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中显示联系人的名字,我想只要从设备电话簿中的联系人,并在旋转器上,代码显示出来:安卓:在微调
// Form an array specifying which columns to return.
String[] PROJECTION = new String[] {
People._ID, People.NAME
};
// Get the base URI for the People table in the Contacts content provider.
Uri contacts = People.CONTENT_URI;
Spinner contactsSpinner = (Spinner) findViewById(R.id.recipient_names);
// Make the query.
Cursor contactsCursor = managedQuery(contacts,
PROJECTION, // Which columns to return
null, // Which rows to return (all rows)
null, // Selection arguments (none)
// Put the results in ascending order by name
People.NAME + " ASC");
Log.e("EE", String.valueOf(contactsCursor.getCount()));
SimpleCursorAdapter sca = new SimpleCursorAdapter(
this, android.R.layout.simple_spinner_item,
contactsCursor, new String[] {People.NAME}, new int[] {android.R.id.text1}
);
Log.e("EE", String.valueOf(sca.getCount()));
sca.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
contactsSpinner.setAdapter(sca);
编译和运行正常,只是.. Log.e()调用显示为1,我认为这意味着联系人实际上已成功检索到,但是Spinner是空的......任何人都可以告诉我我做错了吗?