可扩展列表视图中的多个倒数计时器 Android 不工作
Multiple Countdown Timer in Expandable Listview Android not working
从上周开始，我尝试在可扩展列表中实现多个倒数计时器 view.I 想减少时间直到 00:00:00，据此我需要更新可扩展列表视图的父元素中的文本.
我的问题是：
1) 滚动可扩展列表视图计时器重新启动
2) 展开和折叠计时器重新启动
3）在子按钮上发生事件时，我需要更新父视图上特定位置的文本
我试图实现的另一件事是从子视图中单击一个按钮，我需要更新父视图中的文本，但我被困在那里。
这是我的适配器，包含父项和子项。
public class Sent_ListAdapter extends BaseExpandableListAdapter {
private Context _context;
**private List<SentModel> _listDataHeader;**
// child data in format of header title, child title
**private HashMap<SentModel, List<SentModel>> _listDataChild;**
private TextView txt_summary;
private TextView datetime_element;
private LinearLayout ll_arrowtorecord;
**private String[] ti;**
**private CountDownTimer cdt_sent;**
**private HashMap<TextView, CountDownTimer> counters;**
**private TextView deadline;**
public Sent_ListAdapter(Context context, List<SentModel> listDataHeader, HashMap<SentModel, List<SentModel>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
ll_end = new FrameLayout[_listDataHeader.size()];
ll_closeaceess = new FrameLayout[_listDataHeader.size()];
ll_whoaccpted = new LinearLayout[_listDataHeader.size()];
**this.counters = new HashMap<TextView, CountDownTimer>();**
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition)).size();
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition)).get(childPosition);
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
final SentModel headerTitle = (SentModel) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.element_sentlist, null);
}
ll_arrowtorecord = (LinearLayout) convertView.findViewById(R.id.ll_arrowtorecord);
ll_arrowtorecord.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (headerTitle.getFile().trim().contains(".mp4")) {
Log.v("", TAG + "==video==" + headerTitle.getFile());
Intent intent = new Intent(android.content.Intent.ACTION_VIEW);
Uri data = Uri.parse(headerTitle.getFile());
intent.setDataAndType(data, "video/mp4");
startActivity(intent);
} else if (headerTitle.getFile().trim().contains(".jpg")) {
Log.v("", TAG + "==image==" + headerTitle.getFile());
Intent gotorecoedactivity = new Intent(context, RecordedAsset.class);
gotorecoedactivity.putExtra("image", headerTitle.getFile());
startActivity(gotorecoedactivity);
overridePendingTransition(R.anim.right_slide_in, R.anim.left_side_out);
finish();
} else {
Toast.makeText(context, "No recorded asset is there.", Toast.LENGTH_SHORT).show();
}
}
});
txt_summary = (TextView) convertView.findViewById(R.id.txt_summary);
if (headerTitle.get_desc().equalsIgnoreCase("") || headerTitle.get_desc() == null) {
txt_summary.setText(" Description");
} else {
txt_summary.setText(headerTitle.get_desc());
}
datetime_element = (TextView) convertView.findViewById(R.id.datetime_element);
final TextView tv = datetime_element;
deadline = (TextView) convertView.findViewById(R.id.deadline);
**if (headerTitle.getRemaining_completion_time().equalsIgnoreCase("") || headerTitle.getRemaining_completion_time() == null) {
datetime_element.setText("");
}
else if (headerTitle.getRemaining_completion_time().equalsIgnoreCase("00:00:00"))
{
tv.setText("Completion time over");
deadline.setVisibility(View.GONE);
}
else
{
ti = headerTitle.getRemaining_completion_time().split(":");
int hrs = Integer.parseInt(ti[0]);
cdt_sent = counters.get(datetime_element);
int days = Integer.parseInt(headerTitle.getRemaining_days());
