B4A Library [Library] B4aGridView v3.80

lonleystar · Jan 8, 2013

Hi guys, B4AGridView is updated to v3.70.

1: GridView Demo
1: Library
1: PDF Explanations

A big thanks goes to ( Sergey Tarasevich - author of Universal Image Loader )

A thanks is always appreciated.

B4AGridView
Author: Giuseppe Salvi
Version: 3.7

Fields:
- Default As Typeface
  The default NORMAL typeface object.
- Default_Bold As Typeface
  The default BOLD typeface object.
- Monospace As Typeface
  The NORMAL style of the default monospace typeface.
- Sans_Serif As Typeface
  The NORMAL style of the default sans serif typeface.
- Serif As Typeface
  The NORMAL style of the default serif typeface.
- Style_Bold As Int
  The default BOLD style int.
- Style_Bold_Italic As Int
  The default BOLD ITALIC style int.
- Style_Italic As Int
  The default ITALIC style int.
- Style_Normal As Int
  The default NORMAL style int.
Methods:
- LoadFontFromAssets (file As String) As Typeface
  Create a new typeface from the specified font data from assets.
- LoadFontFromFile (file As String) As Typeface
  Create a new typeface from the specified font data from sdcard.
Fields:
- Center As ScaleType
  Center the image in the view, but perform no scaling.
- Center_Crop As ScaleType
  Scale the image uniformly (maintain the image's aspect ratio) so that both dimensions (width and height) of the image
  will be equal to or larger than the corresponding dimension of the view (minus padding).
- Center_Inside As ScaleType
  Scale the image uniformly (maintain the image's aspect ratio) so that both dimensions (width and height) of the image
  will be equal to or less than the corresponding dimension of the view (minus padding).
- Fit_Center As ScaleType
  Scale the image using CENTER.
- Fit_End As ScaleType
  Scale the image using END.
- Fit_Start As ScaleType
  Scale the image using START.
- Fit_XY As ScaleType
  Scale the image using FILL.
- Matrix As ScaleType
  Scale using the image matrix when drawing.
Fields:
- CARDS As Int
  CARDS Effect = 2
- CURL As Int
  CURL Effect = 3
- FADE As Int
  FADE Effect = 12
- FAN As Int
  FAN Effect = 9
- FLIP As Int
  FLIP Effect = 5
- FLY As Int
  FLY Effect = 6
- GROW As Int
  GROW Effect = 1
- HELIX As Int
  HELIX Effect = 8
- PUZZLE As Int
  PUZZLE Effect = 16
- REVERSE_FLY As Int
  REVERSE_FLY Effect = 7
- REVERSE_TWIRL As Int
  REVERSE_TWIRL Effect = 15
- SLIDE_IN As Int
  SLIDE_IN Effect = 14
- STANDARD As Int
  Standard Effect = 0
- TILT As Int
  TILT Effect = 10
- TWIRL As Int
  TWIRL Effect = 13
- WAVE As Int
  WAVE Effect = 4
- ZIPPER As Int
  ZIPPER Effect = 11
Fields:
- Text_Bottom_Inside As GravityEnum
  Text Bottom InSide
- Text_Bottom_OutSide As GravityEnum
  Text Bottom OutSide
- Text_Center_Inside As GravityEnum
  Text Center InSide
- Text_Top_Inside As GravityEnum
  Text Top InSide
- Text_Top_OutSide As GravityEnum
  Text Top OutSide
Fields:
- AUTO_FIT As Int
  Creates as many columns as can fit on screen.
- NO_STRETCH As Int
  Disables stretching.
- STRETCH_COLUMN_WIDTH As Int
  Stretches the spacing between columns.
- STRETCH_SPACING As Int
  Stretches columns.
- STRETCH_SPACING_UNIFORM As Int
  Stretches the spacing between columns.
Fields:
- Compress_Format_JPG As CompressFormat
  Compression Format JPG
- Compress_Format_PNG As CompressFormat
  Compression Format PNG
PhotoGridView
Events:
- ItemClick (Position As Int, Value As Object)
- ItemLongClick (Position As Int, Value As Object)
- Ready ( As )
- ShareItemClick (Value As Object)
Methods:
- AddImage (dir As String, file As String)
 Add an image from sdcard or AssetsDir at the end of the GridView
- AddImageAt (index As Int, dir As String, file As String)
 Add an image from sdcard or AssetsDir to the desired position in the GridView
- AddImageFromWeb (address As String)
 Add an image from web at the end of the GridView
