我有一个问题。我有自定义listView，它有很多子，并且还有另一个自定义列表视图。在listView中显示的所有数据都来自数据库。我的问题是，当我滚动我的主ListView它卡住了一段时间然后滚动。我在这里上传了我的所有代码。
我的主要活动课程：
public class TransactionListMonthWise<DisplayYear> extends TopParentActivity {
ListView statement;
ArrayList<DisplayMonth> status;
ArrayList<DisplayYear> yearstatus;
addBankTransactionList mAdapter;
TextView tvBankName, tvBalance, tvBankAccNoForHistory;
String monthname;
String monthName;
int yearName;
String bankname, amount, accno;
Date theDate;
String currencySymbl, cur_sym;
EPreferences epref;
String TotalBalance, BankBalance, finalTotalIncome;
Toolbar toolbarTransactionListMonthWise;
boolean loadingMore = false;
int itemsPerPage = 2;
DisplayMonth monthNameInAdapter;
int month;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_transaction_monthwise);
bindview();
init();
addListener();
}
private void init() {
epref = EPreferences.getInstance(TransactionListMonthWise.this);
getPrefData();
Intent intent = getIntent();
bankname = intent.getStringExtra("NAME");
tvBankName.setText(bankname);
TotalBalance = String.valueOf(intent.getDoubleExtra("BALANCE", 0.0));
BankBalance = new BigDecimal(TotalBalance).toPlainString();
DecimalFormat decimalFormatIncome = new DecimalFormat("0.#");
finalTotalIncome = decimalFormatIncome.format(Double
.valueOf(TotalBalance));
tvBalance.setText(currencySymbl
+ " "
+ String.format("%,.00f",
(double) Double.parseDouble(finalTotalIncome)));
// tvBalance.setText(amount + " " + currencySymbl);
Log.i("symbol", currencySymbl);
accno = intent.getStringExtra("ACCNO");
status = new ArrayList<DisplayMonth>();
yearstatus = new ArrayList<DisplayYear>();
tvBankAccNoForHistory.setText("xxxxx"
+ intent.getStringExtra("ACC_NUMBER"));
Utils.BANK_ACC_NUM = intent.getStringExtra("ACC_NUMBER");
Utils.BANK_NAME_DISP = bankname;
setSupportActionBar(toolbarTransactionListMonthWise);
this.toolbarTransactionListMonthWise
.setNavigationIcon(R.drawable.ic_arrow_back_white100);
getSupportActionBar().setTitle(bankname + " History");
}
private void bindview() {
toolbarTransactionListMonthWise = (Toolbar) findViewById(R.id.toolbarTransactionListMonthWise);
statement = (ListView) findViewById(R.id.list_transaction_view);
tvBankName = (TextView) findViewById(R.id.tvBankNameForHistory);
tvBalance = (TextView) findViewById(R.id.tvNetBalanceForHistory);
tvBankAccNoForHistory = (TextView) findViewById(R.id.tvBankAccNoForHistory);
}
private void addListener() {
statement.setOnScrollListener(new AbsListView.OnScrollListener() {
int mLastFirstVisibleItem;
boolean mIsScrollingUp;
@Override
public void onScrollStateChanged(AbsListView view, int scrollstate) {
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
int lastInScreen = firstVisibleItem + visibleItemCount;
if ((lastInScreen == totalItemCount)) {
new MailSender().execute();
}
}
});
}
@Override
public void onBackPressed() {
super.onBackPressed();
Intent intent = new Intent(TransactionListMonthWise.this,
BankList.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
}
private String getMonth(int month1) {
switch (month1) {
case 1:
monthname = "Jan";
break;
case 2:
monthname = "Feb";
break;
case 3:
monthname = "Mar";
break;
case 4:
monthname = "Apr";
break;
case 5:
monthname = "May";
break;
case 6:
monthname = "Jun";
break;
case 7:
monthname = "Jul";
break;
case 8:
monthname = "Aug";
break;
case 9:
monthname = "Sep";
break;
case 10:
monthname = "Oct";
break;
case 11:
monthname = "Nov";
break;
case 12:
monthname = "Dec";
break;
default:
break;
}
return monthname;
}
private int getYear(int years) {
switch (years) {
case 1:
years = 2011;
break;
case 2:
years = 2012;
break;
case 3:
years = 2013;
break;
