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Combobox with Smartphones vs. WinMo

With the help of the peeps here, i got my little program working on the WinMo (touch screen) platform. Now im working on converting it into the Smartphone (non-touchscreen) platform. Seems with each medium im go, its more and more restrictive :|
anyway. I have a combobox on the screen. I has a few numbered values used to generate a random number. On the windows and winmo verson, i can just select the number from the drop down combobox, and it will generate a random number based on the selected item..
However in the Smartphone version, despite having the combobox and dispite selecting a number from it, when i hit the generate button (ie the enter button) it brings up a window with all the values in the combo box, asking me to select one from it. One when i pick one and hit "Done" does it process.
How can i get it to pull from the combobox list and Not bring up the extra screen?
Also, When the program first starts, despite me defining a default index, there is no number displayed in the combobox when it first starts up. And ideas on how to fix this?
Thanks in advance.

Good fun isn't it?
When you move from PPC to Smartphone some of the .NET objects dissappear and others behave completely differently.
OK lets do these one at a time. The Enter/Action key causes the ComboBox to display its list of contents, as a new window. It is coded into the object itself. To bypass it, you have to trick it into thinking it has already been dealt with. On the KeyDown event of the ComboBox add
Code:
private void comboBox1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == System.Windows.Forms.Keys.Enter)
{
e.Handled = true;
}
}
Voila!
The enter key is ignored and nothing happens. Add any processing code here to deal with the selected item if required, as the control itself will never see that the 'Enter' key has been pressed.
To get the box to display its value when your application starts, use :
Code:
private void Form1_Load(object sender, EventArgs e)
{
comboBox1.SelectedIndex = 0;
}
It doesn't actually change anything as it zero to start with, but it will trigger the ComboBox to redraw itself as it thinks it has changed.
Good luck.

The "comboBox1.SelectedIndex = 0;" ive tried already, didn't seem to help. Ill try the other when i get a moment..
I should also mention ( thought i did before, sorry) that im working with VB (for school) tho converting that code to vb shouldn't be too hard

OK I'll code it up in VB and post it. But it will have to wait until I can get to a suitable machine on which to do it. Monday onwards....... Watch this space.

Here it is. VS 2005. (2008 will update it). Both problems mentioned in the original post are corrected. All the extra lines of code added by VS for the KeyDown event have been removed.

Writing app, having trouble

Hey guys, I know this thread is probably better suited for the development thread, but I am not allowed to post there, so here goes:
I am working on improving the notepad app that is created through the notepad tutorial provided for android development, and at the moment I am trying to make a preferences page that allows me to enter a number, hit confirm, and the app will use that number to change the font. My approach so far has been to pass a startActivityForResult call, which returns a number, then in my onActivityResult I check for that number which should be returned. I then capture the result code, which should not be an integer, it has been parsed in the methods that were called. All that seems to be running fine, but when I try to use TextView to setTextSize my application is force closing, I have tried a few different ways of implementing this setTextSize method, including not using the variable that I am getting back (resultCode) at all, and instead just plugging in a preset number, but the application is still bombing as soon as I try to call setTextSize in any way. I wanted to see if there is anything special about the setTextSize that I may be missing, or if there is a better way of setting font size at run-time.
Thanks,
Nate

Does this help at all?

I did find that post through my searching, and even calling the setTextSize using pixels it still bombs out, here is my code for making the text larger:
fontSize = resultCode;
TextView tv;
tv = (TextView)findViewById(R.id.text1);
tv.setTextSize(TypedValue.COMPLEX_UNIT_PX, fontSize);
I do not know if this matters or not, but the view that is being used is notes_row which is referenced by id text1, more importantly, notes_row is used to display the rows on the notes_list view.
Thanks for the help, I am new to android programming, and this is something I have had trouble with for the past 2 days.

OK well what does the stack trace look like? what errors are you getting? and i know you said you plugged in an actual number in place of the variable (just for testing), but how did you plug that number in? did you just use the number or did you use the Float or Integer object or what?

Unfortunately, I do not know what a stack trace is, if you could elaborate I would be very grateful.
When I plugged the number in directly I did it both by creating a variable of type float and assigning it a value, and using that variable in the method call, as well as just putting a number directly into the method call.

Bump. Can't figure out why a simple textview.settextsize would cause a force quit.

