我曾尝试通过布局充气器将listview放入listview,但我得到了成功,但问题是当我选择多个联系人时没有问题但是当我取消选择它时&当我向下滚动时然后返回到取消选中的复选框,它会自动选中...
public class Contactlist_selfActivity extends ListActivity {
/** Called when the activity is first created. */
private ArrayList<contact> contact_list = null;
private ProgressDialog mProgressDialog = null;
private contactAdapter mContactAdapter = null;
private Runnable mViewcontacts = null;
private SparseBooleanArray mSelectedContacts = new SparseBooleanArray();
private ArrayList<contact> items;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
contact_list = new ArrayList<contact>();
this.mContactAdapter = new contactAdapter(this, R.layout.listview,
contact_list);
ListView lv = getListView();
setListAdapter(this.mContactAdapter);
lv.setItemsCanFocus(false);
lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
// }
mViewcontacts = new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
getContacts();
}
};
Thread thread = new Thread(null, mViewcontacts, "ContactReadBackground");
thread.start();
mProgressDialog = ProgressDialog.show(Contactlist_selfActivity.this,
"Please Wait...", "Retriving Contacts...", true);
}
@SuppressWarnings("unused")
private void getContacts() {
// TODO Auto-generated method stub
try {
String[] projection = new String[] {
ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.Contacts.HAS_PHONE_NUMBER,
ContactsContract.Contacts._ID };
Cursor mCursor = managedQuery(
ContactsContract.Contacts.CONTENT_URI, projection,
ContactsContract.Contacts.HAS_PHONE_NUMBER + "=?",
new String[] { "1" },
ContactsContract.Contacts.DISPLAY_NAME);
while (mCursor.moveToNext()) {
contact contact = new contact();
String contactId = mCursor.getString(mCursor
.getColumnIndex(ContactsContract.Contacts._ID));
contact.setContactName(mCursor.getString(mCursor
.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)));
contact_list.add(contact);
}
mCursor.close();
runOnUiThread(returnRes);
} catch (Exception e) {
// TODO: handle exception
Log.d("getContacts", e.getMessage());
}
}
public class contactAdapter extends ArrayAdapter<contact> {
private int[] isChecked;
public contactAdapter(Context context, int textViewResourceId,
ArrayList<contact> items1) {
super(context, textViewResourceId, items1);
items = items1;
}
@Override
public View getView(final int position, View convertView,
ViewGroup parent) {
// TODO Auto-generated method stub
final int position_clicked = 0;
// Log.i("asd", "getView :" + getItem(position));
if (convertView == null) {
LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = vi.inflate(R.layout.listview, parent, false);
}
contact contacts = items.get(position);
isChecked = new int[items.size()];
if (contacts != null) {
final CheckBox nameCheckBox = (CheckBox) convertView
.findViewById(R.id.checkBox);
nameCheckBox.setChecked(mSelectedContacts.get(position));
for (int i = 0; i < isChecked.length; i++) {
}
if (nameCheckBox != null) {
nameCheckBox.setText(contacts.getContactName());
}
nameCheckBox.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
isChecked[position_clicked] = position;
Log.d("position", String.valueOf(position));
}
});
}
return convertView;
}
}
private Runnable returnRes = new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
if (mProgressDialog.isShowing())
mProgressDialog.dismiss();
mContactAdapter.notifyDataSetChanged();
}
};
}
答案 0 :(得分:11)
我找到了答案.... 我刚刚在接触类中采用了一个新变量......
public class PlanetsActivity extends Activity {
private ListView mainListView;
private Contact[] contact_read;
private Cursor mCursor;
private ArrayAdapter<Contact> listAdapter;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Find the ListView resource.
mainListView = (ListView) findViewById(R.id.mainListView);
mainListView
.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View item,
int position, long id) {
Contact planet = listAdapter.getItem(position);
planet.toggleChecked();
ContactViewHolder viewHolder = (ContactViewHolder) item
.getTag();
viewHolder.getCheckBox().setChecked(planet.isChecked());
}
});
// Throw Query and fetch the contacts.
