my activity does not sync with its layout xml. I really dont know why the coding seems okay. Im so sorry. Im a beginner dev, i really need to finish my project asap.
This is my activity using Kotlin in android studio
package com.pkndegwa.mycarmaintenance
import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import androidx.work.Data
import androidx.work.ExistingWorkPolicy.REPLACE
import androidx.work.OneTimeWorkRequest
import androidx.work.WorkManager
import kotlinx.android.synthetic.service_list_item.*
import com.google.android.material.snackbar.Snackbar.LENGTH_LONG
import com.google.android.material.snackbar.Snackbar.make
import com.pkndegwa.mycarmaintenance.NotifyWork.Companion.NOTIFICATION_ID
import com.pkndegwa.mycarmaintenance.NotifyWork.Companion.NOTIFICATION_WORK
import java.lang.System.currentTimeMillis
import java.text.SimpleDateFormat
import java.util.*
import java.util.Locale.getDefault
import java.util.concurrent.TimeUnit.MILLISECONDS
class AlarmActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.service_list_item)
userInterface()
}
private fun userInterface() {
setSupportActionBar(toolbar)
val titleNotification = getString(R.string.notification_title)
done_fab.setOnClickListener {
val customCalendar = Calendar.getInstance()
customCalendar.set(
date_p.year, date_p.month, date_p.dayOfMonth, time_p.hour, time_p.minute, 0
)
val customTime = customCalendar.timeInMillis
val currentTime = currentTimeMillis()
if (customTime > currentTime) {
val data = Data.Builder().putInt(NOTIFICATION_ID, 0).build()
val delay = customTime - currentTime
scheduleNotification(delay, data)
val titleNotificationSchedule = getString(R.string.notification_schedule_title)
val patternNotificationSchedule = getString(R.string.notification_schedule_pattern)
make(
service_card,
titleNotificationSchedule SimpleDateFormat(
patternNotificationSchedule, getDefault()
).format(customCalendar.time).toString(),
LENGTH_LONG
).show()
} else {
val errorNotificationSchedule = getString(R.string.notification_schedule_error)
make(service_card, errorNotificationSchedule, LENGTH_LONG).show()
}
}
}
private fun scheduleNotification(delay: Long, data: Data) {
val notificationWork = OneTimeWorkRequest.Builder(NotifyWork::class.java)
.setInitialDelay(delay, MILLISECONDS).setInputData(data).build()
val instanceWorkManager = WorkManager.getInstance(this)
instanceWorkManager.beginUniqueWork(NOTIFICATION_WORK, REPLACE, notificationWork).enqueue()
}
}
This is my layout.xml. This layout been use by two activity which is "ServiceListAdapter" and "AlarmActivity"
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.material.card.MaterialCardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@ id/service_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginHorizontal="8dp"
android:layout_marginVertical="4dp"
android:backgroundTint="#E9E9ED"
android:clickable="true"
android:focusable="true"
android:minHeight="@dimen/button_min_height"
app:cardElevation="1dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="@ id/services_heading_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal">
<ImageView
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_margin="12dp"
android:layout_weight="0"
android:importantForAccessibility="no"
android:src="@drawable/ic_baseline_build_circle_24" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="2"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/services"
android:textAllCaps="false"
android:textAppearance="?attr/textAppearanceBody2"
android:textColor="@color/black"
android:textSize="16sp" />
<TextView
android:id="@ id/services_done_list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="false"
android:textSize="14sp"
tools:text="Oil Filer, Spark Plugs, Battery" />
</LinearLayout>
<ImageView
android:id="@ id/services_expand_view"
android:layout_width="32dp"
android:layout_height="32dp"
android:layout_margin="12dp"
android:layout_weight="0"
android:contentDescription="@string/expand_more_button"
android:src="@drawable/ic_baseline_expand_more_24" />
</LinearLayout>
<com.google.android.material.divider.MaterialDivider
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@ id/services_details_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingHorizontal="6dp"
android:paddingTop="0dp"
android:paddingBottom="8dp"
android:visibility="gone"
app:layout_constraintEnd_toStartOf="@ id/services_left_layout"
app:layout_constraintStart_toStartOf="@ id/services_left_layout">
<LinearLayout
android:id="@ id/services_left_layout"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_margin="8dp"
android:orientation="vertical"
app:layout_constraintEnd_toStartOf="@id/services_right_layout"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/service_date"
android:textAppearance="?attr/textAppearanceBody2"
android:textColor="@color/black"
android:textSize="16sp" />
<TextView
android:id="@ id/service_date_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="false"
android:textSize="14sp"
tools:text="01 Nov 2022" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:text="@string/current_mileage"
android:textAppearance="?attr/textAppearanceBody2"
android:textColor="@color/black"