- AddImageFromWebAt (index As Int, address As String)
 Add an image from Web to the desired position in the GridView
- AddThisView
 Adds view to this activity 100%x,100%y
- ClearDiskCache
 Clears disk cache.
- ClearMemoryCache
 Clears memory cache
- DestroyEngine
 Stops ImageLoader and clears current configuration. Use this option on exit app.
- GetArrayList As List
 Gets array.
- GetCacheDir As String
 Returns application cache directory. Cache directory will be created on SD card
 ("/Android/data/[app_package_name]/cache") if card is mounted and app has appropriate permission. Else -
 Android defines cache directory on device's file system.
 Return type: @return:Cache {@link File directory}. 
 NOTE: Can be null in some unpredictable cases (if SD card is unmounted)
- GetImageListFromAssets (path As String, sort As Boolean) As List
 Get entire list of images stored in assets or sub-folder
 Examples:
 <code>
 Dim lv as ListView
 Dim l as list
 l.Initialize
 lv.Initialize("lv")
 Sub Menu_Click
 Activity.AddView(lv,0,0,100%x,100%y)
 l = GridView.GetImageListFromAssets("Here the Images folder stored in Assets")
 or
 l = GridView.GetImageListFromAssets(File.DirAssets)
 or
 l = GridView.GetImageListFromAssets("")
 For n = 0 To l.Size-1
 lv.AddSingleLine(l.Get(n))
 next
 End Sub
 </code>
- GetIndividualCacheDir As String
 Returns individual application cache directory (for only image caching from ImageLoader). Cache directory will be
 created on SD card ("/Android/data/[app_package_name]/cache/b4AGridview-Images") if card is mounted and app has
 appropriate permission. Else - Android defines cache directory on device's file system.
- GetItem (position As Int) As String
 Returns Item
 Example:
 i.Bitmap=LoadBitmap("",g.GetItem(Position))
- GetRealImagePath (filename As String) As String
 Returns the real path of the image
- GoToWebsite (url As String)
 Go to web site by given an address
 Example:
 GoToWebsite("www.example.com")
 url:
- Initialize (EventName As String)
 Initialize the object
- Initialize2 (EventName As String, withCacheName As String)
 Initialize the object and set own cache directory
- InitializeFromLayout (EventName As String, container As ViewGroup, Layout As String, LayoutID As String)
 Initialize the object from layout
- PauseEngine
 Pause ImageLoader. All new load and display tasks won't be executed until ImageLoader is resumed.
 Already running tasks are not paused.
- ResumeEngine
 Resumes waiting load and display tasks
- SetArrayList (array As ArrayList)
 Sets array.
- SetText (text As String)
 Sets the string value of the TextView.
- SetText2 (index As Int, text As String)
 Sets the string value of the TextView.
- ShareItemsTo (appName As String, item As String, subJect As String, message As String, shareTo As String)
 Share any items to ?
 app: name
 item:
 subJect:
 message:
 shareTo:
- ShareTextUrlTo (subject As String, text As String, message As String, shareTo As String)
 Share any text to ?
 subject:
 text:
 message:
 shareTo:
- ShowActionBarToShare (icons() As String)
 Sets the icons on action bar
 Example:
 Dim icons() As String = Array As String("gmail.png","email.png","gmx.png","dropbox.png","facebook.png","twitter.png","telegram.png","line.png")
 icons: as array
- ShowFromAssets (path As String, sort As Boolean)
 Populate GridView from assets or assets/sub-folder
- ShowFromBucket (path As String, sort As Boolean)
 Populate GridView from sdcard
- ShowFromMediaStore (sort As Boolean)
 Populate GridView from media store images
- ShowFromSdCard (dir As String, path As String, sort As Boolean)
 Populate GridView from sdcard
- ShowFromWeb (webStrings() As String, sort As Boolean)
 Populate GridView from web
- StopEngine
 Cancels all running and scheduled display image tasks.
 NOTE: This method doesn't shutdown if you set them.
 
