I am trying to reference a class that is in my application (MainActivity.class) from my Android project library.
To give an outline of the structure, it appears as so:
ExampleApp (src/com.example.recorder):
--->MainActivity
then inside ExampleLibrary (src/main/src/com.example.library):
---> FragManage
so from within FragManage:
// Get FragManage's tag for reference.
String myTag = getTag();
MainActivity.setTagFragManage(myTag);
but in Android studio I receive the error:
Cannot resolve symbol 'MainActivity'
Is there a way to create a reference to the class from the library? Also, I cannot just hardcode the path to MainActivity as I share this library with a Free version of my app.
I guess you should be referencing the other way round, objects from the library should be referenced from the application.
Anyway, what you could do is to create an interface or a base class in your library and use that in the library code. Then in your main app you could write the implementation of the interface or a child class.
Related
What I am doing: Call the method inside the class in a very simple jar from main Activity. (The jar will be used as sdk to make connection with a server but right now is for testing)
Error message
This is all the code in my jar, just 1 class
I have tried this, and changed the class into singleton pattern and this, and make everything in the class public. I also found this one but same error different issue
Create class as public class to make it accessible. In java if you don't provide any access modifier it becomes default.
Refer Java Access Modifiers here
public class Jartest{
//Your Implementation
}
In addition to create the class with public modifier, all classes must be warped inside a package. Otherwise it becomes default package and there is no way to access it beside reflection. In another word, when you create the jar, create the class inside a package and Android studio should be able to import the package and use the class inside the jar.
So I'm trying to follow the simple read.me for Kotshi and get it set up for my project but I seem to be hitting a little snag.
I'm currently at this portion of the read.me
#KotshiJsonAdapterFactory
object ApplicationJsonAdapterFactory: KotshiApplicationJsonAdapterFactory()
but KotshiApplicationJsonAdapterFactory seems to give me an unresolved reference error. Now this sounds like an absolutely silly question but is KotshiApplicationJsonAdapterFactory supposed to be a custom class that I set up? If so I don't see anywhere in the documentation regarding it. My gradle has the two dependencies added so I'm absolutely baffled.
#KotshiJsonAdapterFactory makes Kotshi generate a JsonAdapter factory.
Should be placed on an abstract class that implements
JsonAdapter.Factory.
So yes, KotshiApplicationJsonAdapterFactory is a custom class that you've to setup and which fulfills the above condition.
KotshiJsonAdapterFactory is an annotation that you apply to a class that you write. This will make Kotshi generate a class with the same name as your class + the Kotshi prefix. That class will implement the actual factory.
When you write your class it will look like you have a compile error, but it will not prevent compilation.
I have a class name String and a String which containing the class code. For example, "Example" is the name of the class, and
public class Example {
public void example () {System.out.println ("Hello world!"); }
}
The class code.
I looked at the Dexmaker library, but I did not understand if it's possible to compile the generated code into it. And the question is just how to compile the code string under Android?
Not sure if possible at all the compilation within the embedded system but definitelly you can parse and run the code using beanshell:
http://www.beanshell.org/
it is lightweight and easily to embed in your app. Then you can instance the generated class and run whatever you put inside.
There is only one true way: using DexMaker. All examples you can find on DexMaker wiki and especially for current problem (runtime generation code on android).
i'm trying to bind the core library: https://github.com/gabrielemariotti/cardslib
I downloaded the .AAR file from Maven Central and did everything in this tutorial Binding an .AAR, but when i'm building the Binding Library i'm getting this errors:
'CardExpandableListAdapter' does not implement inherited abstract member 'BaseExpandableListAdapter.GetGroup(int)'
Inconsistent accessibility: return type 'CardWithList.LinearListAdapter' is less accessible than method 'CardWithList.GetLinearListAdapter()'
Inconsistent accessibility: parameter type 'CardWithList.LinearListAdapter' is less accessible than method 'CardWithList.SetLinearListAdapter(CardWithList.LinearListAdapter)'
Inconsistent accessibility: property type 'CardWithList.LinearListAdapter' is less accessible than property 'LinearListView.Adapter'
'CardView' does not implement interface member 'ICardViewWrapper.SetExpanded(bool)'
'CardView' does not implement interface member 'ICardViewWrapper.SetForceReplaceInnerLayout(bool)'
'CardView' does not implement interface member 'ICardViewWrapper.SetLongClickable(bool)'
'CardView' does not implement interface member 'ICardViewWrapper.SetOnExpandListAnimatorListener(ICardViewWrapperOnExpandListAnimatorListener)'
'CardView' does not implement interface member 'ICardViewWrapper.SetRecycle(bool)'
It looks like the binding generator has some bugs, is there any fix for this?
Thanks in advance.
From Xamarin's page,
When you are generating Java Bindings, there are several common error scenarios that you may run into.
Here is the link to possible errors you might run into and how to resolve them.
Link for how to fix "Interface does not implement method"
Inconsistent accessibility issue can be resolved by changing the visibility accordingly. Here is an example of how to modify visibility
<attr path="/api/package[#name='com.somepackage']/class[#name='SomeClass']" name="visibility">public</attr>
I have setup my own android library and now want to use the methods within..
For some reason I am having issues understanding how this works, looking at other questions/ internet has not helped.
In my library class i have the following.
public void testMethod(){
Toast s = Toast.makeText(this, "test!", Toast.LENGTH_SHORT).show();
}
I want to be able to reference this in my main for example, how do i do this?
I have found several links which do look at this however it has not helped as it is different to what I want to do. Am I being very stupid and missing something?
I am guessing an interface needs to be setup on my Main Class? I am not sure.
By the way I have already setup the library and have referenced in manifest etc..
You should import to your project the package name you used to create your library, then, create an object of the class you want to use from your library, and finally, call the method.
Supose your library package name it's: "com.mylibrary"
Your library class it's called: "MyClass"
Your method it's called: "MyMethod"
In Your Project you should do:
//Import Your Library Package
import com.mylibrary;
//Instantiate The Library Class
MyClass mytest = new MyClass();
//Call The Library Class Method You Want To Use.
mytest.MyMethod();