case 4:
years = 2014;
break;
case 5:
years = 2015;
break;
case 6:
years = 2016;
break;
default:
break;
}
return years;
}
private void getPrefData() {
cur_sym = epref.getPreferencesStr(epref.KEY_CURRENCY, "India");
Log.d("vaaaaa", " == " + cur_sym);
if (cur_sym.equalsIgnoreCase("India")) {
currencySymbl = getResources().getString(R.string.India);
} else if (cur_sym.equalsIgnoreCase("US")) {
currencySymbl = getResources().getString(R.string.United_States);
} else if (cur_sym.equalsIgnoreCase("Japan")) {
currencySymbl = getResources().getString(R.string.Japan);
} else if (cur_sym.equalsIgnoreCase("England")) {
currencySymbl = getResources().getString(R.string.England_pound);
} else if (cur_sym.equalsIgnoreCase("Costa Rica")) {
currencySymbl = getResources().getString(R.string.Costa);
} else if (cur_sym.equalsIgnoreCase("UK")) {
currencySymbl = getResources().getString(R.string.United);
} else if (cur_sym.equalsIgnoreCase("Phillipines")) {
currencySymbl = getResources().getString(R.string.Philippines);
} else if (cur_sym.equalsIgnoreCase("Mangolia")) {
currencySymbl = getResources().getString(R.string.Macedonia);
} else if (cur_sym.equalsIgnoreCase("Australia")) {
currencySymbl = getResources().getString(R.string.Australia);
} else if (cur_sym.equalsIgnoreCase("Europ")) {
currencySymbl = getResources().getString(R.string.Euro);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
onBackPressed();
}
return super.onOptionsItemSelected(item);
}
public class MailSender extends AsyncTask<Void, Integer, Integer> {
Dialog progress;
@SuppressLint("ResourceAsColor")
@Override
protected void onPreExecute() {
super.onPreExecute();
progress = new Dialog(TransactionListMonthWise.this,
R.style.AppDialogExit);
progress.requestWindowFeature(Window.FEATURE_NO_TITLE);
progress.show();
progress.setContentView(R.layout.custom_loading_dialog);
TextView tv = (TextView) progress.findViewById(R.id.tv);
tv.setText("Mail is sending...");
progress.setCanceledOnTouchOutside(false);
progress.setCancelable(false);
}
@Override
protected Integer doInBackground(Void... params) {
final RelativeLayout footerView = (RelativeLayout) findViewById(R.id.loadItemsLayout_recyclerView);
Calendar cal = Calendar.getInstance();
month = cal.get(Calendar.MONTH) + 1;
// int year = cal.get(Calendar.YEAR) - 10;
int currentYear = cal.get(Calendar.YEAR);
Log.d("viewMonths", "month is" + month + " " + currentYear);
for (int j = month; j > 0; j--) {
monthNameInAdapter = new DisplayMonth();
monthName = getMonth(j);
monthNameInAdapter.setMonth(monthName);
status.add(monthNameInAdapter);
}
mAdapter = new addBankTransactionList(getApplicationContext(),
month, status, bankname, accno, currentYear, amount);
return 0;
}
@Override
protected void onPostExecute(Integer result) {
super.onPostExecute(result);
// progress.dismiss();
if (progress != null) {
progress.dismiss();
progress = null;
}
try {
statement.setAdapter(mAdapter);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
主Xml：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/white"
android:fitsSystemWindows="true"
android:gravity="center"
android:orientation="vertical" >
<android.support.v7.widget.Toolbar
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/toolbarTransactionListMonthWise"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="?colorPrimary"
android:minHeight="?actionBarSize"
android:paddingRight="10dp"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" >
</android.support.v7.widget.Toolbar>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
card_view:cardCornerRadius="5dp"
card_view:cardUseCompatPadding="true" >
<RelativeLayout