// int hours1 = datetime_plus(days, Integer.parseInt(ti[0]));
int min = Integer.parseInt(ti[1]);
int sec = Integer.parseInt(ti[2]);
long d1 = TimeUnit.DAYS.toMillis(days);
long m1 = TimeUnit.MINUTES.toMillis(min);
long h1 = TimeUnit.HOURS.toMillis(hrs);
long s1 = TimeUnit.SECONDS.toMillis(sec);
final long milliseco = d1 + m1 + h1 + s1;
if (cdt_sent != null) {
cdt_sent.cancel();
cdt_sent = null;
}
cdt_sent = new CountDownTimer(milliseco, 1000)
{
int days = 0;
int hours1 = 0;
private String sDate;
int min = 0;
int sec = 0;
@Override
public void onTick(long millisUntilFinished)
{
millisUntilFinished -= (days * DateUtils.DAY_IN_MILLIS);
if (millisUntilFinished > DateUtils.HOUR_IN_MILLIS)
{
hours1 = (int) (millisUntilFinished / DateUtils.HOUR_IN_MILLIS);
}
millisUntilFinished -= (hours1 * DateUtils.HOUR_IN_MILLIS);
if (millisUntilFinished > DateUtils.MINUTE_IN_MILLIS)
{
min = (int) (millisUntilFinished / DateUtils.MINUTE_IN_MILLIS);
}
millisUntilFinished -= (min * DateUtils.MINUTE_IN_MILLIS);
if (millisUntilFinished > DateUtils.SECOND_IN_MILLIS)
{
sec = (int) (millisUntilFinished / DateUtils.SECOND_IN_MILLIS);
}
sDate = " " + String.format("%02d", hours1) + "h " + String.format("%02d", min) + "m " + String.format("%02d", sec) + "s ";
_listDataHeader.get(groupPosition).setTime(sDate);
String hms = String.format("%02d,%02d:%02d:%02d", TimeUnit.MILLISECONDS.toDays(milliseco),TimeUnit.MILLISECONDS.toHours(milliseco),
TimeUnit.MILLISECONDS.toMinutes(milliseco) % TimeUnit.HOURS.toMinutes(1),
TimeUnit.MILLISECONDS.toSeconds(milliseco) % TimeUnit.MINUTES.toSeconds(1));
// Log.v("", "Bansi"+"==hms=="+hms);
tv.setText(_listDataHeader.get(groupPosition).getTime());
}
@Override
public void onFinish() {
tv.setText("Completion time over");
deadline.setVisibility(View.GONE);
}
};
counters.put(tv, cdt_sent);
cdt_sent.start();
}**
return convertView;
}
@SuppressLint("InflateParams")
@Override
public View getChildView(final int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
final SentModel childText = (SentModel) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.element_childsent, null);
}
ll_whoaccpted[groupPosition] = (LinearLayout) convertView.findViewById(R.id.ll_whoaccpted);
ll_end[groupPosition] = (FrameLayout) convertView.findViewById(R.id.ll_end);
ll_closeaceess[groupPosition] = (FrameLayout) convertView.findViewById(R.id.ll_closeaceess);
txt_whoaccepted = (TextView) convertView.findViewById(R.id.txt_whoaccepted);
img_block = (ImageView) convertView.findViewById(R.id.img_block);
img_end = (ImageView) convertView.findViewById(R.id.img_end);
txt_end = (TextView) convertView.findViewById(R.id.txt_end);
txt_closeacess = (TextView) convertView.findViewById(R.id.txt_closeacess);
ll_whoaccpted[groupPosition].setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
showWhoAcceptedpopup(childText.getB_id(), groupPosition + "");
if (Utils.detectInternetConnection(context)) {
new post_WhoAccepted().execute(childText.getB_id(), groupPosition + "");
} else {
progressDialog.showWarningDialog_Click(getString(R.string.no_internet), new OnClickListener() {
@Override
public void onClick(View v) {
progressDialog.dialogDismiss();
try {
Intent callGPSSettingIntent = new Intent(android.provider.Settings.ACTION_WIFI_SETTINGS);
startActivity(callGPSSettingIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