Sitrep: I figured out the problem with my code, but in the process caused another problem. Here is the deal, I was instantiating TextView with a view object, rather than a context, after switching the line that said TextView tv = new TextView( (TextView) findViewById(R.id.text1))) to TextView tv = new TextView(this). The problem with that is, I am trying to edit data that is in a pre-existing textview, declared in one of my xmls, and therefore creating a new one does not seem like the right way to be going, or maybe I just do not understand the way to do it.
Does anyone know a way for me to access my pre-existing TextView (created in my xml file) at run-time, or even a way to apply settings that I change on my new TextView to my pre-existing one. Is this possible or do I need to be looking for a different solution (someone suggested that I create a separate view for each text size that I want to create, and then once a user selects the text they want using a menu, just call the appropriate view) I would prefer to use a more elegant solution if possible.
Thanks for all the help so far,
Nate

Doing more reading, I see that I do in fact need to make my TextView = the one that is currently defined with the program, the problem with this is that when I put breakpoints right after where I declare this statement: TextView tv = (TextView) findViewById(R.id.text1); Under variables tv shows as a null, and I believe that is the reason that I getting the crash, I think the program is seeing null.setText...... instead of view.set....

To the top

Any working 4G toggles yet?

I gotta say I'm a bit surprised by the lack of ambition to get a working 4G toggle. Every phone I've had, there has always been a demand to get a working 4G toggle. Has anyone heard of anything about this? Luckily this phone gets good battery life so its not that big of a deal but it'd be nice to have for those times when your trying to really save battery.
I know of the app Phone Info, but its gotten a lot of negative views around here about losing data with it so I've avoided it since.

rehpyc has been working on one. I've sent him some info that I discovered trying to find the right system call to switch between 3g and 4g.
Rather than simply be disappointed, would you like to help?
Sent from my SCH-I535 using xda premium
I'm trying to find where the settings (which can be accessed in the phone info -> Device Information area) are stored.
-Using dex2jar and jdgui, I decompiled the phone info app into java source (.java) files. It's a really small app that just calls the "TestingSettings" functionality of the SecSettings.apk
-We can access the "TestingSettings" by simply running "am start com.android.settings/.TestingSettings" in terminal. It essentially does the exact same thing as launching the Phone Info app.
-Using dex2jar and jdgui, I decompiled the SecSettings.apk into java source (.java) files. Digging through the files, I found that the RadioInfo class. This class contains a String array mPreferredNetworkLabels which lists all the settings in the spinner we choose the network type (CDMA Auto (PRL), LTE/CDMA/EvDo, etc). This class seems to provide functionality for listening to GUI changes on the "PreferredNetworkType" spinner. Not exactly sure what it does from there, but hopefully it can be traced down to some methods that either store the settings into a file or to a SQLite database.
In dex2jar -> JD gui for SecSettings.apk, Radioinfo class has
public RadioInfo()
{
String[] arrayOfString = new String[14];
arrayOfString[0] = "WCDMA preferred";
arrayOfString[1] = "GSM only";
arrayOfString[2] = "WCDMA only";
arrayOfString[3] = "GSM auto (PRL)";
arrayOfString[4] = "CDMA auto (PRL)";
arrayOfString[5] = "CDMA only";
arrayOfString[6] = "EvDo only";
arrayOfString[7] = "GSM/CDMA auto (PRL)";
arrayOfString[8] = "LTE/CDMA/EvDo";
arrayOfString[9] = "LTE/GSM/WCDMA";
arrayOfString[10] = "Global";
arrayOfString[11] = "LTE only";
arrayOfString[12] = "LTE/WCDMA";
arrayOfString[13] = "Unknown";
this.mPreferredNetworkLabels = arrayOfString;
}
RadioInfo.java sets the network type in the following code (lines 297-309):
AdapterView.OnItemSelectedListener mPreferredNetworkHandler = new AdapterView.OnItemSelectedListener()
{
public void onItemSelected(AdapterView paramAnonymousAdapterView, View paramAnonymousView, int paramAnonymousInt, long paramAnonymousLong)
{
Message localMessage = RadioInfo.this.mHandler.obtainMessage(1001);
if ((paramAnonymousInt >= 0) && (paramAnonymousInt <= -2 + RadioInfo.this.mPreferredNetworkLabels.length))
RadioInfo.this.phone.setPreferredNetworkType(paramAnonymousInt, localMessage);
}
public void onNothingSelected(AdapterView paramAnonymousAdapterView)
{
}
};
The key line is line 303:
RadioInfo.this.phone.setPreferredNetworkType(paramAnonymousInt, localMessage);
Some info about the setPreferredNetworkType() method:
void setPreferredNetworkType(int networkType, Message response);
Requests to set the preferred network type for searching and registering (CS/PS domain, RAT, and operation mode)
Parameters:
networkType one of NT_*_TYPE
response is callback message
The phone data member is a private data member set to null on line 422:
private Phone phone = null;
The phone data member is set to the Default Phone on RadioInfo object creation (onCreate) in line 916:
this.phone = PhoneFactory.getDefaultPhone();
Based on the above information, I believe we would need to create a toggle which would execute a small java program to access the setPreferredNetworkType() method from a Phone object instantiated from the PhoneFactory.getDefaultPhone() method. I believe Phone resides in com.android.internal.telephony, but in order to gain access to the internal android stuff we would need to do something like the following article provides:
https://devmaze.wordpress.com/2011/01/18/using-com-android-internal-part-1-introduction/
That's all the time I have for the moment...

