我有這樣的代碼:如何在監聽器中使用上下文?
else if (v == mSettings)
{
if (disappearView.getVisibility() == View.VISIBLE)
{
AlphaAnimation fadeOutAnimation = new AlphaAnimation(1, 0); // start alpha, end alpha
fadeOutAnimation.setDuration(1000); // time for animation in milliseconds
fadeOutAnimation.setFillAfter(true); // make the transformation persist
Animation out = AnimationUtils.makeOutAnimation(this, true);
disappearView.startAnimation(out);
disappearView.setVisibility(View.INVISIBLE);
out.setAnimationListener(new Animation.AnimationListener()
{
public void onAnimationEnd(Animation animation)
{
disappearView.setVisibility(View.GONE);
Animation in = AnimationUtils.loadAnimation(this, android.R.anim.fade_in);
bannerView.startAnimation(in);
bannerView.setVisibility(View.VISIBLE);
}
@Override
public void onAnimationRepeat(Animation animation) { }
@Override
public void onAnimationStart(Animation animation) { }
});
}
else {
Animation in = AnimationUtils.loadAnimation(this, android.R.anim.fade_in);
disappearView.startAnimation(in);
disappearView.setVisibility(View.VISIBLE);
bannerView.setVisibility(View.INVISIBLE);
bannerView.setVisibility(View.GONE);
}
}
它所有的工作除了本節中的animationListener:
Animation in = AnimationUtils.loadAnimation(this, android.R.anim.fade_in);
它想要一個有效的上下文,但它正在接收animationListener,做什麼方面,我給它,情境真的讓我感到困惑。