HELP PLEASE! - Randomly generate sound from onClick and onShake events? - Android Software Development

So I have a array of around 8 files in array.clm specified like this :
<?xml version="1.0" encoding="utf-8"?>
<resources>
<integer-array name="myArray">
<item>1</item>
<item>2</item>
<item>3</item>
<item>4</item>
<item>5</item>
<item>6</item>
<item>7</item>
<item>8</item>
</integer-array>
</resources>
and basically I want to play a different sound randomly based on an onClick or onShake event...I having the Listeners setup and working and I'm using MediaPlayer mp.start() to play them successfully (which seems it will only take one int at a time...The problem is
1. I'm having a bit of trouble converting the whole array to be specified by one string such as:
String soundArrayString = getArray(R.array.myArray); (I know this will not work, just trying to paint a picture )
2. Getting one of the items from the array randomly as the randomocity is continuously cycling through (if necessary)...
3. Using that randomly called item in the array to play the corresponding sound (String to int technique I just can't seem to understand)
Here's my code so far without any random or array codes (I've tried a lot and nothing is working):
ImageButton testbutton = (ImageButton)findViewById(R.id.button1);
testbutton.setOnClickListener(new OnClickListener() {
MediaPlayer mp = MediaPlayer.create(Project1.this,
R.raw.sound1);
public void onClick(View v) {
mp.seekTo(0);
mp.start();

Related

Simulate Button Click

Hi,
I am trying to simulate a PictureBox.Click event. I have searched these forums and the ones on MSDN with many different combinations of search terms.
However I cannot find anything!
Basically what I am trying to achieve is to fire the picturebox's click event from within my code. What I have read so far seems to indicate that I need to make a call to SendMessage (COM interop?) to actually make windows perform the click.
This is for the compact framework version 1.0.
Any help you can give would be great because this is all very new to me, I'm a web application developer by trade so i'm a fish out of water on this one!
OK, the other method that I am investigating is the use of the mouse_event as demonstrated in this article by Daniel Moth.
However I am struggling to find the namespace Win32Api anywhere in the framework so I'm struggling with that also.
*Update*
I have been able to simulate a click using mouse_event in a call to the coredll using the following code:
Code:
[DllImport("coredll")]
static extern bool SetCursorPos(int X, int Y);
[DllImport("coredll")]
static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint dwData, int dwExtraInfo);
[Flags]
public enum MouseEventFlags
{
LEFTDOWN = 0x00000002,
LEFTUP = 0x00000004,
MIDDLEDOWN = 0x00000020,
MIDDLEUP = 0x00000040,
MOVE = 0x00000001,
ABSOLUTE = 0x00008000,
RIGHTDOWN = 0x00000008,
RIGHTUP = 0x00000010
}
bool tempVal = SetCursorPos(x, y);
mouse_event((uint)MouseEventFlags.LEFTDOWN, 0, 0, 0, 0);
mouse_event((uint)MouseEventFlags.LEFTUP, 0, 0, 0, 0);
however I have one outstanding problem (that I know of!).
I am struggling to capture the corrext X and Y co-ordinates of the control. I have tried many different methods and they all return values of 0 for both axis.
How do you guys do it?
Many Thanks
I haven't answered till now since I don't know .NET
But since you found your way to using native APIs I think I can help you.
This is how I would do it in C/C++:
Code:
RECT wndRect; //this is a structure that contains window top, left, bottom and right coordinates.
GetWindowRect(FindWind(L"[I]window class[/I]", L"[I]window name[/I]"), &wndRect);
x = wndRect.left + 1; //add 1 to window position to make sure the click is inside
y = wndRect.top + 1;
GetWindowRect returns the window position in screen coordinates for top left and bottom right corners.
For FindWindow to work you need to know the class and name of the window you want to find. You can find them using a utility called SPY++ which comes with any Microsoft C++ compiler.
The class is window type (so it will probably be something like 'PictureBox' or 'Image') and window name is most likely blank.
Hope this helps.
Thanks fo your help
I don't know if your code would have done the trick or not but I managed to work my way through the different class definitions to find what i needed.
Code:
int x = selectedButton.PointToScreen(selectedButton.Bounds.Location).X + 2;
int y = selectedButton.PointToScreen(selectedButton.Bounds.Location).Y + 2;
This still doesn't work but I really don't have time to work out why, all I know is that the call to SetCursorPos() returns false. I know the mouse_event code works because if I position the cursor over the Start button it opens the menu.
Time is of an essence so for now I'm just going to have to drop this and pray that I have time to finish this when towards the end of my project.
/me thinks writing my first Mobile 5.0 application in 4 days (I'm a web application developer by trade) was bad planning on the management's fault anyway
Thanks for your input though
use this method signature:
[DllImport("coredll")]
public static extern void mouse_event(int dwFlags, int dx, int dy, int dwData, int dwExtraInfo);
int instead of uint or long.
For me it worked.

