Android 在OnCreate中未正确设置全局变量
我试图从用户的电话中提取联系人，然后将这些联系人与我在解析后端中的电话号码进行匹配，然后在自定义列表视图中显示匹配项。我已经成功地完成了几乎所有的事情，但是我很难正确设置全局变量mBinderPhoneNumber。无论出于何种原因，根据logcat，变量首先显示为null，直到后来才获得正确的值，即使我在使用变量之前正确设置了该变量。Android 在OnCreate中未正确设置全局变量,android,android-activity,android-runonuithread,Android,Android Activity,Android Runonuithread,我试图从用户的电话中提取联系人，然后将这些联系人与我在解析后端中的电话号码进行匹配，然后在自定义列表视图中显示匹配项。我已经成功地完成了几乎所有的事情，但是我很难正确设置全局变量mBinderPhoneNumber。无论出于何种原因，根据logcat，变量首先显示为null，直到后来才获得正确的值，即使我在使用变量之前正确设置了该变量。 以下是logcat，它显示变量最初显示为null，然后才正确设置： 有人能帮我吗？ 活动内容如下： public class AddContacts
以下是logcat，它显示变量最初显示为null，然后才正确设置：
有人能帮我吗？
活动内容如下：
public class AddContactsActivity extends Activity {
public List mBinderPhoneNumbers;
Context context = null;
ContactsAdapter objAdapter;
ListView lv = null;
EditText edtSearch = null;
LinearLayout llContainer = null;
Button btnOK = null;
RelativeLayout rlPBContainer = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
context = this;
setContentView(R.layout.activity_add_contacts);
rlPBContainer = (RelativeLayout) findViewById(R.id.pbcontainer);
edtSearch = (EditText) findViewById(R.id.input_search);
llContainer = (LinearLayout) findViewById(R.id.data_container);
btnOK = (Button) findViewById(R.id.ok_button);
btnOK.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
getSelectedContacts();
}
});
edtSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2,
int arg3) {
// When user changed the Text
String text = edtSearch.getText().toString()
.toLowerCase(Locale.getDefault());
objAdapter.filter(text);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
// Get parse users
String [] phoneNumberList = {"DUMMY NUMBER1", "DUMMY NUMBER2", "DUMMY NUMBER3", "DUMMY NUMBER4"};
ParseQuery<ParseUser> query = ParseUser.getQuery(); {
query.whereContainedIn("username", Arrays.asList(phoneNumberList));
query.findInBackground(new FindCallback<ParseUser>() {
public void done (List<ParseUser> list, ParseException e){
if (e == null) {
mBinderPhoneNumbers = list;
Log.d("TAG", "mBinderPhoneNumbers from onCreate: " + mBinderPhoneNumbers);
} else {
// Something went wrong.
Log.e("TAG", "User query error: " + e);
}
}
});
}
addContactsInList();
}
private void getSelectedContacts() {
// TODO Auto-generated method stub
StringBuffer sb = new StringBuffer();
for (ContactObject bean : ContactsListClass.phoneList) {
if (bean.isSelected()) {
sb.append(bean.getName());
sb.append(",");
}
}
String s = sb.toString().trim();
if (TextUtils.isEmpty(s)) {
Toast.makeText(context, "Select at least one Contact",
Toast.LENGTH_SHORT).show();
} else {
s = s.substring(0, s.length() - 1);
Toast.makeText(context, "Selected Contacts: " + s,
Toast.LENGTH_SHORT).show();
}
}
private void addContactsInList() {
// TODO Auto-generated method stub
Thread thread = new Thread() {
@Override
public void run() {
showPB();
try {
Cursor phones = getContentResolver().query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null, null, null, null);
try {
ContactsListClass.phoneList.clear();
} catch (Exception e) {
}
while (phones.moveToNext()) {
Log.d("TAG", "mBinderPhoneNumbers from AddContactsInList:" + mBinderPhoneNumbers);
if (Arrays.asList(mBinderPhoneNumbers).contains(phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NORMALIZED_NUMBER)))) {
String phoneName = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NORMALIZED_NUMBER));
String phoneImage = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));
ContactObject cp = new ContactObject();
cp.setName(phoneName);
cp.setNumber(phoneNumber);
cp.setImage(phoneImage);
ContactsListClass.phoneList.add(cp);
}
}
phones.close();
lv = new ListView(context);
lv.setLayoutParams(new LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
llContainer.addView(lv);
}
});
Collections.sort(ContactsListClass.phoneList,
new Comparator<ContactObject>() {
@Override
public int compare(ContactObject lhs,
ContactObject rhs) {
return lhs.getName().compareTo(
rhs.getName());
}
});
objAdapter = new ContactsAdapter(AddContactsActivity.this,
ContactsListClass.phoneList);
lv.setAdapter(objAdapter);
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent,
View view, int position, long id) {
CheckBox chk = (CheckBox) view
.findViewById(R.id.contactcheck);
ContactObject bean = ContactsListClass.phoneList
.get(position);
if (bean.isSelected()) {
bean.setSelected(false);
chk.setChecked(false);
} else {
bean.setSelected(true);
chk.setChecked(true);
}
}
});
} catch (Exception e) {
e.printStackTrace();
}
hidePB();
}
};
thread.start();
}
void showPB() {
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
