Dynamically get drawables by ID
android, java
Solution
Use `getResources().getIdentifier()` from your `Context` (e.g., `Activity`), but please cache the result if you will use it more than once. `getIdentifier()` is implemented on `Resources`.
For example:
int drawableId=getResources().getIdentifier("foo"+index, "drawable", getPackageName());
would return the value of `R.drawable.fooN`, where `N` is the number given by `index`.
For more, see this and this and this.
Problem
I want to take a `byte` and append it to a resource ID to be able to get the image that corresponds to that numbered deck in the game. It was easy to with paths on other devices, but with the Resource ID's I am unsure how I could go about do this. Here's what I have now: ``` switch(GameSettings.gameDeck) { case 1: deckImage.setBackgroundResource(R.drawable.deck1); break; case 2: deckImage.setBackgroundResource(R.drawable.deck2); break; case 3: deckImage.setBackgroundResource(R.drawable.deck3); break; case 4: deckImage.setBackgroundResource(R.drawable.deck4); break; } ``` In my Blackberry version of this, I simply had: ``` deckImage.setBitmap(Bitmap.getBitmapResource("/path/deck" + GameSettings.gameDeck + ".png")); ``` Is there a way to accomplish something similar using Resource IDs on Android?