我有两个微调器视图的自定义适配器列表视图。
每个微调器都有一个后台进程。初始化时，微调器view.OnItemSelectedListener在没有任何外部输入的情况下被不必要地递归调用
班级档案
public class ClientListAdapter extends BaseAdapter implements SpinnerAdapter {
Context context;
int layoutResourceId;
ArrayList<GetClientListDetail> data = null;
ArrayList<GetClientListDetail> temp = null;
String ID, str;
Typeface typeface;
PopupWindow cp;
private ProgressDialog progressDialog;
String[] Status1 = new String[] { "Waiting", "Away","No Show"};
String[] Status2 = new String[] { "In Service",
"Generate Bill", "Completed" };
SpinnerAdapterlist TherapistAdapter = null;
ArrayAdapter<String> StatusAdapter = null;
ArrayList<GetTherapistProperties> TherapistList ;
private LayoutInflater inflater;
RemoveClient RC;
ChangeStatus CS;
ChangeTherapist CT;
ClientListHolder holder ;
int _therapistID;
GetClientListDetail ap;
GetTherapistProperties tp;
boolean networkavailable=false;
public ClientListAdapter(Context context, int textViewResourceId,
ArrayList<GetClientListDetail> gld, ArrayList<GetTherapistProperties> therapislist) {
super();
this.layoutResourceId = textViewResourceId;
this.context = context;
this.data = gld;
this.mGalleryCount1 = gld.size();
this.mGalleryCount2=gld.size();
this.TherapistList=therapislist;
inflater=LayoutInflater.from(context);
Resources res = context.getResources();
TherapistAdapter = new SpinnerAdapterlist(context,
R.layout.spinnerlayout, TherapistList);
StatusAdapter = new ArrayAdapter<String>(context,
android.R.layout.simple_dropdown_item_1line, Status1);
}
@Override
public int getCount() {
return data.size();
}
@Override
public GetClientListDetail getItem(int position) {
return data.get(position);
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View row = convertView;
if (row == null) {
holder = new ClientListHolder();
row = inflater.inflate(layoutResourceId, parent, false);
holder.tv_no = (TextView) row
.findViewById(R.id.tv_clientwaitlayout_no);
holder.tv_name = (TextView) row
.findViewById(R.id.tv_clientwaitlayout_name);
holder.tv_status = (Spinner) row
.findViewById(R.id.tv_clientwaitlayout_status);
holder.tv_therapist = (Spinner) row
.findViewById(R.id.tv_clientwaitlayout_therapist);
holder.iv_edit=(ImageView) row.findViewById(R.id.btn_clientwaitlayout_edit);
holder.iv_action = (ImageView) row
.findViewById(R.id.btn_clientwaitlayout_action);
holder.tv_unchange_therapist=(TextView) row.findViewById(R.id.tv_clientwaitlayout_unchange_name);
holder.tv_unchange_status=(TextView) row.findViewById(R.id.tv_clientwaitlayout_unchange_status);
row.setTag(holder);
} else {
holder = (ClientListHolder) row.getTag();
}
holder.tv_therapist.setAdapter(TherapistAdapter);
holder.tv_status.setAdapter(StatusAdapter);
ap = data.get(position);
tp=TherapistList.get(position);
holder.tv_name.setText(ap.getCLDName());
holder.tv_no.setText(ap.getCLDNo());
if(ap.getCLDStatus().equals("1") ){
Log.d("LOOP","Sub If condition");
holder.tv_therapist.setVisibility(View.VISIBLE);
holder.tv_status.setVisibility(View.VISIBLE);
holder.tv_unchange_therapist.setVisibility(View.GONE);
holder.tv_unchange_status.setVisibility(View.GONE);
holder.iv_action.setVisibility(View.GONE);
holder.iv_edit.setVisibility(View.VISIBLE);
try {
for(int x=0;x<TherapistList.size();x++){
if(ap.getCLDTherapist().equals(TherapistList.get(x).getID())){
holder.tv_therapist.setSelection(x);
}else{
}
}
} catch (NumberFormatException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
holder.tv_status.setSelection(Integer.parseInt(ap.getCLDStatus()) - 1);
} catch (ArrayIndexOutOfBoundsException e2) {
// TODO Auto-generated catch block
holder.tv_status.setSelection(0);
}
}else if(ap.getCLDStatus().equals("2") | ap.getCLDStatus().equals("6")){
holder.tv_therapist.setVisibility(View.VISIBLE);
holder.tv_status.setVisibility(View.VISIBLE);
holder.tv_unchange_therapist.setVisibility(View.GONE);
holder.tv_unchange_status.setVisibility(View.GONE);
holder.iv_action.setVisibility(View.GONE);
holder.iv_edit.setVisibility(View.GONE);
try {
for(int x=0;x<TherapistList.size();x++){
if(ap.getCLDTherapist().equals(TherapistList.get(x).getID())){
holder.tv_therapist.setSelection(x);
}else{
}
}
} catch (NumberFormatException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
