B4A Library [Class] SearchView - More powerful alternative to AutoCompleteEditText

Erel · Jul 8, 2012

Edit: better to use B4XDialog + B4XSearchTemplate

SearchView is made of an EditText and ListView. When the user enters text into the EditText the ListView shows the items that start with this text or that contain the text (in this order).

This view is useful for allowing the user to select an item from many items.

Advantages over AutoCompleteEditText:

SearchView uses an internal index that is built when you call SetItems. This allows it to quickly find the matches.
SearchView also shows items that contain the input text (not just prefixes).
The class code can be further customized as needed.

Tutorial about handling large, searchable lists: https://www.b4x.com/android/forum/t...e-list-with-searchview-b4xserializator.61872/

Smee · Jan 20, 2013

Erel said:
Where is UpdateProgressBar sub?

in the Main Module

B4X:

Sub UpdateProgressBar
   ProgressBar1.Progress= pbCounter
End Sub

Erel · Jan 20, 2013

How many items are in the list? The code calls DoEvents every 100 items.

Smee · Jan 20, 2013

in main i also have this sub

B4X:

Sub InitProgressBar
   Dim rflBar As Reflector
   rflBar.Target = ProgressBar1
   rflBar.RunMethod2("setMax", pbIndexMax, "java.lang.int")
End Sub

which is called from

B4X:

Public Sub SetItems(Items As List) As Object
Main.pbIndexMax=Items.Size
CallSub(Main,"InitProgressBar")

Smee · Jan 20, 2013

just over 12100

Smee · Jan 20, 2013

i tried taking the conditional if out so the doevents is called every time but it made no difference.
the progressbar shows as a thin line

Erel · Jan 20, 2013

Are you sure that InitProgressBar is only called after pbIndexMax is set?

Smee · Jan 21, 2013

this is the code as it now stands

B4X:

Public Sub SetItems(Items As List) As Object
Main.pbIndexMax=Items.Size
CallSub(Main,"InitProgressBar")

   Dim startTime As Long 
   startTime = DateTime.Now
   'ProgressDialogShow2("Building index...", False)       remarked out
   Dim noDuplicates As Map
   noDuplicates.Initialize
   prefixList.Clear
   substringList.Clear
   Dim m As Map
   Dim li As List
   For i = 0 To Items.Size - 1
      Main.pbIndexMax=i
      CallSub(Main,"UpdateProgressBar")
      'If i Mod 100 = 0 Then                     remarked out
      DoEvents

B4X:

mAIN mODULE

Sub Process_Globals
   'These global variables will be declared once when the application starts.
   'These variables can be accessed from all modules.
   Dim SQL As SQL
   Dim index As Object
   Dim pbIndexMax,pbCounter As Long
End Sub

Sub InitProgressBar
   Dim rflBar As Reflector
   rflBar.Target = ProgressBar1
   rflBar.RunMethod2("setMax", pbIndexMax, "java.lang.int")
End Sub

Sub UpdateProgressBar
   ProgressBar1.Progress= pbCounter
End Sub

tHE progressbar is built with designer and called ProgressBar1

Erel · Jan 21, 2013

The activity is considered paused until Activity_Create ends. This means that you cannot call an activity with CallSub from Activity_Create. You will need to move the loading code to Activity_Resume.

Note that there is not reason to call this method every iteration. It is better to call it every 100 iterations.

Smee · Jan 21, 2013

Ok,
still not working

in Main Module i have created the following

B4X:

Sub timer1_Tick
   Timer1.Enabled=False
   LoadProductList
   BuildDisplayTable   
End Sub

the code in timer tick IS executed a second after Activity create is finished

Timer1.Enabled=True

B4X:

Public Sub SetItems(Items As List) As Object
Main.pbIndexMax=Items.Size
CallSub(Main,"InitProgressBar")

   Dim startTime As Long 
   startTime = DateTime.Now
'   ProgressDialogShow2("Building index...", False) remmed out
   Dim noDuplicates As Map
   noDuplicates.Initialize
   prefixList.Clear
   substringList.Clear
   Dim m As Map
   Dim li As List
   For i = 0 To Items.Size - 1
      If i Mod 100 = 0 Then DoEvents
      Main.pbIndexMax=i
      CallSub(Main,"UpdateProgressBar")

all i see on the screen is a thin line where the progressbar should be
i have set the size to massive in the designer
top 300
width 660
height 300
left 40
enabled=true
visible =true
indeterminate = False

i have put a stop line on the line
ProgressBar1.Progress= pbCounter
in main and it is executing.

i have put the progressbar on a panel but it still just shows as a thin line

Smee · Jan 21, 2013

I added another progressbar to the activity with the designer but i get the same thing. a thin line

I am posting a screenshot

Erel · Jan 21, 2013

Can you upload your project?

Smee · Jan 21, 2013

might be better to email it. where can i send it

Erel · Jan 21, 2013

You can send it to: erel@basic4ppc.com

Smee · Jan 23, 2013

Ahh I see my problem there.

Ok I removed the Dim pbCounter As Long from Globals

And changed this

B4X:

            If i Mod 100 = 0 Then DoEvents
            Main.pbcounter=i
            CallSub(Main,"UpdateProgressBar")
            Dim item As String

So I now get a run of numbers correctly when logging.

However I still just get a thin line as if the height is about 5 dips high

12103
12104
12105
12106
12107
12108
12109
12110
12111
12112
12113
12114
12115
12116
12117
12118
12119
12120
12121
12122
12123
12124
12125
12126
12127
12128
12129
12130
12131
12132
12133
Index time: 11777 ms (12134 Items)

Erel · Jan 23, 2013

The progress bar in Android 4 is a thin line. Does it get updated?

Smee · Jan 23, 2013

its impossible to see, but the counter ticks over ok

this sub fires correctly

B4X:

Sub UpdateProgressBar
   Log(pbCounter)
   ProgressBar1.Progress= pbCounter
End Sub

as you see from the log i posted

Erel · Jan 23, 2013

You will need to upload your project (or a working subset of it)...

Smee · Jan 24, 2013

ok i have modified the original demo program to show what is happening

Erel · Jan 25, 2013

You should not initialize views added with the designer (ProgressBar1).

Smee · Jan 26, 2013

Thanks Erel,

All that for a stupid mistake :BangHead:

The thing is i only added that after i found the program was not working. The original error was elsewhere, got fixed but still would not work cos i left that line in.

Is there a way to increase the height of the progressbar?

B4A Library [Class] SearchView - More powerful alternative to AutoCompleteEditText

Attachments

Well-Known Member

B4X founder

Well-Known Member

Well-Known Member

Well-Known Member

B4X founder

Well-Known Member

B4X founder

Well-Known Member

Well-Known Member

Attachments

B4X founder

Well-Known Member

B4X founder

Well-Known Member

B4X founder

Well-Known Member

B4X founder

Well-Known Member

Attachments

B4X founder

Well-Known Member

Similar Threads

Privacy & Transparency

Privacy & Transparency