Laboratoriya ishi – 19. Mavzu: Firebase ma'lumotlar bazasidan foydalanish Ishning maqsadi: Firebase ma'lumotlar bazasidan foydalanish. Nazariy qism

EditText
android:id="@+id/EditTextEmail"
android:layout_height="wrap_content"
android:hint="Введите свой e-mail"
android:inputType="textEmailAddress"
android:layout_width="fill_parent">
EditText>
Keyinchalik, biz Spinner deb nomlangan elementni yaratamiz, bu sizga maqtov, shikoyat, taklif yoki xato hisoboti bo'ladimi, yuboriladigan xabar turini tanlash imkonini beradi. Keling, bu Spinner elementini SpinnerFeedbackType deb ataymiz. Birinchidan, biz strings.xml fayliga borib, Spinner -dagi tanlov elementlari uchun javob beradigan satrlarni qo'shishimiz kerak. Strings.xml faylini oching va u erga quyidagilarni qo'shing:
Xabar turi
Maqtov
Shikoyat
Taklif
Xato haqida hisobot
Endi biz qatorli massiv yaratishimiz kerak. Res / values ​​papkasida arrays.xml nomli yangi fayl yarating va u erga quyidagilarni qo'shing:



@string/feedbacktype1
@string/feedbacktype2
@string/feedbacktype3
@string/feedbacktype4


Yuqoridagi amallarni bajargandan so'ng, biz nihoyat Spinner ni yaratishga tayyormiz:
<Spinner
android:id="@+id/SpinnerFeedbackType"
android:layout_height="wrap_content"
android:prompt="@string/feedbacktype"
android:layout_width="fill_parent"
android:entries="@array/feedbacktypelist">
Spinner>
Yaratilgan Spinner elementining pastida, siz o'z xabarining matnini kiritadigan boshqa EditText maydonini yaratishingiz kerak. Keling, ushbu elementga EditTextFeedbackBody nomini beramiz, shuningdek, kiritiladigan matn turi haqida hint o'rnatamiz. Javob matnini kiritishda foydalanuvchiga ko'proq joy va erkinlik berish uchun inputType buyrug'ini textMultiLine ga o'rnating va qatorlar sonini 5 ga o'rnating:
<EditText
android:id="@+id/EditTextFeedbackBody"
android:layout_height="wrap_content"
android:hint="Введите текст сообщения"
android:inputType="textMultiLine"
android:lines="5"
android:layout_width="fill_parent">
EditText>
Keyin, biz ilovaga CheckBox elementini qo'shishimiz kerak, bunda foydalanuvchidan uning xabari manzilga muvaffaqiyatli etib kelgani haqida xabar olishni xohlashi so'raladi.:
<CheckBox
android:id="@+id/CheckBoxResponse"
android:layout_height="wrap_content"
android:text="Желаете получить ответ?"
android:layout_width="fill_parent">
CheckBox>