I'm following along on the Tutorial for fragments here but unfortunately this tutorial doesn't show how to get icons into the menu bar.
I assumed I could just use a MenuInflater in the OnCreateOptionsMenu method but my code never appears to be hit when I put a debug there.
Here's what it looks like presently:
public class MainView : MvxTabsFragmentActivity
{
public MainViewModel MainViewModel
{
get { return (MainViewModel)base.ViewModel; }
}
public MainView()
: base(Resource.Layout.Main, Resource.Id.realtabcontent)
{
}
public override bool OnCreateOptionsMenu(IMenu menu) {
MenuInflater.Inflate (Resource.Menu.main, menu);
return true;
}
protected override void OnCreate (Bundle savedInstanceState)
{
RequestWindowFeature(WindowFeatures.NoTitle);
base.OnCreate (savedInstanceState);
}
protected override void AddTabs(Bundle args)
{
AddTab<HomeView>("home", "", args, MainViewModel.Home);
AddTab<ProfileView>("profile", "", args, MainViewModel.StartOrder);
AddTab<CatalogView>("catalog", "", args, MainViewModel.Catalog);
AddTab<CheckoutView>("checkout", "", args, MainViewModel.Checkout);
AddTab<OrderHistoryView>("history", "", args, MainViewModel.OrderHistory);
}
}
Am I missing something here? Is there a different way to set the icons on the tab? Everything shows up and navigates properly, I just have blank tabs...
Thanks!
I'm not sure what OnCreateOptionsMenu has to do with setting the icons on the tabs - afaik that's just for 'right-click' or 'press-and-hold' menus?
If you want to use a TabSpec which also has an icon, perhaps consider using the other AddTab override which allows you to pass in a complete TabSpec
// this is the call you are currently using
protected void AddTab<TFragment>(string tagAndSpecName, string tabName, Bundle args,
IMvxViewModel viewModel)
{
var tabSpec = this._tabHost.NewTabSpec(tagAndSpecName).SetIndicator(tabName);
AddTab<TFragment>(args, viewModel, tabSpec);
}
// this is the call you could use instead
protected void AddTab<TFragment>(Bundle args, IMvxViewModel viewModel, TabHost.TabSpec tabSpec)
{
var tabInfo = new TabInfo(tabSpec.Tag, typeof (TFragment), args, viewModel);
AddTab(this, _tabHost, tabSpec, tabInfo);
_lookup.Add(tabInfo.Tag, tabInfo);
}
e.g.
var tabHost = (TabHost) FindViewById(Android.Resource.Id.TabHost);
var tabSpec = this.tabHost.NewTabSpec("home").SetIndicator("Home", Resource.Id.MyHomeIcon);
AddTab<HomeView>(args, MainViewModel.Home, tabSpec);
although obviously those last two lines could be reduced to one with a helper method.
Related
This is a know error when using C# expressions in windows workflow. The article at https://learn.microsoft.com/en-us/dotnet/framework/windows-workflow-foundation/csharp-expressions#CodeWorkflows explains the reason and how to fix it. It all works fine for me in standard workflows, but as soon as I add a custom NativeActivity to the WF, I get that same error again !
Below the code of how I load the XAML workflow and the simple NativeActivity (which is the ONLY activity in the test workflow and inside that activity is a simple assign expression).
