如何以编程方式从 Android 获取 whatsapp 联系人?
How to get whatsapp Contacts from Android Programmatically?
我必须尝试从 phone 获取 WhatsApp 联系人,我得到了 WhatsApp 联系人的总数,但是从 RawContacts
如何获取我不知道的 WhatsApp 号码和姓名。我试图找到解决方案,但无法获得确切的解决方案。请帮助我。
我把我的代码放在下面。
ContentResolver cr = context.getContentResolver();
Cursor c = cr.query(
ContactsContract.RawContacts.CONTENT_URI,
new String[] { ContactsContract.RawContacts.CONTACT_ID, ContactsContract.RawContacts.DISPLAY_NAME_PRIMARY },
ContactsContract.RawContacts.ACCOUNT_TYPE + "= ?",
new String[] { "com.whatsapp" },
null);
ArrayList<String> myWhatsappContacts = new ArrayList<>();
String projection[] = { ContactsContract.CommonDataKinds.Phone.NUMBER };
if(c != null) {
if (c.getCount() > 0) {
while (c.moveToNext()) {
String whatsappContactId = c.getString(c.getColumnIndex(ContactsContract.RawContacts.Data._ID));
Cursor dataCursor = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
projection,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
new String[]{whatsappContactId}, null);
// You can also read RawContacts.CONTACT_ID to read the
// ContactsContract.Contacts table or any of the other related ones.
String number = dataCursor.getString(dataCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NORMALIZED_NUMBER));
myWhatsappContacts.add(number);
}
}
}
showLogI(TAG, " WhatsApp contact size : " + myWhatsappContacts.size());
我找到了我的问题的解决方案,所以我把我的答案放在这里..可能对其他人有用..
首先阅读并尝试理解 Android 联系人数据存储的图表,然后很容易理解整个联系流程。片段下方给出了三层数据模型图。
代码片段
//This class provides applications access to the content model.
ContentResolver cr = context.getContentResolver();
//RowContacts for filter Account Types
Cursor contactCursor = cr.query(
ContactsContract.RawContacts.CONTENT_URI,
new String[]{ContactsContract.RawContacts._ID,
ContactsContract.RawContacts.CONTACT_ID},
ContactsContract.RawContacts.ACCOUNT_TYPE + "= ?",
new String[]{"com.whatsapp"},
null);
//ArrayList for Store Whatsapp Contact
ArrayList<String> myWhatsappContacts = new ArrayList<>();
if (contactCursor != null) {
if (contactCursor.getCount() > 0) {
if (contactCursor.moveToFirst()) {
do {
//whatsappContactId for get Number,Name,Id ect... from ContactsContract.CommonDataKinds.Phone
String whatsappContactId = contactCursor.getString(contactCursor.getColumnIndex(ContactsContract.RawContacts.CONTACT_ID));
if (whatsappContactId != null) {
//Get Data from ContactsContract.CommonDataKinds.Phone of Specific CONTACT_ID
Cursor whatsAppContactCursor = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
new String[]{ContactsContract.CommonDataKinds.Phone.CONTACT_ID,
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME},
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
new String[]{whatsappContactId}, null);
if (whatsAppContactCursor != null) {
whatsAppContactCursor.moveToFirst();
String id = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));
String name = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String number = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
whatsAppContactCursor.close();
//Add Number to ArrayList
myWhatsappContacts.add(number);
showLogI(TAG, " WhatsApp contact id : " + id);
showLogI(TAG, " WhatsApp contact name : " + name);
showLogI(TAG, " WhatsApp contact number : " + number);
}
}
} while (contactCursor.moveToNext());
contactCursor.close();
}
}
}
showLogI(TAG, " WhatsApp contact size : " + myWhatsappContacts.size());
此处显示Android联系数据存储图
我必须尝试从 phone 获取 WhatsApp 联系人,我得到了 WhatsApp 联系人的总数,但是从 RawContacts
如何获取我不知道的 WhatsApp 号码和姓名。我试图找到解决方案,但无法获得确切的解决方案。请帮助我。
我把我的代码放在下面。
ContentResolver cr = context.getContentResolver();
Cursor c = cr.query(
ContactsContract.RawContacts.CONTENT_URI,
new String[] { ContactsContract.RawContacts.CONTACT_ID, ContactsContract.RawContacts.DISPLAY_NAME_PRIMARY },
ContactsContract.RawContacts.ACCOUNT_TYPE + "= ?",
new String[] { "com.whatsapp" },
null);
ArrayList<String> myWhatsappContacts = new ArrayList<>();
String projection[] = { ContactsContract.CommonDataKinds.Phone.NUMBER };
if(c != null) {
if (c.getCount() > 0) {
while (c.moveToNext()) {
String whatsappContactId = c.getString(c.getColumnIndex(ContactsContract.RawContacts.Data._ID));
Cursor dataCursor = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
projection,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
new String[]{whatsappContactId}, null);
// You can also read RawContacts.CONTACT_ID to read the
// ContactsContract.Contacts table or any of the other related ones.
String number = dataCursor.getString(dataCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NORMALIZED_NUMBER));
myWhatsappContacts.add(number);
}
}
}
showLogI(TAG, " WhatsApp contact size : " + myWhatsappContacts.size());
我找到了我的问题的解决方案,所以我把我的答案放在这里..可能对其他人有用..
首先阅读并尝试理解 Android 联系人数据存储的图表,然后很容易理解整个联系流程。片段下方给出了三层数据模型图。
代码片段
//This class provides applications access to the content model.
ContentResolver cr = context.getContentResolver();
//RowContacts for filter Account Types
Cursor contactCursor = cr.query(
ContactsContract.RawContacts.CONTENT_URI,
new String[]{ContactsContract.RawContacts._ID,
ContactsContract.RawContacts.CONTACT_ID},
ContactsContract.RawContacts.ACCOUNT_TYPE + "= ?",
new String[]{"com.whatsapp"},
null);
//ArrayList for Store Whatsapp Contact
ArrayList<String> myWhatsappContacts = new ArrayList<>();
if (contactCursor != null) {
if (contactCursor.getCount() > 0) {
if (contactCursor.moveToFirst()) {
do {
//whatsappContactId for get Number,Name,Id ect... from ContactsContract.CommonDataKinds.Phone
String whatsappContactId = contactCursor.getString(contactCursor.getColumnIndex(ContactsContract.RawContacts.CONTACT_ID));
if (whatsappContactId != null) {
//Get Data from ContactsContract.CommonDataKinds.Phone of Specific CONTACT_ID
Cursor whatsAppContactCursor = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
new String[]{ContactsContract.CommonDataKinds.Phone.CONTACT_ID,
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME},
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
new String[]{whatsappContactId}, null);
if (whatsAppContactCursor != null) {
whatsAppContactCursor.moveToFirst();
String id = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));
String name = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String number = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
whatsAppContactCursor.close();
//Add Number to ArrayList
myWhatsappContacts.add(number);
showLogI(TAG, " WhatsApp contact id : " + id);
showLogI(TAG, " WhatsApp contact name : " + name);
showLogI(TAG, " WhatsApp contact number : " + number);
}
}
} while (contactCursor.moveToNext());
contactCursor.close();
}
}
}
showLogI(TAG, " WhatsApp contact size : " + myWhatsappContacts.size());
此处显示Android联系数据存储图