Set Device Time from Server

Hi,
Does anybody know how to pull the time from a server and use that time to update the devices clock?
I want to lock the Clock down on the device so the best way to ensure the time is correct is to sync it with a server.
I'm using VB.net.
Give this a spin.
It sets the get the UTC time, from http://www.timeapi.org/ , but have a look at the site to see what else it can do.
Your device should deal with your timezone offset from UTC automatically.
I used .NET Reflector to translate into VB from C#, hence the odd definition of some variables.
Code:
Public Structure SYSTEMTIME
Public wYear As UInt16
Public wMonth As UInt16
Public wDayOfWeek As UInt16
Public wDay As UInt16
Public wHour As UInt16
Public wMinute As UInt16
Public wSecond As UInt16
Public wMilliseconds As UInt16
End Structure
Declare Function GetSystemTime Lib "CoreDll.dll" _
(ByRef lpSystemTime As SYSTEMTIME) As UInt32
Declare Function SetSystemTime Lib "CoreDll.dll" _
(ByRef lpSystemTime As SYSTEMTIME) As UInt32
Private Shared Sub Main(ByVal args As String())
Dim Buffer As Byte() = New Byte(&H19 - 1) {}
Dim DateItems As String() = New String(8 - 1) {}
Dim Separators As Char() = New Char() { "-"c, "-"c, "T"c, ":"c, ":"c, "+"c, ":"c }
Dim Now As New SYSTEMTIME
Program.GetSystemTime((Now))
Dim ResponseStream As Stream = WebRequest.Create("http://www.timeapi.org/utc/now").GetResponse.GetResponseStream
ResponseStream.Read(Buffer, 0, &H19)
ResponseStream.Close
DateItems = Encoding.UTF8.GetString(Buffer, 0, &H19).Split(Separators)
Now.wYear = Convert.ToUInt16(DateItems(0))
Now.wMonth = Convert.ToUInt16(DateItems(1))
Now.wDay = Convert.ToUInt16(DateItems(2))
Now.wHour = Convert.ToUInt16(DateItems(3))
Now.wMinute = Convert.ToUInt16(DateItems(4))
Now.wSecond = Convert.ToUInt16(DateItems(5))
Now.wMilliseconds = 0
Program.SetSystemTime((Now))
End Sub
The original C# code is here. You will have to convert the C# 'using' statements to VB 'Imports'
Code:
using System;
using System.Net;
using System.Text;
using System.IO;
using System.Runtime.InteropServices;
namespace GetTime
{
class Program
{
[DllImport("coredll.dll")]
private extern static void GetSystemTime(ref SYSTEMTIME lpSystemTime);
[DllImport("coredll.dll")]
private extern static uint SetSystemTime(ref SYSTEMTIME lpSystemTime);
private struct SYSTEMTIME
{
public ushort wYear;
public ushort wMonth;
public ushort wDayOfWeek;
public ushort wDay;
public ushort wHour;
public ushort wMinute;
public ushort wSecond;
public ushort wMilliseconds;
}
static void Main(string[] args)
{
byte[] Buffer = new byte[25];
string DateString;
string[] DateItems = new string[8];
char[] Separators = new char[7] { '-', '-', 'T', ':', ':', '+', ':' };
SYSTEMTIME Now = new SYSTEMTIME();
GetSystemTime(ref Now);
Stream ResponseStream = WebRequest.Create("http://www.timeapi.org/utc/now").GetResponse().GetResponseStream();
ResponseStream.Read(Buffer, 0, 25);
ResponseStream.Close();
DateString = Encoding.UTF8.GetString(Buffer, 0, 25);
DateItems = DateString.Split(Separators);
Now.wYear = Convert.ToUInt16(DateItems[0]);
Now.wMonth = Convert.ToUInt16(DateItems[1]);
Now.wDay = Convert.ToUInt16(DateItems[2]);
Now.wHour = Convert.ToUInt16(DateItems[3]);
Now.wMinute = Convert.ToUInt16(DateItems[4]);
Now.wSecond = Convert.ToUInt16(DateItems[5]);
Now.wMilliseconds = 0;
SetSystemTime(ref Now);
}
}
}
Here's how it works: The call to the URL returns the date/time as a char buffer.
"2011-12-02T14:56:38+00:00" as an example.
After converting this to a string we convert it into an array of strings in DateItems[] as
2011
12
02
14
56
38
00
00
using Separators[] to split the fields apart.
These are then converted to ushort values in the time structure, before setting the time on the device with it.
Nice code stephj .
Cheers!!!
Thanks for that stephj, will give it a go.
i've tried this and i'm getting a :
The remote server returned an error: (407) Proxy Authentication Required.
any ideas?
