android黑屏时获得电话联系

Question

I'm using this code to get all contacts from phone but when I use it that cause of black screen.

Thread :

        Thread getAllContacts = new Thread () {
            @Override
            public void run () {
                runOnUiThread ( new Runnable () {
                    @Override
                    public void run () {
                        getContacts ( getContentResolver () );
                    }
                } );
            }
        };
        getAllContacts.start ();

And this below code is my getContacts method, I can not update it to have fast way to get contacts:

public void getContacts(ContentResolver cr){
    Cursor phones = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);

    while (phones.moveToNext())
    {
        String id          = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone._ID));
        String name        = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
        String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
        Bitmap photo       = G.getContactPhoto ( phoneNumber, getContentResolver () );

        ContactListStructure item = new ContactListStructure();
        String phone_number = phoneNumber.replaceAll("\\s+","").trim ().replace("+98", "0");
        int check_mobile = phone_number.indexOf ( "09" );
        if( check_mobile != -1){
            item.id = Long.parseLong ( id );
            item.name = name;
            item.mobile = phone_number;
            item.photo = photo;
            item.checked = false;
            G.contact_item.add ( item );
            //personlst.add( new Person (item.name, item.mobile) );
        }
    }
    phones.close ();
}

Answer 1

Ok I see your problem. You are running it on the UI thread. Create an AsyncTask and run it there. When the tash is complete use the runOnUIThread method to display the contacts.