我正在开发一个项目，其中有一个扩展List View的类。在get-view方法中有线性布局，其中我在几个位置添加一些文本视图，直到它工作正常但是当我开始滚动列表视图时，文本视图开始滑出行项目和随机位置和多次。我怎么解决这个问题？
在get-view方法中，我使用以下代码添加text-view
TableRow.LayoutParams paramsExample = new TableRow.LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.MATCH_PARENT, 0);
paramsExample.setMargins(5, 5, 5, 5);
TextView tv = new TextView(activity);
tv.setLayoutParams(paramsExample);
tv.setTextColor(Color.BLACK);
tv.setMaxLines(1);
tv.setTextSize(FontClass.fontSize);
tv.setEllipsize(TruncateAt.END);
tv.setText(eventList.get(i).getEventTitle() + "");
l.addView(tv);
适配器代码......
private class MyCustomAdapter extends BaseAdapter {
private static final int TYPE_ITEM = 0;
private static final int TYPE_SEPARATOR = 1;
private static final int TYPE_MAX_COUNT = TYPE_SEPARATOR + 1;
private ArrayList<String> mDataDate = new ArrayList<String>();
private ArrayList<String> mDataMonth = new ArrayList<String>();
private LayoutInflater mInflater;
private TreeSet<Integer> mSeparatorsSet = new TreeSet<Integer>();
// String Text,UpperText;
public MyCustomAdapter() {
mInflater = (LayoutInflater) getContext().getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
}
public void addItem(final String item1, final String item2) {
mDataDate.add(item1);
mDataMonth.add(item2);
notifyDataSetChanged();
}
public void addSeparatorItem(final String item1, final String item2) {
mDataDate.add(item1);
mDataMonth.add(item2);
// save separator position
mSeparatorsSet.add(mDataDate.size() - 1);
notifyDataSetChanged();
}
@Override
public int getItemViewType(int position) {
return mSeparatorsSet.contains(position) ? TYPE_SEPARATOR
: TYPE_ITEM;
}
@Override
public int getViewTypeCount() {
return TYPE_MAX_COUNT;
}
@Override
public int getCount() {
return mDataDate.size();
}
@Override
public String getItem(int position) {
return mDataDate.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@SuppressWarnings("deprecation")
@Override
public View getView(final int position, View convertView,
ViewGroup parent) {
ViewHolder holder = null;
int type = getItemViewType(position);
if (convertView == null) {
holder = new ViewHolder();
switch (type) {
case TYPE_ITEM:
convertView = mInflater.inflate(R.layout.item3, null);
holder = new ViewHolder();
holder.textView = (TextView) convertView
.findViewById(R.id.text);
holder.textViewR = (TextView) convertView
.findViewById(R.id.txtData);
holder.textView.setTextSize(15);
holder.textViewR.setTextSize(25);
holder.imageViewHoliday = (ImageView) convertView
.findViewById(R.id.imageViewHoliday);
Typeface ttf = Typeface
.createFromAsset(activity.getAssets(),
"fonts/dk_crayon_crumble.ttf");
holder.textView.setTypeface(ttf);
// TODO: For Set View Line Programattically
holder.layout = (LinearLayout) convertView
.findViewById(R.id.ll);
View v = new View(getContext());
v.setLayoutParams(new LayoutParams(1,
LayoutParams.FILL_PARENT));
v.setBackgroundColor(0xFF000000);
holder.layout.addView(v);
holder.layoutRight = (LinearLayout) convertView
.findViewById(R.id.linearRight);
holder.textView.setTextColor(Color.parseColor("#828282"));
break;
case TYPE_SEPARATOR:
convertView = mInflater.inflate(R.layout.item4, null);
holder = new ViewHolder();
holder.textView = (TextView) convertView
.findViewById(R.id.textSeparator);
holder.textViewR = (TextView) convertView
.findViewById(R.id.txtData);
holder.layout = (LinearLayout) convertView
.findViewById(R.id.linearlayoutSeperator);
holder.imageViewHoliday = (ImageView) convertView
.findViewById(R.id.imageViewHoliday);
Typeface ttfSeparator = Typeface
.createFromAsset(activity.getAssets(),
"fonts/dk_crayon_crumble.ttf");
holder.textView.setTypeface(ttfSeparator);
holder.textView.setTextColor(Color.parseColor("#111111"));
holder.layoutRight = (LinearLayout) convertView
.findViewById(R.id.linearRight);
break;
}
