Android联系人搜索

Question

我想用simplecursoradapter实现联系人搜索。它应该表现得像标准的android联系人搜索。问题是我写不正确。现在我有了这样的内容:

private FilterQueryProvider filterQueryProvider = new FilterQueryProvider() {
    @Override
    public Cursor runQuery(CharSequence Constraint) {
        ContentResolver contentResolver = getActivity().getContentResolver();
        Uri uri = Uri.withAppendedPath(Phone.CONTENT_FILTER_URI,Uri.encode(Constraint.toString()));
        String[] projection = { BaseColumns._ID, Phone.PHOTO_URI, Phone.DISPLAY_NAME, Phone.NUMBER, Phone.TYPE };
        return contentResolver.query(
                uri,        
                projection, 
                null,       
                null,       
                "upper(" + Phone.DISPLAY_NAME + ") ASC");
    }
};

它有效，但是有一件事。当我在过滤器中输入一个字母，例如"m"，这个过滤器会给我以"5"开头的电话的联系方式。所以它将字母"转换"为数字。我不想这样。我该怎么办?

Answer 1

下面是按姓名搜索联系人的代码片段。也许你会发现少了什么:

public String getPhoneNumber(String name, Context context) {
    String ret = null;
    String selection = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME+" like'%" + name +"%'";
    String[] projection = new String[] { ContactsContract.CommonDataKinds.Phone.NUMBER};
    Cursor c = context.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
            projection, selection, null, null);
    if (c.moveToFirst()) {
        ret = c.getString(0);
    }
    c.close();
    if(ret==null)
        ret = "Unsaved";
    return ret;
    }