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// For apps using Jetpack Compose
implementation("androidx.photopicker:photopicker-compose:1.0.0-alpha01")

// For apps using Views
implementation("androidx.photopicker:photopicker:1.0.0-alpha01")

val coroutineScope = rememberCoroutineScope()
val pickerState = rememberEmbeddedPhotoPickerState()

EmbeddedPhotoPicker(
    state = pickerState,
    onUriPermissionGranted = { uris ->
        _attachments.value += uris
    },
    onUriPermissionRevoked = { uris ->
        _attachments.value -= uris
    },
    onSelectionComplete = {
        // Hide the embedded photo picker as the user is done with the
        // photo/video selection
    },
)

coroutineScope.launch {
    // Signal unselected media to the picker
    pickerState.deselectUris(uris)
    // Remove them from the list of selected media to be reflected in the app's UI
    _attachments.value -= uris
}

val info = EmbeddedPhotoPickerFeatureInfo.Builder().setAccentColor(0xFF0000).build()

EmbeddedPhotoPicker(
    embeddedPhotoPickerFeatureInfo = info,
    ...
)

EmbeddedPhotoPicker(
    modifier = Modifier.height(500.dp),
    ...
)

<view class="androidx.photopicker.EmbeddedPhotoPickerView"
    android:id="@+id/photopicker"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

// Keep track of the selected media
private val _attachments = MutableStateFlow(emptyList<Uri>())
val attachments = _attachments.asStateFlow()

private lateinit var picker: EmbeddedPhotoPickerView
private var openSession: EmbeddedPhotoPickerSession? = null

val pickerListener = object : EmbeddedPhotoPickerStateChangeListener {
    override fun onSessionOpened(newSession: EmbeddedPhotoPickerSession) {
        // Keep reference to the session to notify the embedded picker of user
        // interactions on the calling app
        openSession = newSession
    }

    override fun onSessionError(throwable: Throwable) {}

    override fun onUriPermissionGranted(uris: List<Uri>) {
        // Add newly selected media to our tracked list
        _attachments += uris
    }

    override fun onUriPermissionRevoked(uris: List<Uri>) {
        // Remove newly unselected media from our tracked list
        _attachments -= uris
    }

    override fun onSelectionComplete() {
        // Hide the embedded photo picker as the user is done with the
        // photo/video selection
    }
}

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)

    setContentView(R.layout.main_view)
    picker = findViewById(R.id.photopicker)

    // Attach the embedded picker event listener to update the app's UI
    picker.addEmbeddedPhotoPickerStateChangeListener(pickerListener)

    // Customize embedded picker's features: accent color, max selectable items,
    // pre-selected URIs, filter out mime types
    picker.setEmbeddedPhotoPickerFeatureInfo(
        // Set a custom accent color
        EmbeddedPhotoPickerFeatureInfo.Builder().setAccentColor(0xFF0000).build()
    )
}

// Notify the embedded picker of a configuration change
openSession.notifyConfigurationChanged(newConfig)

// Update the embedded picker to expand following a user interaction
openSession.notifyPhotoPickerExpanded(/* expanded: */ true)

// Resize the embedded picker
openSession.notifyResized(/* width: */ 512, /* height: */ 256)

// Show/hide the embedded picker (after a form has been submitted)
openSession.notifyVisibilityChanged(/* visible: */ false)

// Remove unselected media from the embedded picker after they have been
// unselected from the host app's UI
openSession.requestRevokeUriPermission(removedUris)