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

Solution 1

You can use something like this:

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

And then use the id.

Solution 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)

Comments

[klys]

and what about in kotlin?

[Ted Hopp]

@JrJimnz - You use exactly the same method calls and just change the syntax for declaring the variables. See here for instance.