Android 无法从联系人检索电子邮件

我正在编写代码以获取所选联系人的电子邮件，但当我选择联系人并返回主要活动时，我无法获取电子邮件（祝酒词未显示）

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您需要执行另一个查询以检索电子邮件地址。
检查此答案（关于电子邮件地址的底部部分），这是相同的问题：

编辑：代码示例

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
    startActivityForResult(intent, 0);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    // ADD IF STATEMENTS HERE TO CHECK the requestCode, resultCode and data

    Uri contactData = data.getData();
    Cursor c = getContentResolver().query(contactData, null, null, null, null);

    // has result
    if (c.moveToFirst()) {
        String name = c.getString(c.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
        String id = c.getString(c.getColumnIndex(ContactsContract.Contacts._ID));

        // new query for the mail
        Cursor emailCursor = getContentResolver().query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?", new String[]{id}, null);

        // has result
        if(emailCursor.moveToFirst()) {
            String email = emailCursor.getString(emailCursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
            String emailType = emailCursor.getString(emailCursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.TYPE));

            Log.d(getClass().getName(), "EMAIL = " + email);
        }

        emailCursor.close();
    }

    c.close();
}

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不要忘记在清单中添加READ_CONTACTS权限。

您需要执行另一个查询来检索电子邮件地址。
检查此答案（关于电子邮件地址的底部部分），这是相同的问题：

编辑：代码示例

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
    startActivityForResult(intent, 0);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    // ADD IF STATEMENTS HERE TO CHECK the requestCode, resultCode and data

    Uri contactData = data.getData();
    Cursor c = getContentResolver().query(contactData, null, null, null, null);

    // has result
    if (c.moveToFirst()) {
        String name = c.getString(c.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
        String id = c.getString(c.getColumnIndex(ContactsContract.Contacts._ID));

        // new query for the mail
        Cursor emailCursor = getContentResolver().query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?", new String[]{id}, null);

        // has result
        if(emailCursor.moveToFirst()) {
            String email = emailCursor.getString(emailCursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
            String emailType = emailCursor.getString(emailCursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.TYPE));

            Log.d(getClass().getName(), "EMAIL = " + email);
        }

        emailCursor.close();
    }

    c.close();
}

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别忘了在清单中添加READ_CONTACTS权限。

@lukas what is String[]{id}…你能给我完整的代码吗@lukas what is String[]{id}…你能给我完整的代码吗