if(ap.getCLDStatus().equals("2")){
holder.tv_status.setSelection(1);
}else{
holder.tv_status.setSelection(2);
}
} catch (ArrayIndexOutOfBoundsException e2) {
// TODO Auto-generated catch block
holder.tv_status.setSelection(0);
}
}else{
holder.tv_therapist.setVisibility(View.GONE);
holder.tv_status.setVisibility(View.GONE);
holder.tv_unchange_therapist.setVisibility(View.VISIBLE);
holder.tv_unchange_status.setVisibility(View.VISIBLE);
holder.iv_action.setVisibility(View.VISIBLE);
holder.iv_edit.setVisibility(View.GONE);
for(int y=0;y<TherapistList.size();y++){
if(ap.getCLDTherapist().equals(TherapistList.get(y).getID())){
holder.tv_unchange_therapist.setText(TherapistList.get(y).getName());
break;
}else{
holder.tv_unchange_therapist.setText("Not Available");
}
}
if (ap.getCLDStatus().equals("2")) {
holder.tv_unchange_status.setText(Status1[1]);
} else if (ap.getCLDStatus().equals("3")) {
holder.tv_unchange_status.setText(Status2[0]);
} else if (ap.getCLDStatus().equals("4")) {
holder.tv_unchange_status.setText(Status2[1]);
} else if (ap.getCLDStatus().equals("5")) {
holder.tv_unchange_status.setText(Status2[2]);
} else if (ap.getCLDStatus().equals("6")) {
holder.tv_unchange_status.setText(Status1[2]);
}
}
holder.tv_therapist.setTag(ap.getCLDClientID());
holder.tv_status.setTag(ap.getCLDClientID());
holder.iv_edit.setTag(ap.getCLDClientID());
holder.iv_action.setTag(ap.getCLDClientID());
holder.iv_action.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try {
ImageView b = (ImageView) v;
String id = b.getTag().toString();
Log.d("ID is", id);
Intent CDV=new Intent(context, TabSample.class);
CDV.putExtra("ID", id);
//CDV.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
//context.startActivity(CDV);
((Activity) context).startActivityForResult(CDV,5);
try {
Log.d("POSITION", "" + position + " "
+ data.get(position).getCLDClientID());
} catch (ArrayIndexOutOfBoundsException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
holder.tv_status
.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
int id=arg2+1;
try {
try {
CS=new ChangeStatus();
CS.setClientID(data.get(position).getCLDClientID());
CS.setSalonID("1");
if(id==3){
CS.setStatus("6");
}else{
CS.setStatus(String.valueOf(id));
}
new LoadChangeStatus().execute();
} catch (ArrayIndexOutOfBoundsException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
holder.tv_therapist
.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
try {
try {
Spinner sp = (Spinner) arg0;
String str = sp.getTag().toString();
TextView th_id=(TextView)arg1.findViewById(R.id.spnradptno);
CT=new ChangeTherapist();
CT.setClientID(str);
CT.setSalonID("1");
CT.setTherapist(th_id.getText().toString());
new LoadChangeTherapist().execute();
Log.d("SPR TXT", th_id.getText().toString()+" "+position+" "+str);
} catch (ArrayIndexOutOfBoundsException e) {
// TODO Auto-generated catch block
Log.d("Error in spinner",e.toString());
}
} catch (Exception e) {
// TODO Auto-generated catch block
Log.d("Error2 in spinner",e.toString());
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
Log.d("Nothing","Selected");
}
});
holder.iv_edit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try {
ImageView b = (ImageView) v;
String id = b.getTag().toString();
Log.d("ID is", id);
Intent CDV=new Intent(context, TabSample.class);
CDV.putExtra("ID", id);
((Activity) context).startActivityForResult(CDV,5);
try {
Log.d("POSITION", "" + position + " "
+ data.get(position).getCLDClientID());
} catch (ArrayIndexOutOfBoundsException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
return row;
}
static class ClientListHolder {
TextView tv_no;
TextView tv_name;
Spinner tv_therapist;
Spinner tv_status;
ImageView iv_action;
ImageView iv_edit;
TextView tv_unchange_therapist;
TextView tv_unchange_status;
}
public class LoadChangeStatus extends AsyncTask<Integer, Integer, Integer> {
// Before running code in the separate thread
int LoadChangeStatus= 0;
@Override
protected void onPreExecute() {
// Create a new progress dialog
progressDialog = new ProgressDialog(context);
// Set the progress dialog to display a horizontal progress bar
// progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
// Set the dialog title to 'Loading...'