}
});
if (childText.getIs_cancel().equalsIgnoreCase("0")) {
ll_end[groupPosition].setBackgroundColor(Color.parseColor("#CBCBCB"));
txt_end.setTextColor(Color.parseColor("#7E7E7E"));
txt_end.setText("You ended the .");
txt_end.setGravity(Gravity.CENTER);
img_end.setImageResource(R.drawable.cross_circleclick);
ll_end[groupPosition].setClickable(false);
} else {
ll_end[groupPosition].setBackgroundColor(Color.parseColor("#650030"));
txt_end.setTextColor(Color.parseColor("#FF0101"));
txt_end.setText("End ");
txt_end.setGravity(Gravity.RIGHT);
img_end.setImageResource(R.drawable.cross_circle);
ll_end[groupPosition].setClickable(true);
if (endornot.get(groupPosition) == 0) {
} else {
ll_end[groupPosition].setBackgroundColor(Color.parseColor("#CBCBCB"));
txt_end.setTextColor(Color.parseColor("#7E7E7E"));
txt_end.setText("You ended the .");
img_end.setImageResource(R.drawable.cross_circleclick);
txt_end.setGravity(Gravity.CENTER);
ll_end[groupPosition].setClickable(false);
}
ll_end[groupPosition].setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.v("", TAG + "==childposition==" + groupPosition);
if (endornot.get(groupPosition) == 0) {
if (Utils.detectInternetConnection(context)) {
new post_EndorClose().execute(childText.getB_id(), "1", groupPosition + "");
} else {
progressDialog.showWarningDialog_Click(getString(R.string.no_internet), new OnClickListener() {
@Override
public void onClick(View v) {
progressDialog.dialogDismiss();
try {
Intent callGPSSettingIntent = new Intent(android.provider.Settings.ACTION_WIFI_SETTINGS);
startActivity(callGPSSettingIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
} else {
}
}
});
}
if (childText.getIs_close().equalsIgnoreCase("0")) {
ll_closeaceess[groupPosition].setBackgroundColor(Color.parseColor("#E7E7E7"));
txt_closeacess.setTextColor(Color.parseColor("#7E7E7E"));
txt_closeacess.setText("Access to the closed");
txt_closeacess.setGravity(Gravity.CENTER);
ll_closeaceess[groupPosition].setClickable(false);
} else {
ll_closeaceess[groupPosition].setBackgroundColor(Color.parseColor("#006500"));
txt_closeacess.setTextColor(Color.parseColor("#043303"));
txt_closeacess.setText("Close access to ");
ll_closeaceess[groupPosition].setClickable(true);
txt_closeacess.setGravity(Gravity.RIGHT);
if (aceessdeniedornot.get(groupPosition) == 0) {
} else {
ll_closeaceess[groupPosition].setBackgroundColor(Color.parseColor("#E7E7E7"));
txt_closeacess.setTextColor(Color.parseColor("#7E7E7E"));
txt_closeacess.setText("Access to the closed");
txt_closeacess.setGravity(Gravity.CENTER);
ll_closeaceess[groupPosition].setClickable(false);
}
ll_closeaceess[groupPosition].setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.v("", TAG + "==childposition==" + groupPosition);
if (aceessdeniedornot.get(groupPosition) == 0) {
if (Utils.detectInternetConnection(context)) {
new post_EndorClose().execute(childText.getB_id(), "2", groupPosition + "");
} else {
progressDialog.showWarningDialog_Click(getString(R.string.no_internet), new OnClickListener() {
@Override
public void onClick(View v) {
progressDialog.dialogDismiss();
try {
Intent callGPSSettingIntent = new Intent(android.provider.Settings.ACTION_WIFI_SETTINGS);
startActivity(callGPSSettingIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
} else {
}
}
});
}
return convertView;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
