java - 如何在动画后隐藏textview

Question

我想单击Button它将显示TextView可见(执行幻灯片向下动画)，然后想再次单击该按钮它将执行另一个动画(向上幻灯片)。之后不需要显示 TextView。
我如何解决它？
请任何人有答案来帮助我。

bclickss.setOnClickListener(new View.OnClickListener() {
        boolean visible;
        @Override
        public void onClick(View v) {
            if( visible = !visible) {
            tv2.setVisibility(visible ? View.VISIBLE : View.GONE);
            Animation anim = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.slide_down);
            tv2.startAnimation(anim);
                }
            else {
                Animation anim = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.slide_up);
                tv2.startAnimation(anim);
                tv2.setVisibility(View.GONE);
            }
            }
    });

Answer 1

在startAnimation之前使用它

if (tv2.animation != null) tv2.animation.setAnimationListener(null)//needed not in all cases
tv2.clearAnimation()

anim.setAnimationListener(new Animation.AnimationListener() {
    @Override
    public void onAnimationStart(Animation animation) {
        tv2.setVisibility(View.VISIBLE);
    }
    @Override
    public void onAnimationEnd(Animation animation) {
      tv2.setVisibility(View.GONE);
    }
    @Override
    public void onAnimationRepeat(Animation animation) {}
  });
  tv2.startAnimation(anim);

在第二个动画中，你需要这样的东西:

if (tv2.animation != null) tv2.animation.setAnimationListener(null)//needed not in all cases
tv2.clearAnimation()

anim.setAnimationListener(new Animation.AnimationListener() {
    @Override
    public void onAnimationStart(Animation animation) {
      tv2.setVisibility(View.VISIBLE);
    }
    @Override
    public void onAnimationEnd(Animation animation) {
    }
    @Override
    public void onAnimationRepeat(Animation animation) {}
  });
  tv2.startAnimation(anim);