I tried the above program on an emulated device connected to the net via its host PC's connection and it worked a treat.
To get through a proxy, you will need to add the following code.
Code:
Program.GetSystemTime((Now))
**************INSERT THIS ****************
Dim Proxy as new WebProxy("http://ProxyServer:80/",true)
proxy.Credentials = CredentialCache.DefaultCredentials
WebRequest.DefaultWebProxy = proxy
**************INSERT ENDS ****************
Dim ResponseStream As Stream = WebRequest.Create("http://www.timeapi.org/utc/now").GetResponse.GetResponseStream
Where the first parameter of the WebProxy constructor is the name of your proxy server, and the port it uses. Here at work, we can get away with just using our proxy server's internal network DNS name of "Internet:8080", to access the outside web through a Microsoft ISA Proxy/Firewall. Note in this case the proxy uses a different port number of 8080 as opposed to the default http port of 80. If yours is not 80 you will have to provide it. You may have to do some groundwork to track down the name of your proxy server, and the port it uses. I would start by looking at the proxy setup in Settings->Connections->'Set up my proxy server' for starters.
CredentialCache.DefaultCredentials, picks up your default login/credentials and passes them to the proxy server. If it works properly, you should go through it, seamlessly.
Good luck!
Hi steph,
i tweaked this slightly and set up a webreference in my program, i then pull the time down from that in the format of "2011-12-12T09:43:14", it then splits it.
The problem i am having is that sometimes it seems to add an hour to the time.
Any ideas?
What time zone is your device operating under?
Start->Settings->[System]->Clock & Alarms->[Time]
What's the zone, and is it Home or Visiting? - I'll see if I can duplicate it.
GMT London and is set as Home.
As a test I set the time on the device to: 01/06/1999 and time 01:00:00. When i run the program the first time i press my 'Update Time' button and it returns 12/12/11 and 12:53:04, so 1 hour ahead. If i press the button again I get the correct time.
I notice on your original post that the time returned had +00:00 on the end but you dont seem to use it when you break the string down, is this not required?
Thanks for the help, much appreciated
At least I can duplicate it, so that is a start. It only seems to throw the hour forward if the date has changed, which explains why the second call to it corrects the time.
If you just knock the time back a couple of hours, a single call of the program sets the correct time.
Interesting. I'll try and get to the bottom of it, might take a day or so, on and off.
Edit: Got it!
The 1st of June 1999 is in BST one hour in front of GMT/UTC. The first call changes the date and time using BST, leaving the time pushed forward one hour. The date is then set to today's date which is in GMT/UTC. The second call sets the time against the GMT Timezone which corrects the time.
Set the date time to 04:00 yesterday and it works fine.
I'll see if we can fix it a bit better. More later.........
Here's the cure: It's C#, I'll leave you to convert it to VB.
The secret is to set the time twice, but stall the thread for ten seconds inbetween. The device will sort itself out in the gap, as various time and date housekeeping tasks are triggered. The second SetTime(), will carry out the final fix of the time before the program finally ends.
This should also work in BST when changing from a GMT/UTC date, and should also work with all global time zones.
Add this:
Code:
using System.Threading;
SetSystemTime(ref Now);
Thread.Sleep(10000);
SetSystemTime(ref Now);
that's great steph, thanks again.
There is a minor problem with the previous code:- If the minute happens to roll over in the 10 seconds while the process is asleep, then the change of minute will be lost.
Here's a better solution. Create a DateTime object in which to store the returned date and time from the WebRequest().