android:textSize="16sp" />
<TextView
android:id="@ id/current_mileage_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="false"
android:textSize="14sp"
tools:text="2,000 km" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:text="@string/next_service_mileage"
android:textAppearance="?attr/textAppearanceBody2"
android:textColor="@color/black"
android:textSize="16sp" />
<TextView
android:id="@ id/next_service_mileage_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="false"
android:textSize="14sp"
tools:text="4,000 km" />
</LinearLayout>
<LinearLayout
android:id="@ id/services_right_layout"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_margin="8dp"
android:orientation="vertical"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@id/services_left_layout"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/next_service_date"
android:textAppearance="?attr/textAppearanceBody2"
android:textColor="@color/black"
android:textSize="16sp" />
<TextView
android:id="@ id/next_service_date_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="false"
android:textSize="14sp"
tools:text="01 Mar 2023" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:text="@string/total_cost"
android:textAppearance="?attr/textAppearanceBody2"
android:textColor="@color/black"
android:textSize="16sp" />
<TextView
android:id="@ id/total_cost_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="false"
android:textSize="14sp"
tools:text="1,500 KSH" />
</LinearLayout>
<TextView
android:id="@ id/service_notes_title_text_view"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="24dp"
android:text="@string/notes"
android:textAppearance="?attr/textAppearanceBody2"
android:textColor="@color/black"
android:textSize="16sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/services_left_layout" />
<TextView
android:id="@ id/service_notes_text_view"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:textAllCaps="false"
android:textSize="14sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/service_notes_title_text_view"
tools:text="Testing out the notes appearance" />
<!-- This section is to create our alarm from different page since Examiner-->
<!-- want the user to separate the alarm from the add service -->
<EditText
android:id="@ id/titleET"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/service_notes_text_view"
android:hint="Title for your notification"
tools:context=".ui.AlarmActivity"
android:autofillHints="Which Car" />
<EditText
android:id="@ id/messageET"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="You can set your own notification here"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/titleET"
tools:context=".ui.AlarmActivity"
android:autofillHints="what service" />
<DatePicker
android:id="@ id/date_p"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="-30dp"
android:layout_marginRight="-30dp"
android:layout_weight="1"
android:calendarViewShown="false"
android:datePickerMode="spinner"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/messageET"
tools:context=".ui.AlarmActivity"/>
<TimePicker
android:id="@ id/time_p"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="-30dp"
android:layout_marginRight="-30dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:timePickerMode="spinner"
app:layout_constraintTop_toBottomOf="@id/date_p"
tools:context=".ui.AlarmActivity"/>
<Button
android:id="@ id/done_fab"
android:layout_marginTop="20dp"
android:layout_gravity="center"
android:text="schedule_notification"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/time_p"
tools:context=".ui.AlarmActivity"/>
<LinearLayout
android:id="@ id/services_actions_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="end|center_vertical"
android:orientation="horizontal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/done_fab">
<Button
android:id="@ id/edit_service_button"
style="@style/Widget.MaterialComponents.Button.TextButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginHorizontal="4dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="4dp"
android:padding="2dp"
android:text="@string/edit"
android:textAppearance="?attr/textAppearanceBody2"
android:textColor="@color/black"
app:drawableTopCompat="@drawable/ic_baseline_edit_24" />
<Button
android:id="@ id/delete_service_button"
style="@style/Widget.MaterialComponents.Button.TextButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginHorizontal="2dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="4dp"
android:padding="2dp"
android:text="@string/delete"
android:textAppearance="?attr/textAppearanceBody2"
android:textColor="@color/black"
app:drawableTopCompat="@drawable/ic_baseline_delete_24" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</LinearLayout>
</com.google.android.material.card.MaterialCardView>
CodePudding user response：
Before onCreate you need to initialize all widget like
Button done_fab;//in JAVA
private lateinit var done_fab: Button //in Kotlin
//Add other here
and after setContentView you need to initialize the same widget with name like
done_fab=findViewById(R.id.done_fab);//in java
done_fab= findViewById(R.id.done_fab)//in Kotlin
//Add other here
it will be ready to use in overall activity class.