请帮帮我，我仍然被困在这里我正在努力解决它，但我有时间限制。
谢谢！
我得先说这个，你的代码真的很难阅读。
- 尝试使用方法将视图创建代码与
getGroupView 和 getChildView 上的繁忙代码分开。您也可以在 getChildView 上使用 ViewHolder 模式来保存您的视图，而不是那些数组（ll_whoaccpted，等等...）
TextUtils.isEmpty() 可以帮助您更好地检查您的字符串是空的还是空的
if (TextUtils.isEmpty(headerTitle.getRemaining_completion_time()))
//instead of
if (headerTitle.getRemaining_completion_time().equalsIgnoreCase("") || headerTitle.getRemaining_completion_time() == null)
使 Sent_ListAdapter 实现 OnClickListener，而不是每次 Android 为您的列表获取视图时都重新创建侦听器（新）。在视图参数上添加条件以检查单击了哪种视图类型。
在 CountDownTimer 上使用 Date 和 SimpleDataFormat，这些手动字符串格式非常糟糕且不可读
现在进入正题：
on scrolling expandable list view timer restarts
发生这种情况是因为 ListView 重新创建了未显示的 views/groups（调用 getView/getGroup 方法）以重用其他数据的行。
如果你想避免这种情况，你应该在 getView 和 getGroup 之外创建并启动你的计数器（构造函数是个好地方）。
on expand and collapse timer restarts
与第一个问题完全相同。
on event on child button i need to update particular position's text
on parentview
我不太明白，所以我猜您想更改主布局（包含列表视图的布局）上的 TextView 的文本。那么您需要将该 TextView 的引用提供给 Sent_ListAdapter。
或者，不是将通用上下文传递给 Sent_ListAdapter，而是传递 Activity/Fragment 它自己：
public Sent_ListAdapter(MyActivity activty, List<SentModel> listDataHeader, HashMap<SentModel, List<SentModel>> listChildData) {
this._myactivity = myactivity;
this._listDataHeader = listDataHeader;
...
}
// The listener that handles all the events of your Sent_ListAdapter
@Override
public void onClick(View v) {
if(v.getTag() == "theBoutonThatShouldResetTheCounter") { //or other condition
myactivite.myTextView.setText("------");
}
}
编辑
But how will I get position in constructor for every row?
您需要反过来思考：列表视图使用您的数据源来显示行。因此，您需要遍历数据源上的元素（在您的情况下为 listDataHeader）。像 :
private List<CountDownTimer> counters;
public Sent_ListAdapter(Context context, List<SentModel> listDataHeader, HashMap<SentModel, List<SentModel>> listChildData) {
...
counters = new ArrayList()<>;
for(SentModel model : listDataHeader) {
long milliseco = model.getRemainingTimeInMs(); //TODO: create something like this or figure out how to get your couters starting times on ms
CountDownTimer cdt = new MyCountDownTimer(milliseco, 1000);
cdt.start(); // I don't know when you want to start your counters, if they start at the same time it could be here
}
}
public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
...
datetime_element = (TextView) convertView.findViewById(R.id.datetime_element);
deadline = (TextView) convertView.findViewById(R.id.deadline);
...
CountDownTimer cdt = counters.get(groupPosition);
cdt.setTv1 = datetime_element;
cdt.setTv2 = deadline;
...
}
public class MyCountDownTimer extends CountDownTimer {
public TextView tv1; //TODO: make setters instead of public
public TextView tv2; //TODO: make setters instead of public
public MyCountDownTimer(long millisInFuture, long countDownInterval) {
super(millisInFuture, countDownInterval);
}
@Override
public void onTick(long millisUntilFinished) {
//Only use this if u have something to do each tick
SimpleDateFormat df = new SimpleDateFormat(" dd,hh:mm:ss");
Date timeRemaining = //TODO: figure out how you calculate your remaining time
if(tv1 != null) {
tv1.setText(df.format(timeRemaining));
}
}
@Override
public void onFinish() {
if(tv1 != null && tv2!= null) {
tv1.setText("Completion time over");
tv2.setVisibility(View.GONE);
}
}
}
从上周开始，我尝试在可扩展列表中实现多个倒数计时器 view.I 想减少时间直到 00:00:00，据此我需要更新可扩展列表视图的父元素中的文本.
