How Can I Get Android Resource IDs Using Their Names?

Retrieve Resource Ids Using Resource Names

Accessing resources such as strings and drawables by their names instead of their integer IDs is sometimes necessary.

Method:

To achieve this, use the getIdentifier() method of the Resources class. The following code sample demonstrates obtaining a drawable resource ID by its name:

int drawableResourceId = getResources().getIdentifier("nameOfDrawable", "drawable", getPackageName());

This method can also be used to obtain IDs for other resource types, such as strings and UI elements:

// String resource
int stringResourceId = getResources().getIdentifier("nameOfString", "string", getPackageName());

// UI element ID
int viewId = getResources().getIdentifier("nameOfView", "id", getPackageName());

Caution:

Note that using this method for resource retrieval is relatively slow, so it should be used sparingly. For performance-sensitive applications, it's recommended to use integer IDs instead.

Reference:

Resources.getIdentifier(String name, String defType, String defPackage) documentation: https://developer.android.com/reference/android/content/res/Resources#getIdentifier(java.lang.String, java.lang.String, java.lang.String)

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