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New branch #3

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4de97ee
add the newinstance function
CyanriveR Oct 19, 2023
e8a91c2
if statement to check whether is initialized or not
CyanriveR Oct 24, 2023
2e0a73a
setimages function
CyanriveR Oct 24, 2023
4b1006e
solution without viewmodel
CyanriveR Oct 26, 2023
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1 change: 0 additions & 1 deletion .idea/misc.xml
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10 changes: 9 additions & 1 deletion app/src/main/java/edu/temple/inclassactivity/ImageDisplayFragment.kt
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Expand Up @@ -40,7 +40,8 @@ class ImageDisplayFragment : Fragment() {
// The recycler view is the root element of the Fragment's layout
// as such the view argument passed to onViewCreated() is the RecyclerView
with (view as RecyclerView) {
adapter = CustomRecyclerAdapter(images)
if(::images.isInitialized)
adapter = CustomRecyclerAdapter(images)
layoutManager = GridLayoutManager(requireContext(), 2)
}
}
Expand All @@ -53,4 +54,11 @@ class ImageDisplayFragment : Fragment() {
}
}
}

fun setimage(newimages: IntArray){
images = newimages
val adapter = CustomRecyclerAdapter(newimages)
view?.run {
(view as RecyclerView).adapter = adapter}
}
}
8 changes: 5 additions & 3 deletions app/src/main/java/edu/temple/inclassactivity/MainActivity.kt
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Expand Up @@ -2,6 +2,8 @@ package edu.temple.inclassactivity

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import androidx.fragment.app.Fragment

class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
Expand All @@ -12,8 +14,8 @@ class MainActivity : AppCompatActivity() {
val typedArray = resources.obtainTypedArray(R.array.image_ids)
val imageArray = IntArray(typedArray.length()) {typedArray.getResourceId(it, 0)}
typedArray.recycle()

// Attach an instance of ImageDisplayFragment using factory method

findViewById<Button>(R.id.button).setOnClickListener{
(supportFragmentManager.findFragmentById(R.id.fragmentContainerView) as ImageDisplayFragment).setimage(imageArray)
}
}
}
22 changes: 22 additions & 0 deletions app/src/main/res/layout/activity_main.xml
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Expand Up @@ -5,4 +5,26 @@
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">

<androidx.fragment.app.FragmentContainerView
android:id="@+id/fragmentContainerView"
android:name="edu.temple.inclassactivity.ImageDisplayFragment"
android:layout_width="0dp"
android:layout_height="600dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />

<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/fragmentContainerView" />
</androidx.constraintlayout.widget.ConstraintLayout>