Anyone?
On Tuesday, June 14, 2016 at 3:57:37 PM UTC+3, Amitai Rosenberg wrote:
>
> I'm trying to generate a Palette for each CardView I have inside a
> RecyclerView, and to color the card based on the Palette generated.
> However, for some weird reason, only the last two CardViews of the
> RecyclerView get colored.
>
>
> This is my code:
>
>
> RecyclerAdapter:
>
> public class RecyclerAdapter : RecyclerView.Adapter,
> Palette.IPaletteAsyncListener
> {
> private List<Book> mBooks;
> private RecyclerView mRecyclerView;
> private Context mContext;
> private int mCurrentPosition = -1;
> private bool isPaletteGenerated = false;
> MyView myHolder;
> public RecyclerAdapter(List<Book> books, RecyclerView recyclerView,
> Context context)
> {
> mBooks = books;
> mRecyclerView = recyclerView;
> mContext = context;
> }
>
> public class MyView : RecyclerView.ViewHolder
> {
> public View mMainView { get; set; }
> public TextView mTitle { get; set; }
> public ImageView mCoverImage { get; set; }
> public int mCoverImageResourceID { get; set; }
> public CardView mCard { get; set; }
>
> public MyView(View view) : base(view)
> {
> mMainView = view;
> }
> }
>
> public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup
> parent, int viewType)
> {
>
> View bookItem =
> LayoutInflater.From(parent.Context).Inflate(Resource.Layout.item_book,
> parent, false);
>
>
> TextView bookTitle =
> bookItem.FindViewById<TextView>(Resource.Id.bookTitle);
> ImageView coverImage =
> bookItem.FindViewById<ImageView>(Resource.Id.coverImage);
> CardView card = bookItem.FindViewById<CardView>(Resource.Id.card);
>
> MyView view = new MyView(bookItem) { mTitle = bookTitle,
> mCoverImage = coverImage, mCard = card};
> return view;
> }
>
> public override async void OnBindViewHolder(RecyclerView.ViewHolder
> holder, int position)
> {
> myHolder = holder as MyView;
> myHolder.mMainView.Click += mMainView_Click;
> myHolder.mTitle.Text = mBooks[position].Title;
>
> myHolder.mCoverImage.SetImageDrawable(mBooks[position].Cover.Drawable);
> myHolder.mCoverImageResourceID = mBooks[position].imageResourceId;
>
> if (position > mCurrentPosition)
> {
> int currentAnim = Resource.Animation.slide_left_to_right;
> //SetAnimation(myHolder.mMainView, currentAnim);
> mCurrentPosition = position;
> }
>
> Bitmap photo = await
> BitmapFactory.DecodeResourceAsync(mContext.Resources,
> myHolder.mCoverImageResourceID);
> BitmapDrawable bitmapDrawable =
> ((BitmapDrawable)mBooks[position].Cover.Drawable);
> Bitmap image = bitmapDrawable.Bitmap;
>
> var palette =
> Palette.From(photo).MaximumColorCount(16).Generate(this);
>
>
> }
>
> public void OnGenerated(Palette palette)
> {
>
> if (palette == null)
> return;
> try
> {
> if (palette.LightVibrantSwatch != null)
> {
> var lightVibrant = new
> Color(palette.LightVibrantSwatch.Rgb);
> myHolder.mCard.SetCardBackgroundColor(lightVibrant);
> }
> if (palette.DarkVibrantSwatch != null)
> {
> var darkVibrant = new
> Color(palette.DarkVibrantSwatch.Rgb);
> myHolder.mCard.SetCardBackgroundColor(darkVibrant);
> }
> }
> catch (Exception ex)
> {
>
> }
>
> }
>
> public override int ItemCount
> {
> get { return mBooks.Count; }
> }
> }
>
>
> Fragment in which the RecyclerView is inside:
>
> public override View OnCreateView(LayoutInflater inflater, ViewGroup
> container, Bundle savedInstanceState)
> {
>
> mRecyclerView =
> view.FindViewById<RecyclerView>(Resource.Id.booksRecyclerView);
> mBooks = new List<Book>();
> ImageView cover = new ImageView(Activity);
>
> cover.SetImageResource(Resource.Drawable.Torat_Hamachane1);
> mBooks.Add(new Book() { Title = "תורת המחנה א' - הלכות יום ויום",
> Cover = cover, imageResourceId = Resource.Drawable.Torat_Hamachane1});
>
>
> mLayoutManager = new GridLayoutManager(Activity, 2);
> mRecyclerView.SetForegroundGravity(GravityFlags.CenterHorizontal);
> mRecyclerView.SetLayoutManager(mLayoutManager);
> SimpleItemAnimator x = null;
>
> mRecyclerView.SetItemAnimator(x);
> mAdapter = new RecyclerAdapter(mBooks, mRecyclerView, Activity);
> mRecyclerView.SetAdapter(mAdapter);
>
>
> cover = new ImageView(Activity);
> cover.SetImageResource(Resource.Drawable.kitzurTHM);
> mBooks.Add(new Book() { Title = "קיצור תורת המחנה - הלכות יום ויום
> ושבת", Cover = cover, imageResourceId = Resource.Drawable.kitzurTHM });
>
> cover = new ImageView(Activity);
> cover.SetImageResource(Resource.Drawable.halkasPurim);
> mBooks.Add(new Book() { Title = "הלכה כסדרה - הלכות פורים", Cover =
> cover, imageResourceId = Resource.Drawable.halkasPurim });
>
> cover = new ImageView(Activity);
> cover.SetImageResource(Resource.Drawable.halkasPesach);
> mBooks.Add(new Book() { Title = "הלכה כסדרה - הלכות פסח", Cover =
> cover, imageResourceId= Resource.Drawable.halkasPesach });
>
> cover = new ImageView(Activity);
> cover.SetImageResource(Resource.Drawable.netzach);
> mBooks.Add(new Book() { Title = "שו\"ת נצח יהודה", Cover = cover ,
> imageResourceId = Resource.Drawable.netzach});
>
> cover = new ImageView(Activity);
> cover.SetImageResource(Resource.Drawable.tankim);
> mBooks.Add(new Book() { Title = "טיפול בטנקים בשבת", Cover = cover ,
> imageResourceId = Resource.Drawable.tankim});
>
> cover = new ImageView(Activity);
> cover.SetImageResource(Resource.Drawable.tipulBeChalalim);
> mBooks.Add(new Book() { Title = "טיפול בחללים בשבת", Cover = cover ,
> imageResourceId = Resource.Drawable.tipulBeChalalim});
> return view;
>
> }
>
>
>
> Hope someone can please help me find out why only the last two items get
> colored.
>
> Thanks!
>
>
>
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