关于Contacts的那点事儿

最新推荐文章于 2024-05-03 19:31:08 发布

iteye_15968

最新推荐文章于 2024-05-03 19:31:08 发布

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文章标签： C C++ C# Android 数据结构

本文通过实例代码展示了如何查询和解析Android系统中Contacts应用的数据结构。通过对Contacts.CONTENT_URI的查询，获取联系人的基本信息，并进一步查询联系人数据表，获取包括电话号码、电子邮件地址等在内的详细信息。

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很久没有更新博客了。

一直没整明白，Android中的Contacts是如何组织数据的，于是今天折腾了一下Contacts的结构。

留底以备以后参考。

private String testOne() throws Exception { final Cursor people = getContentResolver().query(Contacts.CONTENT_URI, null, null, null, null); StringBuilder sb = new StringBuilder(); while(people.moveToNext()) { long id = people.getLong(people.getColumnIndex(Contacts._ID)); String name = people.getString(people.getColumnIndex(PhoneLookup.DISPLAY_NAME)); if(id==1) { sb.append("---id is "+id+",name is "+name+"\n"); //String IsPhone = people.getString(people.getColumnIndex(Contacts.HAS_PHONE_NUMBER)); //if( (Integer.parseInt(IsPhone) > 0) ){} Cursor c = null; // Cursor c = getContentResolver().query(CommonDataKinds.Phone.CONTENT_URI, // null,CommonDataKinds.Phone.CONTACT_ID+"="+id,null,null); //while(c.moveToNext()){ // long i = c.getLong(c.getColumnIndex(Contacts._ID)); // String num=c.getString(c.getColumnIndex(CommonDataKinds.Phone.NUMBER)); // sb.append("phone=id:"+i+", n:"+num+"\n"); //} //c.close(); c=getContentResolver().query(Data.CONTENT_URI, null, Data.CONTACT_ID+"="+id, null, null); while(c.moveToNext()){ long j=c.getLong(c.getColumnIndex(Contacts._ID)); String typ=c.getString(c.getColumnIndex(Data.MIMETYPE)); String str=""; if(typ.equals(CommonDataKinds.Im.CONTENT_ITEM_TYPE)){ str=c.getString(c.getColumnIndex(CommonDataKinds.Im.PROTOCOL))+","; str+=c.getString(c.getColumnIndex(CommonDataKinds.Im.DATA)); } else if(typ.equals(CommonDataKinds.Email.CONTENT_ITEM_TYPE)){ str=c.getString(c.getColumnIndex(CommonDataKinds.Email.TYPE))+","; str+=c.getString(c.getColumnIndex(CommonDataKinds.Email.DATA)); } else if(typ.equals(CommonDataKinds.Note.CONTENT_ITEM_TYPE)){ str=c.getString(c.getColumnIndex(CommonDataKinds.Email.DATA)); } else if(typ.equals(CommonDataKinds.Phone.CONTENT_ITEM_TYPE)){ str=c.getString(c.getColumnIndex(CommonDataKinds.Phone.TYPE))+","; str+=c.getString(c.getColumnIndex(CommonDataKinds.Phone.DATA)); } else if(typ.equals(CommonDataKinds.Photo.CONTENT_ITEM_TYPE)){ byte[] buf = c.getBlob(c.getColumnIndex(CommonDataKinds.Photo.PHOTO)); str="len is "+buf.length; } else if(typ.equals(CommonDataKinds.Nickname.CONTENT_ITEM_TYPE)){ str=c.getString(c.getColumnIndex(CommonDataKinds.Nickname.TYPE))+","; str+=c.getString(c.getColumnIndex(CommonDataKinds.Nickname.DATA)); } sb.append("data=id"+j+", t:"+typ+"\n, n:"+str+"\n"); } c.close(); } } people.close(); return sb.toString(); }