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.

lonleystar · Aug 4, 2014

Shahid Saeed said:
@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?

Hi, I'll check it.

Shahid Saeed · Aug 12, 2014

lonleystar said:
Hi, I'll check it.

A Strange thing just hapening, I am using GridView on many different activities but on some activities I am getting the following error, even the code is same on all activities:

B4X:

java.lang.IndexOutOfBoundsException: Invalid index 4, size is 0
    at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
    at java.util.ArrayList.get(ArrayList.java:304)
    at anywheresoftware.b4a.objects.collections.List.Get(List.java:117)
    at com.prcamels.videos._gridview2_itemclick(videos.java:641)
    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)

lonleystar · Aug 12, 2014

Shahid Saeed said:

A Strange thing just hapening, I am using GridView on many different activities but on some activities I am getting the following error, even the code is same on all activities:

B4X:

java.lang.IndexOutOfBoundsException: Invalid index 4, size is 0
    at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
    at java.util.ArrayList.get(ArrayList.java:304)
    at anywheresoftware.b4a.objects.collections.List.Get(List.java:117)
    at com.prcamels.videos._gridview2_itemclick(videos.java:641)
    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)

Hi, Thanks to report this issue I'll check.

aviario · Aug 20, 2014

Hi, first of all congratulate you on this tool that facilitates the work I am developing an application to view the photos that are hosted on a shared folder in dropbox, there would be the possibility that instead of passing all directions photo pass only the folder .
example: https://www.dropbox.com/sh/33xsnove7jytee2/AAB5aWV69t-Ue9LvrzicBfRCa/paco_db/Lipocromos sin factor

Thank

lonleystar · Aug 20, 2014

aviario said:
Hi, first of all congratulate you on this tool that facilitates the work I am developing an application to view the photos that are hosted on a shared folder in dropbox, there would be the possibility that instead of passing all directions photo pass only the folder .
example: https://www.dropbox.com/sh/33xsnove7jytee2/AAB5aWV69t-Ue9LvrzicBfRCa/paco_db/Lipocromos sin factor

Thank

Hi, I think U should use ShowFromWeb Example:

fromWeb = Array As String("https://www.dropbox.com/sh/33xsnove...EqfBTWkpa/paco_db/Lipocromos sin factor/1.jpg","etc","etc")

PhotoPager.ShowFromWeb(fromWeb)

aviario · Aug 21, 2014

Thanks for your attention, I have already tried that but it forces me to put every direction and otherwise shows me all, I was not the direction of the photo because the application automatically goes to dropbox and other applications is that shows that in this case would B4aGridView I think is a very good tool

Shahid Saeed · Aug 25, 2014

aviario said:
Thanks for your attention, I have already tried that but it forces me to put every direction and otherwise shows me all, I was not the direction of the photo because the application automatically goes to dropbox and other applications is that shows that in this case would B4aGridView I think is a very good tool

Since you are loading Images through Web; providing the folder link won't load images in that folder, you will need to provide separate url for each image. The best workaround is to use the DropBox API and fetch folder contents as JSON or text and combine it with ShowFromWeb(URL) this way you can achieve what you need.

You can find DropBox API here: https://code.google.com/p/dropbox-php/wiki/Dropbox_API

aviario · Aug 25, 2014

Reids · Aug 25, 2014

Hello can I request feature that add ribbon to corner of grind (top right) or (top left), for example placed item with NEW, POPULAR, HOT ribbon something like this?

tuhatinhvn · Aug 25, 2014

why every body can use this libary when click item i must wait 10-20s to load ???

Use load image from web?
ANy body fix it? very bad

lonleystar · Aug 26, 2014

Reids said:
Hello can I request feature that add ribbon to corner of grind (top right) or (top left), for example placed item with NEW, POPULAR, HOT ribbon something like this?

Hi, This is a good idea I'll try it.

lonleystar · Aug 26, 2014

tuhatinhvn said:
why every body can use this libary when click item i must wait 10-20s to load ???

Use load image from web?
ANy body fix it? very bad

Hi, did U check your connection if it is slow.

Douglas Farias · Aug 26, 2014

@lonleystar this lib have os limitation ?
Android 2.3 + etc

lonleystar · Aug 26, 2014

Douglas Farias said:
@lonleystar this lib have os limitation ?
Android 2.3 + etc

Hi, No.

Douglas Farias · Aug 27, 2014

Bugs Reports
Your last lib version
-give out of memory
-dont show the grid

Douglas Farias · Aug 28, 2014

Another sugestion importante is remove all views
gridview.RemoveAll

Douglas Farias · Aug 28, 2014

how can i remove all images for now?

i m trying to use this

B4X:

    If    GridView.Length > 0 Then
    For i=0 To  GridView.Length - 1
    GridView.RemoveAt = i
    Next
    End If

but not sucess have 4 images at screen and i have this error log

java.lang.IndexOutOfBoundsException: Invalid index 2, size is 2

the log of (GridView.Length) is 4

lonleystar · Aug 28, 2014

Douglas Farias said:
how can i remove all images for now?

i m trying to use this

B4X:

If GridView.Length > 0 Then For i=0 To GridView.Length - 1 GridView.RemoveAt = i Next End If

but not sucess have 4 images at screen and i have this error log

the log of (GridView.Length) is 4

Hi, in a few days comes a new update also B4APhotoPager new update as I promised be patience.
Thanks in advance.

Douglas Farias · Sep 3, 2014

@lonleystar
hi man, can you fix the click on image speed on version 3.2?
the version 3.3 dont work here, the 3.2 work perfect but the click is very slow *-*
Sub GridView_ItemClick(Position As Int, Tag As Object, Value As Object)
this is very slow you click and need wait 7 - 15 seconds *-*

can u update only this for now? i need this =( i m only waiting this *-*

lonleystar · Sep 4, 2014

Douglas Farias said:
@lonleystar
hi man, can you fix the click on image speed on version 3.2?
the version 3.3 dont work here, the 3.2 work perfect but the click is very slow *-*
Sub GridView_ItemClick(Position As Int, Tag As Object, Value As Object)
this is very slow you click and need wait 7 - 15 seconds *-*

can u update only this for now? i need this =( i m only waiting this *-*

Hi, I'm fixing it.

B4A Library [Library] B4aGridView v3.80

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