android:id="@+id/rlBankNameAndBalance"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="@color/green_100"
android:clickable="true"
android:gravity="right"
android:orientation="vertical"
android:paddingLeft="@dimen/main_list_data_disp_padding_left"
android:paddingRight="@dimen/main_list_data_disp_padding_right"
android:paddingTop="@dimen/main_list_data_disp_padding_top" >
<TextView
android:id="@+id/tvBankNameForHistory"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/iconId"
android:text="@string/BankBalance"
android:textColor="@color/gray_900"
android:textSize="@dimen/main_list_data_disp_text_size" />
<TextView
android:id="@+id/tvBankAccNoForHistory"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/tvBankNameForHistory"
android:text="@string/BankBalance"
android:textColor="@color/gray_500"
android:textSize="14sp" />
<TextView
android:id="@+id/tvNetBalanceForHistory"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:textColor="@color/gray_900"
android:textSize="@dimen/main_list_data_disp_text_size" />
</RelativeLayout>
</android.support.v7.widget.CardView>
<ListView
android:id="@+id/list_transaction_view"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_margin="2dp"
android:scrollbars="none" />
<include
android:id="@+id/loadItemsLayout_recyclerView"
android:layout_width="fill_parent"
android:layout_height="110dp"
android:layout_alignParentBottom="true"
layout="@layout/progress_layout"
android:visibility="gone" />
主适配器类：
public class addBankTransactionList extends BaseAdapter {
// Activity activityCategory;
static ArrayList<DisplayMonth> monthName;
// ArrayList<DisplayYear> yearName;
ArrayList<Expense> expense;
ArrayList<Income> incomes, Arr;
@SuppressWarnings("rawtypes")
ArrayList<String> arrDateDebit, arrDateCredit;
ArrayList<Double> arrAmountDebit, arrAmountCredit;
Context contextAddBank;
int CurrentMonth;
String bankNameForMatch, months, allyear, SystemMonthInString, amount,
bankAccNoForMatch;
int monthname;
String currencySymbl, cur_sym;
String date = "", thirdYear;
String monthNameInString;
EPreferences epref;
ArrayList<Income> tempIncomeses = new ArrayList<Income>();
String dateIncome, dateExpense;
Double expenseAmount, incomeAmount;
DataBaseAdapter adapter;
// private String ;
int monthNameInStringExpense, monthNameInStringIncome;
int yr, year;
int monthsInIntIncome, dateInIntIncome, yearInIntIncome,
monthsInIntExpense;
String convertDate;
// private ArrayList<Income> tempincomes = new ArrayList<Income>();
List list;
Date date1;
String emptyExpenseAmount, emptyIncomeAmount;
FilterData data;
private String bankname, accno;
public static Boolean isScrolling = true;
public static class ViewHolder {
public TextView tvDate, tvIncomeMoney, tvExpenseMoney,
tvRecordnotFound, tvIncomeSymblIncomeDisp, tvTransactionType,
tvTransactionDate, tvTransactionAmount, tvMoneyCurrencyExpense,
tvMoneyCurrencyIncome;
ListView rvList;
}
public addBankTransactionList(Context mcontext, int month,
ArrayList<DisplayMonth> status, String bankname, String bankAccNo,
int year, String amt) {
super();
this.contextAddBank = mcontext;
monthName = status;
CurrentMonth = month;
bankNameForMatch = bankname;
bankAccNoForMatch = bankAccNo;
yr = year;
amount = amt;
}
public boolean setListViewHeightBasedOnItems(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter != null) {
int numberOfItems = listAdapter.getCount();
Log.i("TotalRecord", numberOfItems + "");
int totalItemsHeight = 0;
for (int itemPos = 0; itemPos < numberOfItems; itemPos++) {
View item = listAdapter.getView(itemPos, null, listView);
item.measure(0, 0);
totalItemsHeight += item.getMeasuredHeight();
}
int totalDividersHeight = listView.getDividerHeight()
