Enable iterate through R file in android

Question

I'm trying to iterate through all R.id to find all ImageView objects and change there properties. but Android studio gives me an error.

here is code

public void initializeChipsViewholdersArray (){
   for (int i = 1; i<10; i ++){
        String viewholderName = "chip_00"+i;
       int id_2 = R.id.class.getFields(viewholderName).getInt(0);//erorr here
   ImageView chipViewholder= (ImageView)findViewById(id);
           chipViewholder.setVisibility(View.INVISIBLE);
}

here is error

Error:(28, 33) error: method getFields in class Class cannot be applied to given types; required: no arguments found: String reason: actual and formal argument lists differ in length where T is a type-variable: T extends Object declared in class Class

The solution I choose has been discussed here How do I iterate through the id properties of R.java class?

Class.getFields() doesn't take an argument. Did you mean getField().get(null)? — Doug Stevenson, Mar 29 '16 at 06:38
`getFields()` return all the public fields inside the `R.id` class, which is a static inner class inside the `R` class, which is a Java auto generated class for Resources. That method, `getFields()`, doesn't take any argument — William Kinaan, Mar 29 '16 at 09:15
Possible duplicate of [How do I iterate through the id properties of R.java class?](http://stackoverflow.com/questions/2941459/how-do-i-iterate-through-the-id-properties-of-r-java-class) — William Kinaan, Mar 29 '16 at 09:19

score 0 · Accepted Answer · answered Mar 29 '16 at 09:18

getFields() return all the public fields inside the R.id class, which is a static inner class inside the R class, which is a Java auto generated class for Resources. That method, getFields(), doesn't take any argument

You are looking for getField(), not getFields()

public void initializeChipsViewholdersArray (){
   for (int i = 1; i<10; i ++){
        String viewholderName = "chip_00"+i;
       int id_2 = R.id.class.getField(viewholderName).getInt(0);
   ImageView chipViewholder= (ImageView)findViewById(id);
           chipViewholder.setVisibility(View.INVISIBLE);
}

Enable iterate through R file in android

1 Answers1