Uchta uchta turli manba yoki so'rovdan olingan ma'lumotlarni interfeys yoki ilovada bir vaqtning o'zida qanday ko'rsatish mumkin?

iOS dasturida uchta turli manbadan ma'lumotlarni bir vaqtning o'zida ko'rsatish uchun ko'pincha natijalarni asinxron tarzda birlashtirish yondashuvi qo'llaniladi. Masalan, barcha uchta so'rovning yakunlanishini kuzatish uchun DispatchGroup dan foydalanish mumkin va so'ngra interfeysni yangilash:

let group = DispatchGroup()
var data1: DataType1?
var data2: DataType2?
var data3: DataType3?

group.enter()
fetchDataFromSource1 { result in
    data1 = result
    group.leave()
}

group.enter()
fetchDataFromSource2 { result in
    data2 = result
    group.leave()
}

group.enter()
fetchDataFromSource3 { result in
    data3 = result
    group.leave()
}

group.notify(queue: .main) {
    // Barcha ma'lumotlar olindi, UI yangilanmoqda
    updateUI(data1: data1, data2: data2, data3: data3)
}

Shuningdek, Swiftning yangi versiyalarida Combine yoki async/await ishlatish qulayroq bo'lishi mumkin.