Develop Reference

Timber - Problem with creating a custom Timber Debug Tree class

I'm trying to create a custom Debug Tree class to get the same result as the following:
I have followed this Stackoverflow answer:
Log method name and line number in Timber
But using that answer gives me two problems:
Implementing the custom Debug Tree class does not log anything when I use more than one method.
public class MyDebugTree extends Timber.DebugTree {
#Override
protected String createStackElementTag(StackTraceElement element) {
return String.format("(%s:%s)#%s",
element.getFileName(),
element.getLineNumber(),
element.getMethodName());
}
}
public class BaseApplication extends Application {
#Override
public void onCreate() {
super.onCreate();
if (BuildConfig.DEBUG) {
Timber.plant(new MyDebugTree);
}
}
}
The above causes it to not log at all.
If I use only return element.getFileName(); it successfully logs that one error.
The second problem I'm having is that using a custom DebugTree class does not give me the same results as using err.getStackTrace()[0].getLineNumber().
}, err -> {
Timber.e("Method name: " + err);
Timber.e("Method name: " + err.getStackTrace()[0].getMethodName());
}
The custom Debug Tree class does not display the name of the method I'm trying to log.
Why is it not logging when I use all three methods?
Also how can I get it to log like it would using
err.getStackTrace()[0].getMethodName()?
I'm using 'com.jakewharton.timber:timber:4.7.1'

You seem to be doing it right. I recreated your code in kotlin (programming language should not matter) and i was able to show my logs.
MyDebugTree.kt
class QueenlyDebugTree : Timber.DebugTree() {
override fun createStackElementTag(element: StackTraceElement): String {
return "(${element.fileName}:${element.lineNumber})#${element.methodName}"
}
}
force log using an actual exception:
try {
throw RuntimeException("Hello World")
} catch (e: Exception) {
Timber.e(e)
}
i got a log:
So, from what i saw from your code, its most probably because you have a compact logcat view. To update your logcat view, follow these steps:
1. Make sure you have standard view selected
2. Configure standard view
3. Make sure Show tags is selected and tag column is at max(35)

Using Android Plugin: Nonexistent function 'getPluginName' in base 'JNISingleton'

Godot version: 3.2.3
Issue description:
I am new at using Android Plugins in Godot, so I created this simple plugin with only one method.
public class GodotProva extends GodotPlugin
{
public GodotProva(Godot godot) {
super(godot);
}
#NonNull
#Override
public String getPluginName() {
return "mylibrary";
}
}
I tried to use it in Godot, with the following code:
func _pressed():
if Engine.has_singleton("mylibrary"):
var singleton = Engine.get_singleton("mylibrary")
print(singleton.getPluginName())
I created an apk and installed it on my Android device. The problem is that when I press the button (and the function _pressed() is called), I can see from the logcat the error Nonexistent function 'getPluginName' in base 'JNISingleton'
I am sure that the plugin is found, because the "singleton" variable is not null.
What am I doing wrong?

I found out that in Godot I can only call custom functions. The methods of the class GodotPlugin (such as getPluginName, getPluginMethods...) cannot be directly called.

In my case, I needed to define methods in getPluginMethods in my GodotPlugin like this:
public void firstMethod() {
// TODO
}
public void secondMethod() {
// TODO
}
#SuppressWarnings("deprecation")
#NonNull
#Override
public List<String> getPluginMethods() {
return Arrays.asList("firstMethod", "secondMethod");
}
I don't know why this case is not documented, but I wasted a lot of time on this and I think it would be useful for other people...