我的问题是：
1) 滚动可扩展列表视图计时器重新启动
2) 展开和折叠计时器重新启动
3）在子按钮上发生事件时，我需要更新父视图上特定位置的文本
我试图实现的另一件事是从子视图中单击一个按钮，我需要更新父视图中的文本，但我被困在那里。
这是我的适配器，包含父项和子项。
public class Sent_ListAdapter extends BaseExpandableListAdapter {
private Context _context;
**private List<SentModel> _listDataHeader;**
// child data in format of header title, child title
**private HashMap<SentModel, List<SentModel>> _listDataChild;**
private TextView txt_summary;
private TextView datetime_element;
private LinearLayout ll_arrowtorecord;
**private String[] ti;**
**private CountDownTimer cdt_sent;**
**private HashMap<TextView, CountDownTimer> counters;**
**private TextView deadline;**
public Sent_ListAdapter(Context context, List<SentModel> listDataHeader, HashMap<SentModel, List<SentModel>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
ll_end = new FrameLayout[_listDataHeader.size()];
ll_closeaceess = new FrameLayout[_listDataHeader.size()];
ll_whoaccpted = new LinearLayout[_listDataHeader.size()];
**this.counters = new HashMap<TextView, CountDownTimer>();**
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition)).size();
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition)).get(childPosition);
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
final SentModel headerTitle = (SentModel) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.element_sentlist, null);
}
ll_arrowtorecord = (LinearLayout) convertView.findViewById(R.id.ll_arrowtorecord);
ll_arrowtorecord.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (headerTitle.getFile().trim().contains(".mp4")) {
Log.v("", TAG + "==video==" + headerTitle.getFile());
Intent intent = new Intent(android.content.Intent.ACTION_VIEW);
Uri data = Uri.parse(headerTitle.getFile());
intent.setDataAndType(data, "video/mp4");
startActivity(intent);
} else if (headerTitle.getFile().trim().contains(".jpg")) {
Log.v("", TAG + "==image==" + headerTitle.getFile());
Intent gotorecoedactivity = new Intent(context, RecordedAsset.class);
gotorecoedactivity.putExtra("image", headerTitle.getFile());
startActivity(gotorecoedactivity);
overridePendingTransition(R.anim.right_slide_in, R.anim.left_side_out);
finish();
} else {
Toast.makeText(context, "No recorded asset is there.", Toast.LENGTH_SHORT).show();
}
}
});
txt_summary = (TextView) convertView.findViewById(R.id.txt_summary);
if (headerTitle.get_desc().equalsIgnoreCase("") || headerTitle.get_desc() == null) {
txt_summary.setText(" Description");
} else {
txt_summary.setText(headerTitle.get_desc());
}
datetime_element = (TextView) convertView.findViewById(R.id.datetime_element);
final TextView tv = datetime_element;
deadline = (TextView) convertView.findViewById(R.id.deadline);
**if (headerTitle.getRemaining_completion_time().equalsIgnoreCase("") || headerTitle.getRemaining_completion_time() == null) {
datetime_element.setText("");
}
else if (headerTitle.getRemaining_completion_time().equalsIgnoreCase("00:00:00"))
{
tv.setText("Completion time over");
deadline.setVisibility(View.GONE);
}
else
{
ti = headerTitle.getRemaining_completion_time().split(":");
int hrs = Integer.parseInt(ti[0]);
cdt_sent = counters.get(datetime_element);
int days = Integer.parseInt(headerTitle.getRemaining_days());
// int hours1 = datetime_plus(days, Integer.parseInt(ti[0]));
int min = Integer.parseInt(ti[1]);
