滚动时的ListView EditTexts值搞砸 [英] ListView EditTexts values are messed up when scrolling
本文介绍了滚动时的ListView EditTexts值搞砸的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
正如我在标题中提到的，列表视图后，我复制edittexts数值为孩子= 10在for循环在我的code。
As I mentioned in the title, the listview duplicates edittexts values for the children after i=10 in the for loop in my code.
public class ExerciseAdapter extends ArrayAdapter<ExerciseSet> {
private ArrayList<ExerciseSet> mExercise;
private LayoutInflater inflater;
private List<String> texts = new ArrayList<String>();
public ExerciseAdapter(Context context, int textViewResourceId, ArrayList<ExerciseSet> objects) {
super(context, textViewResourceId, objects);
mExercise = objects;
inflater = (LayoutInflater) getContext().
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getItemViewType(int position) {
if(mExercise.get(position).isSet() == false) return 0;
else return 1;
}
@Override
public int getViewTypeCount() {
return 2; // two types of rows, exercise headers and bodies (sets)
}
public View getView(final int position, View convertView, ViewGroup parent){
View view = convertView;
final Holder holder;
for(int i = 0; i < mExercise.size(); i++) {
texts.add(String.valueOf(i));
}
if (getItemViewType(position) == 0) {
if (view == null) {
view = inflater.inflate(R.layout.item_exercise_header, null);
holder = new Holder();
holder.exerciseTitleView = (TextView) view.findViewById(R.id.tv_exercice_title);
view.setTag(holder);
} else {
holder = (Holder) convertView.getTag();
}
ExerciseSet exercise = mExercise.get(position);
if (exercise != null)
holder.exerciseTitleView.setText(exercise.getExerciseTitle());
} else {
if (view == null) {
view = inflater.inflate(R.layout.item_set, null);
holder = new Holder();
holder.setCounterView = (TextView) view.findViewById(R.id.tv_set_counter);
holder.cbSet = (CheckBox) view.findViewById(R.id.cb_setdone);
holder.repsCapt = (EditText) view.findViewById(R.id.et_reps_number);
holder.repsCapt.setTag(position);
holder.repsCapt.setText(texts.get(position));
//holder.weightCapt = (EditText) view.findViewById(R.id.et_weight_number);
//db = new DatabaseHandler(this.getContext());
//holder.weightCapt.setTag(position);
view.setTag(holder);
} else {
holder = (Holder) convertView.getTag();
}
ExerciseSet exercise = mExercise.get(position);
/*
* edit texts
*/
int tag_position=(Integer) holder.repsCapt.getTag();
holder.repsCapt.setId(tag_position);
holder.repsCapt.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
final EditText repsText = (EditText) holder.repsCapt;
if(repsText.getText().toString().length()>0){
texts.add(repsText.getText().toString());
}else{
Toast.makeText(getContext(), "Please enter some value", Toast.LENGTH_SHORT).show();
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
}
});
if (exercise != null) {
holder.setCounterView.setText(String.valueOf(exercise.getSetId()));
}
/*
* check boxes
*/
holder.cbSet.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton button, boolean isChecked) {
if(isChecked)
mExercise.get(position).setCbChecked(true);
else
mExercise.get(position).setCbChecked(false);
}
});
holder.cbSet.setChecked(exercise.isCbChecked());
}
return view;
}
static class Holder {
public EditText weightCapt;
public EditText repsCapt;
// header row items
TextView exerciseTitleView;
// body row item
CheckBox cbSet;
TextView setCounterView;
}
}
我不知道为什么，请帮助..
I dont know why, please help..
Edit_1：我试图保存值到一个ArrayList和检索他们，而意见被重用，但它仍然给我重复的值，而我向下滚动
Edit_1: I tried saving the values into an arraylist and retrieve them while the views are reused but it still gives me duplicated values while I scroll down.
Edit_2：如果我的问题是，目前还不清楚，请让我知道
Edit_2: If my question is unclear please let me know!
Edit_3：我把holder.repsCapt.setText（texts.get（位置））的，如果在{条件和值不再重复（练习！= NULL）。但仍然，如果我滚动向下和向上的价值观搞的一团糟。
Edit_3: I placed holder.repsCapt.setText(texts.get(position)) inside the if (exercise != null) { condition and the values are not duplicated anymore. But still if I scroll down and up the values get messed up.
推荐答案
我设法在谷歌一些挖掘后，解决我的问题，这里的结果：
I managed to solve my issue after some digging in google, here's the outcome:
@SuppressWarnings("unused")
@Override
public View getView(final int position, View convertView, ViewGroup arg2) {
final Holder holder;
convertView = null;
if(getItemViewType(position) == 0) {
if (convertView == null) {
convertView = inflater.inflate(R.layout.item_exercise_header, null);
holder = new Holder();
holder.exerciseTitleView = (TextView) convertView.findViewById(R.id.tv_exercice_title);
convertView.setTag(holder);
} else {
holder = (Holder) convertView.getTag();
}
ExerciseSet exercise = exerciseList.get(position);
if (exercise != null)
holder.exerciseTitleView.setText(exercise.getExerciseTitle());
}
else if (getItemViewType(position) == 1) {
if (convertView == null) {
holder = new Holder();
convertView = inflater.inflate(R.layout.item_set, null);
// reps e.t
holder.repsCapt = (EditText) convertView
.findViewById(R.id.et_reps_number);
holder.repsCapt.setTag(position);
// weight e.t
if(exerciseList.get(position).getExerSave()!=null) {
holder.repsCapt.setText(exerciseList.get(position).getExerSave().getReps());
}
// t.v
holder.setCounterView = (TextView) convertView.findViewById(R.id.tv_set_counter);
// c.b
holder.cbSet = (CheckBox) convertView.findViewById(R.id.cb_setdone);
convertView.setTag(holder);
}else {
holder = (Holder) convertView.getTag();
}
/*
* text views
*/
ExerciseSet exercise = exerciseList.get(position);
if (exercise != null) {
holder.setCounterView.setText(String.valueOf(exercise.getSetId()));
}
/*
* edit texts
*/
int tag_position=(Integer) holder.repsCapt.getTag();
holder.repsCapt.setId(tag_position);
holder.repsCapt.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
final int position2 = holder.repsCapt.getId();
final EditText repsText = (EditText) holder.repsCapt;
if(repsText.getText().toString().length()>0){
Save sv;
ExerciseSet es = exerciseList.get(position2);
if(es.getExerSave() != null)
sv = es.getExerSave();
else sv = new Save();
sv.setSet(position2);
sv.setReps(repsText.getText().toString());
es.setExerSave(sv);
exerciseList.set(position2,es);
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
/*
* checkboxes
*/
holder.cbSet.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton button, boolean isChecked) {
if(isChecked)
exerciseList.get(position).setCbChecked(true);
else
exerciseList.get(position).setCbChecked(false);
}
});
holder.cbSet.setChecked(exercise.isCbChecked());
}
return convertView;
}
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