* (numberOfItems - 1);
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalItemsHeight + totalDividersHeight;
listView.setLayoutParams(params);
listView.requestLayout();
listView.setClickable(false);
listView.setEnabled(false);
return true;
} else {
return false;
}
}
private void getPrefData() {
cur_sym = epref.getPreferencesStr(epref.KEY_CURRENCY, "India");
Log.d("vaaaaa", " == " + cur_sym);
if (cur_sym.equalsIgnoreCase("India")) {
currencySymbl = contextAddBank.getResources().getString(
R.string.India);
} else if (cur_sym.equalsIgnoreCase("US")) {
currencySymbl = contextAddBank.getResources().getString(
R.string.United_States);
} else if (cur_sym.equalsIgnoreCase("Japan")) {
currencySymbl = contextAddBank.getResources().getString(
R.string.Japan);
} else if (cur_sym.equalsIgnoreCase("England")) {
currencySymbl = contextAddBank.getResources().getString(
R.string.England_pound);
} else if (cur_sym.equalsIgnoreCase("Costa Rica")) {
currencySymbl = contextAddBank.getResources().getString(
R.string.Costa);
} else if (cur_sym.equalsIgnoreCase("UK")) {
currencySymbl = contextAddBank.getResources().getString(
R.string.United);
} else if (cur_sym.equalsIgnoreCase("Phillipines")) {
currencySymbl = contextAddBank.getResources().getString(
R.string.Philippines);
} else if (cur_sym.equalsIgnoreCase("Mangolia")) {
currencySymbl = contextAddBank.getResources().getString(
R.string.Macedonia);
} else if (cur_sym.equalsIgnoreCase("Australia")) {
currencySymbl = contextAddBank.getResources().getString(
R.string.Australia);
} else if (cur_sym.equalsIgnoreCase("Europ")) {
currencySymbl = contextAddBank.getResources().getString(
R.string.Euro);
}
}
private int getMonthName(String month1) {
switch (month1.toLowerCase().toString()) {
case "Jan":
monthname = 1;
break;
case "Feb":
monthname = 2;
break;
case "Mar":
monthname = 3;
break;
case "Apr":
monthname = 4;
break;
case "May":
monthname = 5;
break;
case "Jun":
monthname = 6;
break;
case "Jul":
monthname = 7;
break;
case "Aug":
monthname = 8;
break;
case "Sep":
monthname = 9;
break;
case "Oct":
monthname = 10;
break;
case "Nov":
monthname = 11;
break;
case "Dec":
monthname = 12;
break;
default:
break;
}
return monthname;
}
@Override
public int getCount() {
return monthName.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int arg0) {
return 0;
}
@Override
public View getView(int position, View conView, ViewGroup parent) {
ViewHolder vh;
if (conView == null) {
conView = LayoutInflater.from(contextAddBank).inflate(
R.layout.transaction_list, null, false);
vh = new ViewHolder();
vh.tvDate = (TextView) conView.findViewById(R.id.tvDate);
vh.rvList = (ListView) conView
.findViewById(R.id.lvDisplayExpenseList);
vh.tvIncomeMoney = (TextView) conView
.findViewById(R.id.tvIncomeMoney);
vh.tvExpenseMoney = (TextView) conView
.findViewById(R.id.tvExpenseMoney);
vh.tvRecordnotFound = (TextView) conView
.findViewById(R.id.tvrecordnotFound);
vh.tvIncomeSymblIncomeDisp = (TextView) conView
.findViewById(R.id.tvIncomeSymblIncomeDisp);
vh.tvMoneyCurrencyExpense = (TextView) conView
.findViewById(R.id.tvMoneyCurrencyExpense);
vh.tvMoneyCurrencyIncome = (TextView) conView
.findViewById(R.id.tvMoneyCurrencyIncome);
adapter = new DataBaseAdapter(contextAddBank);
arrDateDebit = new ArrayList<String>();
arrAmountDebit = new ArrayList<Double>();
arrDateCredit = new ArrayList<String>();
arrAmountCredit = new ArrayList<Double>();
epref = EPreferences.getInstance(contextAddBank);
incomes = new ArrayList<Income>();
expense = new ArrayList<Expense>();
getPrefData();
vh.tvMoneyCurrencyExpense.setText(currencySymbl);
vh.tvMoneyCurrencyIncome.setText(currencySymbl);
