请看这个屏幕:
当我点击接受更改为另一个按钮时:
如果我在可扩展 ListView 中单击一个 getChildView 列表项，它也会在滚动屏幕时影响其他子项。在这里，我在单击 getChildview 项时更改了按钮文本
这里我点击了一个 child 的接受按钮，然后它应该变成另一个按钮但是当滚动所有子项目按钮时也会改变
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private final Context context;
private final List<String> headings;
private List<DriverOrders> order;
GroupHolder holder;
public ExpandableListAdapter(final FragmentActivity fragmentActivity,
final List<String> lidtDataHeaders, final List<DriverOrders> orders
) {
this.context = fragmentActivity;
this.headings = lidtDataHeaders;
this.order = orders;
}
@Override
public Object getChild(final int groupPosition, final int childPosition) {
return this.headings.get(childPosition);
}
@Override
public long getChildId(final int groupPosition, final int childPosition) {
return childPosition;
}
@Override
public View getChildView(final int groupPosition,
final int childPosition, final boolean isLastChild,
View convertView, final ViewGroup parent) {
final String childName = (String) getChild(groupPosition, childPosition);
// GroupHolder holder;
holder = null;
if (convertView == null) {
final LayoutInflater inflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.driver_child_layout, null);
holder = new GroupHolder();
holder.orderNumber = (TextView) convertView.findViewById(R.id.orderNumber);
holder.taskType = (TextView) convertView.findViewById(R.id.taskType);
holder.detaisl = (TextView) convertView.findViewById(R.id.detaisl);
holder.accept = (Button) convertView.findViewById(R.id.accpet);
holder.decline = (Button) convertView.findViewById(R.id.decline);
holder.started = (Button) convertView.findViewById(R.id.started);
convertView.setTag(holder);
} else {
holder = (GroupHolder) convertView.getTag();
}
/* TextView orderNumber = (TextView) convertView.findViewById(R.id.orderNumber);
TextView taskType = (TextView) convertView.findViewById(R.id.taskType);
TextView detaisl = (TextView) convertView.findViewById(R.id.detaisl);
accept = (Button) convertView.findViewById(R.id.button);
decline = (Button) convertView.findViewById(R.id.decline);
started = (Button) convertView.findViewById(R.id.started);*/
convertView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.e("","inside convertview click"+parent.getChildAt(childPosition));
}
});
holder.started.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (flag) {
AsyncHttpClient client = new AsyncHttpClient();
client.get(null, CommonUtility.SERVER_URI + "person-started/" + Long.parseLong(order.get(groupPosition).getOrderId().trim()), new JsonHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, JSONObject response) {
super.onSuccess(statusCode, headers, response);
try {
if (response.getString("STATUS").equalsIgnoreCase("true")) {
mListener.onStarttrip(order.get(groupPosition).getOrderId(), order.get(groupPosition).getCustomerName(), order.get(groupPosition).getCustomerContact());
}
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onFailure(int statusCode, Header[] headers, Throwable throwable, JSONObject errorResponse) {
super.onFailure(statusCode, headers, throwable, errorResponse);
if (statusCode == 404) {
Toast.makeText(getActivity(), "Requested resource not found", Toast.LENGTH_LONG).show();
}
// When Http response code is '500'
else if (statusCode == 500) {
Toast.makeText(getActivity(), "Something went wrong at server end", Toast.LENGTH_LONG).show();
}
// When Http response code other than 404, 500
else {
Toast.makeText(getActivity(), "Unexpected Error occcured! [Most common Error: Device might not be connected to Internet or remote server is not up and running]", Toast.LENGTH_LONG).show();
}
}
});
} else {
Toast.makeText(getActivity(), "Before started you have to accept the order", Toast.LENGTH_LONG).show();
}
}
});
holder.orderNumber.setText(order.get(groupPosition).getCustomerName());
holder.taskType.setText(order.get(groupPosition).getCustomerContact());
holder.detaisl.setText(order.get(groupPosition).getOrderId());
holder.accept.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.e("", "group positioins" + groupPosition);
String associateId = sessionManager.getUserDetails().get("associate_id");
String oredeerid = order.get(groupPosition).getOrderId();
RequestParams params = new RequestParams();
params.put("oid", oredeerid);
params.put("did", associateId);
requestForAcceptOrder(params, groupPosition);
}
});
holder.decline.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
holder.decline.setFocusable(false);
holder.decline.setEnabled(false);
holder.decline.setClickable(false);
sessionManager.setDclineId(order.get(groupPosition).getOrderId());
Toast.makeText(getActivity(), "Order is declined", Toast.LENGTH_LONG).show();
Intent myIntent = new Intent(getActivity(), DeclineReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getActivity(), 0, myIntent, 0);
Long timeInMillis = new GregorianCalendar().getTimeInMillis() + 1000;
Log.d("pass", "!!!!!!!");
AlarmManager alarmManager = (AlarmManager) getActivity().getSystemService(Context.ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC, timeInMillis, 5400000, pendingIntent);
