读取联系人信息

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读取联系人信息，用了android自带的PEOPLE.CONTENT_URI，provider.Contacts.CONTENT_URI都不好用，获取不到联系人号码，随后找到Phones.CONTENT_URI才顺利显示。
ContentResolver contentResolver = this.getContentResolver();

Cursor cursor = contentResolver.query(Phones.CONTENT_URI, null,null,
null, null);

Log.e("ray", "" + cursor.getCount());

if (cursor.moveToFirst())
{

long start = System.currentTimeMillis();

do
{

int nameIndex = cursor.getColumnIndex(Phones.DISPLAY_NAME);

int numberIndex = cursor.getColumnIndex(Phones.NUMBER);

String contactName = cursor.getString(nameIndex);

String contactNumber = cursor.getString(numberIndex);

Log.e("ray", "contactName" + contactName + "contactNumber"
+ contactNumber);

}
while (cursor.moveToNext());

long end = System.currentTimeMillis();

           Log.e("ray", "time " + (end - start));
       }
       cursor.close();

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