int sec = Integer.parseInt(ti[2]);
long d1 = TimeUnit.DAYS.toMillis(days);
long m1 = TimeUnit.MINUTES.toMillis(min);
long h1 = TimeUnit.HOURS.toMillis(hrs);
long s1 = TimeUnit.SECONDS.toMillis(sec);
final long milliseco = d1 + m1 + h1 + s1;
if (cdt_sent != null) {
cdt_sent.cancel();
cdt_sent = null;
}
cdt_sent = new CountDownTimer(milliseco, 1000)
{
int days = 0;
int hours1 = 0;
private String sDate;
int min = 0;
int sec = 0;
@Override
public void onTick(long millisUntilFinished)
{
millisUntilFinished -= (days * DateUtils.DAY_IN_MILLIS);
if (millisUntilFinished > DateUtils.HOUR_IN_MILLIS)
{
hours1 = (int) (millisUntilFinished / DateUtils.HOUR_IN_MILLIS);
}
millisUntilFinished -= (hours1 * DateUtils.HOUR_IN_MILLIS);
if (millisUntilFinished > DateUtils.MINUTE_IN_MILLIS)
{
min = (int) (millisUntilFinished / DateUtils.MINUTE_IN_MILLIS);
}
millisUntilFinished -= (min * DateUtils.MINUTE_IN_MILLIS);
if (millisUntilFinished > DateUtils.SECOND_IN_MILLIS)
{
sec = (int) (millisUntilFinished / DateUtils.SECOND_IN_MILLIS);
}
sDate = " " + String.format("%02d", hours1) + "h " + String.format("%02d", min) + "m " + String.format("%02d", sec) + "s ";
_listDataHeader.get(groupPosition).setTime(sDate);
String hms = String.format("%02d,%02d:%02d:%02d", TimeUnit.MILLISECONDS.toDays(milliseco),TimeUnit.MILLISECONDS.toHours(milliseco),
TimeUnit.MILLISECONDS.toMinutes(milliseco) % TimeUnit.HOURS.toMinutes(1),
TimeUnit.MILLISECONDS.toSeconds(milliseco) % TimeUnit.MINUTES.toSeconds(1));
// Log.v("", "Bansi"+"==hms=="+hms);
tv.setText(_listDataHeader.get(groupPosition).getTime());
}
@Override
public void onFinish() {
tv.setText("Completion time over");
deadline.setVisibility(View.GONE);
}
};
counters.put(tv, cdt_sent);
cdt_sent.start();
}**
return convertView;
}
@SuppressLint("InflateParams")
@Override
public View getChildView(final int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
final SentModel childText = (SentModel) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.element_childsent, null);
}
ll_whoaccpted[groupPosition] = (LinearLayout) convertView.findViewById(R.id.ll_whoaccpted);
ll_end[groupPosition] = (FrameLayout) convertView.findViewById(R.id.ll_end);
ll_closeaceess[groupPosition] = (FrameLayout) convertView.findViewById(R.id.ll_closeaceess);
txt_whoaccepted = (TextView) convertView.findViewById(R.id.txt_whoaccepted);
img_block = (ImageView) convertView.findViewById(R.id.img_block);
img_end = (ImageView) convertView.findViewById(R.id.img_end);
txt_end = (TextView) convertView.findViewById(R.id.txt_end);
txt_closeacess = (TextView) convertView.findViewById(R.id.txt_closeacess);
ll_whoaccpted[groupPosition].setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
showWhoAcceptedpopup(childText.getB_id(), groupPosition + "");
if (Utils.detectInternetConnection(context)) {
new post_WhoAccepted().execute(childText.getB_id(), groupPosition + "");
} else {
progressDialog.showWarningDialog_Click(getString(R.string.no_internet), new OnClickListener() {
@Override
public void onClick(View v) {
progressDialog.dialogDismiss();
try {
Intent callGPSSettingIntent = new Intent(android.provider.Settings.ACTION_WIFI_SETTINGS);
startActivity(callGPSSettingIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
}
});