notifyDataSetChanged();
}
});
return convertView;
}
@Override
public int getChildrenCount(final int groupPosition) {
return 1;
}
@Override
public Object getGroup(final int groupPosition) {
return this.headings.get(groupPosition);
}
@Override
public int getGroupCount() {
return this.headings.size();
}
@Override
public long getGroupId(final int groupPosition) {
return groupPosition;
}
@SuppressLint("NewApi")
@Override
public View getGroupView(final int groupPosition,
final boolean isExpanded, View convertView,
final ViewGroup parent) {
final String headerTitle = (String) this.getGroup(groupPosition);
/* final ExpandableListView mExpandableListView = (ExpandableListView) parent;
mExpandableListView.expandGroup(0);*/
// to display indicator of Expandable view from left to right
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
CabOrderFragment.this.expnListView
.setIndicatorBounds(
CabOrderFragment.this.expnListView
.getWidth() - 50,
CabOrderFragment.this.expnListView
.getWidth());
} else {
CabOrderFragment.this.expnListView
.setIndicatorBoundsRelative(
CabOrderFragment.this.expnListView
.getWidth() - 50,
CabOrderFragment.this.expnListView
.getWidth());
}
final LayoutInflater infalInflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(
R.layout.expandlistview_heading_group, null);
// final ImageView image = (ImageView) convertView
// .findViewById(R.id.ivHeadeImage);
final TextView lblListHeader = (TextView) convertView
.findViewById(R.id.tvListHeader);
// image.setImageResource(this.images[groupPosition]);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle.toUpperCase(Locale.getDefault()));
lblListHeader.setTextSize(10);
return convertView;
}
@Override
public boolean hasStableIds() {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean isChildSelectable(final int groupPosition,
final int childPosition) {
// TODO Auto-generated method stub
return true;
}
private void requestForAcceptOrder(RequestParams params, final int groupPosition) {
AsyncHttpClient client = new AsyncHttpClient();
client.get(null, CommonUtility.SERVER_URI + "accept", params, new JsonHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, JSONObject obj) {
try {
if (obj.getInt("code") == 0) {
holder.accept.setVisibility(View.GONE);
holder.decline.setVisibility(View.INVISIBLE);
holder.started.setVisibility(View.VISIBLE);
Toast.makeText(getActivity(), "Oeder is Placed", Toast.LENGTH_LONG);
Intent myIntent = new Intent(getActivity(), DriverOrdersReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getActivity(), 0, myIntent, 0);
Log.d("stop alarm", "!!!!!!!");
AlarmManager alarmManager = (AlarmManager) getActivity().getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(pendingIntent);
flag = true;
Log.e("", "object data" + obj.toString());
} else {
Toast.makeText(getActivity(), "Oeder is Not Placed", Toast.LENGTH_LONG);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onFailure(int statusCode, Header[] headers, Throwable throwable, JSONObject errorResponse) {
super.onFailure(statusCode, headers, throwable, errorResponse);
if (statusCode == 404) {
Toast.makeText(getActivity(), "Requested resource not found", Toast.LENGTH_LONG).show();
}
// When Http response code is '500'
else if (statusCode == 500) {
Toast.makeText(getActivity(), "Something went wrong at server end", Toast.LENGTH_LONG).show();
}
// When Http response code other than 404, 500
else {
Toast.makeText(getActivity(), "Unexpected Error occcured! [Most common Error: Device might not be connected to Internet or remote server is not up and running]", Toast.LENGTH_LONG).show();
}
}
});
}
/*private view holder class*/
private class GroupHolder {
TextView orderNumber;
TextView taskType;
TextView detaisl;
Button accept;
Button decline;
Button started;
}
}
最佳答案
您的问题是由于 Recycling mechanism 引起的，您需要在 getChildView() 方法中重置文本颜色。
这可以通过 if{}else{} 案例来完成。
例如:
if(yourTextMustTakeTheDefaultColor){
// set the default color in your text
} else {
// set the other color
}
更新:
1)首先不要使用holder作为类变量。
从您的适配器中删除类变量 GroupHolder holder;。
然后像这样更改您的 getChildView() 代码:
GroupHolder holder;
if (convertView == null) {
final LayoutInflater inflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.driver_child_layout, null);
holder = new GroupHolder();
//the rest of code...
convertView.setTag(holder);
} else {
holder = (GroupHolder) convertView.getTag();
}
//the rest of code...
2) 就像我已经告诉你的那样:在 getChildView() 中添加 if else 案例来更新你的 View (我想你想更新 accept/下降/开始可见性)取决于子数据。
例如:
if(order.get(groupPosition).isAcceptedVisible()){
holder.accept.setVisibility(View.VISIBLE);
} else {
holder.accept.setVisibility(View.GONE);
}
3) 更改您的 requestForAcceptOrder() 以传递子位置。
private void requestForAcceptOrder(RequestParams params, final int groupPosition, final int childPosition)
4) 在 onSuccess() 方法中，您有 groupPosition 和 childPosition，更新您的列表的数据/模型并调用 notifyDataSetChanged ();，系统将负责更新您的 View 。
关于java - getChild 查看项目 onClickListener 正在影响 ExpandableListView Android 中的所有子项目，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33603030/