adapter.open();
adapter.close();
conView.setTag(vh);
} else {
vh = (ViewHolder) conView.getTag();
}
expense.clear();
incomes.clear();
arrDateCredit.clear();
arrAmountCredit.clear();
arrDateDebit.clear();
arrAmountDebit.clear();
adapter.open();
// viewHolder.rvList.setAdapter(Adapter);
incomes = adapter.read_income();
expense = adapter.read_expense();
double totalExpense = 0.0;
double totalIncome = 0.0;
DisplayMonth month = monthName.get(position);
vh.tvDate.setText(month.getMonth() + " " + yr);
months = month.getMonth();
Log.d("tagNameAdapter",
"name is " + bankNameForMatch + ":::" + month.getMonth());
Log.d("expencesize", "size is " + expense.size());
// expense = adapter.read_expense_with_bankName(bankNameForMatch,
// bankAccNoForMatch);
if (expense.size() > 0) {
for (int l = 0; l < expense.size(); l++) {
Log.d("tagbankfil",
"" + bankNameForMatch + "=="
+ expense.get(l).getBankname() + " AND "
+ expense.get(l).getAccno() + "=="
+ bankAccNoForMatch);
if (bankNameForMatch.equals(expense.get(l).getBankname())
&& bankAccNoForMatch.substring(
bankAccNoForMatch.length() - 3)
.equalsIgnoreCase(
expense.get(l)
.getAccno()
.substring(
expense.get(l)
.getAccno()
.length() - 3))) {
dateExpense = expense.get(l).getDate();
expenseAmount = expense.get(l).getAmount();
Log.i("ExpenseAmount", expenseAmount + ":::::"
+ dateExpense);
Calendar calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
StringTokenizer tokensIncome = new StringTokenizer(
dateExpense, "-");
String firstDate = tokensIncome.nextToken();
String secondMonth = tokensIncome.nextToken();
thirdYear = tokensIncome.nextToken();
monthsInIntExpense = Integer.parseInt(secondMonth);
int totalYear = Integer.parseInt(thirdYear);
Log.i("MonthNameExpense", totalYear + "");
Log.i("MonthSplitExpense", firstDate + " " + secondMonth
+ " " + thirdYear);
// for (int jmon = 0; jmon < expense.size(); jmon++) {
Log.i("loopTimes", "Check");
SimpleDateFormat sdfSource = new SimpleDateFormat(
"dd-MM-yyyy");
Date dateVal = null;
Log.i("axisbankdateval", dateVal + "");
try {
dateVal = sdfSource.parse(dateExpense);
} catch (ParseException e) {
e.printStackTrace();
}
SimpleDateFormat sdfDestination = new SimpleDateFormat(
"dd-MMM-yyyy");
convertDate = sdfDestination.format(dateVal);
String[] parts = convertDate.split("-");
String transactionMonth = parts[1];
String transactionYear = parts[2];
Log.i("allYear", year + " ");
monthNameInStringExpense = getMonthName(transactionMonth);
Log.i("finddate", convertDate + ":::" + transactionMonth
+ ":::" + monthNameInStringExpense + "::"
+ transactionYear);
Log.d("tagmonth", "" + month.getMonth() + " ::: "
+ transactionMonth + " ---- " + totalYear + "::::"
+ year);
if (month.getMonth().contains(transactionMonth)
&& totalYear == year) {
emptyExpenseAmount = vh.tvExpenseMoney.getText()
.toString();
Log.i("dateAmount", " " + expense.get(l).getAmount()
+ " " + expense.get(l).getDate());
arrDateDebit.add(expense.get(l).getDate());
arrAmountDebit.add(expense.get(l).getAmount());
totalExpense += expense.get(l).getAmount();
DecimalFormat decimalFormatExpense = new DecimalFormat(
"0.#");
String finalTotalExpense = decimalFormatExpense
.format(Double.valueOf(totalExpense));
String valTvExpenseAmt = new BigDecimal(
finalTotalExpense).toPlainString();
vh.tvExpenseMoney.setText(String.format("%,.00f",
(double) Double.parseDouble(valTvExpenseAmt))
+ " " + currencySymbl);
if (totalExpense == 0.0) {
vh.tvExpenseMoney.setText("0.0");
vh.tvMoneyCurrencyExpense.setText(currencySymbl);
} else {
if (vh.tvRecordnotFound.getVisibility() == View.VISIBLE) {
vh.tvRecordnotFound.setVisibility(View.GONE);
