Question

I am trying to display an image in my app that changes everytime I press a button.
The name of the image that should be shown is in my object. I can get the name of the image with

String nameOfImage = myObhect.get(i).getImageName();

Now, I want to display the current image with

iv.setImageResource(R.drawable.notruf);

Using setImageResource , I don´t know how to bring the name of my image in setImageResource because, for example

iv.setImageResource(R.drawable. + aktbild) isn´t possible for sure.

I also tried the way with setImageDrawable but that does not work for me.

Answer 1

I use similar solution in my application :

Context mContext = this;  // I supposed you're in Activity
String imgName = fragenkatalog.get(i).getBild();
int resId = mContext.getResources().getIdentifier(imgName,
                        "drawable", mContext.getApplicationInfo().packageName);
if(resId > 0){
    iv.setImageResource(resId);
}