if (childText.getIs_cancel().equalsIgnoreCase("0")) {
ll_end[groupPosition].setBackgroundColor(Color.parseColor("#CBCBCB"));
txt_end.setTextColor(Color.parseColor("#7E7E7E"));
txt_end.setText("You ended the .");
txt_end.setGravity(Gravity.CENTER);
img_end.setImageResource(R.drawable.cross_circleclick);
ll_end[groupPosition].setClickable(false);
} else {
ll_end[groupPosition].setBackgroundColor(Color.parseColor("#650030"));
txt_end.setTextColor(Color.parseColor("#FF0101"));
txt_end.setText("End ");
txt_end.setGravity(Gravity.RIGHT);
img_end.setImageResource(R.drawable.cross_circle);
ll_end[groupPosition].setClickable(true);
if (endornot.get(groupPosition) == 0) {
} else {
ll_end[groupPosition].setBackgroundColor(Color.parseColor("#CBCBCB"));
txt_end.setTextColor(Color.parseColor("#7E7E7E"));
txt_end.setText("You ended the .");
img_end.setImageResource(R.drawable.cross_circleclick);
txt_end.setGravity(Gravity.CENTER);
ll_end[groupPosition].setClickable(false);
}
ll_end[groupPosition].setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.v("", TAG + "==childposition==" + groupPosition);
if (endornot.get(groupPosition) == 0) {
if (Utils.detectInternetConnection(context)) {
new post_EndorClose().execute(childText.getB_id(), "1", groupPosition + "");
} else {
progressDialog.showWarningDialog_Click(getString(R.string.no_internet), new OnClickListener() {
@Override
public void onClick(View v) {
progressDialog.dialogDismiss();
try {
Intent callGPSSettingIntent = new Intent(android.provider.Settings.ACTION_WIFI_SETTINGS);
startActivity(callGPSSettingIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
} else {
}
}
});
}
if (childText.getIs_close().equalsIgnoreCase("0")) {
ll_closeaceess[groupPosition].setBackgroundColor(Color.parseColor("#E7E7E7"));
txt_closeacess.setTextColor(Color.parseColor("#7E7E7E"));
txt_closeacess.setText("Access to the closed");
txt_closeacess.setGravity(Gravity.CENTER);
ll_closeaceess[groupPosition].setClickable(false);
} else {
ll_closeaceess[groupPosition].setBackgroundColor(Color.parseColor("#006500"));
txt_closeacess.setTextColor(Color.parseColor("#043303"));
txt_closeacess.setText("Close access to ");
ll_closeaceess[groupPosition].setClickable(true);
txt_closeacess.setGravity(Gravity.RIGHT);
if (aceessdeniedornot.get(groupPosition) == 0) {
} else {
ll_closeaceess[groupPosition].setBackgroundColor(Color.parseColor("#E7E7E7"));
txt_closeacess.setTextColor(Color.parseColor("#7E7E7E"));
txt_closeacess.setText("Access to the closed");
txt_closeacess.setGravity(Gravity.CENTER);
ll_closeaceess[groupPosition].setClickable(false);
}
ll_closeaceess[groupPosition].setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.v("", TAG + "==childposition==" + groupPosition);
if (aceessdeniedornot.get(groupPosition) == 0) {
if (Utils.detectInternetConnection(context)) {
new post_EndorClose().execute(childText.getB_id(), "2", groupPosition + "");
} else {
progressDialog.showWarningDialog_Click(getString(R.string.no_internet), new OnClickListener() {
@Override
public void onClick(View v) {
progressDialog.dialogDismiss();
try {
Intent callGPSSettingIntent = new Intent(android.provider.Settings.ACTION_WIFI_SETTINGS);
startActivity(callGPSSettingIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
} else {
}
}
});
}
