android:获取联系人信息（姓名和电话）

由于之前people过时，就不能使用这样的方法了，就采用下面的方法：

 public void getUserInfo(){       Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);       while(cursor.moveToNext()){           String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));           String name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));           Log.d(TAG    , "Name is : "+name);           int isHas = Integer.parseInt(cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)));           if(isHas>0){               Cursor c = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null,                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID+ " = " + id,null,null);               while(c.moveToNext()){                   String number = c.getString(c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));                   Log.d(TAG    , "Number is : "+number);               }               c.close();           }       }       cursor.close();}

有时候也会遇到根据号码找联系人的情况，及时提示用户。

private String getNameFromPhone(String number) {        String name = null;        String[] projection = { ContactsContract.PhoneLookup.DISPLAY_NAME,                ContactsContract.CommonDataKinds.Phone.NUMBER };        Cursor cursor = this.getContentResolver().query(                ContactsContract.CommonDataKinds.Phone.CONTENT_URI,                projection, // Which columns to return.                ContactsContract.CommonDataKinds.Phone.NUMBER + " = '"                        + number + "'", // WHERE clause.                null, // WHERE clause value substitution                null); // Sort order.        if (cursor == null) {            Log.d(TAG, "getPeople null");            return null;        }        Log.d(TAG, "getPeople cursor.getCount() = " + cursor.getCount());        for (int i = 0; i < cursor.getCount(); i++) {            cursor.moveToPosition(i);            int nameFieldColumnIndex = cursor                    .getColumnIndex(ContactsContract.PhoneLookup.DISPLAY_NAME);            name = cursor.getString(nameFieldColumnIndex);            Log.i(TAG, "" + name + " .... " + nameFieldColumnIndex);                                }        cursor.close();        return name;            }