response) {
// TODO Auto-generated method stub
if (response != null) {
try {
if (response.getInt("ResponseCode") == 1
&& response.getBoolean("Result") == true) {
// Log.e("OnSuccess", "OnSuccess : "
// + response);
// Log.e("olddddddddd", "" + TotalCost);
makeTotal(update_position);
sgetPayableTotal = tv_PayableAmount
.getText().toString();
dgetPayableTotal = Double
.parseDouble(sgetPayableTotal);
// Log.e("old totel", "" +
// dgetPayableTotal);
// Log.e("after update quantity", ""
// + TotalCost);
// Log.e("old delete total", ""
// + arr_cart.get(update_position)
// .getTotalPrice());
if (count == 0) {
updateQuantity(update_position);
// Log.e("in loop old totel", ""
// + dgetPayableTotal);
// Log.e("in loop after update quantity",
// "" + TotalCost);
// Log.e("in loop old delete total", ""
// + arr_cart.get(update_position)
// .getTotalPrice());
String str = arr_cart.get(
update_position)
.getTotalPrice();
d = Double.parseDouble(str);
// Log.e("dddd", "" + d);
double add = dgetPayableTotal
+ TotalCost;
// Log.e("add", "" + add);
dGrandTotal = add - d;
// Log.e("dGrandTotal", "" +
// dGrandTotal);
count++;
} else {
}
sGrandTotal = Double.toString(dGrandTotal);
tv_PayableAmount.setText(sGrandTotal);
// CartAdapter.this.notifyDataSetChanged();
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
@Override
public void onFailure(int statusCode, Header[] headers,
String responseString, Throwable throwable) {
// TODO Auto-generated method stub
super.onFailure(statusCode, headers, responseString,
throwable);
Log.e("onFailure", "onFailure : " + responseString);
}
@Override
public void onFinish() {
// TODO Auto-generated method stub
super.onFinish();
}
});
}
}
1 个答案:
答案 0 :(得分：1)
这是您的问题的示例代码
ButtonList.java
package com.example.helppeople;
import java.util.ArrayList;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.widget.ListView;
public class ButtonList extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listview);
ListView mLists = (ListView) findViewById(R.id.listbutton);
ArrayList<SampleList> mList = new ArrayList<SampleList>();
mList.add(new SampleList("123"));
mList.add(new SampleList("456"));
mList.add(new SampleList("789"));
mList.add(new SampleList("012"));
ButtonAdapter mAdapter = new ButtonAdapter(getApplicationContext(),
mList);
mLists.setAdapter(mAdapter);
}
}
listview.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ListView
android:id="@+id/listbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
ButtonAdapter.java
package com.example.helppeople;
import java.util.ArrayList;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.TextView;
public class ButtonAdapter extends BaseAdapter {
private ArrayList<SampleList> mList;
private Context mContext;
/*
* Creates the Adapter for the list
*/
public ButtonAdapter(Context context, ArrayList<SampleList> list) {
mList = list;
mContext = context;
}
/**
* inflate view for each row
*/
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
/* if the given channel row view is not being updated */
if (v == null) {
/* inflate layout */
LayoutInflater vi = LayoutInflater.from(mContext);
v = vi.inflate(R.layout.rowlist, null, false);
}
/* get the component pointers */
final TextView etname = (TextView) v.findViewById(R.id.textView1);
final Button button = (Button) v.findViewById(R.id.button1);
etname.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
button.setVisibility(View.VISIBLE);
}
});
return v;
}
@Override
public int getCount() {
return mList.size();
}
@Override
public SampleList getItem(int position) {
return mList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
}
rowlist.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="Button"
android:visibility="gone" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:layout_alignBaseline="@+id/button1"
android:layout_alignBottom="@+id/button1"
android:layout_alignParentLeft="true"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="@android:color/black" />
</RelativeLayout>
SampleList.java
package com.example.helppeople;
public class SampleList {
String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public SampleList(String name) {
super();
this.name = name;
}
}
这是工作代码，希望它可以帮助你
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