B4A Class [custom view] GifViewer

Better implementation: https://www.b4x.com/android/forum/threads/b4x-b4xgifview-cross-platform-animated-gif-view.118550/

Simple view that shows an animated gif. Based on agraham's GifDecoder library.

The animated gifs included in this example are from giphy.com. I'm not sure whether they can be used commercially or not.

Tip: B4J ImageView supports animated gifs.

V1.20 - Images are cached once loaded. You need to add the following variable to the Main module:

Sub Process_Globals
   Public GifsCache As Map
End Sub

 

[Erel]

I've uploaded a new version. You should call GifViewer1.CallFromResume from Activity_Resume. This allows the animation to continue after activity is resumed.

While the examples work properly in debug mode they look better in release mode.

 

[Erel]

Example of using it in a CustomLayoutDialog (Dialogs library):

 

[LucaMs]

Copying updated assets files (4)
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
java.lang.OutOfMemoryError
at android.graphics.Bitmap.nativeCreate(Native Method)
at android.graphics.Bitmap.createBitmap(Bitmap.java:882)
at android.graphics.Bitmap.createBitmap(Bitmap.java:906)
at anywheresoftware.b4a.agraham.gifdecoder.GifDecoder.SetPixels(GifDecoder.java:298)
at anywheresoftware.b4a.agraham.gifdecoder.GifDecoder.SetPixels(GifDecoder.java:396)
at anywheresoftware.b4a.agraham.gifdecoder.GifDecoder.ReadImage(GifDecoder.java:805)
at anywheresoftware.b4a.agraham.gifdecoder.GifDecoder.ReadContents(GifDecoder.java:672)
at anywheresoftware.b4a.agraham.gifdecoder.GifDecoder.Read(GifDecoder.java:559)
at anywheresoftware.b4a.agraham.gifdecoder.GifDecoder.Load(GifDecoder.java:211)
at b4a.example.gifviewer._setgif(gifviewer.java:64)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:710)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:339)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:249)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:139)
at b4a.example.main.afterFirstLayout(main.java:102)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:149)
at android.app.ActivityThread.main(ActivityThread.java:5257)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:610)
at dalvik.system.NativeStart.main(Native Method)
** Activity (main) Resume **


Tablet, 7.70 Gb free (your first example).

 

[LucaMs]

java.lang.OutOfMemoryError

It is Source.gif (app crashes even if If I use GifViewer3 only)

 

[Erel]

Use a smaller gif file or set android:largeHeap to true.

 

[LucaMs]

android:largeHeap

This was enough but... I flipped my tablet (then restated Activity_Create) and crash again. Somewhere something does not free memory.


P.S. DisposeFrames?

 

[Erel]

Probably. I will check it.

 

[Erel]

V1.20 is released. The decoded frames are cached. Note that you need to add the following variable to the main module:

Sub Process_Globals
   Public GifsCache As Map
End Sub

 

[omarruben]

Is it possible to create ,by code, a new gifviewer object from the cache???, I have already load a few gifs, then I want to create a random gifviewer-objects without loading again from the file.

 

[Erel]

Create a layout file with a single custom view and load it whenever you want to add the view programmatically.

How to add Custom Views programmatically

 

[Mike1970]

Hi everyone, someone knows whats the problem here?
i jsut copied the class and loaded my gif


Error occurred on line: 63 (Main)
java.lang.RuntimeException: Class instance was not initialized (gifviewer)
at anywheresoftware.b4a.debug.Debug.shouldDelegate(Debug.java:241)
at b4a.example.gifviewer._setgif(gifviewer.java:59)
at b4a.example.main._activity_create(main.java:450)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:735)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:360)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:260)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at b4a.example.main.afterFirstLayout(main.java:104)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loop(Looper.java:207)
at android.app.ActivityThread.main(ActivityThread.java:6020)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:936)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:797)

 

[Erel]

Have you added it with the designer?

 

[Soham Korade]

App not running
java.lang.ClassNotFoundException: <>$gifviewer
Can anyone please help me out?

 

[Erel]

Does it happen with the example from the first post?

 

[Soham Korade]

Does it happen with the example from the first post?

No, but somehow I managed to get through. Thanks.