vh.tvMoneyCurrencyExpense
.setVisibility(View.INVISIBLE);
vh.tvExpenseMoney.setText(" " + totalExpense
+ " " + currencySymbl);
vh.tvMoneyCurrencyExpense
.setText(currencySymbl);
}
}
}
}
}
}
if (incomes.size() > 0) {
for (int j = 0; j < incomes.size(); j++) {
Log.d("tagbankfil",
"" + bankNameForMatch + "=="
+ incomes.get(j).getIncome_bankname() + " AND "
+ incomes.get(j).getIncome_accno() + "=="
+ bankAccNoForMatch);
if (bankNameForMatch
.equals(incomes.get(j).getIncome_bankname())
&& bankAccNoForMatch
.substring(bankAccNoForMatch.length() - 3)
.equalsIgnoreCase(
incomes.get(j)
.getIncome_accno()
.substring(
incomes.get(j)
.getIncome_accno()
.length() - 3))) {
dateIncome = incomes.get(j).getIncome_date();
incomeAmount = incomes.get(j).getIncome_amount();
Log.i("IncomeAmount", incomeAmount + ":::::" + dateIncome);
Calendar calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
StringTokenizer tokensIncome = new StringTokenizer(
dateIncome, "-");
String firstDate = tokensIncome.nextToken();
String secondMonth = tokensIncome.nextToken();
thirdYear = tokensIncome.nextToken();
monthsInIntIncome = Integer.parseInt(thirdYear);
int totalYear = Integer.parseInt(thirdYear);
Log.i("MonthNameIncome", monthsInIntIncome + " " + ""
+ monthNameInStringIncome + " " + dateIncome + " "
+ incomes.size() + "" + totalYear);
Log.i("MonthSplitIncome", firstDate + " " + secondMonth
+ " " + thirdYear);
Log.i("loopTimes", "Check");
SimpleDateFormat sdfSource = new SimpleDateFormat(
"dd-MM-yyyy");
Date dateVal = null;
Log.i("axisbankdateval", dateVal + "");
try {
dateVal = sdfSource.parse(dateIncome);
} catch (ParseException e) {
e.printStackTrace();
}
SimpleDateFormat sdfDestination = new SimpleDateFormat(
"dd-MMM-yyyy");
convertDate = sdfDestination.format(dateVal);
String[] parts = convertDate.split("-");
String transactionMonth = parts[1];
String transactionYear = parts[2];
monthNameInStringIncome = getMonthName(transactionMonth);
Log.i("finddate", convertDate + "::" + monthname + "::"
+ monthNameInStringIncome);
if (month.getMonth().contains(transactionMonth)
&& totalYear == year) {
emptyIncomeAmount = vh.tvIncomeMoney.getText()
.toString();
arrDateCredit.add(incomes.get(j).getIncome_date());
arrAmountCredit.add(incomes.get(j).getIncome_amount());
totalIncome += incomes.get(j).getIncome_amount();
DecimalFormat decimalFormatIncome = new DecimalFormat(
"0.#");
String finalTotalIncome = decimalFormatIncome
.format(Double.valueOf(totalIncome));
String valTvIncomeAmt = new BigDecimal(finalTotalIncome)
.toPlainString();
vh.tvIncomeMoney.setText(String.format("%,.00f",
(double) Double.parseDouble(valTvIncomeAmt))
+ " ");
vh.tvMoneyCurrencyIncome.setText(currencySymbl);
if (totalIncome == 0.0) {
vh.tvIncomeMoney.setText("0.0");
vh.tvMoneyCurrencyIncome.setText(currencySymbl);
} else {
if (vh.tvRecordnotFound.getVisibility() == View.VISIBLE) {
vh.tvRecordnotFound.setVisibility(View.GONE);
vh.tvIncomeMoney.setText(" " + totalIncome
+ " " + currencySymbl);
}
}
}
}
}
Log.i("currentYear", year + "" + thirdYear);
}
CategoryList categoryListAdapter = new CategoryList(contextAddBank,
arrDateDebit, arrAmountDebit, arrDateCredit, arrAmountCredit);
vh.rvList.setAdapter(categoryListAdapter);
setListViewHeightBasedOnItems(vh.rvList);
vh.rvList.setScrollContainer(true);
categoryListAdapter.notifyDataSetChanged();
return conView;
}
}
答案 0 :(得分：0)
当您向下滚动时，您的应用程序会停滞不前，因为滚动时每次移动都会执行所有处理。每一次将其带回屏幕时，每一行都会运行getView方法的语句，手机没有足够的处理能力来处理所有这些。您需要将所有这些分成不同的类，然后将其加载到较小的数据集中的适配器中，以便它所需要做的就是显示它。基本上，你正在UI（主）线程中进行处理，这很糟糕。
鉴于你们如何嵌套listViews，在宏观方案中更改为expandedListView也会更容易，可以更好地完成工作。这是一个教程：https://www.youtube.com/watch?v=BkazaAeeW1Q