旺仔：Content Provider读取手机联系人

//联系人信息
public void bt5_OnClick(View v)
{
//得到调用者
ContentResolver contentResolver=getContentResolver();
//准备URI
// ContactsContract.Contacts.CONTENT_URI;
//调用提供者
Cursor cursor=contentResolver.query(ContactsContract.Contacts.CONTENT_URI,
null, null, null, null);
//遍历数据集合
if (cursor!=null)
{
while (cursor.moveToNext())
{
long id=cursor.getLong(cursor.getColumnIndex(ContactsContract.Contacts._ID));
String sName=cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
Log.e("TAG","id="+id+"Name="+sName);
//读这个联系人的电话信息
Cursor c= getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=?", new String[]{id + ""}, null);
if (c!=null)
{
while (c.moveToNext())
{
//读电话
long Pid=c.getLong(c.getColumnIndex(ContactsContract.CommonDataKinds.Phone._ID));
String number=c.getString(c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
Log.e("TAG",sName+"电话号码="+number+"id="+Pid);
}
c.close();
}
}
Toast.makeText(MainActivity.this, "联系人的数量="+cursor.getCount(), Toast.LENGTH_SHORT).show();
}else {
Toast.makeText(MainActivity.this, "未查到联系人的信息", Toast.LENGTH_SHORT).show();
}
}