 ImageLoader still can be used after calling this method.
- TextBackGroundColor (red As Int, green As Int, blue As Int)
 Sets the background color for this view.
 by default red = 0
 by default green = 0
 by default blue = 0
- TextColor2 (alpha As Int, red As Int, green As Int, blue As Int)
 Get or Sets Text Color - by default White
- isPauseOnFling As Boolean
 Whether pause ImageLoader during fling
- isPauseOnScroll As Boolean
 Whether pause ImageLoader during touch scrolling
Permissions:
- android.permission.INTERNET
- android.permission.READ_EXTERNAL_STORAGE
- android.permission.WRITE_EXTERNAL_STORAGE
Properties:
- CacheInMemory As Boolean [write only]
 Sets whether loaded image will be cached in memory.
- CacheOnDisk As Boolean [write only]
 Sets whether loaded image will be cached on disk.
- ColumnWidth As Int
 Get or Sets Specifies the fixed width for each column.
- CompressFormat As BitmaCompression
 Get or Sets the known formats a bitmap can be compressed into [ JPG or PNG ]Sets the quality of a bitmap, that can be compressed. [ 0 = low -> 100 = high ]
 by default PNG
- CompressQuality As Int
 Get or Sets the quality of a bitmap, that can be compressed. [ 0 = low -> 100 = high ]
 by default 100
- DelayBeforeLoading As Int [write only]
 Sets delay time before starting loading task. Default - no delay.
- FadeInTime As Int [write only]
 Duration of "fade-in" animation (in milliseconds)
 Whether animation should be played if image is loaded from network
 Whether animation should be played if image is loaded from disk cache
 Whether animation should be played if image is loaded from memory cache
- Friction As Boolean
 Get or Sets the amount of friction applied to flings.
- Gravity As Int [write only]
 Specifies the gravity within each cell.
- HorizontalSpacing As Int [write only]
 Defines the default horizontal spacing between columns..
- ItemHeight As Int
 Get or Sets the the size of the images will be displayed in thumbnail by default size is 480x320
- ItemWidth As Int
 Get or Sets the the size of the images will be displayed in thumbnail by default size is 480x320
- Length As Int [read only]
 Returns length
- LoadFontFromAssets As String [write only]
 Loads a new Typeface from the specified font data.
- LoadFontFromFile As String [write only]
 Loads a new Typeface from the specified font data.
- MaxAnimationVelocity As Int
 Get or Sets max animation velocity.
- NumColumns As Int
 Get or Sets the number of columns in the grid.
- PauseOnFling As Boolean [write only]
 Whether pause ImageLoader during fling
- PauseOnScroll As Boolean [write only]
 Whether pause ImageLoader during touch scrolling
- ProgressBarIndeterminate As Boolean [write only]
 Change the indeterminate mode for this progress bar.
- ProgressBarVisible As Boolean [write only]
 Set the enabled state of this view. - by default is trueChange the indeterminate mode for this progress bar.
- RemoveAt As Int [write only]
 Removes the item at the specified location from this list.
- ResetViewBeforeLoading As Boolean [write only]
 Sets whether image view will be reset before image loading start
- RoundedBitmap As Boolean [write only]
 Can display bitmap with rounded corners. - by default is false
- ScaleType As PhotoScaleTypes
 Controls how the image should be resized or moved to match the size of this ImageView.
 by default ScaleTypeFIT_XY
- ScaleTypeForRounded As ScaleType [write only]
 Controls how the RoundedBitmap should be resized or moved to match the size of this ImageView.
 by default ScaleType.FIT_CENTER
- Selection As Int
 Get or Sets the currently selected item.
- SetBorderColor As Int [write only]
 Set the border Color - by default is transparent
- SetBorderWidth As Int [write only]
 Set the border Width - by default is 0
- SetCornerRadius As Int [write only]
 Set the corner Radius - by default is 0
- SetImageOnFail As String [write only]
 Sets own icon on fail
- SetImageOnLoading As String [write only]
 Sets own icon on loading
- SetNoEffect As Boolean [write only]
 Can display bitmap with rounded corners.
 Show thumbnails with corner radius or oval. - by default is true
- ShouldOnlyAnimateFling As Boolean
 Get or Sets should only animate fling.
- ShouldOnlyAnimateNewItems As Boolean
 Get or Sets should only animate new item.
- ShowMessageError As Boolean [write only]
 Set to true if you want to display an error message.
- SimulateGridWithList As Boolean
 Get or Sets simulate grid with list.
- SmoothScrollbarEnabled As Boolean [write only]
 When smooth scrollbar is enabled, the position and size of the scrollbar thumb is computed based on the number of visible pixels in the visible items.
- StretchMode As StretchModeEnum
 Defines how columns should stretch to fill the available empty space, if any.
 Examples:
 GridView.StretchMode = GridView.StretchMode.STRETCH_SPACING
- Tag As Object
 Get or Sets this view's tag.
- TextBackGroundAlpha As Int
 Get or Sets alpha property of the view, as a value between 0 (completely transparent) and 255 (completely opaque).
 by default alpha = 0
- TextBackGroundColor2 As String [write only]
 Sets the background color for this view.
 Example:
 TextBackGroundColor2("#88666666")
- TextColor As Int
 Get or Sets Text Color - by default White
- TextGravity As Int
 Get or Sets the horizontal alignment of the text that will be used.
- TextLines As Int
 Get or Sets the TextView exactly this many lines tall.
- TextPosition As TextPositionEnum
 Get or Sets the position alignment of the text that will be used.
 param Text_Top_OutSide
 param Text_Top_Inside
 param Text_Center_Inside
 param Text_Bottom_Inside
- TextSize As Int
 Get or Sets Text Size - by default 14
- TextStyle As Int [write only]
 Sets the style in which the text should be displayed.
- TextTypeFace As TypefaceUtils
 Get or Sets the typeface and style in which the text should be displayed.
 Note that not all Typeface families actually have bold and italic variants,
 so you may need to use TextStyle(style) to get the appearance that you actually want.
- TextVisible As Boolean
 Get or Sets the visibility of the text - by default is hide
- TransitionDuration As Int
 Get or Sets transition duration.
- TransitionEffect As TransitionEffect
 Get or Sets the desired transition effect.
- Version As String [read only]
 Version of the library
- VerticalSpacing As Int [write only]
 Defines the default vertical spacing between rows.