rlPBContainer.setVisibility(View.VISIBLE);
edtSearch.setVisibility(View.GONE);
btnOK.setVisibility(View.GONE);
}
});
}
void hidePB() {
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
rlPBContainer.setVisibility(View.GONE);
edtSearch.setVisibility(View.VISIBLE);
btnOK.setVisibility(View.VISIBLE);
}
});
}
}
公共类AddContactsActivity扩展活动{
公众电话号码列表；
Context=null；
接触式适配器；
ListView lv=null；
EditText-edtSearch=null；
LinearLayout llContainer=null；
按钮btnOK=null；
RelativeLayout rlPBContainer=null；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
上下文=这个；
setContentView（R.layout.activity\u add\u contacts）；
rlPBContainer=（RelativeLayout）findViewById（R.id.pbcontainer）；
edtSearch=（EditText）findViewById（R.id.input\u search）；
llContainer=（LinearLayout）findViewById（R.id.data\u容器）；
btnOK=（按钮）findviewbyd（R.id.ok_按钮）；
setOnClickListener（新的OnClickListener（）{
@凌驾
公共void onClick（视图arg0）{
//TODO自动生成的方法存根
getSelectedContacts（）；
}
});
edtSearch.addTextChangedListener（新的TextWatcher（）{
@凌驾
public void onTextChanged（字符序列cs、int arg1、int arg2、，
int arg3）{
//当用户更改文本时
String text=edtSearch.getText（）.toString（）
.toLowerCase（Locale.getDefault（））；
objAdapter.filter（文本）；
}
@凌驾
更改前的公共无效（字符序列arg0，int arg1，
整数arg2，整数arg3）{
//TODO自动生成的方法存根
}
@凌驾
public void PostTextChanged（可编辑arg0）{
//TODO自动生成的方法存根
}
});
//获取解析用户
字符串[]phoneNumberList={“虚拟数字1”、“虚拟数字2”、“虚拟数字3”、“虚拟数字4”}；
ParseQuery=ParseUser.getQuery（）{
query.whereContainedIn（“用户名”，Arrays.asList（phoneNumberList））；
findInBackground（新的FindCallback（）{
公共作废完成（列表，异常解析）{
如果（e==null）{
mBinderPhoneNumbers=列表；
Log.d（“TAG”，“onCreate中的MbinderPhoneNumber:+MbinderPhoneNumber”）；
}否则{
//出了点问题。
Log.e（“标签”，“用户查询错误：+e”）；
}
}
});
}
addContactsInList（）；
}
私有void getSelectedContacts（）{
//TODO自动生成的方法存根
StringBuffer sb=新的StringBuffer（）；
for（ContactObject bean:ContactsListClass.phoneList）{
if（bean.isSelected（））{
sb.append（bean.getName（））；
某人加上（“，”）；
}
}
字符串s=sb.toString（）.trim（）；
如果（TextUtils.isEmpty）{
Toast.makeText（上下文，“选择至少一个联系人”，
吐司。长度（短）。show（）；
}否则{
s=s.substring（0，s.length（）-1）；
Toast.makeText（上下文，“选定联系人：+s，
吐司。长度（短）。show（）；
}
}
私有void addContactsInList（）{
//TODO自动生成的方法存根
线程线程=新线程（）{
@凌驾
公开募捐{
showPB（）；
试一试{
Cursor=getContentResolver（）.query(
ContactsContract.CommonDataTypes.Phone.CONTENT\u URI，
空，空，空，空）；
试一试{
ContactsListClass.phoneList.clear（）；
}捕获（例外e）{
}
while（phones.moveToNext（））{
Log.d（“标记”，“来自AddContactsInList的MbinderPhoneNumber:”+MbinderPhoneNumber）；
if（Arrays.asList（mbinderPhoneNumber）.contains（phones.getString（phones.getColumnIndex（ContactsContract.CommonDataTypes.Phone.NORMALIZED_NUMBER）））{
String phoneName=phones.getString（phones.getColumnIndex（ContactsContract.CommonDataTypes.Phone.DISPLAY_NAME））；
String phoneNumber=phones.getString（phones.getColumnIndex（ContactsContract.CommonDataTypes.Phone.NORMALIZED_NUMBER））；
String phoneImage=phones.getString（phones.getColumnIndex（ContactsContract.CommonDataTypes.Phone.CONTACT_ID））；
ContactObject cp=新的ContactObject（）；
cp.setName（phoneName）；
cp.setNumber（电话号码）；
cp.setImage（phoneImage）；
ContactsListClass.phoneList.add（cp）；
}
}
电话。关闭（）；
lv=新列表视图（上下文）；
lv.setLayoutParams（新的LayoutParams(
LayoutParams.MATCH_父级，
public class AddContactsActivity extends Activity {
public List mBinderPhoneNumbers;
Context context = null;
ContactsAdapter objAdapter;
ListView lv = null;
EditText edtSearch = null;
LinearLayout llContainer = null;
Button btnOK = null;
RelativeLayout rlPBContainer = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
context = this;
setContentView(R.layout.activity_add_contacts);
rlPBContainer = (RelativeLayout) findViewById(R.id.pbcontainer);
edtSearch = (EditText) findViewById(R.id.input_search);
llContainer = (LinearLayout) findViewById(R.id.data_container);
btnOK = (Button) findViewById(R.id.ok_button);
btnOK.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
getSelectedContacts();
}
});
edtSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2,
int arg3) {
// When user changed the Text
String text = edtSearch.getText().toString()
.toLowerCase(Locale.getDefault());
objAdapter.filter(text);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
// Get parse users
String [] phoneNumberList = {"DUMMY NUMBER1", "DUMMY NUMBER2", "DUMMY NUMBER3", "DUMMY NUMBER4"};
ParseQuery<ParseUser> query = ParseUser.getQuery(); {
query.whereContainedIn("username", Arrays.asList(phoneNumberList));
query.findInBackground(new FindCallback<ParseUser>() {
public void done (List<ParseUser> list, ParseException e){
if (e == null) {
mBinderPhoneNumbers = list;
Log.d("TAG", "mBinderPhoneNumbers from onCreate: " + mBinderPhoneNumbers);
} else {
// Something went wrong.