String[] projection = new String[] { Contacts.HAS_PHONE_NUMBER,
Contacts._ID, Contacts.DISPLAY_NAME };
mCursor = managedQuery(Contacts.CONTENT_URI, projection,
Contacts.HAS_PHONE_NUMBER + "=?", new String[] { "1" },
Contacts.DISPLAY_NAME);
if (mCursor != null) {
mCursor.moveToFirst();
contact_read = new Contact[mCursor.getCount()];
// Add Contacts to the Array
int j = 0;
do {
contact_read[j] = new Contact(mCursor.getString(mCursor
.getColumnIndex(Contacts.DISPLAY_NAME)));
j++;
} while (mCursor.moveToNext());
} else {
System.out.println("Cursor is NULL");
}
// Add Contact Class to the Arraylist
ArrayList<Contact> planetList = new ArrayList<Contact>();
planetList.addAll(Arrays.asList(contact_read));
// Set our custom array adapter as the ListView's adapter.
listAdapter = new ContactArrayAdapter(this, planetList);
mainListView.setAdapter(listAdapter);
}
/** Holds Contact data. */
@SuppressWarnings("unused")
private static class Contact {
private String name = "";
private boolean checked = false;
public Contact() {
}
public Contact(String name) {
this.name = name;
}
public Contact(String name, boolean checked) {
this.name = name;
this.checked = checked;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public boolean isChecked() {
return checked;
}
public void setChecked(boolean checked) {
this.checked = checked;
}
public String toString() {
return name;
}
public void toggleChecked() {
checked = !checked;
}
}
/** Holds child views for one row. */
@SuppressWarnings("unused")
private static class ContactViewHolder {
private CheckBox checkBox;
private TextView textView;
public ContactViewHolder() {
}
public ContactViewHolder(TextView textView, CheckBox checkBox) {
this.checkBox = checkBox;
this.textView = textView;
}
public CheckBox getCheckBox() {
return checkBox;
}
public void setCheckBox(CheckBox checkBox) {
this.checkBox = checkBox;
}
public TextView getTextView() {
return textView;
}
public void setTextView(TextView textView) {
this.textView = textView;
}
}
/** Custom adapter for displaying an array of Contact objects. */
private static class ContactArrayAdapter extends ArrayAdapter<Contact> {
private LayoutInflater inflater;
public ContactArrayAdapter(Context context, List<Contact> planetList) {
super(context, R.layout.simplerow, R.id.rowTextView, planetList);
// Cache the LayoutInflate to avoid asking for a new one each time.
inflater = LayoutInflater.from(context);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Contact to display
Contact planet = (Contact) this.getItem(position);
System.out.println(String.valueOf(position));
// The child views in each row.
CheckBox checkBox;
TextView textView;
// Create a new row view
if (convertView == null) {
convertView = inflater.inflate(R.layout.simplerow, null);
// Find the child views.
textView = (TextView) convertView
.findViewById(R.id.rowTextView);
checkBox = (CheckBox) convertView.findViewById(R.id.CheckBox01);
// Optimization: Tag the row with it's child views, so we don't
// have to
// call findViewById() later when we reuse the row.
convertView.setTag(new ContactViewHolder(textView, checkBox));
// If CheckBox is toggled, update the Contact it is tagged with.
checkBox.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
CheckBox cb = (CheckBox) v;
Contact contact = (Contact) cb.getTag();
contact.setChecked(cb.isChecked());
}
});
}
// Reuse existing row view
else {
// Because we use a ViewHolder, we avoid having to call
// findViewById().
ContactViewHolder viewHolder = (ContactViewHolder) convertView
.getTag();
checkBox = viewHolder.getCheckBox();
textView = viewHolder.getTextView();
}
// Tag the CheckBox with the Contact it is displaying, so that we
// can
// access the Contact in onClick() when the CheckBox is toggled.
checkBox.setTag(planet);
// Display Contact data
checkBox.setChecked(planet.isChecked());
textView.setText(planet.getName());
return convertView;
}
}
public Object onRetainNonConfigurationInstance() {
return contact_read;
}
}
答案 1 :(得分:2)
原因是当您在代码nameCheckBox.setChecked()
中调用OnClickListener()
时唤醒并运行其代码。在设置复选框之前设置OnClickListener(null)
我是否解决了同样的问题。
答案 2 :(得分:2)
nameCheckBox.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
isChecked[position_clicked] = position;
Log.d("position", String.valueOf(position));
}
});
此代码在商店中添加更多一个arre列表所有位置并添加或删除两者表示 快速添加,第二次删除。 并用于列出您的其他方法