我的应用程序中有一个非常长的回收站查看器，带有可点击的标题和许多其他功能。现在，当我单击循环查看器标题内的按钮时，我需要使用其他布局重新填充它。在主要布局中，内容是一个可垂直滚动的视图，在第二个布局中图片后面的图片是3行。我设置了一个bool来检查要膨胀的布局但是我还没找到，怎么样实现这一点。这个（LONG ...）代码是包含其所有组件的recycleviewer：
class Profile_RecyclerViewAdapter : RecyclerView.Adapter, IItemClickLIstener
{
private List<DataForProfile> lstData = new List<DataForProfile>();
private Context ctx;
private static int TYPE_HEADER = 0;
private static int TYPE_ITEM = 2;
public static bool boolPicsInSingles;
// Konstruktor
public Profile_RecyclerViewAdapter(List<DataForProfile> lstData, Context ctx)
{
this.lstData = lstData;
this.ctx = ctx;
}
// OnBindViewHolder beinhaltet die Items die recycelt (also immer mit neuen Daten bespielt) werden.
public override void OnBindViewHolder(RecyclerView.ViewHolder holder, int position)
{
//Check ob Header oder Data
if (holder.GetType() == typeof(HeaderViewHolder))
{
HeaderViewHolder headerHolder = holder as HeaderViewHolder;
headerHolder.txtNewest.Click += delegate
{
//MoveSlider(ProfilePhotoSelection.Newest);
Toast.MakeText(ctx, "Sort below images starting from newest to olders", ToastLength.Long).Show();
};
headerHolder.txtMostAp.Click += delegate
{
//MoveSlider(ProfilePhotoSelection.MostAp);
Toast.MakeText(ctx, "Sort below images starting form most received ap (hardest challengs) to least amount (easiest challenge)", ToastLength.Long).Show();
};
headerHolder.txtMostUpVotes.Click += delegate
{
//MoveSlider(ProfilePhotoSelection.Gallery);
Toast.MakeText(ctx, "Sort below images start with the one that has the most upvotes, going to one with the least amount", ToastLength.Long).Show();
};
}
else if (holder.GetType() == typeof(RecyclerViewHolder))
{
RecyclerViewHolder viewHolder = holder as RecyclerViewHolder;
viewHolder.txtTitle.Text = (lstData[position-1].description); // - 1 wegen des Headers
viewHolder.imageView.SetImageBitmap((lstData[position-1].img));
viewHolder.SetItemClickListener(this);
}
}
// Welches Layout Inflatet wird!
public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)
{
if (viewType == TYPE_ITEM)
{
// Normale Items
if (!boolPicsInSingles)
{
//Pics in Singles
LayoutInflater inflater = LayoutInflater.From(parent.Context);
View itemView = inflater.Inflate(Resource.Layout.RecView_Profile_Rows, parent, false);
return new RecyclerViewHolder(itemView, ctx);
}
else
{
// Pics in Rows
LayoutInflater inflater = LayoutInflater.From(parent.Context);
View itemView = inflater.Inflate(Resource.Layout.RecView_Profile_Singles, parent, false);
return new RecyclerViewHolder(itemView, ctx);
}
}
else if (viewType == TYPE_HEADER)
{
//Inflating header view
LayoutInflater inflater = LayoutInflater.From(parent.Context);
View itemView = inflater.Inflate(Resource.Layout.RecView_Profile_Header, parent, false);
return new HeaderViewHolder(itemView, ctx);
}
else return null;
}
// Get Number Of Items
public override int ItemCount
{
get
{
return lstData.Count + 1; // +1 wegen des headers!