Loading and invoking WF via XAML:
`XamlXmlReaderSettings settings = new XamlXmlReaderSettings()
{
LocalAssembly = GetContextAssembly()
};
XamlReader reader = reader = ActivityXamlServices.CreateReader(new XamlXmlReader(fileURL, settings));
ActivityXamlServicesSettings serviceSettings = new ActivityXamlServicesSettings
{
CompileExpressions = true
};
var activity = ActivityXamlServices.Load(reader, serviceSettings);
WorkflowInvoker.Invoke(activity);`
Doing it in code throws same Exception:
Variable<string> foo = new Variable<string>
{
Name = "Foo"
};
Activity activity = new Sequence
{
Variables = { foo },
Activities =
{
new TimeExecuteUntilAborted
{
Activities =
{
new Assign<string>
{
To = new CSharpReference<string>("Foo"),
Value = new CSharpValue<string>("new Random().Next(1, 101).ToString()")
}
}
}
}
};
CompileExpressions(activity);//the method from the article mentioned above
WorkflowInvoker.Invoke(activity);
The Native Activity:
[Designer("System.Activities.Core.Presentation.SequenceDesigner, System.Activities.Core.Presentation")]
public sealed class TimeExecuteUntilAborted : NativeActivity
{
private Sequence innerSequence = new Sequence();
[Browsable(false)]
public Collection<Activity> Activities
{
get
{
return innerSequence.Activities;
}
}
[Browsable(false)]
public Collection<Variable> Variables
{
get
{
return innerSequence.Variables;
}
}
protected override void CacheMetadata(NativeActivityMetadata metadata)
{
metadata.AddImplementationChild(innerSequence);
}
protected override void Execute(NativeActivityContext context)
{
context.ScheduleActivity(innerSequence);
}
}
Your TimeExecutedUntilAborted class seems to be the culprit. I was able to swap in one of my own template NativeActivities instead and your workflow executed fine with the expressions. I'm guessing that your class is causing an issue in the compiler method when it parses your code. I used this doc as an example for my NativeActivity: https://msdn.microsoft.com/en-us/library/system.activities.nativeactivity(v=vs.110).aspx.
Sizzle Finger's answer is no solution but pointed me into the right direction to simply check what is different. It came out that the simple call to the base class method was missing:
protected override void CacheMetadata(NativeActivityMetadata metadata)
{
base.CacheMetadata(metadata); // !! This needs to be added
metadata.AddImplementationChild(innerSequence);
}
I have a business object in my XAF application which inherits from the standard Scheduler'Event' class. In the list view I get the default scheduler list view where the boxes display the descriptive text. I want to display additional text in those boxes. I looked around and found "ScheduleControl.InitAppointmentDisplayText" event but could not figure out how to implement it within my class.
You can implement the following code within a view controller within the Module.Win project.
namespace Project.Module.Win.Controllers{
using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Scheduler.Win;
using DevExpress.XtraScheduler;
public partial class SchedulerViewController : ObjectViewController<ListView, Project.Module.BusinessObjects.Event>
{
public SchedulerViewController()
{
this.InitializeComponent();
this.RegisterActions(this.components);
}
protected override void OnViewControlsCreated()
{
base.OnViewControlsCreated();
SchedulerListEditor listEditor = View.Editor as SchedulerListEditor;
if (listEditor != null)
{
SchedulerControl scheduler = listEditor.SchedulerControl;
if (scheduler != null)
{
scheduler.InitAppointmentDisplayText += new AppointmentDisplayTextEventHandler(this.SchedulerControl_InitAppointmentDisplayText);
}
}
}
private void SchedulerControl_InitAppointmentDisplayText(object sender, AppointmentDisplayTextEventArgs e)
{
MyEventObject myEventObject = this.ObjectSpace.GetObjectByKey<MyEventObject>(e.Appointment.Id);
if (myEventObject != null)
{
e.Text = string.Concat("Text Goes Here - ", myEventObject.FieldValue);
}
}
}
I want get text string shown in a textview in LinearLayout. can espresso do that? If not, is there other way to do that or can I use android api in espresso test case? I am using API 17 18 or newer, espresso 1.1(It should be the latest one.). I have no clue about this. Thanks.
The basic idea is to use a method with an internal ViewAction that retrieves the text in its perform method. Anonymous classes can only access final fields, so we cannot just let it set a local variable of getText(), but instead an array of String is used to get the string out of the ViewAction.