great info! Unfortunately I have no idea how that stuff works. I praise the devs who do this work and members like you who work on it. I wish I could.
Sorry if I came off as demanding of wanting a toggle, I'm just surprised I haven't heard more about it. But good to know it's being worked on. I'd definitely be willing to help test when something is cooked up though

tu3218 said:
great info! Unfortunately I have no idea how that stuff works. I praise the devs who do this work and members like you who work on it. I wish I could.
Sorry if I came off as demanding of wanting a toggle, I'm just surprised I haven't heard more about it. But good to know it's being worked on. I'd definitely be willing to help test when something is cooked up though
Click to expand...
Click to collapse
Unfortunately I'm short on time these days, but I wanted to get the info out there so someone might be able to use it. I really do think we're close, but I'm more of a hacker/modder than an Android dev. Someone comfortable with development on Android might be able to speed this up significantly.
Sent from my SCH-I535 using xda premium

Link contact adress to Nokia Drive

I use my7rom on my Omnia 7.
Is there anyway to link a contacts adress to Nokia Drive instead of Maps (stock wp7 app). It would be much more practical if Nokia Drive opened a navigation session instead.
Anyone up for the challenge? A reg-tweak perhaps?
// Manneman
Skickat från Windows Phone 7.8

There's two parts here. The first is identifying the correct "filetype" or URI scheme that is used for navigation. That shouldn't be too hard; a little digging in HKCU should reveal it. We already know about ones like callto: and http: and I'm actually (slowly) working on an app to allow people to easily change them. The second part is finding the correct command to load that address or route in the Nokia Maps app. If the app supports pinning routes or destinations to Start, this is probably possible. If not, it may not be possible in the app. Most apps aren't designed to accept command-line parameters, so even if you make them the default handler for a given filetype or URI scheme, they ignore the value you send them and just start as though launched from Start.

GoodDayToDie said:
If the app supports pinning routes or destinations to Start, this is probably possible.
Click to expand...
Click to collapse
Nokia Drive supports pinning to start so it should be possible. Unfortunately I can't tell you exact command line parameters 'cause my Lumia 900 still "in jail"

Let me see if I have a copy of the Nokia Drive XAP handy. I'll need to decompile it to figure out the correct parameters for launching it with the intent of navigating to a specific location. Note also that this might not be possible directly - for example, the app might store a list of locations internally, and the tiles only provide an index into that list rather than providing the location directly - but that just requires another layer of indirection.
In that case, you create an app that gets registered as the navigation handler, and in response to a navigation request, it writes the requested location into the Nokia Drive app and then chain-launches Nokia Drive with the index of the newly written location. That's just an example of one way that this might go wrong, but overall, the odds are actually pretty good. Obviously, all of this will require, at a minimum, write access to the HKCR hive in the registry.

Ah, guys! You are so kind helping me out. I´m really certain alot of members in the WP7 section would love for this to work!
// Manneman

GoodDayToDie said:
I'll need to decompile it to figure out the correct parameters for launching it with the intent of navigating to a specific location
Click to expand...
Click to collapse
GoodDayToDie, you may try much simpler solution. Just create assembly (dll) to show startup parameters in message box, and replace main Nokia Drive dll (but pin some location first).

That's actually harder than it sounds; even if the app is sideloaded (which would mean I already have the DLL) my fake would have to mimic the internal structure of the real app to a degree (namespaces, class names, default actions, etc.). That's not hard, but decompiling .NET is pretty trivial too.

AFAIR, Nokia Drive is obfuscated (but I'm not 100% sure). Also, you don't need to duplicate all names and structures; just a stuff mentioned in WMAppManifest (I hope so). BTW, I forgot: I still have unlocked handset; if I'll found time, will try today later.
Update: tried but without of luck What I did:
- installed Nokia Drive first;
- downloaded map and pinned current location;
- created fake app with same app guid and namespace name ("Drive"), and performed app update (that operation completely override whole solution but NokiaDrive tile still pinned to the start screen);
- tried a few different page names (_default.xaml, QuickStartPage.xaml, DestinationPickerPage.xaml, FavoritesPage.xaml) with code
Code:
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
MessageBox.Show("Hello from fake dll");
if (e.NavigationMode == System.Windows.Navigation.NavigationMode.New)
{
string[] keys = NavigationContext.QueryString.Keys.ToArray();
string[] values = NavigationContext.QueryString.Values.ToArray();
string param = "";
for (int i = 0; i < keys.Length; i++)
{
param += keys[i] + " -> " + values[i] + "\n";
}
MessageBox.Show("parameters: " + param);
}
}
But result always the same: app doesn't start from the pinned tile