Shahid Saeed · Jul 22, 2014

A new bug with GridView.TAG.

I am getting the following error when using Retrieving GridView.TAG:-

B4X:

videos_gridview_itemclick (java line: 499)
java.lang.ClassCastException: it.giuseppe.salvi.gridview.library.core.adapter.GridViewAdapterWrapper$ViewHolder cannot be cast to anywheresoftware.b4a.objects.collections.Map$MyMap
    at com.prcamels.videos._gridview_itemclick(videos.java:499)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:163)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:159)
    at it.giuseppe.salvi.gridview.library.core.GridViewActivityWrapper$1.onItemClick(GridViewActivityWrapper.java:153)
    at it.giuseppe.salvi.gridview.library.core.widget.gridview.GridViewWrapper.onItemClick(GridViewWrapper.java:86)
    at android.widget.AdapterView.performItemClick(AdapterView.java:298)
    at android.widget.AbsListView.performItemClick(AbsListView.java:1086)
    at android.widget.AbsListView$PerformClick.run(AbsListView.java:2855)
    at android.widget.AbsListView$1.run(AbsListView.java:3529)
    at android.os.Handler.handleCallback(Handler.java:615)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4745)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
    at dalvik.system.NativeStart.main(Native Method)
java.lang.ClassCastException: it.giuseppe.salvi.gridview.library.core.adapter.GridViewAdapterWrapper$ViewHolder cannot be cast to anywheresoftware.b4a.objects.collections.Map$MyMap

