我需要帮助，当用户点击第一个位置时，我想要其他位置应该是不可点击的，当用户点击第2个，第3个等位置时，我想只让第1个位置不可点击。
我试过了：
public class TypeOfTruckAdapter extends BaseAdapter{
List<TypeTruckPogo> list;
Context context;
LayoutInflater inflater;
public String[] Current;
TypeTruckPogo typeTruckPogo;
public static HashMap<Integer,String> truckHashMap=new HashMap<Integer,String>();
private String[] arrTemp;
boolean[] isEditTextVisible;
int counter=0;
int bestAvailiableCounter=0;
public TypeOfTruckAdapter( Context context,List<TypeTruckPogo> list) {
this.list = list;
this.context = context;
for(int i=0;i<list.size();i++)
{
truckHashMap.put(i,"");
}
arrTemp = new String[list.size()];
isEditTextVisible = new boolean[list.size()];
for (int i=0; i < isEditTextVisible.length; i++) {
isEditTextVisible[i] = false;
}
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return list.size();
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
class Viewholder {
TextView name;
EditText nmbrOfTruck;
LinearLayout ll;
int ref;
Viewholder(View view) {
name = (TextView) view.findViewById(R.id.textView1);
nmbrOfTruck = (EditText) view.findViewById(R.id.et_nmbr_of_truck_id);
ll = (LinearLayout) view.findViewById(R.id.ll4);
}
}
@Override
public View getView(final int position, View convertView, final ViewGroup parent) {
final Viewholder holder;
typeTruckPogo = list.get(position);
if(convertView==null){
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.single_row_for_type_of_truck, parent, false);
holder = new Viewholder(convertView);
convertView.setTag(holder);
}else{
holder = (Viewholder)convertView.getTag();
}
// For position zero i have to set the text color to blue color,else dark gray color
if(position==0){
holder.name.setTextColor(context.getResources().getColor(R.color.blue_color));
holder.ll.setBackgroundColor(context.getResources().getColor(R.color.mainBackGroundColor));
}else{
holder.name.setTextColor(context.getResources().getColor(R.color.darkgray));
holder.ll.setBackgroundColor(context.getResources().getColor(R.color.mainBackGroundColor));
}
// setting the name on the textview
holder.name.setText(list.get(position).getTypeOfTruckName());
//setting the tag on edittext
holder.nmbrOfTruck.setTag(position);
//setting the viewholder position
holder.ref = position;
holder.nmbrOfTruck.setVisibility(View.INVISIBLE);
// Setting the User Input at specified Position
/*Iterator myVeryOwnIterator = truckHashMap.keySet().iterator();
while(myVeryOwnIterator.hasNext()) {
String key=(String)myVeryOwnIterator.next();
String value=(String)truckHashMap.get(key);
}*/
// if user write on editText save the input by the user in specified position
//truckHashMap is hashmap where I saving the position as a key and value as the user Input
holder.nmbrOfTruck.setText(arrTemp[position]);
holder.nmbrOfTruck.addTextChangedListener(new TextWatcher() {
public void onTextChanged(CharSequence s, int start,
int before, int count) {
}
public void beforeTextChanged(CharSequence s, int start,
int count, int after) {
// TODO Auto-generated method stub
}
public void afterTextChanged(Editable s) {
arrTemp[holder.ref] = s.toString();
}
});
// holder.nmbrOfTruck.setText(truckHashMap.get(position) + "");
Log.e("hsh",""+truckHashMap.get(position)+"");
/*
below i am facing the scrolling issue, when i scroll then alpha value is not behaving properly it seldom changing.
*/
// user can press and unpress the single row,if he press single row then edittext is visiable and
// if EditText is visiable then set TextView Color to white and Background color to dark Gray
// if position 0 is selected then make other position as Unclickable and make alpha to other position to .2f
//if other than 0 position is selected ,make 0 position row as unclickable and faint in color(alpha to .2f )for position zero.
// Here i am binding the data if editText is visiable or not.
if (isEditTextVisible[position]){
//holder.nmbrOfTruck.setText(arrTemp[position]);
Log.e("hshInsid", "" + truckHashMap.get(position) + "");
Log.e("position", "" + position + "" + isEditTextVisible[position]);
// if EditText is Visiable for specified position when user click make visiable for binding the data
// because getView Recycle while scrolling so setting the visibility for specified position
holder.nmbrOfTruck.setVisibility(View.VISIBLE);
// comparing zero index row of editText is visiable,if user selected zero index row then set textcolor to white and background color to dark gray
if(list.get(position).getTypeOfTruckName().equalsIgnoreCase("BEST AVAILABLE")){
// this is zero index item
holder.ll.setEnabled(true);
holder.ll.setAlpha(1);
holder.ll.setBackgroundColor(context.getResources().getColor(R.color.darkgray));
holder.name.setTextColor(context.getResources().getColor(R.color.white));
} else {
// this is other item then zero index
holder.ll.setEnabled(true);
holder.ll.setAlpha(1);
holder.ll.setBackgroundColor(context.getResources().getColor(R.color.darkgray));
holder.name.setTextColor(context.getResources().getColor(R.color.white));
}
}else {
// Binding the invisiable editText visibility.