}
}
// Custom Override um zu bestimmen, ob Header oder Item
public override int GetItemViewType(int position)
{
if (position == 0)
{
return TYPE_HEADER;
}
else if (position == lstData.Count() + 1) //+1 wegen des Headers
{
return TYPE_ITEM;
}
return TYPE_ITEM;
}
// Click Events On Picture
public void OnClick(View itemView, int position, bool isLongClick)
{
var activity2 = new Intent(ctx, typeof(Activity_Userpicture_Fullscreen));
activity2.PutExtra("username", Activity_Profile.strUsername);
activity2.PutExtra("taskid", lstData[position - 1].description);
ctx.StartActivity(activity2);
}
}
// Eigene Klasse für den Header
public class HeaderViewHolder : RecyclerView.ViewHolder
{
private Typeface font;
public ImageButton btnAdd, btnAvatar, btnItemSelected, btnBigPicture;
public TextView txtNewest, txtMostAp, txtMostUpVotes, txtApNumber, txtAp, txtFriendsNumber,
txtFriends, txtHofNumber, txtHof, txtUsername, txtRank, txtMotto;
private LinearLayout linlay, linlayNavigation, linLayDivider;
private int intHeightOfDisplay, intCurrentPositionOfSlider;
// Praktisch OnCreate()
public HeaderViewHolder(View itemView, Context ctx) : base(itemView)
{
if (ctx.Resources.DisplayMetrics.HeightPixels >= 2560)
{
intHeightOfDisplay = 2560;
}
else
{
intHeightOfDisplay = ctx.Resources.DisplayMetrics.HeightPixels;
}
InitButtons(itemView, ctx);
InitTextViews(itemView, ctx);
InitLinLays(itemView, ctx);
InitAvatar(ctx);
InitBigPicture(ctx);
}
private void InitButtons(View itemView, Context ctx)
{
btnAdd = itemView.FindViewById<ImageButton>(Resource.Id.btn_addfriendProfile);
btnAvatar = itemView.FindViewById<ImageButton>(Resource.Id.btn_avatarProfile);
btnItemSelected = itemView.FindViewById<ImageButton>(Resource.Id.btn_selecteditem_profile);
btnBigPicture = itemView.FindViewById<ImageButton>(Resource.Id.btn_dummyBackgroundPicture_Profile);
btnAdd.Click += delegate
{
AlertAddAUser(ctx);
};
btnAvatar.Click += delegate
{
AlertAvatarAndGallery(Constants.PROFILEPICTURETASK.ToString(), ctx);
};
}
private void InitTextViews(View itemView, Context ctx)
{
txtApNumber = itemView.FindViewById<TextView>(Resource.Id.txt_ap_number_profile);
txtAp = itemView.FindViewById<TextView>(Resource.Id.txt_ap_text_profile);
txtFriendsNumber = itemView.FindViewById<TextView>(Resource.Id.txt_friends_number_profile);
txtFriends = itemView.FindViewById<TextView>(Resource.Id.txt_friends_text_profile);
txtHofNumber = itemView.FindViewById<TextView>(Resource.Id.txt_hof_number_profile);
txtHof = itemView.FindViewById<TextView>(Resource.Id.txt_hof_text_profile);
txtUsername = itemView.FindViewById<TextView>(Resource.Id.txt_username_profile);
txtRank = itemView.FindViewById<TextView>(Resource.Id.txt_level_profile);
txtMotto = itemView.FindViewById<TextView>(Resource.Id.txt_motto_profile);
txtNewest = itemView.FindViewById<TextView>(Resource.Id.txt_newest_profile);
txtMostAp = itemView.FindViewById<TextView>(Resource.Id.txt_mostap_profile);
txtMostUpVotes = itemView.FindViewById<TextView>(Resource.Id.txt_mostupvotes_profile);
font = Typeface.CreateFromAsset(ctx.Assets, "CourierNew.ttf");
txtApNumber.SetTypeface(font, TypefaceStyle.Normal);
txtAp.SetTypeface(font, TypefaceStyle.Normal);
txtFriendsNumber.SetTypeface(font, TypefaceStyle.Normal);
txtFriends.SetTypeface(font, TypefaceStyle.Normal);
txtHofNumber.SetTypeface(font, TypefaceStyle.Normal);
txtHof.SetTypeface(font, TypefaceStyle.Normal);
txtUsername.SetTypeface(font, TypefaceStyle.Bold);
txtRank.SetTypeface(font, TypefaceStyle.Normal);
txtMotto.SetTypeface(font, TypefaceStyle.Normal);
txtNewest.SetTypeface(font, TypefaceStyle.Normal);
txtMostAp.SetTypeface(font, TypefaceStyle.Normal);
txtMostUpVotes.SetTypeface(font, TypefaceStyle.Normal);
txtUsername.Text = Activity_Profile.strUsername.ToUpper();
txtUsername.TextSize = 18;
txtApNumber.Text = formatXP();
int padding = 50;
txtUsername.SetPadding(ctx.Resources.DisplayMetrics.WidthPixels / padding, 0, 0, 0);
txtRank.SetPadding(ctx.Resources.DisplayMetrics.WidthPixels / padding, 0, 0, 0);
