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Android Question Downsampling image due to lack of memory.
- Thread starter Douglas Farias
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I'm sure that I didn't say that you just add this attribute and forget about memory issues...
These messages mean that there wasn't enough memory available to load the bitmap so the bitmap was downsampled. Are you using LoadBitmapSample to load the images?
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Everything that works well for me, I always think that it comes from you Erel haha, sorry for that
(kidding)@ ilan12041981: Hi, please note that the manifest trick does work only for Android version > = 3 (SDK 11) as I understand.
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sdk 11 and above right?
what can i do to free memory ?
i am only loading image to a imageview everytime its been clicked
what would be the best way to do it?
i have 59 imageviews and everytime a imageview is clicked i change his backgorund image
i have decleared the image ("im") in globals
this is my code:
what can i do to free memory ?
i am only loading image to a imageview everytime its been clicked
what would be the best way to do it?
i have 59 imageviews and everytime a imageview is clicked i change his backgorund image
i have decleared the image ("im") in globals
this is my code:
B4X:
Sub img_Click
Try
Dim buchstabe As String
'Dim hleft As Button
'hleft.Initialize ("hleft")
Dim str As String
im = Sender
str = im.Tag
If hexcolor = 1 Then
'hleft = hex1
buchstabe = "a" '0|10|a"
Else If hexcolor = 2 Then
'hleft = hex2
buchstabe = "b" '0|02|b"
Else If hexcolor = 5 Then
'hleft = hex3
buchstabe = "c"
Else If hexcolor = 6 Then
'hleft = hex4
buchstabe = "d"
Else If hexcolor = 3 Then
'hleft = hex5
buchstabe = "e"
End If
'Try
' clickmp2.Play
'Catch
' Log("clickmp2.Play")
'End Try
If str.SubString2(0,1) = "0" Then 'nicht besetzt
' If hleft.Text > 0 Then
im.Tag = "1" & str.SubString2(1,4) & buchstabe 'jetzt besetzt
im.Bitmap = LoadBitmap(File.DirAssets, "hex" & hexcolor & ".png")
im.Gravity = Gravity.FILL
' hleft.Text = NumberFormat(hleft.Text - 1 ,1,0)
'start check
Dim searchstr As String
Dim found As Boolean
found = False
searchstr = ""
For i = 0 To chklist1.Size - 1
searchstr = chklist1.Get(i)
If searchstr = (str.SubString2(2,4) & buchstabe) Then
found = True
chklist1.RemoveAt(i)
Exit
End If
Next
If found = False Then
chklist1.Add(str.SubString2(2,4) & buchstabe)
End If
If chklist1.Size = 0 Then
gameend
End If
Else
im.Tag = "0" & str.SubString2(1,4) 'jetzt besetzt
im.Bitmap = LoadBitmap(File.DirAssets, "dot1.png")
im.Gravity = Gravity.CENTER
If str.Contains("a") Then
' hex1.Text = NumberFormat(hex1.Text + 1 ,1,0)
buchstabe = "a"
Else If str.Contains("b") Then
' hex2.Text = NumberFormat(hex2.Text + 1 ,1,0)
buchstabe = "b"
Else If str.Contains("c") Then
' hex3.Text = NumberFormat(hex3.Text + 1 ,1,0)
buchstabe = "c"
Else If str.Contains("d") Then
' hex4.Text = NumberFormat(hex4.Text + 1 ,1,0)
buchstabe = "d"
Else If str.Contains("e") Then
' hex5.Text = NumberFormat(hex5.Text + 1 ,1,0)
buchstabe = "e"
End If
Dim searchstr2 As String
Dim found2 As Boolean
found2 = False
searchstr2 = ""
For i = 0 To chklist1.Size -1
searchstr2 = chklist1.Get(i)
If searchstr2 = (str.SubString2(2,4) & buchstabe) Then
found2 = True
chklist1.RemoveAt(i)
Exit
End If
Next
If found2 = False Then
chklist1.Add(str.SubString2(2,4) & buchstabe)
End If
If chklist1.Size = 0 Then
gameend
End If
' codetosend = codetosend.SubString2(0,codetosend.Length - 2)
End If
Label1.Text = chklist1.Size
Catch
Log("")
End Try
End Sub
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In my opinion you are using too many imageviews for one app. You can make some optimization for more free memory.
Instead of Loadbitmap, you can use Loadbitmapsample. Copying all bitmap samples to one scrollview of a panel, you can show all pictures in one panel( I don't know what you want to do. It's only a suggestion)
I got same error in my latest app, then I used such optimization and error has been solved.