Use it to set the system date/time, and then advance it forward ten seconds.
Set the date/time with it again, after the ten second sleep() has elapsed.
Seems to work O.K. Post bug reports to this thread, if you find it doesn't.
Code:
using System;
using System.Net;
using System.Text;
using System.Threading;
using System.IO;
using System.Runtime.InteropServices;
namespace GetTime
{
class Program
{
[DllImport("coredll.dll")]
private extern static uint SetSystemTime(ref SYSTEMTIME lpSystemTime);
private struct SYSTEMTIME
{
public ushort wYear;
public ushort wMonth;
public ushort wDayOfWeek;
public ushort wDay;
public ushort wHour;
public ushort wMinute;
public ushort wSecond;
public ushort wMilliseconds;
}
static void Main(string[] args)
{
byte[] Buffer = new byte[25];
string DateString;
string[] DateItems = new string[8];
char[] Separators = new char[7] { '-', '-', 'T', ':', ':', '+', ':' };
SYSTEMTIME Now = new SYSTEMTIME();
Stream ResponseStream = WebRequest.Create("http://www.timeapi.org/utc/now").GetResponse().GetResponseStream();
ResponseStream.Read(Buffer, 0, 25);
ResponseStream.Close();
DateString = Encoding.UTF8.GetString(Buffer, 0, 25);
DateItems = DateString.Split(Separators);
DateTime SaveTime = new DateTime(Convert.ToInt32(DateItems[0]),Convert.ToInt32(DateItems[1]),Convert.ToInt32(DateItems[2]),Convert.ToInt32(DateItems[3]),Convert.ToInt32(DateItems[4]),Convert.ToInt32(DateItems[5]));
Now.wYear = Convert.ToUInt16(SaveTime.Year);
Now.wMonth = Convert.ToUInt16(SaveTime.Month);
Now.wDay = Convert.ToUInt16(SaveTime.Day);
Now.wHour = Convert.ToUInt16(SaveTime.Hour);
Now.wMinute = Convert.ToUInt16(SaveTime.Minute);
Now.wSecond = Convert.ToUInt16(SaveTime.Second);
Now.wMilliseconds = 0;
SetSystemTime(ref Now);
SaveTime.AddSeconds(10);
Thread.Sleep(10000);
Now.wYear = Convert.ToUInt16(SaveTime.Year);
Now.wMonth = Convert.ToUInt16(SaveTime.Month);
Now.wDay = Convert.ToUInt16(SaveTime.Day);
Now.wHour = Convert.ToUInt16(SaveTime.Hour);
Now.wMinute = Convert.ToUInt16(SaveTime.Minute);
Now.wSecond = Convert.ToUInt16(SaveTime.Second);
SetSystemTime(ref Now);
}
}
}
C# .NET CF 2.0 WinMo 5.0 onwards executable is included in the zip file.
It is a console application, so don't expect anything much to happen until the 'hourglass' disappears.
If the first SetSystemTime() ends up changing the date across a Daylight Saving Boundary date, then, during the sleep() period, the device's housekeeping date/time/alarm services will probably retrigger any outstanding task and event reminders for 'today'.
P.S. GetSystemTime() can be dropped it is not required.
works like a charm steph, nice one. thanks.
@stephj, Thanks for the updated code .
Cheers!!!
Seem to be having a problem with this since UK has put the clocks forward an hour, every time I update using this code my device is adding an hour to the time.
The device is an M3 Mobile.
What are the settings on the Start-> Settings->Clock and Alarms->Time[Tab]
It should still have the Home radio button active and the time zone set to GMT London, Dublin. The mobile device should take care of daylight saving itself.
Is your M3 running WinMo 6.1 or 6.5? But I can't see it making much difference.
Works OK on a stock 6.1 Kaiser (Vodafone v1615)
Update: Also seems to work OK on the WM 6.5.3 Professional emulator.
wubbledoos said:
Hi,
Does anybody know how to pull the time from a server and use that time to update the devices clock?
I want to lock the Clock down on the device so the best way to ensure the time is correct is to sync it with a server.
I'm using VB.net.
Click to expand...
Click to collapse
Well on my Kaisers (running either wm 6.1 or 6.5) I use SKTsync to sync my device clock to one of the NIST or SNTP servers. It's freeware and it does it all for you, all you do is run the app. It's soooo simple. I also run an app called CT Scheduler lite. I use it to automatically run SKTsync every night.