txtHof.SetPadding(0, 0, ctx.Resources.DisplayMetrics.WidthPixels / padding, 0);
txtHofNumber.SetPadding(0, 0, ctx.Resources.DisplayMetrics.WidthPixels / padding, 0);
txtMotto.SetPadding(ctx.Resources.DisplayMetrics.WidthPixels / padding, intHeightOfDisplay / 150, 0, 0);
txtNewest.Click += delegate
{
MoveSlider(ProfilePhotoSelection.Newest, ctx);
};
txtMostAp.Click += delegate
{
MoveSlider(ProfilePhotoSelection.MostAp, ctx);
};
txtMostUpVotes.Click += delegate
{
MoveSlider(ProfilePhotoSelection.Gallery, ctx);
};
}
private void InitLinLays(View itemView, Context ctx)
{
linlay = itemView.FindViewById<LinearLayout>(Resource.Id.linlay_profile);
linLayDivider = itemView.FindViewById<LinearLayout>(Resource.Id.linlay_divider_profile);
linlayNavigation = itemView.FindViewById<LinearLayout>(Resource.Id.linlay_navigation_profile);
linlayNavigation.LayoutParameters = new LinearLayout.LayoutParams
(LinearLayout.LayoutParams.MatchParent, intHeightOfDisplay / 20);
linLayDivider.LayoutParameters = new LinearLayout.LayoutParams
(LinearLayout.LayoutParams.FillParent, intHeightOfDisplay / 25);
double tempValue = intHeightOfDisplay / 2.85;
FrameLayout.LayoutParams _params = new FrameLayout.LayoutParams
(ViewGroup.LayoutParams.FillParent, (int)tempValue);
linlay.LayoutParameters = _params;
FrameLayout.LayoutParams xy = new FrameLayout.LayoutParams
(FrameLayout.LayoutParams.WrapContent, FrameLayout.LayoutParams.WrapContent);
xy.SetMargins(ctx.Resources.DisplayMetrics.WidthPixels / 100, 0, 0, 0);
xy.Gravity = GravityFlags.Bottom | GravityFlags.Left;
btnAvatar.LayoutParameters = xy;
}
private void InitAvatar(Context ctx)
{
List<KumulosHelper.Objects.Picture> lstPicture;
lstPicture = Pictures.getPhotoBasedOnUserAndTask(Constants.PROFILEPICTURETASK.ToString(),
Activity_Profile.strUsername, "1");
if (lstPicture.Count > 0)
{
Bitmap bitmap = KumulosGeneral.DecodePhotoFromBase64(lstPicture[0].photo);
bitmap = ImageServiceDroid.ResizeImage(bitmap, ctx.Resources.DisplayMetrics.WidthPixels / 4f,
ctx.Resources.DisplayMetrics.WidthPixels / 4f, false);
btnAvatar.SetImageBitmap(BitmapHelpers.DrawBorderWithOutLine(bitmap, Constants.SCALEOFCIRCLE));
}
}
private void InitBigPicture(Context ctx)
{
List<TitlePicture> pictures = KumulosHelper.TitePictures.getPicture(Activity_Profile.strUsername, "0"); //1 für thumbnail 0 für vollbild
if (pictures.Count == 1)
{
Bitmap bitmap = KumulosGeneral.DecodePhotoFromBase64(pictures[0].photo);
Drawable intHeitOfDrawable = ctx.Resources.GetDrawableForDensity
(Resource.Drawable.thebook_dummyBackgroundBigPicture, (int)ctx.Resources.DisplayMetrics.DensityDpi);
bitmap = Bitmap.CreateScaledBitmap(bitmap, ctx.Resources.DisplayMetrics.WidthPixels,
intHeitOfDrawable.IntrinsicHeight, false);
btnBigPicture.SetImageBitmap(bitmap);
}
else
{
}
btnBigPicture.Click += delegate
{
AlertAvatarAndGallery(Constants.LANDSCAPEPICTURETASK.ToString(), ctx);
};
}
private void AlertAvatarAndGallery(string id, Context ctx)
{
if (!Activity_Profile.boolSomeoneElsesProfile)
{
AlertDialog.Builder alert = new AlertDialog.Builder(ctx);
alert.SetPositiveButton("Change Picture", (senderAlert, args) =>
{
Toast.MakeText(ctx, "Not yet possible", ToastLength.Short).Show();
});
alert.SetNeutralButton("Show Picture", (senderAlert, args) =>
{
var activity2 = new Intent(ctx, typeof(Activity_Userpicture_Fullscreen));
activity2.PutExtra("username", Activity_Profile.strUsername);
activity2.PutExtra("taskid", id);
ctx.StartActivity(activity2);
});
Dialog dialog = alert.Create();
dialog.Show();
}
else
{
var activity2 = new Intent(ctx, typeof(Activity_Userpicture_Fullscreen));
activity2.PutExtra("username", Activity_Profile.strUsername);
activity2.PutExtra("taskid", Constants.PROFILEPICTURETASK.ToString());
ctx.StartActivity(activity2);
}
}
public void MoveSlider(ProfilePhotoSelection selection, Context ctx)
{
int[] locationOnScreenTxt = new int[2];
int lengthOfTxt = 0;
int animateTo = 0;
TranslateAnimation animation = null;
switch (selection)
{
case ProfilePhotoSelection.MostAp:
txtMostAp.GetLocationOnScreen(locationOnScreenTxt);