return convertView;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
请帮帮我，我仍然被困在这里我正在努力解决它，但我有时间限制。 谢谢！
我得先说这个，你的代码真的很难阅读。
- 尝试使用方法将视图创建代码与
getGroupView和getChildView上的繁忙代码分开。您也可以在getChildView上使用 ViewHolder 模式来保存您的视图，而不是那些数组（ll_whoaccpted，等等...） TextUtils.isEmpty()可以帮助您更好地检查您的字符串是空的还是空的if (TextUtils.isEmpty(headerTitle.getRemaining_completion_time())) //instead of if (headerTitle.getRemaining_completion_time().equalsIgnoreCase("") || headerTitle.getRemaining_completion_time() == null)使
Sent_ListAdapter实现 OnClickListener，而不是每次 Android 为您的列表获取视图时都重新创建侦听器（新）。在视图参数上添加条件以检查单击了哪种视图类型。在 CountDownTimer 上使用 Date 和 SimpleDataFormat，这些手动字符串格式非常糟糕且不可读
现在进入正题：
on scrolling expandable list view timer restarts
发生这种情况是因为 ListView 重新创建了未显示的 views/groups（调用 getView/getGroup 方法）以重用其他数据的行。
如果你想避免这种情况，你应该在 getView 和 getGroup 之外创建并启动你的计数器（构造函数是个好地方）。
on expand and collapse timer restarts
与第一个问题完全相同。
on event on child button i need to update particular position's text on parentview
我不太明白，所以我猜您想更改主布局（包含列表视图的布局）上的 TextView 的文本。那么您需要将该 TextView 的引用提供给 Sent_ListAdapter。
或者，不是将通用上下文传递给 Sent_ListAdapter，而是传递 Activity/Fragment 它自己：
public Sent_ListAdapter(MyActivity activty, List<SentModel> listDataHeader, HashMap<SentModel, List<SentModel>> listChildData) {
this._myactivity = myactivity;
this._listDataHeader = listDataHeader;
...
}
// The listener that handles all the events of your Sent_ListAdapter
@Override
public void onClick(View v) {
if(v.getTag() == "theBoutonThatShouldResetTheCounter") { //or other condition
myactivite.myTextView.setText("------");
}
}
编辑
But how will I get position in constructor for every row?
您需要反过来思考：列表视图使用您的数据源来显示行。因此，您需要遍历数据源上的元素（在您的情况下为 listDataHeader）。像 :
private List<CountDownTimer> counters;
public Sent_ListAdapter(Context context, List<SentModel> listDataHeader, HashMap<SentModel, List<SentModel>> listChildData) {
...
counters = new ArrayList()<>;
for(SentModel model : listDataHeader) {
long milliseco = model.getRemainingTimeInMs(); //TODO: create something like this or figure out how to get your couters starting times on ms
CountDownTimer cdt = new MyCountDownTimer(milliseco, 1000);
cdt.start(); // I don't know when you want to start your counters, if they start at the same time it could be here
}
}
public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
...
datetime_element = (TextView) convertView.findViewById(R.id.datetime_element);
deadline = (TextView) convertView.findViewById(R.id.deadline);
...
CountDownTimer cdt = counters.get(groupPosition);
cdt.setTv1 = datetime_element;
cdt.setTv2 = deadline;
...
}
public class MyCountDownTimer extends CountDownTimer {
public TextView tv1; //TODO: make setters instead of public
public TextView tv2; //TODO: make setters instead of public
public MyCountDownTimer(long millisInFuture, long countDownInterval) {
super(millisInFuture, countDownInterval);
}
@Override
public void onTick(long millisUntilFinished) {
//Only use this if u have something to do each tick
SimpleDateFormat df = new SimpleDateFormat(" dd,hh:mm:ss");
Date timeRemaining = //TODO: figure out how you calculate your remaining time
if(tv1 != null) {
tv1.setText(df.format(timeRemaining));
}
}
@Override
public void onFinish() {
if(tv1 != null && tv2!= null) {
tv1.setText("Completion time over");
tv2.setVisibility(View.GONE);
}
}
}