This is what I am doing:-

B4X:

Dim video_title As String = album_videos.Get("video_title")
Dim video_image As String = album_videos.Get("video_image")
Dim video_id As String = album_videos.Get("video_id")
Dim vidmap As Map
vidmap.Initialize
vidmap.Put("video_id",video_id)
GridView.Tag = vidmap
GridView.AddImageFromWeb(video_image)
GridView.SetText(vid_row, video_title)

Sub GridView_ItemClick(Position As Int, Tag As Object, Value As Object)  
    posSelected = Position    
    Dim vidmap As Map = Tag
    Log(vidmap.Get("video_id"))   
End Sub

I have tried another approach and I am getting the following error:-

B4X:

java.lang.NullPointerException
    at it.giuseppe.salvi.gridview.library.core.GridViewActivityWrapper.getTag(GridViewActivityWrapper.java:253)
    at com.prcamels.videos._gridview_itemclick(videos.java:503)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:163)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:159)
    at it.giuseppe.salvi.gridview.library.core.GridViewActivityWrapper$1.onItemClick(GridViewActivityWrapper.java:153)
    at it.giuseppe.salvi.gridview.library.core.widget.gridview.GridViewWrapper.onItemClick(GridViewWrapper.java:86)
    at android.widget.AdapterView.performItemClick(AdapterView.java:298)
    at android.widget.AbsListView.performItemClick(AbsListView.java:1086)
    at android.widget.AbsListView$PerformClick.run(AbsListView.java:2855)
    at android.widget.AbsListView$1.run(AbsListView.java:3529)


    at android.os.Handler.handleCallback(Handler.java:615)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4745)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
    at dalvik.system.NativeStart.main(Native Method)
java.lang.NullPointerException

This is what I am doing in Second Approach:-

B4X:

Dim video_title As String = album_videos.Get("video_title")
Dim video_image As String = album_videos.Get("video_image")
Dim video_id As String = album_videos.Get("video_id")
Dim vidmap As Map
vidmap.Initialize
vidmap.Put("video_id",video_id)
GridView.Tag = vidmap
GridView.AddImageFromWeb(video_image)
GridView.SetText(vid_row, video_title)

Sub GridView_ItemClick(Position As Int, Tag As Object, Value As Object)  
    posSelected = Position
    Dim vid As PhotoGridView = Sender
    Dim vidmap As Map = vid.Tag
    Log(vidmap.Get("video_id"))   
End Sub

lonleystar · Jul 24, 2014

Hi Shahid and all, the B4AGridView is updated to v3.25.

fix: Tag and minor bugs, code below.

B4X:

Sub GridView_ItemClick(Position As Int, Value As Object)

    Dim vid As PhotoGridView = Sender
   
    vidmap.Put("video_id",Position)
   
    vid.Tag = vidmap
   
    posSelected = Position

    GridView.SetText(Position,vid.Tag)
   
    GridView.SetBackgroundImage(Value)
   
End Sub

I'm really sorry for the inconvenience.

lonleystar · Jul 24, 2014

Hi I forgot to tell everybody, added: Text_Bottom_OutSide

deltacode · Jul 24, 2014

Thanks for the quick update but there is one step forward and two back.

The tag works , the outside text bottom works

Now the bad news
The SetText still updates both panels and even worse now adding images updates both panels where in 3.20 it did at least update the images in the two panels differently and correctly

lonleystar · Jul 25, 2014

deltacode said:
Thanks for the quick update but there is one step forward and two back.

The tag works , the outside text bottom works

Now the bad news
The SetText still updates both panels and even worse now adding images updates both panels where in 3.20 it did at least update the images in the two panels differently and correctly

Hi, I just added the Text_Bottom_OutSide and fix the tag and minor bugs nothing else.

lonleystar · Jul 25, 2014

Hi guys, anyone who has downloaded the version v 3.25 please re download it I made a mistake is now fix.

sorry for the inconvenience.

Shahid Saeed · Jul 25, 2014

lonleystar said:
Hi guys, anyone who has downloaded the version v 3.25 please re download it I made a mistake is now fix.

sorry for the inconvenience.