Update 2: Finally, I did it
The trick is:
- do the same as I've described above (you should have pinned tile from ND);
- add following code to the start page:
Code:
public MainPage()
{
InitializeComponent();
var appTile = ShellTile.ActiveTiles.Last();
if (appTile != null)
{
//MessageBox.Show(appTile.NavigationUri.OriginalString);
EmailComposeTask emailTask = new EmailComposeTask();
emailTask.Subject = "NokiaDrive pinned parameters";
emailTask.Body = appTile.NavigationUri.OriginalString;
try
{
emailTask.Show();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK);
}
}
}
- run app as usual (not from tile);
We allset - all params are sent to our email (I'm too lazy to manually copy all stuff )
Here we are (start parameters; bold values are changed for privacy reason ):
/_default?destination.name=200 SomeName Street&destination.latitude=49.5255378801376&destination.longitude=-72.4296837244183&destination.address.street=SomeName Street&destination.address.houseno=200&destination.address.district=&destination.address.county=&destination.address.city=SomeCity&destination.address.state=&destination.address.country=USA&destination.address.postcode=05720&destination.hashCode=371767793destination.address.statecode=MA&pinnedFrom=Favorites
P.S. Just found: Navigon also has ability to pin address to the start tile So, if you find the way to modify map protocol (or how it calls), it will be a really nice hack! BTW, could you remind me: do we have ability to launch assembly by GUID (on the full-/policy-unlocked phones)? If "yes", it's possible to write a real nice "proxy" app to handle map requests

I don't know about launching assemblies directly, but it's certainly possible to launch apps by GUID. It doesn't even require anything more than dev-unlock in fact (although of course you can only launch apps that you could launch anyhow). So yes, a proxy app is totally possible. That's actually what I'm working on (started as a project to make a Kindle ebook file loader, that would pur .mobi/.prc file in the Kindle app's folder and then launch the app).

GoodDayToDie, could you please, take a look to the registry, for default map protocol handler and figure out how to change that stuff? I'm pretty busy these days (and probably will be extremely busy couple of next months) but we can cooperate and create this app...

I'll investigate, but you're not the only one busy. If you've noticed a lack of software from me recently, it's due to the nex job I got some months back; I love it, but it leaves me with a lot less time for phone hacking if I want to still have a life outside of that.
With that said, this actually ties into the work I'm already doing with things like filetype handling and default browser switching. I can send you my HKCRlib, at a minimum; it's a library that simplifies interacting with HKCR, including creating backups of important values when they change, and reverting the backups.

GoodDayToDie, truly, I'm not much interested (personally) in that hack 'cause I can't use it for my Lumia 900. So it's only for the community needs but because of lack of time, I believe, we may put it on hold.

Reading a URL

I am trying to make a self steering gear for a boat. The actuator side that moves the tiller uses an ESP8266 and rather than add a compass there along with push buttons and LCD I thought I would try to use an Android phone and send the data to the ESP over wifi.
My starting point is compass_dev from github. This gives me a variable called "azimuth" that is taken directly from the phone/tablet. I do not at this stage need to be concerned with any of the inner working about how azimuth is arrived at and can, for now, just take it as a correct value that I have to work on.
All good so far and working well. The ESP has a PID controller to know how to move the rudder and it accepts from a web page on the ESP, a number that is the angle between a locked heading and the bearing the boat is going on so any number between 180 and -180.
This number is transferred from the main compass application through a singleton into my http handling bit (dohttp). In dohttp I am connecting to my ESP with this:
protected Long doInBackground(URL... urls) {
try {
components = SingletonSession.Instance().getBearing();
URL url = new URL("http://192.168.0.57/msg?msg="+components);
// Log.e("bears", "H11 " + components);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setUseCaches(false);
connection.setDoOutput(true);
connection.setRequestMethod("PUT");
connection.setChunkedStreamingMode(0);
OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream());
out.flush();
out.close();
connection.disconnect();
}
You can see that the URL is:
http://192.168.0.57/msg?msg="+components
components is normally just the error angle (azimuth - bearing)
If I enter, for example "12" then once this URL is accepted by the ESP the URL will change to:
http://192.168.0.57/msg?msg=12&EX=Execute
So you can see that if the ESP has received correctly I can parse the URL looking for:
12&EX=Execute
If I do not get this then the ESP has missed the value.
The problem I have is that I cannot work out how to read the URL. I do realise that I can add the values to the actual page and parse the data out with a read but it seems a long winded way when just reading the URL would give me what I need if reading the URL is possible.
I am a complete beginner and this is the first java programming I have ever attempted, first use of Android Studio and have really struggled to get this far so please make the answers as simple as possible.Any input is greatly appreciated.
Please excuse me if this is not in the right place, I seem not to have permission to put it where I think it should go and this is the closest I could find that was even slightly relevant.