我想在按钮点击该特定列表项时在列表项上添加edittext。我需要在edittexts中获取文本。我已经发布了我设法提出的代码。但是当我滚动列表视图时，edittexts也会被添加到其他列表项中。请帮忙......
MainActivity ：
ArrayList<EdittextValues> etValues = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ArrayList<ListItemModel> arrayList = new ArrayList<>();
arrayList.add(new ListItemModel("Title 1"));
arrayList.add(new ListItemModel("Title 2"));
arrayList.add(new ListItemModel("Title 3"));
arrayList.add(new ListItemModel("Title 4"));
arrayList.add(new ListItemModel("Title 5"));
arrayList.add(new ListItemModel("Title 6"));
arrayList.add(new ListItemModel("Title 7"));
arrayList.add(new ListItemModel("Title 8"));
arrayList.add(new ListItemModel("Title 9"));
arrayList.add(new ListItemModel("Title 10"));
ListView lv = (ListView)findViewById(R.id.listview);
lv.setItemsCanFocus(true);
final CustomListAdapter adapter = new CustomListAdapter(MainActivity.this, arrayList, etValues);
lv.setAdapter(adapter);
Button btn = (Button)findViewById(R.id.show);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String all="";
for (int i=0; i<etValues.size(); i++){
all += etValues.get(i).getValue()+"\n";
}
Toast.makeText(MainActivity.this, all, Toast.LENGTH_LONG).show();
}
});
}
CustomListAdapter：
public class CustomListAdapter extends BaseAdapter {
ArrayList<ListItemModel> items;
ViewHolder holder;
Context mContext;
ArrayList<EdittextValues> etValues;
int i = 0;
public CustomListAdapter(Context context, ArrayList<ListItemModel> items, ArrayList<EdittextValues> etValues) {
this.mContext = context;
this.items = items;
this.etValues = etValues;
}
@Override
public int getCount() {
return items.size();
}
@Override
public Object getItem(int i) {
return items.get(i);
}
@Override
public long getItemId(int i) {
return 0;
}
@Override
public View getView(final int position, View convertView, ViewGroup viewGroup) {
if (convertView == null) {
holder = new ViewHolder();
LayoutInflater mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.list_row, null);
holder.tvTitle = (TextView) convertView.findViewById(R.id.title);
holder.btnAdd = (Button) convertView.findViewById(R.id.addEdittext);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.tvTitle.setText(items.get(position).getTitle());
final View finalConvertView = convertView;
holder.btnAdd.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
etValues.add(new EdittextValues(position, i, ""));
LinearLayout mLayout = (LinearLayout) finalConvertView.findViewById(R.id.llChild);
LinearLayout.LayoutParams mparams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
final EditText myEditText = new EditText(mContext);
mparams.setMargins(46, 3, 46, 3);
myEditText.setLayoutParams(mparams);
mLayout.setOrientation(LinearLayout.VERTICAL);
myEditText.setPadding(10, 10, 10, 10);
myEditText.setSingleLine(true);
myEditText.setId(i);
myEditText.setHeight(72);
myEditText.setTextSize(15);
myEditText.setFocusableInTouchMode(true);
myEditText.setFocusable(true);
myEditText.setHint("Type");
mLayout.addView(myEditText);
myEditText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) {
}
@Override
public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) {
etValues.get(myEditText.getId()).setValue(charSequence+"");
Toast.makeText(mContext, etValues.get(myEditText.getId()).getValue(), Toast.LENGTH_SHORT).show();
}
@Override
public void afterTextChanged(Editable editable) {
}
});
i++;
}
});
return convertView;
}
private class ViewHolder {
public TextView tvTitle;
public Button btnAdd;
}
}
ListItemModel：
public class ListItemModel {
String title;
public ListItemModel(String title) {
this.title = title;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
}
EdittextValues：
public class EdittextValues {
int ids, etIds;
String value;
public EdittextValues(int ids, int etIds, String value) {
this.ids = ids;
this.etIds = etIds;
this.value = value;
}
public int getIds() {
return ids;
}
public void setIds(int ids) {
this.ids = ids;
}
public int getEtIds() {
return etIds;
}
public void setEtIds(int etIds) {
this.etIds = etIds;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
activity_main.xml中：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="@+id/show"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Show Values"/>
<ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/show"
android:descendantFocusability="beforeDescendants"/>
</RelativeLayout>
list_row.xml：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp">
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Title"
android:textSize="20dp" />
<Button
android:id="@+id/addEdittext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="+"
android:layout_alignTop="@+id/title"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<LinearLayout
android:id="@+id/llChild"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_below="@+id/addEdittext">
</LinearLayout>
</RelativeLayout>