How to find View from string instead of R.id

Question

Let's assume I have this in layout of res in my app

    <TextView android:id="@+id/titleText" android:layout_width="fill_parent"         android:layout_height="wrap_content" android:text="@string/app_name"         android:textColor="#ffffffb0" android:padding="5px" /> 

In my activity, I get the TextView using this command

 TextView tv = (TextView)findViewById(R.id.titleText); 

But I am looking for another method like this

 TextView tv = (TextView)findViewByString("R.id."+"titleText"); 

because I need to enumerate those ids. Can any of you give a hint or clue how I can go about it? Thanks

Answer 1

You can use something like this:

Resources res = getResources(); int id = res.getIdentifier("titleText", "id", getContext().getPackageName()); 

And then use the id.

Answer 2

In Kotlin you can use this line to get the ID.

val id: Int = resources.getIdentifier("titleText", "id", packageName) 

The returned value can be use as parameter of the function findViewById<TextView>(id).

NOTE: If is called outside of an activity use the context.

val id: Int = context.resources.getIdentifier("titleText", "id", context.packageName)