我正在尝试在 ListView 项中显示多个图像。所有数据都完美设置，但是当我在 ListView 项目内显示多个图像时，它在创建时完美显示，但滚动页面后，它在 ListView 项目内显示双图像。我以编程方式创建 ImageView 并添加到线性布局中。还有如何获取 ImageView 位置。我在下面附上图片。如何修复这个错误
这是我的适配器代码。
@NonNull
@Override
public View getView(final int position, View convertView, @NonNull ViewGroup parent) {
final ApproveReimbBin item = getItem(position);
FoldingCell cell = (FoldingCell) convertView;
ViewHolder viewHolder;
String date = item.getStr_startDate();
String[] splitDate = date.split("To");
String profileName = item.getStr_name();
String profileEmpId = item.getStr_empId();
String profileType = item.getStr_type();
String profileAmount = item.getStr_amount();
String[] childDocument = item.getStr_documents();
if (cell == null) {
viewHolder = new ViewHolder();
LayoutInflater vi = LayoutInflater.from(getContext());
cell = (FoldingCell) vi.inflate(R.layout.adapter_approvereimburs, parent, false);
// binding view parts to view holder
viewHolder.imag_listProfileImage = cell.findViewById(R.id.list_image);
viewHolder.txt_listName = cell.findViewById(R.id.list_profileName);
viewHolder.txt_listEmpId = cell.findViewById(R.id.list_profileEmpId);
viewHolder.txt_listType = cell.findViewById(R.id.list_profileType);
viewHolder.image_childProfileImage = cell.findViewById(R.id.child_profile_img);
viewHolder.txt_name = cell.findViewById(R.id.txt_profile_name);
viewHolder.txt_empId = cell.findViewById(R.id.txt_profile_id);
viewHolder.txt_type = cell.findViewById(R.id.txt_profile_type);
viewHolder.txt_frmDate = cell.findViewById(R.id.txt_from_date);
viewHolder.txt_toDate = cell.findViewById(R.id.txt_to_date);
viewHolder.txt_amount = cell.findViewById(R.id.txt_amount);
viewHolder.btn_reject = cell.findViewById(R.id.btn_reject);
viewHolder.btn_approve = cell.findViewById(R.id.btn_approve);
viewHolder.linearLayout = cell.findViewById(R.id.linearLayout_Image);
cell.setTag(viewHolder);
} else {
if (unfoldedIndexes.contains(position)) {
cell.unfold(true);
Log.e("suraj", "unfold call");
} else {
cell.fold(true);
Log.e("suraj", "fold call");
}
viewHolder = (ViewHolder) cell.getTag();
}
if (null == item)
return cell;
String ImageUrl = ServerUrls.Web.IMAGE_URL + profileEmpId.trim() + ".jpg";
ImageView image;
if (childDocument.length > 0) {
for (int i = 0; i < childDocument.length; i++) {
String doc = childDocument[i].replace("~", "");
doc = doc.replace(",", "");
image = new ImageView(mContext);
image.setLayoutParams(new android.view.ViewGroup.LayoutParams(80, 60));
image.setMaxHeight(50);
image.setMaxWidth(50);
Picasso.with(mContext)
.load(imageDocument.trim() + doc)
.error(R.drawable.doc_img)
.into(image);
viewHolder.linearLayout.addView(image);
int lent = childDocument.length;
Log.e("surajj", "docu " + imageDocument.trim() + doc + " position " + i + " lenth " + lent);
}
} else {
viewHolder.linearLayout.setVisibility(View.GONE);
}
Picasso.with(mContext)
.load(ImageUrl.trim())
.error(R.drawable.ic_user)
.into(viewHolder.imag_listProfileImage);
Picasso.with(mContext)
.load(ImageUrl.trim())
.error(R.drawable.ic_user)
.into(viewHolder.image_childProfileImage);
if (profileName != null || !profileName.equals(" ")) {
viewHolder.txt_listName.setText(profileName);
viewHolder.txt_name.setText(profileName);
}
if (profileEmpId != null || !profileEmpId.equals(" ")) {
viewHolder.txt_listEmpId.setText(profileEmpId);
viewHolder.txt_empId.setText(profileEmpId);
}
if (profileType != null || !profileType.equals(" ")) {
viewHolder.txt_listType.setText(profileType);
viewHolder.txt_type.setText(profileType);
}
if (profileAmount != null || !profileAmount.equals(" ")) {
viewHolder.txt_amount.setText(profileAmount);
}
if (splitDate != null || !splitDate.equals(" ")) {
if (splitDate.length == 2) {
Log.d("suraj1", "fromDate " + splitDate[0] + " toDate " + splitDate[1]);
viewHolder.txt_frmDate.setText(splitDate[0]);
viewHolder.txt_toDate.setText(splitDate[1]);
} else {
Log.d("suraj1", "onlyfromDate " + splitDate[0]);
viewHolder.txt_frmDate.setText(splitDate[0]);
}
}
viewHolder.btn_approve.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
requestId = item.getStr_requestId();
reimbursmentId = item.getStr_reimbursementid();
action = "Approved";
Methods.showProgressDialog(mContext);
unfoldedIndexes.clear();
new asyncSendRequest().execute();
}
});
viewHolder.btn_reject.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
requestId = item.getStr_requestId();
reimbursmentId = item.getStr_reimbursementid();
action = "Rejected";
Methods.showProgressDialog(mContext);
unfoldedIndexes.clear();
new asyncSendRequest().execute();
}
});
return cell;
}
这是我的 Json
[ { "documents": [
"~\\Upload\\10 Nov 2017\\KB94L636459349491385669.jpg,"
],
"username": "Pranav Khanvilkar",
"empcode": "313395",
"type": "TRAIN / BUS PASS",
"startEndDate": "03-Nov-2017 To 02-Dec-2017",
"requestid": "1916",
"amount": "265",
"reimbursementid": "3",
"applyDate": "11/10/2017 6:22:29 PM" }, {
"documents": [
"~\\Upload\\07 Apr 2018\\XHKZU636586950672544266.jpg,",
"~\\Upload\\07 Apr 2018\\2V44D636586950672674273.jpg,"
],
"username": "Anil Pawar",
"empcode": "313325",
"type": "SALES VISIT",
"startEndDate": "05-Apr-2018 To 06-Apr-2018",
"requestid": "8448",
"amount": "400",
"reimbursementid": "4",
"applyDate": "4/7/2018 10:51:04 AM" }]
这是我遇到的问题。
滚动页面之前。 
滚动页面后。
最佳答案
在 for 循环之前使用以下代码。
if (viewHolder.linearLayout..getChildCount()>0)
viewHolder.linearLayout.removeAllViews();
并在调用此 for 循环之后
if (childDocument.length > 0) {
for (int i = 0; i < childDocument.length; i++) {
String doc = childDocument[i].replace("~", "");
doc = doc.replace(",", "");
image = new ImageView(mContext);
image.setLayoutParams(new android.view.ViewGroup.LayoutParams(80, 60));
image.setMaxHeight(50);
image.setMaxWidth(50);
Picasso.with(mContext)
.load(imageDocument.trim() + doc)
.error(R.drawable.doc_img)
.into(image);
viewHolder.linearLayout.addView(image);
int lent = childDocument.length;
Log.e("surajj", "docu " + imageDocument.trim() + doc + " position " + i + " lenth " + lent);
}
} else {
viewHolder.linearLayout.setVisibility(View.GONE);
}
关于java - 如何在 ListView 中显示多个图像？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49974715/