I try lots of things but I failed kindly help me with how to do this and please someone shares a complete. I also share a screenshot of the original app I making same like this app.
App description:
1:When typing or calculating on the app if the user needs the next line and show a list num
2: The most important thing is when we calculate any num can we write something in the same type ( you think it's a notepad + calculator)?
3: Also when we write and type 5 + 5 we don't need to press = equal to. they abstract and subtract automatically.
thank you so much for your support.
Related
i'm using this on push button click in Qt:
QString fileName = QFileDialog::getSaveFileName(this, tr("Save file"),
QString(),
tr("(*.csv));
it take 3-4 second to open the save Form. why? how i can improve speed?
Try to connect this slot to a QPushButton:
void MainWindow::openFD(){
QTime myopentime=QTime::currentTime();
for (int i=0;i<1000000;i++) ;//comment out this line for the real test
QString fileName = QFileDialog::getSaveFileName(this,QString(),QString(myopentime.toString("m.s.zzz")+" "+QTime::currentTime().toString("m.s.zzz"))
,tr("*.csv") );
}
Then try to run it with and without the count part.
You will see, that the count part adds some ms... without it there is not even ms (mili-second) of difference in the time shown in filename place.
So, you have to search somewhere else in your code or give us a better example.
PS:
1) You will need :
#include <QTime>
2) The line that counting is there to show you that my method works (since you will see some difference when uncomment)
Result and Answer: The problem is not on QFileDialog if this test will not give you differences but somewhere else in your code or possibly in the Window manager of your OS.
I need to use "Count Day" code for indicator.
It does work fine, but this indicator keeps previous day object till I restart MT4.
What is wrong below code?
if(day >= drowDays) {
break;}
Also you can see chart screenshot link.
You're not providing sufficient information to your problem :'(
With the limited info, what I can say is that you need to delete the graphical objects created for previous day.
Assuming your indicator will plot the latest line, then you MIGHT (again, this is a guess as there is not enough information of your code) be able to achieve it with the ObjectsDeleteAll() function at the start of your OnCalculate(). Obviously, this is not efficient, but is something you can think about.
I'm relatively new to Matlab, and I've been trying to solve my problem for ages but I'm just continuously arriving at a dead end.
I have a code which should, in theory, play 3 sounds in a random order (each order being different for each trial). Upon each sound playing the participant will be asked which sound they heard and then given feedback. I have all the code complete and working up until the random order part. I have created code that on each trial will randomly order 1,2 and 3.
Order = [1, 2, 3];
PhonemeOrder = randperm (numel(Order));
I then have a function which plays the sound/asks the questions etc. within this I have attempted switch cases statements and if else statements depending on the number that PhonemeOrder produces but the order doesnt change even when phoneme order does. I believe my problem is however that PhonemeOrder comes out like [1,2,3] or [3,1,2] which is what i wanted. but Im not sure how to get my sounds to play in the order that it shows because I am using code like...
if/ PhonemeOrder = 1;
then do this...
elseif phonemeorder = 2;
then do this...
else
do this...
Or I've tried code like
switch cases
case 1
do this
case 2
do this
case 3
do this
I'm guessing this is where i am going wrong, but i just dont know how to change it and make it work! I hope this makes sense? I just need it to play in the order that phonemeorder specifies, with the order changing on each trial.
Any help will be greatly appreciated :D
bexG,
I think you are on the right track.
The only thing you need is to use a "for-loop" to go through the array of PhonemeOrder.
for i=1:length(PhonemeOrder)
switch PhonemeOrder(i)
case 1
play the first song
case 2
play the second song
case 3
play the thrid song
end
end
I hope this will help.
Please let me know if you have any further question.
I did some research into this and couldn't really find anything, so if this is a repetitive question I apologize. but anyway I have made a CCB file in CocosBuilder and I would like to start the timeline, for example, at one second instead of playing from the beginning. Is there a way to do this? Thanks for the help guys.
Edit: i would like this to be done in the code.
I am using 2.2.1 Cocos2DX version. I think there is no option to play it from given interval. But you can tweak yourself to get it done. (Not simple one)
You have to go to CCBAnimationManager and there you get "mNodeSequences".
It is dictionary and you get difference properties there like "rotation position etc..."
values there.
Internally AnimationManager reads this value (These values are specified in your CCB)
and puts in runAction queue.
So you have to break it as you want.(Ex. 5 min timeline you have. But you want to start
from 1 min then you have run first 1 min Actions without delay and for remaining you
have properly calculate tween intervals.
It's long procedure and needs calculation. If you don't know any other simpler way try this. If you know pls let us know (Post it).
I guess I'll start by saying I am very new to B4A, and to programming in general. I have some very basic java and html exp. but that's it. I do not have any basic4ppc or really any IDE experience. Been using B4A for a few days now and can't get over the hump. Here are my noob questions:
Does having many activities (20-30+) slow down the app? Is there a downside to having a lot of activities?
