我有一个expandableListView，其中包含许多复选框。对于我的应用程序，我希望能够保存这些检查表的检查值，但是，我不能使用sharedPreferences，因为我必须使用包含布尔数组的Hashmap。这是我的代码
import java.util.HashMap;
import java.util.Map.Entry;
import android.content.Context;
import android.content.SharedPreferences;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.TextView;
public class ExpListAdapter extends BaseExpandableListAdapter {
private Context context;
//second attempt to hold the values
private SharedPreferences inventorylistcheckStateData;
private String[] parentList = { "Bedding", "Bedroom Items", "Clothing",
"Bags", "Stationary", "Documents", "Electronics", "Toiletries",
"Kitchen Items" };
// used to retain our checklist values, which for some reason dont stick.
private HashMap<Integer, boolean[]> checkState;
// multidimensional string storage is needed as you are storing values for
// two lists.
private String[][] childList = {
{ "Single/Double sheets", "Single/Double duvet + Covers",
"Pillows + Pillow cases" },
{ "Alarm Clock", "Posters", "Door Wedge", "Lamp", "Small Bin",
"Hamper Basket" },
{ "Casual Clothes, i.e T shirts, jeans, hoodies",
"Smart clothing for interviews and presentations",
"Warm Clothing (especially for newcastle)",
"'Party Clothes' clothes for going out",
"Underwear and socks", "pyjamas", "Comfortable shoes",
"Sports trainers", "Swimwear" },
{ "Everyday bag/backpack", "Gym bag", "Clear Pencil Case",
"Purse/Wallet", "Watch" },
{ "Pins", "A4 Notebooks", "Pens/Pencils", "Highlighters", "Ruler",
"Rubber", "Selotape", "Hole Puncher", "A4 Binders",
"Calculater", "Calender" },
{ "Passport photos", "Passport",
"Driving License (some form of id)", "Your NI Card",
"Insurance Documents", "NHS Medical Card",
"Insurance documents", "Letter of Acceptance",
"Scholarship/bursury letters",
"Rail Card(if you have one)", "C.V" },
{ "Laptop+Charger", "Mouse", "Phone + Charger", "Ethernet Cables",
"USB memory stick", "Headphones", "Digital Camera",
"MP3 Player" },
{ "Shampoo", "Razors", "Toothbrush and toothpaste",
"Make-up/remover", "HairBrush",
"Condoms or other protection!!!" },
{ "Frying Pan", "Wok", "Tin Opener", "Bottle opener", "Glasses",
"Cheese Grater", "Knives", "Chopping Board", "Scissors",
"Tea Towels", "Tupperware", "Cling Film", "Cutlery",
"Crockery" } };
public ExpListAdapter(Context context) {
this.context = context;
// initialised check
checkState = new HashMap<Integer, boolean[]>();
}
public Object getChild(int groupPosition, int childPosition) {
return childPosition;
}
//
public long getChildId(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return 0;
}
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final int mGroupPosition = groupPosition;
final int mChildPosition = childPosition;
CheckBox checkbox = new CheckBox(context);
checkbox.setOnCheckedChangeListener(null);
if (checkState.containsKey(mGroupPosition)) {
boolean getChecked[] = checkState.get(mGroupPosition);
checkbox.setChecked(getChecked[mChildPosition]);
} else {
boolean getChecked[] = new boolean[getChildrenCount(mGroupPosition)];
checkState.put(mGroupPosition, getChecked);
checkbox.setChecked(false);
}
checkbox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
if (isChecked) {
boolean getChecked[] = checkState.get(mGroupPosition);
getChecked[mChildPosition] = isChecked;
checkState.put(mGroupPosition, getChecked);
} else {
boolean getChecked[] = checkState.get(mGroupPosition);
getChecked[mChildPosition] = isChecked;
checkState.put(mGroupPosition, getChecked);
}
}
});
checkbox.setText(childList[groupPosition][childPosition]);
checkbox.setPadding(40, 0, 0, 0);
//SharedPreferences.Editor editor = inventorylistcheckStateData.edit();
//for (Entry<Integer, boolean[]> entry: checkState.entrySet()) editor.putBoolean(entry.getKey().toString(), entry.getValue());
return checkbox;
}
// returns the number of children you are having.
public int getChildrenCount(int groupPosition) {
// TODO Auto-generated method stub
return childList[groupPosition].length;
}
// returns the number of parents you have.
public Object getGroup(int groupPosition) {
return groupPosition;
}
public int getGroupCount() {
// TODO Auto-generated method stub
return parentList.length;
}
public long getGroupId(int groupPosition) {
// TODO Auto-generated method stub
return groupPosition;
}
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
TextView text = new TextView(context);
text.setText(parentList[groupPosition]);
text.setPadding(40, 0, 0, 0);
return text;
}
public boolean hasStableIds() {
// TODO Auto-generated method stub
return false;
}
public boolean isChildSelectable(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return true;
}
}
无论如何我可以保存清单，还是我必须改变一切？
答案 0 :(得分：0)
SharedPreferences keyValues = getContext().getSharedPreferences("Your_Shared_Prefs"), Context.MODE_PRIVATE);
SharedPreferences.Editor keyValuesEditor = keyValues.edit();
for (String s : checklist.keySet()) {
keyValuesEditor.putString(s, checklist.get(s));
}
keyValuesEditor.commit();