arrTemp[holder.ref] = null;
holder.nmbrOfTruck.setVisibility(View.INVISIBLE);
// truckHashMap.put(position, "");
// default color of 0 row ,textView blue in color and background is light Gray(mainBackGroundColor)
if(list.get(position).getTypeOfTruckName().equalsIgnoreCase("BEST AVAILABLE")){
if(counter==0){
holder.ll.setEnabled(true);
holder.ll.setAlpha(1);
holder.ll.setBackgroundColor(context.getResources().getColor(R.color.mainBackGroundColor));
// holder.name.setText(list.get(position).getTypeOfTruckName());
holder.name.setTextColor(context.getResources().getColor(R.color.blue_color));
}else{
holder.ll.setEnabled(false);
holder.ll.setAlpha(.2f);
holder.ll.setBackgroundColor(context.getResources().getColor(R.color.mainBackGroundColor));
holder.name.setTextColor(context.getResources().getColor(R.color.blue_color));
}
}else{
// default color other than 0 row ,textView blue in color and background is light Gray(mainBackGroundColor)
if(bestAvailiableCounter!=0){
for (int j = 1; j < parent.getChildCount(); j++) {
parent.getChildAt(j).setAlpha(.2f);
parent.getChildAt(j).setEnabled(false);
holder.ll.setBackgroundColor(context.getResources().getColor(R.color.mainBackGroundColor));
holder.name.setTextColor(context.getResources().getColor(R.color.darkgray));
// holder.name.setText(list.get(position).getTypeOfTruckName());
}
}else {
for (int j = 1; j < parent.getChildCount(); j++) {
parent.getChildAt(j).setAlpha(1);
parent.getChildAt(j).setEnabled(true);
holder.ll.setBackgroundColor(context.getResources().getColor(R.color.mainBackGroundColor));
holder.name.setTextColor(context.getResources().getColor(R.color.darkgray));
// holder.name.setText(list.get(position).getTypeOfTruckName());
}
}
}
}
holder.ll.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (holder.nmbrOfTruck.isShown()) {
holder.nmbrOfTruck.setVisibility(View.INVISIBLE);
isEditTextVisible[position] = false;
typeTruckPogo.setIsUserTapped(false);
typeTruckPogo.setPosition(position);
} else {
holder.nmbrOfTruck.setVisibility(View.VISIBLE);
isEditTextVisible[position] = true;
typeTruckPogo.setIsUserTapped(true);
typeTruckPogo.setPosition(position);
if(position==0){
holder.name.setTextColor(context.getResources().getColor(R.color.white));
holder.ll.setBackgroundColor(context.getResources().getColor(R.color.darkgray));
}
}
}
});
Config.colorFont(context, null, holder.name, null);
return convertView;
}
答案 0 :(得分：2)
使用此下方代码并在第一行单击时调用setRowOneClicked，以达到您的要求。
public class TypeOfTruckAdapter extends BaseAdapter{
private boolean rowOneClicked;
//your code
public void setRowOneClicked(boolean enable){
rowOneClicked = enable;
notifyDataSetChanged();
}
@Override
public View getView(final int position, View convertView, final ViewGroup parent) {
//your code goes on here
if(position!=0 && rowOneClicked){
convertView.setEnabled(false);
}else{
convertView.setEnabled(true);
}
return convertView;
}
}
答案 1 :(得分：0)
在用于填充listview的模型中设置一个布尔标志，类似于isEnabled。当用户单击第一个位置时，检查OnItemClick方法中的第一个位置，并将模型中的其他位置设置为false。然后再次点击，同样的方式为你想要的其他条件应用逻辑
listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if(position==0){
lst.get(0).isEnabled =true;
for(int i=1;i<lst.size();i++){
lst.get(position).isEnabled =false;
}
}else{
lst.get(0).isEnabled =false;
}
}
if (!lst.get(position).isEnabled) {
return;
}else{
//your code
}
//In end set all Enabled
for(int i=0;i<lst.size();i++){
lst.get(position).isEnabled =true;
}
我希望这有点清楚
答案 2 :(得分：0)
一个简单的解决方案是分别创建第一个元素，（使用单独的行）。列表视图中的其余元素。通过这种方式，可以非常轻松地启用/禁用单击项目。