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.textView.setText(mDataDate.get(position));
// TODO TEXT SIZE CHANGING
holder.textView.setTextSize(25);
if (TYPE_ITEM == getItemViewType(position)) {
// holder.textView.setTextSize(35);
SharedPreferences sharePer = getContext().getSharedPreferences("SettingFontSizeMode", 0);
String textSize = sharePer.getString("SettingFontSizeValue", "Medium");
if(textSize.equals("Small"))
{
FontClass.fontSize = 14;
}
if(textSize.equals("Medium"))
{
FontClass.fontSize = 18;
}
if(textSize.equals("Large"))
{
FontClass.fontSize = 22;
}
holder.textViewR.setTextSize(FontClass.fontSize);
}
// Holiday set work
String Date = dayReplacement(mDataDate.get(position).replace("\n",""))+ " , " + mDataMonth.get(position);
String[] str = Date.toString().split(" ");
Holiday_Value = str[0] + " " + str[3].substring(0, 3);
setHolidayList(Holiday_Value, holder.textViewR,holder.imageViewHoliday);
// End of Holiday set work
// Existing event set work
String readEventDate = dayReplacement(mDataDate.get(position).replace("\n", "")) + " , " + mDataMonth.get(position);
Log.i("position :", ""+position+" string : "+readEventDate);
setReadCalendarEvents(readEventDate, holder.layoutRight, 0 );
// End of Existing event set work
holder.textView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
try {
String Date = dayReplacement(mDataDate.get(position)
.replace("\n", ""))
+ " , "
+ mDataMonth.get(position);
eventSetDialog(Date);
} catch (Exception e) {
e.printStackTrace();
}
}
});
holder.layoutRight.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String Date = dayReplacement(mDataDate.get(position)
.replace("\n", ""))
+ " , "
+ mDataMonth.get(position);
eventSetDialog(Date);
}
});
return convertView;
}
}
setReadEventCalendar代码......
public void setReadCalendarEvents(String date, LinearLayout l, int count) {
String[] passingDate = date.split(" ");
if (passingDate[0].equals("") || passingDate[1] == ",")
{
}
else {
d = Integer.parseInt(passingDate[0]);
m = 0;
if (passingDate[3].equals("January")) {
m = 0;
} else if (passingDate[3].equals("February")) {
m = 1;
} else if (passingDate[3].equals("March")) {
m = 2;
} else if (passingDate[3].equals("April")) {
m = 3;
} else if (passingDate[3].equals("May")) {
m = 4;
} else if (passingDate[3].equals("June")) {
m = 5;
} else if (passingDate[3].equals("July")) {
m = 6;
} else if (passingDate[3].equals("August")) {
m = 7;
} else if (passingDate[3].equals("September")) {
m = 8;
} else if (passingDate[3].equals("October")) {
m = 9;
} else if (passingDate[3].equals("November")) {
m = 10;
} else if (passingDate[3].equals("December")) {
m = 11;
}
y = Integer.parseInt(passingDate[4]);
for (int i = 0; i < eventList.size(); i++)
{
String[] str = eventList.get(i).getEventStartDate().split(" ");
int aaSize = eventList.size();
String comStr;
if(m<9)
{
if(d<10)
{
comStr = y+"-0"+(m+1)+"-0"+d;
}
else
{
comStr = y+"-0"+(m+1)+"-"+d;
}
}
else
{
if(d<10)
{
comStr = y+"-"+(m+1)+"-0"+d;
}
else
{
comStr = y+"-"+(m+1)+"-"+d;
}
}
if (comStr.equals(str[0])) {
if (count < 6) {
count++;
TableRow.LayoutParams paramsExample = new TableRow.LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.MATCH_PARENT, 0);
paramsExample.setMargins(5, 5, 5, 5);
TextView tv = new TextView(activity);
tv.setLayoutParams(paramsExample);
tv.setTextColor(Color.BLACK);
if(count == 0)
{
tv.setId(R.id.text1);
}
else if (count == 1)
{
tv.setId(R.id.text2);
}
tv.setMaxLines(1);
tv.setTextSize(FontClass.fontSize);
tv.setEllipsize(TruncateAt.END);
tv.setText(eventList.get(i).getEventTitle() + "");
l.setVisibility(View.VISIBLE);
l.addView(tv);
}
break;
}
}
}
}
答案 0 :(得分：1)
基于适配器的视图是他们回收他们的视图。我建议只需将额外的TextView添加到xml中，并在getView方法中设置它的可见性。这样，列表通常可以回收它的视图，而不会搞砸。
如果无法使用xml，请在values文件夹中创建ids.xml。为动态创建的TextView分配一个id，以便获取指向它的指针。只需将额外TextView一次添加到TableLayout，并记住在getView方法中更新其可见性。