This is my game that I solved memory problem
https://play.google.com/store/apps/details?id=com.eem.marka
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thanx strat i tried it and no success
i create only 5 imageviews and load the bitmap to them then i just use for every other imageview the same bitmap without loading a new bitmap
like:
im1.bitmap = loadbitmapsample(...,...,54dip,54dip)
then i use imageview1.bitmap = im1.bitmap
no more loadbitmap but still so success
in android 4 i dont have any problems only in sdk 10 and i would like to change the min sdk to the sdk that use the manifest trick bsnqt said
after i use this trick i dont have any problems in android 4.1.2 and i dont have a device with sdk11 so i cannot test if sdk11 will do this menifest trick
like he said
i create only 5 imageviews and load the bitmap to them then i just use for every other imageview the same bitmap without loading a new bitmap
like:
im1.bitmap = loadbitmapsample(...,...,54dip,54dip)
then i use imageview1.bitmap = im1.bitmap
no more loadbitmap but still so success
in android 4 i dont have any problems only in sdk 10 and i would like to change the min sdk to the sdk that use the manifest trick bsnqt said
after i use this trick i dont have any problems in android 4.1.2 and i dont have a device with sdk11 so i cannot test if sdk11 will do this menifest trick
like he said
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i go need use 100+ imageviews how can i?
all user can upload photos and it return in thumb images to app
all user can send 100 photos it is not possible on b4a ?
all user can upload photos and it return in thumb images to app
all user can send 100 photos it is not possible on b4a ?
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mmmmh my App, in my smarth working but, if I test it into aVirtual Device (7" WSVGA Tablet), Now, give me the error of Memory.
and the Game Screen is Stopped into avvise (ToastMessageShow command).
First, It working into this Virtual Device, but now the Game have more implementation and grahics object.
Into Virtual Device of my Smartphone, i dont hav any problem.
The Immage are into DirAssets and are load with the LoadBitmap command.
I've a big DB (13MB) when transfert of DirAssets into DirInternal, for reading.
I've insert a bsnqt trick into a manifest... but nothing, not work in this device... I hope when the errors is cause to Virtual Device
and the Game Screen is Stopped into avvise (ToastMessageShow command).
First, It working into this Virtual Device, but now the Game have more implementation and grahics object.
Into Virtual Device of my Smartphone, i dont hav any problem.
The Immage are into DirAssets and are load with the LoadBitmap command.
I've a big DB (13MB) when transfert of DirAssets into DirInternal, for reading.
I've insert a bsnqt trick into a manifest... but nothing, not work in this device... I hope when the errors is cause to Virtual Device
Last edited:
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I have the same memory problem. I have 2 activities with imageviews that are loaded via loadbitmapsample. After number of switches between activities I get "Downsampling image due to lack of memory".
To leave an activities I use Activity.RemoveAllviews and Activity.finish.
At second activity I use the function:
Sub
GetFreeMemory As Long
Dim jo AsJavaObject
Return jo.InitializeStatic("java.lang.Runtime").RunMethodJO("getRuntime", Null).RunMethod("totalMemory", Null)
End Sub
to see the memory usage.
Each time I switch to second activity the memory usage is growing and when it achives the number 62853104(62MB I assume) the "Downsampling image due to lack of memory" appears. It looks like Activity.RemoveAllviews and Activity.finish do not free the memory. What is the problem?
To leave an activities I use Activity.RemoveAllviews and Activity.finish.
At second activity I use the function:
Sub
GetFreeMemory As Long
Dim jo AsJavaObject
Return jo.InitializeStatic("java.lang.Runtime").RunMethodJO("getRuntime", Null).RunMethod("totalMemory", Null)
End Sub
to see the memory usage.
Each time I switch to second activity the memory usage is growing and when it achives the number 62853104(62MB I assume) the "Downsampling image due to lack of memory" appears. It looks like Activity.RemoveAllviews and Activity.finish do not free the memory. What is the problem?
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I have tested in release mode and it looks OK. The memory usage grows from 9 MB at start of application and stops on 13 MB. So the problem of memory usage is in debug mode. I hope it is fixed in B4A v4.0.
By the way: The function GetFreeMemory shows indeed the memory usage of the application or shows available free memory as goes from its name?
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I see this error all the time when rapid debugging my main app. It is a remote control app with 50+/- buttons that all use a custom image.
Works fine in release, and even in rapid debug it usually doesn't happen until after I've run the app a few times.
I'm not too concerned about it since it works fine in release but figured I'd mention it here if it would do any good towards some kind of fix.
Works fine in release, and even in rapid debug it usually doesn't happen until after I've run the app a few times.
I'm not too concerned about it since it works fine in release but figured I'd mention it here if it would do any good towards some kind of fix.
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I don't recall getting a beta invitation but may have missed it. I renewed my Enterprise license on April 24, 2013, so I would have expected an invitation. With that in mind, renewing the enterprise version at the discounted price does reset the two years of updates, correct? I can wait for the final release since it's supposed to be soon.
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