progressDialog.setTitle("Loading...");
// Set the dialog message to 'Loading application View, please
// wait...'
progressDialog.setMessage("Loading, please wait...");
// This dialog can't be canceled by pressing the back key
progressDialog.setCancelable(false);
// This dialog isn't indeterminate
progressDialog.setIndeterminate(false);
// The maximum number of items is 100
// Set the current progress to zero
// Display the progress dialog
progressDialog.show();
}
// The code to be executed in a background thread.
@Override
protected Integer doInBackground(Integer... params) {
try {
// temp.clear();
networkavailable=new Network().isNetworkAvailable(context);
if(networkavailable){
temp = CS.Change_Status(CS, context);
LoadChangeStatus=1;
}else{
LoadChangeStatus=2;
}
} catch (Exception e) {
// TODO Auto-generated catch block
Log.d("ERROR", "LoadChangeStatus backgroung");
}
return null;
}
// Update the progress
@Override
protected void onProgressUpdate(Integer... values) {
// set the current progress of the progress dialog
}
// after executing the code in the thread
@Override
protected void onPostExecute(Integer result) {
// close the progress dialog
progressDialog.dismiss();
if(LoadChangeStatus==1){
try {
data.clear();
data.addAll(temp);
notifyDataSetChanged();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else if(LoadChangeStatus==2){
Toast.makeText(context, "Network Not Available", Toast.LENGTH_LONG).show();
}else{
Toast.makeText(context, "Changing Status Failed. Please Try Again", Toast.LENGTH_LONG).show();
}
}
}
public class LoadChangeTherapist extends
AsyncTask<Integer, Integer, Integer> {
// Before running code in the separate thread
int LoadChangeTherapist = 0;
@Override
protected void onPreExecute() {
// Create a new progress dialog
progressDialog = new ProgressDialog(context);
// Set the progress dialog to display a horizontal progress bar
// progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
// Set the dialog title to 'Loading...'
progressDialog.setTitle("Loading...");
// Set the dialog message to 'Loading application View, please
// wait...'
progressDialog.setMessage("Loading, please wait...");
// This dialog can't be canceled by pressing the back key
progressDialog.setCancelable(false);
// This dialog isn't indeterminate
progressDialog.setIndeterminate(false);
// The maximum number of items is 100
// Set the current progress to zero
// Display the progress dialog
progressDialog.show();
}
// The code to be executed in a background thread.