lengthOfTxt = txtMostAp.MeasuredWidth;
animateTo = (locationOnScreenTxt[0] - lengthOfTxt / 3);
animation = new TranslateAnimation(intCurrentPositionOfSlider, animateTo, 0, 0);
break;
case ProfilePhotoSelection.Newest:
txtNewest.GetLocationOnScreen(locationOnScreenTxt);
lengthOfTxt = txtNewest.MeasuredWidth;
animateTo = (locationOnScreenTxt[0] - lengthOfTxt / 3);
animation = new TranslateAnimation(intCurrentPositionOfSlider, animateTo, 0, 0);
Profile_RecyclerViewAdapter.boolPicsInSingles = false;
break;
case ProfilePhotoSelection.Gallery:
txtMostUpVotes.GetLocationOnScreen(locationOnScreenTxt);
lengthOfTxt = txtMostUpVotes.MeasuredWidth;
animateTo = (locationOnScreenTxt[0] - lengthOfTxt / 4);
animation = new TranslateAnimation(intCurrentPositionOfSlider, animateTo, 0, 0);
Profile_RecyclerViewAdapter.boolPicsInSingles = true;
break;
}
animation.FillAfter = true;
animation.SetInterpolator(ctx, Android.Resource.Animation.AccelerateDecelerateInterpolator);
animation.Duration = 400;
btnItemSelected.StartAnimation(animation);
intCurrentPositionOfSlider = animateTo;
}
private string formatXP()
{
string result = "Null";
string temp = "Null";
if (Account.Instance.Experience > 999)
{
temp = (Account.Instance.Experience.ToString("N"));
temp = temp.Remove(temp.Length - 3, 3);
result = temp;
}
else
{
result = Account.Instance.Experience.ToString();
}
return result;
}
private void AlertAddAUser(Context ctx)
{
AlertDialog.Builder alert = new AlertDialog.Builder(ctx);
alert.SetPositiveButton("Befriend Me!", (senderAlert, args) =>
{
var xy = new Activity_AddAFriend();
xy.AddFriend(Activity_Profile.strUsername, ctx);
});
alert.SetNeutralButton("Add Me To Group!", (senderAlert, args) =>
{
Toast.MakeText(ctx, "Not yet possible", ToastLength.Short).Show();
});
Dialog dialog = alert.Create();
dialog.Show();
}
}
// Init aus XML, Optik veränderungen hier!
class RecyclerViewHolder : RecyclerView.ViewHolder, View.IOnClickListener
{
public ImageView imageView { get; set; }
public TextView txtTitle { get; set; }
public TextView txtDescription { get; set; }
public TextView txtDate { get; set; }
public TextView txtLikeCountBlue { get; set; }
public TextView txtLikeCountGreen { get; set; }
public TextView txtComments { get; set; }
private Typeface font;
private Context ctx;
private IItemClickLIstener itemClickListener;
public RecyclerViewHolder(View itemView, Context ctx) : base(itemView)
{
this.ctx = ctx;
txtTitle = itemView.FindViewById<TextView>(Resource.Id.RecView_Profile_TaskName);
imageView = itemView.FindViewById<ImageView>(Resource.Id.imageView1);
txtDescription = itemView.FindViewById<TextView>(Resource.Id.RecView_Profile_Description);
txtDate = itemView.FindViewById<TextView>(Resource.Id.RecView_Profile_Date);
txtLikeCountBlue = itemView.FindViewById<TextView>(Resource.Id.txt_recview_profile_blue);
txtLikeCountGreen = itemView.FindViewById<TextView>(Resource.Id.txt_recview_profile_green);
txtComments = itemView.FindViewById<TextView>(Resource.Id.txt_recview_profile_comments);
font = Typeface.CreateFromAsset(ctx.Assets, "CourierNew.ttf");
txtTitle.SetTypeface(font, TypefaceStyle.Bold);
txtDescription.SetTypeface(font, TypefaceStyle.Normal);
txtDate.SetTypeface(font, TypefaceStyle.Normal);
txtLikeCountBlue.SetTypeface(font, TypefaceStyle.Normal);
txtLikeCountGreen.SetTypeface(font, TypefaceStyle.Normal);
txtComments.SetTypeface(font, TypefaceStyle.Normal);
itemView.SetOnClickListener(this);
}
public void SetItemClickListener(IItemClickLIstener itemClickListener)
{
this.itemClickListener = itemClickListener;
}
public void OnClick(View v)
{
itemClickListener.OnClick(v, AdapterPosition, false);
}
}
// Getter und Setter für einzelne Optiken. Je nach Elemente die in der Scrollview gebraucht werden, anpassen.
public class DataForProfile
{
public int imageId { get; set; }
public Bitmap img { get; set; }
public string description { get; set; }
}
public interface IItemClickLIstener
{
void OnClick(View itemView, int position, bool isLongClick);
}
}