Android 在listview中选中复选框以选择多个联系人
我曾试图通过布局充气器将复选框放入listview，但我成功了，但问题是当我选择多个联系人时没有问题，但当我取消选择它时&当我向下滚动时&然后返回到取消选择的复选框时，它会自动被选中Android 在listview中选中复选框以选择多个联系人,android,listview,Android,Listview,我曾试图通过布局充气器将复选框放入listview，但我成功了，但问题是当我选择多个联系人时没有问题，但当我取消选择它时&当我向下滚动时&然后返回到取消选择的复选框时，它会自动被选中 public class Contactlist_selfActivity extends ListActivity { /** Called when the activity is first created. */ private ArrayList<contact> contact_list
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();
}
};
}
public class Contactlist\u selfActivity扩展了ListActivity{
/**在首次创建活动时调用*/
private ArrayList contact_list=null；
private ProgressDialog mProgressDialog=null；
私有contactAdapter mContactAdapter=null；
私有可运行mViewcontacts=null；
专用SparseBooleanArray mSelectedContacts=新SparseBooleanArray（）；
私有ArrayList项；
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.main）；
联系人列表=新建ArrayList（）；
this.mContactAdapter=新的contactAdapter（this，R.layout.listview，
联系人名单）；
ListView lv=getListView（）；
setListAdapter（this.mContactAdapter）；
lv.setItemsCanFocus（假）；
lv.setChoiceMode（ListView.CHOICE\u MODE\u MULTIPLE）；
// }
mViewcontacts=newrunnable（）{
@凌驾
公开募捐{
//TODO自动生成的方法存根
getContacts（）；
}
};
线程线程=新线程（null，mViewcontacts，“ContactReadBackground”）；
thread.start（）；
mProgressDialog=ProgressDialog.show（Contactlist\u selfActivity.this，
“请稍候…”，“正在检索联系人…”，正确）；
}
@抑制警告（“未使用”）
私有联系人（）{
//TODO自动生成的方法存根
试一试{
字符串[]投影=新字符串[]{
Contacts contract.Contacts.DISPLAY\u NAME，
Contacts contract.Contacts.HAS_电话号码，
Contacts contract.Contacts.\u ID}；
游标mCursor=managedQuery(
Contacts contract.Contacts.CONTENT\u URI，投影，
Contacts contract.Contacts.HAS_PHONE_NUMBER+“=？”，
新字符串[]{“1”}，
联系人contract.Contacts.DISPLAY\u NAME）；
while（mCursor.moveToNext（））{
触点=新触点（）；
String contactId=mCursor.getString（mCursor
.getColumnIndex（Contacts contract.Contacts._ID））；
contact.setContactName（mCursor.getString（mCursor
.getColumnIndex（Contacts.Contacts.DISPLAY_NAME））；
联系人列表。添加（联系人）；
}
mCursor.close（）；
runOnUiThread（returnRes）；
}捕获（例外e）{
//TODO:处理异常
Log.d（“getContacts”，例如getMessage（））；
}
}
公共类contactAdapter扩展了ArrayAdapter{
检查私有int[]的值；
公共contactAdapter（上下文，int textViewResourceId，
ArrayList项目1）{
super（上下文，textViewResourceId，items1）；
项目=项目1；
}
@凌驾
公共视图getView（最终整型位置，视图转换视图，
视图组（父级）{
//TODO自动生成的方法存根
最终整数位置=0；
//Log.i（“asd”、“getView:+getItem（位置））；
if（convertView==null）{
LayoutInflater vi=（LayoutInflater）getSystemService（Context.LAYOUT\u INFLATER\u SERVICE）；
convertView=vi.充气（R.layout.listview，父项，false）；
}
联系人=项目。获取（位置）；
isChecked=newint[items.size（）]；
如果（联系人！=null）{
最终复选框名称复选框=（复选框）convertView
.findViewById（R.id.checkBox）；
nameCheckBox.setChecked（mSelectedContacts.get（position））；
for（int i=0；iOnClickListener（）nameCheckBox.setChecked（）OnClickListener（null）OnClickListener（）nameCheckBox.setChecked（）OnClickListener（null）并用于在适当位置列出其他方法nameCheckBox.setOnClickListener（新的OnClickListener（）{ 此代码在“添加多个欠款”列表中存储所有位置并添加或删除这两个表示 快速添加，第二次删除。 并用来列出你的其他方法我找到了答案。。。。 我刚在contact类中使用了一个新变量
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;
}
公共类平面活动扩展活动{
私有ListView主ListView；
私人联系人[]联系人_read；
私有游标mCursor；
专用阵列适配器列表适配器；
/**在首次创建活动时调用*/
@凌驾
创建时的公共void（Bundle savedInstanceState）
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;
}