@Override
protected Integer doInBackground(Integer... params) {
try {
// temp.clear();
networkavailable=new Network().isNetworkAvailable(context);
if(networkavailable){
temp = CT.Get_Change_Therapist(CT, context);
LoadChangeTherapist=1;
}else{
LoadChangeTherapist=2;
}
} catch (Exception e) {
// TODO Auto-generated catch block
Log.d("ERROR", "LoadChangeStatus backgroung");
}
return null;
}
// Update the progress
@Override
protected void onProgressUpdate(Integer... values) {
// set the current progress of the progress dialog
}
// after executing the code in the thread
@Override
protected void onPostExecute(Integer result) {
// close the progress dialog
progressDialog.dismiss();
if (LoadChangeTherapist == 1) {
try {
data.clear();
data.addAll(temp);
notifyDataSetChanged();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else if (LoadChangeTherapist == 2) {
Toast.makeText(context, "Network Not Available", Toast.LENGTH_LONG).show();
}else{
Toast.makeText(context, "Removing Client Failed. Please Try Again", Toast.LENGTH_LONG).show();
}
}
}
public class LoadRemoveClient extends AsyncTask<Integer, Integer, Integer> {
// Before running code in the separate thread
int LoadRemoveClient = 0;
@Override
protected void onPreExecute() {
// Create a new progress dialog
progressDialog = new ProgressDialog(context);
// Set the progress dialog to display a horizontal progress bar
// progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
// Set the dialog title to 'Loading...'
progressDialog.setTitle("Loading...");
// Set the dialog message to 'Loading application View, please
// wait...'
progressDialog.setMessage("Loading, please wait...");
// This dialog can't be canceled by pressing the back key
progressDialog.setCancelable(false);
// This dialog isn't indeterminate
progressDialog.setIndeterminate(false);
// The maximum number of items is 100
// Set the current progress to zero
// Display the progress dialog
progressDialog.show();
}
// The code to be executed in a background thread.
@Override
protected Integer doInBackground(Integer... params) {
Log.d("ERROR", "LoadRemoveClient backgroung");
try {
networkavailable=new Network().isNetworkAvailable(context);
if(networkavailable){
temp = RC.Get_Client_List_Detail(RC, context);
LoadRemoveClient=1;
}else{
LoadRemoveClient=2;
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
// Update the progress
@Override
protected void onProgressUpdate(Integer... values) {
// set the current progress of the progress dialog
}
// after executing the code in the thread
@Override
protected void onPostExecute(Integer result) {
// close the progress dialog
progressDialog.dismiss();
if (LoadRemoveClient == 1) {
try {
data.clear();
data.addAll(temp);
notifyDataSetChanged();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else if (LoadRemoveClient == 2) {
Toast.makeText(context, "Network Not Available", Toast.LENGTH_LONG).show();
}else{
Toast.makeText(context, "Removing Client Failed. Please Try Again", Toast.LENGTH_LONG).show();
}
}
}
}
如何避免不必要地调用view.OnItemSelectedListener of spinner视图初始化自定义适配器列表视图
答案 0 :(得分：1)
您无法在初始化时停止或避免调用onItemSelectedListener。但你可以通过声明一个整数并将值设置为0来防止这种情况，并且在调用getview方法时，检查带有数据大小的整数（你的数组列表大小）。如果整数小于大小而不是增加整数值，否则做你的背景工作。但这不是正确的方法，因为当您滚动列表视图时，同样的问题再次出现。如果您有固定的数组列表大小，请执行此操作。最好使用AutoCompleteTextView而不是SpinnerView。
答案 1 :(得分：0)
调用它来选择第一个项目（默认值类型）。
尝试一件事，如果对于ex：
的行！= null，则不要将适配器设置为微调器 if (row == null) {
holder = new ClientListHolder();
row = inflater.inflate(layoutResourceId, parent, false);
holder.tv_no = (TextView) row
.findViewById(R.id.tv_clientwaitlayout_no);
holder.tv_name = (TextView) row
.findViewById(R.id.tv_clientwaitlayout_name);
holder.tv_status = (Spinner) row
.findViewById(R.id.tv_clientwaitlayout_status);
holder.tv_therapist = (Spinner) row
.findViewById(R.id.tv_clientwaitlayout_therapist);
holder.iv_edit=(ImageView) row.findViewById(R.id.btn_clientwaitlayout_edit);
holder.iv_action = (ImageView) row
.findViewById(R.id.btn_clientwaitlayout_action);
holder.tv_unchange_therapist=(TextView) row.findViewById(R.id.tv_clientwaitlayout_unchange_name);
holder.tv_unchange_status=(TextView) row.findViewById(R.id.tv_clientwaitlayout_unchange_status);
holder.tv_therapist.setAdapter(TherapistAdapter);
holder.tv_status.setAdapter(StatusAdapter);
row.setTag(holder);
} else {
holder = (ClientListHolder) row.getTag();
}