I have just downliad the 3.25 update but there are some strange things.

on first load the grid view works fine when press and move to next activity there is an-other grid view but it shows nothing when go back to first activity its show the items of second activity with titles of first activity.

now when i am using the tag option i am getting the following error on item_click

B4X:

java.lang.Exception: Sub gridview_itemclick signature does not match expected signature.
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:177)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:163)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:159)
    at it.giuseppe.salvi.gridview.library.core.GridViewActivityWrapper$1.onItemClick(GridViewActivityWrapper.java:162)
    at it.giuseppe.salvi.gridview.library.core.widget.gridview.GridViewWrapper.onItemClick(GridViewWrapper.java:86)
    at android.widget.AdapterView.performItemClick(AdapterView.java:298)
    at android.widget.AbsListView.performItemClick(AbsListView.java:1086)
    at android.widget.AbsListView$PerformClick.run(AbsListView.java:2855)
    at android.widget.AbsListView$1.run(AbsListView.java:3529)
    at android.os.Handler.handleCallback(Handler.java:615)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4745)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
    at dalvik.system.NativeStart.main(Native Method)
java.lang.Exception: Sub gridview_itemclick signature does not match expected signature.

lonleystar · Jul 25, 2014

Shahid Saeed said:

I have just downliad the 3.25 update but there are some strange things.

on first load the grid view works fine when press and move to next activity there is an-other grid view but it shows nothing when go back to first activity its show the items of second activity with titles of first activity.

now when i am using the tag option i am getting the following error on item_click

B4X:

java.lang.Exception: Sub gridview_itemclick signature does not match expected signature.
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:177)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:163)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:159)
    at it.giuseppe.salvi.gridview.library.core.GridViewActivityWrapper$1.onItemClick(GridViewActivityWrapper.java:162)
    at it.giuseppe.salvi.gridview.library.core.widget.gridview.GridViewWrapper.onItemClick(GridViewWrapper.java:86)
    at android.widget.AdapterView.performItemClick(AdapterView.java:298)
    at android.widget.AbsListView.performItemClick(AbsListView.java:1086)
    at android.widget.AbsListView$PerformClick.run(AbsListView.java:2855)
    at android.widget.AbsListView$1.run(AbsListView.java:3529)
    at android.os.Handler.handleCallback(Handler.java:615)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4745)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
    at dalvik.system.NativeStart.main(Native Method)
java.lang.Exception: Sub gridview_itemclick signature does not match expected signature.

Hi Shahid,
GridView_ItemClick(Position AsInt, Value AsObject) instead of GridView_ItemClick(Position AsInt, Tag As Object, Value AsObject)

I removed Tag As Object from the evnts

Tag get or sets work fine now.

read the post #166

Shahid Saeed · Jul 25, 2014

lonleystar said:
Hi Shahid,
GridView_ItemClick(Position AsInt, Value AsObject) instead of GridView_ItemClick(Position AsInt, Tag As Object, Value AsObject)

I removed Tag As Object from the evnts

Tag get or sets work fine now.

read the post #166

Items are getting repeated from one activity to another activity.

after using this GridView_ItemClick(Position AsInt, Value AsObject) the signature error gone.
In Tag instead of video id I am getting the item position not the video_id, or if I use this code I'm getting same video id for all items:

B4X:

Dim video_title As String = album_videos.Get("video_title")
Dim video_image As String = album_videos.Get("video_image")
Dim video_id As String = album_videos.Get("video_id")
Dim vidmap As Map
vidmap.Initialize
vidmap.Put("video_id",video_id)
GridView.Tag = vidmap
GridView.AddImageFromWeb(video_image)
GridView.SetText(vid_row, video_title)

Sub GridView_ItemClick(Position As Int, Tag As Object, Value As Object)  
    posSelected = Position
    Dim vid As PhotoGridView = Sender
    Dim vidmap As Map = vid.Tag
    Log(vidmap.Get("video_id"))  
End Sub

