以下是我的code,其实在屏幕上它没有显示我的任何接触。在模拟器我有5个联系人补充道。请告诉我该怎么做。
{
//一些code
光标CUR = getContacts();
的String []字段=新的String [] {ContactsContract.Data.DISPLAY_NAME};
SimpleCursorAdapter适配器=
新SimpleCursorAdapter(这一点,
R.layout.list_view_item_new,
CUR,
场,
新的INT [] {R.id.contactEntryText});
lv.setAdapter(适配器);
}
私人光标getContacts(){
//运行查询
开放的我们的uri = ContactsContract.Contacts.CONTENT_URI;
的String []投影=
新的String [] {ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME};
串选择= NULL;
的String [] selectionArgs两个= NULL;
字符串排序顺序= ContactsContract.Contacts.DISPLAY_NAME +
分页中局部ASC;
返回managedQuery(URI,投影,选择,selectionArgs两个,排序顺序);
}
解决方案
我已经复制并执行几乎同样的code和它的作品:
公共无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
光标CUR = getContacts();
ListView的LV = getListView();
的String []字段=新的String [] {ContactsContract.Data.DISPLAY_NAME};
SimpleCursorAdapter适配器=
新SimpleCursorAdapter(这一点,
R.layout.main,
CUR,
场,
新的INT [] {R.id.txtbox});
lv.setAdapter(适配器);
}
私人光标getContacts(){
//运行查询
开放的我们的uri = ContactsContract.Contacts.CONTENT_URI;
的String []投影=
新的String [] {ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME};
串选择= NULL;
的String [] selectionArgs两个= NULL;
字符串排序顺序= ContactsContract.Contacts.DISPLAY_NAME +
分页中局部ASC;
返回managedQuery(URI,投影,选择,selectionArgs两个,排序顺序);
}
请检查您是否在TextView中实施做错了什么?
Following is my code, actually on screen it's not showing me any contact. In emulator I have 5 contacts added. Please tell me what to do.
{
//some code
Cursor cur = getContacts();
String[] fields = new String[] {ContactsContract.Data.DISPLAY_NAME};
SimpleCursorAdapter adapter =
new SimpleCursorAdapter(this,
R.layout.list_view_item_new,
cur,
fields,
new int[] {R.id.contactEntryText});
lv.setAdapter(adapter);
}
private Cursor getContacts() {
// Run query
Uri uri = ContactsContract.Contacts.CONTENT_URI;
String[] projection =
new String[]{ ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME };
String selection = null;
String[] selectionArgs = null;
String sortOrder = ContactsContract.Contacts.DISPLAY_NAME +
" COLLATE LOCALIZED ASC";
return managedQuery(uri, projection, selection, selectionArgs, sortOrder);
}
解决方案
I have copied and executed almost the same code and it works:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Cursor cur = getContacts();
ListView lv = getListView();
String[] fields = new String[] {ContactsContract.Data.DISPLAY_NAME};
SimpleCursorAdapter adapter =
new SimpleCursorAdapter(this,
R.layout.main,
cur,
fields,
new int[] {R.id.txtbox});
lv.setAdapter(adapter);
}
private Cursor getContacts() {
// Run query
Uri uri = ContactsContract.Contacts.CONTENT_URI;
String[] projection =
new String[]{ ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME };
String selection = null;
String[] selectionArgs = null;
String sortOrder = ContactsContract.Contacts.DISPLAY_NAME +
" COLLATE LOCALIZED ASC";
return managedQuery(uri, projection, selection, selectionArgs, sortOrder);
}
Please check if you have done anything wrong in the textview implementation?