我想实现待办事项列表，在活动中获取两个列表视图，listview1和listview2垂直堆叠，listview1将允许添加项目，每个项目都有一个标签和复选框，当点击项目的复选框时，我需要要将项目移动到listview2，listview2中的项目应显示其选中的复选框，因此listview2保存选中的项目。如果在List2中未选中该项，则应返回到list1。我怎样才能实现这种行为？以下代码是我到目前为止所尝试的。
public class ListItem{
String desc;
boolean isSelected;
//..Getters & Setters ...
}
///////////////////////////////////////////////////
public class ListItemAdapter extends ArrayAdapter<ListItem> {
Context context;
List<ListItem> items = null;
List<ListItem> checkedItems = new ArrayList<ListItem>();
int layoutResourceId;
public ListItemAdapter(Context context, int layoutResourceId, List<ListItem> items) {
super(context, layoutResourceId, items);
this.context = context;
this.layoutResourceId = layoutResourceId;
this.items = items;
}
static class ViewHolder{
protected TextView txtDesc;
protected CheckBox checkbox;
}
@Override
public View getView(final int position, final View convertView, final ViewGroup parent) {
View row = convertView;
// row.setOnClickListener(null);
if(row == null) {
LayoutInflater inflater = ((Activity)context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
final ViewHolder viewHolder = new ViewHolder();
viewHolder.txtDesc = (TextView)row.findViewById(R.id.txtTitle);
viewHolder.checkbox = (CheckBox)row.findViewById(R.id.checkBox1);
row.setTag(viewHolder);
viewHolder.checkbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
ListItem currentItem = (ListItem) viewHolder.checkbox.getTag();
currentItem.setSelected(buttonView.isChecked());
if(currentItem.isSelected()){
//add item to checkedItems list
//remove item from uncheckedlist
}
notifyDataSetChanged();
}
});
}else{
row = convertView;
((ViewHolder) row.getTag()).checkbox.setTag(items.get(position));
}
ListItem item = items.get(position);
ViewHolder holder = (ViewHolder) row.getTag();
holder.txtDesc.setText(item.getDesc());
holder.checkbox.setSelected(item.isSelected());
return row;
}
}
///////////////////////////////////////////////////
public class DetailsActivity extends Activity {
float HINT_FONT_SIZE = 10.0F;
float TEXT_FONT_SIZE = 12.0F;
List<ListItem> uncheckedItems = new ArrayList<ListItem>();
List<ListItem>checkedItems = new ArrayList<ListItem>();
// List<ListItem> items = null;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_details);
final EditText editText = (EditText)findViewById(R.id.editText);
final ListView listView = (ListView) findViewById(R.id.listView);
final ListView listView2 = (ListView) findViewById(R.id.listView2);
final ListItemAdapter adapter = new ListItemAdapter(this,R.layout.details_item_row, uncheckedItems);
// checkedItems = ListManager.getInstance().getCheckedItems();
final ListItemAdapter adapter2 = new ListItemAdapter(this,R.layout.details_item_row, checkedItems);
listView.setAdapter(adapter);
listView2.setAdapter(adapter2);
........
}
答案 0 :(得分：0)
我这样做了：
在listview项目中：item.setId（youId）;
然后在onClickListener {onClick（View v）{v.getId（）;}}
答案 1 :(得分：0)
如果其他人正在寻找答案，这是我的解决方案。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="7dp"
>
<CheckBox
android:id="@+id/checkbox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<TextView
android:id="@+id/item_title"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:gravity="center_vertical"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="14dp"
android:textStyle="normal"
android:layout_marginRight="25dp"
android:layout_marginTop="5dp"
android:layout_marginBottom="5dp"/>
public class AlphabetListDemo extends Activity {
//String of alphabets //
List<ListItem> alphabets = new ArrayList<ListItem>();
List<ListItem> prods = new ArrayList<ListItem>();
ListView L1, L2;
myAdapter myadp;
myAdapter2 myadp2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_alphabet_list_demo);
L1 = (ListView)findViewById(R.id.list1);
L2 = (ListView)findViewById(R.id.list2);
myadp = new myAdapter(this,alphabets);
myadp2 = new myAdapter2(this,prods);
L1.setAdapter(myadp);
L2.setAdapter(myadp2);
L1.setOnItemClickListener(new AdapterView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
//add to Other List & update
prods.add(alphabets.get(arg2));
L2.setAdapter(myadp2);
//remove from current List & update
alphabets.remove(arg2);
L1.setAdapter(myadp);
}
});
L2.setOnItemClickListener(new AdapterView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
//add to Other List & update
alphabets.add(prods.get(arg2));
L1.setAdapter(myadp);
//remove from current List & update
prods.remove(arg2);
L2.setAdapter(myadp2);
}
});
final EditText textField = (EditText) findViewById(R.id.editText);
Button addBtn = (Button) findViewById(R.id.addBtn);
addBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(textField.getText().length()>0){
alphabets.add(new ListItem(textField.getText().toString(),false));
L1.setAdapter(myadp);
}
}
});
}
class myAdapter extends ArrayAdapter<ListItem>
{
TextView label;
CheckBox checkBox;
View row;
public myAdapter(Context context,List<ListItem>list)
{
super(context, android.R.layout.simple_list_item_1, list);
}
public View getView(final int position, View convertView, ViewGroup parent)
{
try{
LayoutInflater inflater=getLayoutInflater();
row = inflater.inflate(R.layout.simple_list_item_1, parent, false);
label = (TextView)row.findViewById(R.id.item_title);
checkBox= (CheckBox)row.findViewById(R.id.checkbox1);
label.setText(alphabets.get(position).description);
label.setTextColor(Color.BLACK);
checkBox.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
prods.add(alphabets.get(position));
L2.setAdapter(myadp2);
//remove from current List & update
alphabets.remove(position);
L1.setAdapter(myadp);
}
});
}catch(Exception e){
}
return row;
}
}
// adapter for second list.....
class myAdapter2 extends ArrayAdapter<ListItem>
{
TextView label;
CheckBox checkBox;
View row;
public myAdapter2(Context context,List<ListItem>list)
{
super(context, android.R.layout.simple_list_item_1, list);
}
public View getView(final int position, View convertView, ViewGroup parent)
{
try{
LayoutInflater inflater=getLayoutInflater();
row = inflater.inflate(R.layout.simple_list_item_1, parent, false);
label = (TextView)row.findViewById(R.id.item_title);
checkBox= (CheckBox)row.findViewById(R.id.checkbox1);
label.setText(prods.get(position).description);
label.setTextColor(Color.BLUE);
checkBox.setChecked(true);
checkBox.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//add to Other List & update
alphabets.add(prods.get(position));
L1.setAdapter(myadp);
//remove from current List & update
prods.remove(position);
L2.setAdapter(myadp2);
}
});
}catch(Exception e){
}
return row;
}
}
class ListItem{
public boolean isSelected;
public String description;
ListItem(String description, boolean isSelected){
this.description = description;
this.isSelected=isSelected;
}
}