Override conversion errors when creating custom button renderer

I am trying to override the default behavior of the Android button renderer in Xamarin Forms. I have leveraged (not stolen;) the source code from https://learn.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/visual/create and have created this:
namespace Patron.Droid.Renderers
{
public class MixedCaseButtonRenderer : Xamarin.Forms.Platform.Android.AppCompat.ButtonRenderer
{
public MixedCaseButtonRenderer(Context context) : base(context)
{
}
protected override void OnElementChanged(ElementChangedEventArgs<Button> el)
{
base.OnElementChanged(el);
if (el.OldElement != null)
{
// Cleanup
}
if (el.NewElement != null)
{
var button = (Button)this.Control;
button.SetAllCaps(false);
}
}
}
}
But when I build it, I get the following errors
Severity Code Description Project File Line Suppression State
Error CS0115 'MixedCaseButtonRenderer.OnElementChanged(ElementChangedEventArgs<Button>)': no suitable method found to override Patron.Android C:\Users\ThomH\workspace\patron\Patron\Patron\Patron.Android\Renderers\MixedCaseButtonRenderer.cs 22 Active
Error CS0311 The type 'Android.Widget.Button' cannot be used as type parameter 'TElement' in the generic type or method 'ElementChangedEventArgs<TElement>'. There is no implicit reference conversion from 'Android.Widget.Button' to 'Xamarin.Forms.Element'. Patron.Android C:\Users\ThomH\workspace\patron\Patron\Patron\Patron.Android\Renderers\MixedCaseButtonRenderer.cs 22 Active
Error CS1503 Argument 1: cannot convert from 'Xamarin.Forms.Platform.Android.ElementChangedEventArgs<Android.Widget.Button>' to 'Xamarin.Forms.Platform.Android.ElementChangedEventArgs<Xamarin.Forms.Button>' Patron.Android C:\Users\ThomH\workspace\patron\Patron\Patron\Patron.Android\Renderers\MixedCaseButtonRenderer.cs

Button exists in both Android.Widget and Xamarin.Forms. You need to specify which namespace you mean to use

Remove shadow from Android Button built in Xamarin forms

I am trying to get rid of the shadow that is being displayed at the bottom of a button in android built using xamarin forms. I have tried all that I could. But I have not achieved it.
I have attached an image for reference.
I request your'l to help me and put me out of my misery.
Thanks in advance

1) Create custom control and derive it from Button.
public class ButtonWithoutShadow : Button
{
}
2) Create custom renderer
[assembly: ExportRenderer(typeof(ButtonWithoutShadow), typeof(ButtonWithoutShadowRenderer))]
public class ButtonWithoutShadowRenderer : ButtonRenderer
{
protected override void OnElementChanged(ElementChangedEventArgs<Button> e)
{
base.OnElementChanged(e);
if (Control != null)
{
Control.Elevation = 0;
}
}
}
3) In xaml page use this button:
<controls:ButtonWithoutShadow TextColor="White" HorizontalOptions="Center" WidthRequest="185" HeightRequest="52" BackgroundColor="#ffcd00" Font="Roboto-Regular" FontSize="23" Text="Поиск" BorderRadius="0" BorderWidth="0" />

[assembly: ExportRenderer(typeof(Button),typeof(FlatButtonRenderer))]
namespace Project.Droid
{
public class FlatButtonRenderer : ButtonRenderer
{
protected override void OnDraw(Android.Graphics.Canvas canvas)
{
base.OnDraw(canvas);
}
}
}
<Button BackgroundColor="Transparent" Text="ClickMe"/>
Source : https://stackoverflow.com/a/39966574/7794690

For me, only thing that removed the shadow was doing this in a custom button render:
Control.StateListAnimator = null;
It may be dependent on API level, though, so might also require:
Control.Elevation = 0;

Monodroid - Loading a custom activity

I'm currently trying to develop an application under Android using Mono.
I'd like to add support for plugins to my application so additional features could be brought to it.
I was able to load simple .dll at runtime in my program, however whenever I try creating a dll implementing both my interface and a custom activity, an exception of type Java.Lang.NoClassDefFoundError is thrown.
There is the class inside the dll code:
[Activity (Label = "Vestiaire")]
public class Vestiaire : Activity, IModule
{
public string Name { get; set; }
public string Version { get; set; }
void OnClickVestiaireButton(object sender, System.EventArgs e)
{
;
}
public void InitVestiaireModule()
{
Run();
}
public Type LaunchActivity ()
{
return typeof(Vestiaire);
}
public void Init()
{
Name = "Vestiaire Module";
Version = "0.1";
}
public void Run()
{
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
}
}
The line responsible for the exception: (from the program core)
LoadedPlugin.Add((IModule)(Activator.CreateInstance(Plugin)));
Things I'm actually wonderring are:
- Is it possible to actually achieve what i'm trying to ?
If yes, help would be apreciated on that problem :P
Otherwise what would be the best alternative ?
Global point is to be able to load a custom menu at runtime loaded from a dll.
Thanks.

i think the key to your problem is that the Activity needs to be registered in you Manifest.xml file.
For Activities in you main app, MonoDroid does this for you - but I don't think this will work for your plugin.
Things you could try are:
putting the Activity in the Manifest yourself (MonoDroid does seem very capable at merging these files)
if that doesn't work, then you could try using a Fragment instead - and loading the Fragment into a custom FragmentActivity in your main app.