[Q] How to keep layouts inflated after activity restarts

Hi guys,
On a button click I am inflating a layout like so:
Code:
public void plusLayout(View v) {
// inflating layout here:
LinearLayout ll1 = (LinearLayout) findViewById(R.id.main_layout);
// this layout is being inflated:
View newView = getLayoutInflater().inflate(R.layout.layout_to_be_added, null);
// add layout
ll1.addView(newView);
}
But when the activity restarts, the inflated layouts are gone.
I'd like the layouts to stay there.
(The user can click a button to remove the layout by hand).
I must be missing something trivial here right?
Cheers,
Daan
Which way is it restarted?
If the complete app is restarted, a new layout will be set in the onCreate method.
nikwen said:
Which way is it restarted?
If the complete app is restarted, a new layout will be set in the onCreate method.
Click to expand...
Click to collapse
Yeah when you press back button and start the app again or completely kill it.
It also happens on orientation change as the activity get restarted then as well.
But I think you can override that in the manifest somewhere.
DaanJordaan said:
Yeah when you press back button and start the app again or completely kill it.
It also happens on orientation change as the activity get restarted then as well.
But I think you can override that in the manifest somewhere.
Click to expand...
Click to collapse
Ah ok.
The point is: If you open the app or turn your device, the onCreate method is called. There you set a completely new layout. You would need to save that the layout is inflated (you could use a SharedPreferences entry) and inflate it in the onCreate method. If you just want it to appear again after turning the device, use the onSaveInstanceState method and the onRestoreInstanceState method. That would be better practice.
Look at the activity lifecycle.
Just so I'm sure I get this right :
The user launches the app, the layouts are not inflated
He presses a button which calls your plusLayout() method, so the layouts are now inflated
The user quits the activity and restarts it, the layouts are not inflated anymore but you want them to.
Is that correct ?
If it is, 2 ways I can think of :
Overriding savedInstanceState() & onRestoreInstanceState() :
First, declare a private Boolean before the onCreate() of your activity :
Code:
private Boolean isInflated = false;
Then, set it to true in the onClick() of your button, and override savedInstanceState and onRestoreInstanceState like so :
Code:
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
// Save state changes to the savedInstanceState.
// This bundle will be passed to onCreate if th activity is
// killed and restarted.
savedInstanceState.putBoolean("inflate", isInflated);
}
Code:
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
// Restore UI state from the savedInstanceState.
// This bundle has also been passed to onCreate.
Boolean myBoolean = savedInstanceState.getBoolean("inflate");
if (myBoolean == true)
plusLayout(myView);
}
Using the sharedPreferences
Same logic, different way to save the boolean :
Before onCreate(), declare a private boolean and a private SharedPreferences :
Code:
private Boolean isInflated = false;
private SharedPreferences prefs = getSharedPreferences("MY_PREFS");
in the onClick of your button :
Code:
isInflated = true;
Editor e = prefs.edit();
e.putBoolean("inflate", isInflated);
e.commit();
Then, in your onCreate(), retrieve the stored value and if it's true, call your plusLayout() method :
Code:
Boolean doInflate = prefs.getBoolean("inflate", false // this is the default value);
if (doInflate == true)
plusLayout(myView);
nikwen said:
Ah ok.
The point is: If you open the app or turn your device, the onCreate method is called. There you set a completely new layout. You would need to save that the layout is inflated (you could use a SharedPreferences entry) and inflate it in the onCreate method. If you just want it to appear again after turning the device, use the onSaveInstanceState method and the onRestoreInstanceState method. That would be better practice.
Look at the activity lifecycle.
Click to expand...
Click to collapse
Okay I'm working on that at the moment.
Whenever a layout is created an (int) "counter" get incremented.
I will save this "counter" in the SharedPreferences.
When the app starts layouts get created "counter" times.
Is this good practice?
It seems so strange that there isn't an easier way to save layout/activity states.
Edit:
Androguide.fr said:
Just so I'm sure I get this right :
The user launches the app, the layouts are not inflated
He presses a button which calls your plusLayout() method, so the layouts are now inflated
The user quits the activity and restarts it, the layouts are not inflated anymore but you want them to.
Is that correct ?
Click to expand...
Click to collapse
That is correct. Big thanks for the examples.
DaanJordaan said:
Okay I'm working on that at the moment.
Whenever a layout is created an (int) "counter" get incremented.
I will save this "counter" in the SharedPreferences.
When the app starts layouts get created "counter" times.
Is this good practice?
It seems so strange that there isn't an easier way to save layout/activity states.
Edit:
That is correct. Big thanks for the examples.
Click to expand...
Click to collapse
I would use his snippets. They are good (as always). Decide which one to use by what I have given above:
Just for turning:
onSaveInstanceState and onRestoreSavedInstanceState
For turning and reopening:
Shared preferences