Log.e("TAG", "User query error: " + e);
}
}
});
}
addContactsInList();
}
private void getSelectedContacts() {
// TODO Auto-generated method stub
StringBuffer sb = new StringBuffer();
for (ContactObject bean : ContactsListClass.phoneList) {
if (bean.isSelected()) {
sb.append(bean.getName());
sb.append(",");
}
}
String s = sb.toString().trim();
if (TextUtils.isEmpty(s)) {
Toast.makeText(context, "Select at least one Contact",
Toast.LENGTH_SHORT).show();
} else {
s = s.substring(0, s.length() - 1);
Toast.makeText(context, "Selected Contacts: " + s,
Toast.LENGTH_SHORT).show();
}
}
private void addContactsInList() {
// TODO Auto-generated method stub
Thread thread = new Thread() {
@Override
public void run() {
showPB();
try {
Cursor phones = getContentResolver().query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null, null, null, null);
try {
ContactsListClass.phoneList.clear();
} catch (Exception e) {
}
while (phones.moveToNext()) {
Log.d("TAG", "mBinderPhoneNumbers from AddContactsInList:" + mBinderPhoneNumbers);
if (Arrays.asList(mBinderPhoneNumbers).contains(phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NORMALIZED_NUMBER)))) {
String phoneName = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NORMALIZED_NUMBER));
String phoneImage = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));
ContactObject cp = new ContactObject();
cp.setName(phoneName);
cp.setNumber(phoneNumber);
cp.setImage(phoneImage);
ContactsListClass.phoneList.add(cp);
}
}
phones.close();
lv = new ListView(context);
lv.setLayoutParams(new LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
llContainer.addView(lv);
}
});
Collections.sort(ContactsListClass.phoneList,
new Comparator<ContactObject>() {
@Override
public int compare(ContactObject lhs,
ContactObject rhs) {
return lhs.getName().compareTo(
rhs.getName());
}
});
objAdapter = new ContactsAdapter(AddContactsActivity.this,
ContactsListClass.phoneList);
lv.setAdapter(objAdapter);
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent,
View view, int position, long id) {
CheckBox chk = (CheckBox) view
.findViewById(R.id.contactcheck);
ContactObject bean = ContactsListClass.phoneList
.get(position);
if (bean.isSelected()) {
bean.setSelected(false);
chk.setChecked(false);
} else {
bean.setSelected(true);
chk.setChecked(true);
}
}
});
} catch (Exception e) {
e.printStackTrace();
}
hidePB();
}
};
thread.start();
}
void showPB() {
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
rlPBContainer.setVisibility(View.VISIBLE);
edtSearch.setVisibility(View.GONE);
btnOK.setVisibility(View.GONE);
}
});
}
void hidePB() {
runOnUiThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
rlPBContainer.setVisibility(View.GONE);
edtSearch.setVisibility(View.VISIBLE);
btnOK.setVisibility(View.VISIBLE);
}
});
}
}
query.findInBackground(new FindCallback<ParseUser>() {
public void done (List<ParseUser> list, ParseException e){
if (e == null) {
mBinderPhoneNumbers = list;
addContactsInList();// call here
Log.d("TAG", "mBinderPhoneNumbers from onCreate: " + mBinderPhoneNumbers);
} else {
// Something went wrong.
Log.e("TAG", "User query error: " + e);
}
}
});
query.findInBackground(new FindCallback<ParseUser>() {
public void done (List<ParseUser> list, ParseException e){
if (e == null) {
mBinderPhoneNumbers = list;
addContactsInList();
.....
}
}
});