Shahid Saeed · Jul 25, 2014

Instead of going with Tag I have gone through a different process as below and now i am getting the individual Video Id's

I have created a Global List Variable and added the video id to it. and on item_click i have collected the Video ID through item position

B4X:

Sub Process_Globals
    Dim VideoID_TAG As List
End Sub

Sub ParseJSON(json As String)
    Dim parser As JSONParser
    parser.Initialize(json)
   
    Dim root As Map = parser.NextObject
    Dim albums As List = root.Get("albums")
    Dim actAlbum As Int = -1   
    For Each col_albums As Map In albums
        actAlbum = actAlbum +1         
        Dim album_title As String = col_albums.Get("album_title")
        VideoID_TAG.Initialize
        If actAlbum = AlbumID Then       
        Dim Videos As List = col_albums.Get("videos")
            Dim vid_row As Int = -1
            For Each album_videos As Map In Videos
            vid_row = vid_row +1
            Dim video_title As String = album_videos.Get("video_title")
            Dim video_image As String = album_videos.Get("video_image")
            Dim video_id As String = album_videos.Get("youtube_id")            
            VideoID_TAG.Add(video_id)
            'GridView.Tag = vidmap
            GridView.AddImageFromWeb(video_image)
            GridView.SetText(vid_row, video_title)   
            Next           
        Page_title.Text = album_title
        End If       
    Next   
End Sub

Sub GridView_ItemClick(Position As Int, Value As Object)       
    posSelected = Position    
    Log(Position)
    Log(VideoID_TAG.Get(Position))
    YouTube(VideoID_TAG.Get(Position))      
End Sub

Shahid Saeed · Jul 25, 2014

Now the strange thing remains in the new update, If I am moving from one activity to another the items are being repeated on every activity. Even if The activity restarts it has the repeated items.

lonleystar · Jul 26, 2014

Hi Shahid, U right I found it too, but I'm checking it to understand why because I dint change nothing just added Text_Bottom_OutSide and fix the tag that's all.

A little patience thanks.

lonleystar · Jul 30, 2014

Hi guys, B4AGridView is fixed and updated to v3.30. Please download again the lib v3.30

Sorry for the inconvenience.

deltacode · Jul 30, 2014

Thanks lonelystar, can confirm the pictures are now fixed

The SetText still repeats the text on all views on any panel/activity , can this be fixed ?

lonleystar · Jul 31, 2014

H

deltacode said:
Thanks lonelystar, can confirm the pictures are now fixed

The SetText still repeats the text on all views on any panel/activity , can this be fixed ?

Hi Deltacode, U right, I'll fix it.

Shahid Saeed · Aug 3, 2014

@lonleystar is the above issue fixed? I just want to ask one more thing, when we scroll through GridView, and move between images, it re-loads already loaded images, cannot we just load once and keep the images intact until unless we restart the activity?

lonleystar · Aug 3, 2014

Hi Shahid, if u use ( GridView.CacheInMemory = False ) it doesnt old the image in memory.

This is useful to prevents out of memory for old mobile.

Shahid Saeed · Aug 3, 2014

This is how I am using it but still When you scroll through images its reloads the images:

B4X:

GridView.CacheInMemory = False
GridView.CacheOnDisk = True

This is the working APP link you can check in both Videos and Pictures Albums while scrolling the GridView the images will start loading again:
https://play.google.com/store/apps/details?id=com.prcamels

deltacode · Aug 4, 2014

Hi lonleystar

Have you managed to get anywhere with the settext issue ? Once this is fixed i shall be donating for a great library.

Also i noticed on B4APhotoPager that somebody requested to add a bitmap, can that be added to this library as well ?

lonleystar · Aug 4, 2014

deltacode said:
Hi lonleystar

Have you managed to get anywhere with the settext issue ? Once this is fixed i shall be donating for a great library.

Also i noticed on B4APhotoPager that somebody requested to add a bitmap, can that be added to this library as well ?

Hi, for the settext I'm working to understand how I can do that for the second question yes I'm implementing the same engine like GridView and i'll implement also AddBitmap.

B4A Library [Library] B4aGridView v3.80

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