[Q] MediaController defined in XML

So I have the following code which works OK:
Code:
VideoView videoView = (VideoView)findViewById(R.id.videoView1);
videoView.setVideoPath("android.resource://" + getPackageName() + "/raw/"+R.raw.intro);
MediaController controller = new MediaController(this);
controller.setAnchorView(videoView);
controller.setPadding(0, 0, 0, 500);
videoView.setMediaController(controller);
videoView.setZOrderOnTop(true);
However, if I test the app on a phone with a smaller screen, the MediaController is positioned like s**t. So I tried to define it in the xml file so it keeps the same postion on different devices
Code:
<MediaController
android:id="@+id/mediaController1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/videoView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="30dp" >
</MediaController>
and changed the code to
Code:
VideoView videoView = (VideoView)findViewById(R.id.videoView1);
videoView.setVideoPath("android.resource://" + getPackageName() + "/raw/"+R.raw.intro);
MediaController controller = (MediaController)findViewById(R.id.mediaController1);
videoView.setMediaController(controller);
// controller.setAnchorView(videoView);
videoView.setZOrderOnTop(true);
But now, the app crashes when I start it. Is there something I'm missing here? How can I use the MediaController defined in the XML?
Check this: http://stackoverflow.com/questions/...oid-mediacontroller-to-appear-from-layout-xml
And please post a logcat. Otherwise nobody will be able to help you.
Here's the logcat. I'm just trying to have the mediaController in the position set in the xml, so that it stays relative to any screen sizes
I also tried this, from an answer in that link, but the mediaController just goes to the default position at the bottom of the screen
Code:
VideoView videoView = (VideoView)findViewById(R.id.videoView1);
videoView.setVideoPath("android.resource://" + getPackageName() + "/raw/"+R.raw.intro);
MediaController controller = new MediaController(this);
View controllerView = (View)findViewById(R.id.mediaController1);
controller.setAnchorView(controllerView);
videoView.setMediaController(controller);
videoView.setZOrderOnTop(true);

[Q] How can I add onclicklistener for each cell of a table?

I have a TableLayout with a table. How can I set onClicklisteners for each cell of this table?
I have not found any proper solution for this problem.
kovacsakos91 said:
I have a TableLayout with a table. How can I set onClicklisteners for each cell of this table?
I have not found any proper solution for this problem.
Click to expand...
Click to collapse
You'd usually set each view in each TableRow to be clickable (via android:clickable="true" in xml oder via view.setClickable(true); in java).
In xml, you then override the androidnClick attribute with your methods name, but if yuo want to have real onClickListeners you should call view.setOnClickListener(mListener);
To seperate the clicks in the onClick method, you should get the id's like this:
Code:
public void onClick(View v){
// switch case the id's:
switch(v.getId(){
case R.id.someId:
// do something in response;
break;
}
// for getting the id of the parent TableRow, use
int rowId = ((TableRow) v.getParent()).getId();
}
Depending on what you want to display in the table, you could also use Buttons for that.

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