c# Xamarin.Android mobile how do you pass a char variable from MainActivity to another class

Question

Answer 1

Thank you for the excellent input.
I am able to read a key and select a function from the key.

Answer 2

Hello,

Welcome to our Microsoft Q&A platform!

You can pass the string as a parameter to another class.

You can refer to the following code:

public class TestClass
{

string mStr;  
public TestClass(string str) {  

    this.mStr = str;  

}  

}

usage :

        string scankeyinput = "test string";  
        TestClass model = new TestClass(scankeyinput);  

Update

From the way you accessed string mStr, you should use the static modifier to declare this static member:

    public class TestClass  
{  
    public static string MyStr ="default string";  

}  

And use like this:

        string scankeyinput = "test string";  
       // TestClass model = new TestClass(scankeyinput);  

        TestClass.MyStr = scankeyinput;  // assign string `scankeyinput ` to field `MyStr ` in class `TestClass`.   

       // you can access MyStr like this  
        System.Diagnostics.Debug.WriteLine(" TestClass.MyStr = " + TestClass.MyStr);  

For more details, you can check: https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/static

Best Regards,

Jessie Zhang

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