String getText(final Matcher<View> matcher) {
final String[] stringHolder = { null };
onView(matcher).perform(new ViewAction() {
#Override
public Matcher<View> getConstraints() {
return isAssignableFrom(TextView.class);
}
#Override
public String getDescription() {
return "getting text from a TextView";
}
#Override
public void perform(UiController uiController, View view) {
TextView tv = (TextView)view; //Save, because of check in getConstraints()
stringHolder[0] = tv.getText().toString();
}
});
return stringHolder[0];
}
Note: This kind of view data retrievers should be used with care. If you are constantly finding yourself writing this kind of methods, there is a good chance, you're doing something wrong from the get go. Also don't ever access the View outside of a ViewAssertion or ViewAction, because only there it is made sure, that interaction is safe, as it is run from UI thread, and before execution it is checked, that no other interactions meddle.
If you want to check text value with another text, you can create Matcher. You can see my code to create your own method:
public static Matcher<View> checkConversion(final float value){
return new TypeSafeMatcher<View>() {
#Override
protected boolean matchesSafely(View item) {
if(!(item instanceof TextView)) return false;
float convertedValue = Float.valueOf(((TextView) item).getText().toString());
float delta = Math.abs(convertedValue - value);
return delta < 0.005f;
}
#Override
public void describeTo(Description description) {
description.appendText("Value expected is wrong");
}
};
}
I'm implementing a DynamicItemStart button inside a Menu Controller. I'm loading the dynamic items for this button when Visual Studio starts. Everything is loaded correctly so the initialize method is called an I see all the new items in this Dynamic button. After the package is completely loaded I want to add more items to this Dynamic button, but since the package is already loaded the initialize method is not called again and I cannot see the new items in this Dynamic button. I only see the ones that were loaded when VS started.
Is there any way that I can force the update of this Dynamic button so it shows the new items?. I want to be able to update the VS UI after I added more items but outside the Initialize method.
The implementation I did is very similar to the one showed on this msdn example:
http://msdn.microsoft.com/en-us/library/bb166492.aspx
Does anyone know if an Update of the UI can be done by demand?
Any hints are greatly appreciated.
I finally got this working. The main thing is the implementation of a derived class of OleMenuCommand that implements a new constructor with a Predicate. This predicate is used to check if a new command is a match within the DynamicItemStart button.
public class DynamicItemMenuCommand : OleMenuCommand
{
private Predicate<int> matches;
public DynamicItemMenuCommand(CommandID rootId, Predicate<int> matches, EventHandler invokeHandler, EventHandler beforeQueryStatusHandler)
: base(invokeHandler, null, beforeQueryStatusHandler, rootId)
{
if (matches == null)
{
throw new ArgumentNullException("Matches predicate cannot be null.");
}
this.matches = matches;
}
public override bool DynamicItemMatch(int cmdId)
{
if (this.matches(cmdId))
{
this.MatchedCommandId = cmdId;
return true;
}
this.MatchedCommandId = 0;
return false;
}
}
The above class should be used when adding the commands on execution time. Here's the code that creates the commands
public class ListMenu
{
private int _baselistID = (int)PkgCmdIDList.cmdidMRUList;
private List<IVsDataExplorerConnection> _connectionsList;
public ListMenu(ref OleMenuCommandService mcs)
{
InitMRUMenu(ref mcs);
}
internal void InitMRUMenu(ref OleMenuCommandService mcs)
{
if (mcs != null)
{
//_baselistID has the guid value of the DynamicStartItem
CommandID dynamicItemRootId = new CommandID(GuidList.guidIDEToolbarCmdSet, _baselistID);
DynamicItemMenuCommand dynamicMenuCommand = new DynamicItemMenuCommand(dynamicItemRootId, isValidDynamicItem, OnInvokedDynamicItem, OnBeforeQueryStatusDynamicItem);
mcs.AddCommand(dynamicMenuCommand);
}
}
private bool IsValidDynamicItem(int commandId)
{
return ((commandId - _baselistID) < connectionsCount); // here is the place to put the criteria to add a new command to the dynamic button
}
private void OnInvokedDynamicItem(object sender, EventArgs args)
{
DynamicItemMenuCommand invokedCommand = (DynamicItemMenuCommand)sender;
if (null != invokedCommand)
{
.....