I can't figure out how to scroll in the designer. I am trying to make a screen that has 25 buttons down in 1 column. However I can't scroll down to add more buttons below. I am able to add buttons programmically and in the fashion that I want (using a for loop), but is it normal to create views at runtime like this?
How do you ensure your app looks the same across all devices? Tablets? I have a scroll view that fits perfect in the emulator, but on my phone (droid x), the bottom of the scroll view is not stretched to the bottom of the phone. I use the code: scvScreen1.Initialize(100%y). Is that not right?
I have a Email screen in which is comprised of an edittext and a Send button, so that the users can send me questions from the app. However the Send button gives me this error on the 'URI =' line: "LastException java.lang.NumberFormatException: mailto:" here is the code:
Sub btnSendEmail_Click
Dim Uri As String
Uri="mailto:me#gmail.com?subject=Test Email&body=" + edtHelpEmail.Text
Dim Intent1 As Intent
Intent1.Initialize(Intent1.ACTION_VIEW,Uri
StartActivity(Intent1)
End Sub
Or is there another way to open the device's default email program?
Regarding last question, how do I copy error messages to clipboard?? I selected the red error message on the bottom right of the IDE and tried ctrl-c, but didn't work.
In B4A, what is a good method of storing persistent data? All I really need to store are some strings. Nothing fancy. These strings are to be stored locally. AI made this easy by using TinyDB.
When using the designer, how do you ensure your views are centered on all devices? For instance, I have a screen that has several rows made up of: (label, edittext, label). And I want each row to be center aligned. Do I do this programmically? I'm thinking I would have to append each row of (label, edittext, label) to a panel, then in the code center the panel. Is this correct?
That's all I got for now, but I'm sure there will be plenty more questions later.
1) The whole idea of android is to small components i.e. Apps working together, so no need to worry about opening lots of activities. Memory is very well managed behind the scenes in Android.
2) Sure. That sounds fine to me. Use the Layout designer as much as you can and then add the dynamic stuff later. It's all about striking a balance between the size of your code and the number of activities.
3) In the Designer there's an option called 'Send to UI Cloud'. This compares your app over multiple screen sizes. You can also scale your design and programmatically resize specific controls within your app in the Activity_Create Lifecycle
4) What you're doing is almost correct. I corrected your code:
Sub MailTo(StrAddress As String, StrSubject As String, StrBody As String)
Dim StrMethod As String = "Sub MailTo(StrAddress As String, StrSubject As String, StrBody As String)"
Try
Dim StrUri As String
StrUri = "mailto:" & StrAddress & "?subject=" & StrSubject & "&body=" & StrBody
Dim Intent As Intent
Intent.Initialize(Intent.ACTION_VIEW, StrUri)
StartActivity(Intent)
Catch
If BlnLoudExceptions Then CdException.Show(StrClass, StrMethod, LastException)
End Try
End Sub
I tend to have a code module called CdIntent.bas for these functions as it both keeps the project organised and makes it easier to implement the same functionality across projects.
Then to call you would use
CdIntent.MailTo("me#yes.no", "Subject!", "Body!")
5) I have a file called CdException.bas
Sub Process_Globals
'These global variables will be declared once when the application starts.
'These variables can be accessed from all modules.
End Sub
Sub Show(StrClass As String, StrMethod As String, Ex As Exception)
LogColor("Exception: " & Ex.Message & " - Class: " & StrClass & " - Method: " & StrMethod, Colors.Magenta)
End Sub
and then wrap functions in the following way:
Sub FunctionName(...Parameters...) as Int
Dim StrMethod As String = "Sub Sleep(LngMilliseconds As Long)"
Dim IntResult As Int = 0
Try
[code here inc. IntResult = ???]
Catch
If BlnLoudExceptions Then CdException.Show(StrClass, StrMethod, LastException)
End Try
Return IntResult
End Sub
BlnLoudExceptions is a global boolean that you'd declare in
Process_Globals that you can switch on an off exception logs.
StrClass is a global String that you'd declare in Process_Globals
that contains the name of the class e.g. "CdIntent.bas"
The exceptions then appear in magenta in the log screen along with the method name and class in which they occurred allowing you to home in on them.
6) I have a table in an SQLLite database called TabletSettings, which has two TEXT colums called 'Name' and 'Value'. It works well and gets you into a (what I think is a) good habit of always having a database available to your app from the get-go.
7) I'll get back to you on this as I haven't done this before.
Until then, the following thread will help you in the B4A forum http://www.basic4ppc.com/android/forum/threads/convert-integer-to-dip.18800/
I agree with Jim's point but will attempt to answer 1.
I'm new to android myself but as I understand it activities on the whole are only running when active. Unless you are using the app to continuously do something there is only one activity at a time. The number of activities is likely to affect the ram available more than anything. Lastly it might be worth walking first rather than running so to speak but trying a single and then add multiple activities.
You could try adding a ListView or ScrollView where the items are the buttons, this seems to be the std way of doing things otherwise a tabbed view.