Please find below the code, I have created an ‘EditText’ and a ‘Button’ in the xml layout. Input a number in the ‘EditText’ and click the Button , The same no. of radio buttons will be added in the Layout. This is your ActivityMain public class ActivityMain extends AppCompatActivity implements View.OnClickListener { EditText mEtNumOfRadioBtns; Button … Read more
Please help me on whether the pros and cons I came across are sensible or not? The concern I have with your pros and cons is that some of them do not address differences between using reflection and using dynamic. That dynamic typing makes for bugs that are not caught until runtime is true of … Read more
As you described, there are many different approaches you could take by ultimately they boil down to two different categories: 1) code compilation and 2) code evaluation. The example you described above requires compilation, which will define a module and then you would have to invoke it. However, as you found out, it requires defining … Read more
The only way in MySQL to do this dynamically is with Prepared statements. Here is a good article about them: Dynamic pivot tables (transform rows to columns) Your code would look like this: SET @sql = NULL; SELECT GROUP_CONCAT(DISTINCT CONCAT( ‘MAX(IF(pa.fieldname=””‘, fieldname, ”’, pa.fieldvalue, NULL)) AS ‘, fieldname ) ) INTO @sql FROM product_additional; SET … Read more
Dynamic initialization is that in which initialization value isn’t known at compile-time. It’s computed at runtime to initialize the variable. Example, int factorial(int n) { if ( n < 0 ) return -1; //indicates input error else if ( n == 0 ) return 1; else return n * factorial(n-1); } int const a = … Read more
Use send: def set_property(obj, prop_name, prop_value) obj.send(“#{prop_name}=”,prop_value) end
You can’t. You need to contruct the sql with string concatenation/placeholder with String.format. prepared statement is for the column values not for table name.
As the documentation for MethodInfo.Invoke states, the first argument is ignored for static methods so you can just pass null. foreach (var tempClass in macroClasses) { // using reflection I will be able to run the method as: tempClass.GetMethod(“Run”).Invoke(null, null); } As the comment points out, you may want to ensure the method is static … Read more
Whatever your home screen is has special hooks for whatever your calendar app is and whatever your alarm clock app is. In general, apps cannot update their icons. What do you mean by hooks? For example, Samsung can ship a Samsung calendar app on Samsung devices. Samsung’s home screen on those same Samsung devices can … Read more