java - 如何使用 sdk 27​​ 在 android studio 中显示联系人电话列表

Question

我有代码java android studio来显示hp中的联系人列表，并且已获得许可，但它在sdk> 27中不起作用(空白值)有人帮助我吗？这是我的代码

    contactModelArrayList = new ArrayList<>();
    Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
            null,
            ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '1'",
            null,
            ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME+" COLLATE LOCALIZED ASC");
    while (phones.moveToNext())
    {
        String name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
        String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

        ContactModel contactModel = new ContactModel();
        contactModel.setName(name);
        contactModel.setNumber(phoneNumber);

        contactModelArrayList.add(contactModel);


        Log.d("name>>",name+" "+phoneNumber);
    }
    Log.d("phones", phones.toString());
    phones.close();

    contactAllAdapter = new ContactAllAdapter(this,contactModelArrayList);
    listView.setAdapter(contactAllAdapter);

在 logcat 中什么也没有

Answer 1

像这样创建您的MyCircleContactListData类

public class MyCircleContactListData {
    @SerializedName("name")
    @Expose
    public String name;
    @SerializedName("img_url")
    @Expose
    public String imgUrl;

    @SerializedName("mobile_no")
    @Expose
    public String mobileNumber;
}

然后创建联系人访问 Java 类，其中包含联系人列表返回类型方法 getContacts，该方法返回您的联系人列表。

 public class GetContactFromDevice {
    private static final String TAG  = "GetContactFromDevice";

    public ArrayList<MyCircleContactListData> getContacts(Context context) {
        ArrayList<MyCircleContactListData> list = new ArrayList<>();
        ContentResolver contentResolver = context.getContentResolver();
        Cursor cursor = contentResolver.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
        if (cursor.getCount() > 0) {
            while (cursor.moveToNext()) {
                String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
                if (cursor.getInt(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)) > 0) {
                    Cursor cursorInfo = contentResolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                            ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[]{id}, null);
                    InputStream inputStream = ContactsContract.Contacts.openContactPhotoInputStream(context.getContentResolver(),
                            ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, new Long(id)));

                    Uri person = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, new Long(id));
                    Uri pURI = Uri.withAppendedPath(person, ContactsContract.Contacts.Photo.CONTENT_DIRECTORY);

                    Bitmap photo = null;
                    if (inputStream != null) {
                        photo = BitmapFactory.decodeStream(inputStream);
                    }
                    while (cursorInfo.moveToNext()) {

                        MyCircleContactListData info = new MyCircleContactListData("", "", "", "", false);
                        info.name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                        info.mobileNumber = TextUtils.validatePhoneNumber(cursorInfo.getString(cursorInfo.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)));
                        info.imgUrl= pURI.toString();
                        list.add(info);

                        Log.d("GetContactFromDevice", "getContacts: " + info.name);
                        Log.d("GetContactFromDevice", "getContacts: " + info.mobileNumber);
                    }

                    cursorInfo.close();
                }
            }
            cursor.close();
        }
        return list;
    }

}

不要忘记提供联系人访问权限

<uses-permission android:name="android.permission.READ_CONTACTS" />

然后显示您的联系人列表。

GetContactFromDevice getContactFromDevice = new GetContactFromDevice();
contactAllAdapter = new ContactAllAdapter(this,getContactFromDevice.getContacts(this));
listView.setAdapter(contactAllAdapter);