How can repair this error? “java.lang.IndexOutOfBoundsException”

Question

I\'m trying to do a game with andengine library.

When the Sprite Enemy1Sprite reach the top of the camera, and I detach it, this exception

Answer 1

You've answered your own question really - Marcelo is correct, the issue is not in the code you posted, it's where you are doing the detachChild call - you need to call that on the Update Thread, as in

runOnUpdateThread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
    yourScene.detachChild(yourEnemySprite);
}
});