}
}
private void OnBeforeQueryStatusDynamicItem(object sender, EventArgs args)
{
DynamicItemMenuCommand matchedCommand = (DynamicItemMenuCommand)sender;
bool isRootItem = (matchedCommand.MatchedCommandId == 0);
matchedCommand.Enabled = true;
matchedCommand.Visible = true;
int indexForDisplay = (isRootItem ? 0 : (matchedCommand.MatchedCommandId - _baselistID));
matchedCommand.Text = "Text for the command";
matchedCommand.MatchedCommandId = 0;
}
}
I had to review a lot of documentation since it was not very clear how the commands can be added on execution time. So I hope this save some time whoever has to implement anything similar.
The missing piece for me was figuring out how to control the addition of new items.
It took me some time to figure out that the matches predicate (the IsValidDynamicItem method in the sample) controls how many items get added - as long as it returns true, the OnBeforeQueryStatusDynamicItem gets invoked and can set the details (Enabled/Visible/Checked/Text etc.) of the match to be added to the menu.
I need to execute Show created file name each time Watch files fires an event
WatchFilesActivity : NativeActivity
protected override void Execute(NativeActivityContext context)
{
var fileSystemWatcher = new FileSystemWatcher(context.GetValue(Path));
fileSystemWatcher.IncludeSubdirectories = context.GetValue(IncludeSubdirectories);
fileSystemWatcher.Filter = context.GetValue(Filter);
var bookmark = context.CreateBookmark(ResumeFileCreatedBookmark);
context.GetExtension<FileSystemWatcherExtension>().Start(fileSystemWatcher, bookmark);
}
Extension
public class FileSystemWatcherExtension : IWorkflowInstanceExtension
{
WorkflowInstanceProxy instance;
Bookmark bookmark;
public void SetInstance(WorkflowInstanceProxy instance)
{
this.instance = instance;
}
IEnumerable<object> IWorkflowInstanceExtension.GetAdditionalExtensions()
{
yield break;
}
public void Start(FileSystemWatcher fileSystemWatcher, Bookmark bookmark)
{
this.bookmark = bookmark;
fileSystemWatcher.Created += new FileSystemEventHandler(FileCreated);
fileSystemWatcher.EnableRaisingEvents = true;
}
void FileCreated(object sender, FileSystemEventArgs e)//When the file arrives
{
instance.BeginResumeBookmark(bookmark, e.FullPath, CompleteResume, null);
}
void CompleteResume(IAsyncResult ar)
{
var result = instance.EndResumeBookmark(ar);
}
}
This is working great, but only once, and after this the host closes.
I can't put a WhileActivity because I need to handle consecutive very fast file creations and the processing time of an incoming file(Show created file name, in this case) is greater than the file creation rate
Thanks!
For a starter I would make the Show created file name activity a child activity of the Watch files activity so it can control it's execution. Next I would add a bookmark resumption callback so Watch files activity can react to and schedule the Show created file name activity in the callback.
Optionally you might want to create your bookmark with BookmarkOptions.MultipleResume so you can handle as many file events as you want and only move on when you want to do so.
public class WatchFilesActivity : NativeActivity
{
public Activity Child {get; set;}
protected override void Execute(NativeActivityContext context)
{
var fileSystemWatcher = new FileSystemWatcher(context.GetValue(Path));
fileSystemWatcher.IncludeSubdirectories = context.GetValue(IncludeSubdirectories);
fileSystemWatcher.Filter = context.GetValue(Filter);
var bookmark = context.CreateBookmark(ResumeFileCreatedBookmark, OnFileCreated, BookmarkOptions.MultipleResume);
context.GetExtension<FileSystemWatcherExtension>().Start(fileSystemWatcher, bookmark);
}
protected void OnFileCreated(NativeActivityContext context, Bookmark bookmark, object value)
{
var fileName = (string)value
context.ScheduleActivity(Child);
}
}
Note: Code typed in Notepad so possible typos.
If you need to pass the file name on to the child activity you can use an ActivityAction to do just that. See here for an example using an ActivityFunc which is just like an ActivityAction except it also has a return value.