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我有一个活动,其中几个视图动画。单击包含一些图像的 RelativeLayout 时会触发动画。它在 onCreate() 中设置如下:

mContainer.setOnClickListener(new ContainerClicked());

ContainerClicked() 类如下所示:

private class ContainerClicked implements OnClickListener {

    @Override
    public void onClick(View arg0) {
        Log.i(TAG, "TEST!");
        mSomeButton.setOnClickListener(null);
        mSomeButton.setEnabled(false);

        mAnotherButton.setOnClickListener(null);
        mAnotherButton.setEnabled(false);

        mYetAnotherButton.setOnClickListener(null);
        mYetAnotherButton.setEnabled(false);

        mContainer.setOnClickListener(null);
        if (mLogo.getVisibility() == View.VISIBLE)
            new AnimateToParty().execute();
        else
            new AnimateFromParty().execute();
    }
}

这很有效,并且可以按照我想要的方式为所有内容设置动画。

AnimateToParty() 看起来像这样:

private class AnimateToParty extends AsyncTask<Void, Integer, Void> {

    @Override
    protected void onProgressUpdate(final Integer... values) {
        final View theView = findViewById(values[0]);
        if (!(values[0] == mBackgroundImage.getId() || values[0] == mContainer
                .getId())) {
            final Animation animation = AnimationUtils.loadAnimation(
                    DashboardActivity.this, values[1]);
            animation.setAnimationListener(new AnimationListener() {

                @Override
                public void onAnimationStart(Animation arg0) {
                }

                @Override
                public void onAnimationRepeat(Animation arg0) {
                }

                @Override
                public void onAnimationEnd(Animation arg0) {
                    theView.setVisibility(View.INVISIBLE);
                }
            });
            theView.startAnimation(animation);
        } else if (values[0] == mBackgroundImage.getId()) {
            TransitionDrawable transition = (TransitionDrawable) theView
                    .getBackground();
            transition.startTransition(getResources().getInteger(
                    android.R.integer.config_mediumAnimTime));
        } else {
            TranslateAnimation animation = new TranslateAnimation(0, 0, 0,
                    TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
                            -60, getResources().getDisplayMetrics()));
            animation.setAnimationListener(new AnimationListener() {

                @Override
                public void onAnimationStart(Animation arg0) {
                }

                @Override
                public void onAnimationRepeat(Animation arg0) {
                }

                @Override
                public void onAnimationEnd(Animation arg0) {
                    LayoutParams lp = (LayoutParams) mContainer
                            .getLayoutParams();
                    lp.bottomMargin = 0;
                    RelativeLayout parent = (RelativeLayout) mContainer
                            .getParent();
                    mSomeButton.setVisibility(View.GONE);
                    mAnotherButton.setVisibility(View.GONE);
                    mYetAnotherButton.setVisibility(View.GONE);
                    mLogo.setVisibility(View.GONE);
                    // mContainer.setLayoutParams(lp);
                    // This caused a visible flicker, so I went with the solution below.
                    parent.removeView(mContainer);
                    parent.addView(mContainer, lp);
                }
            });
            animation.setDuration(1000);
            mContainer.startAnimation(animation);
        }
    }

    @Override
    protected Void doInBackground(Void... arg0) {
        try {
            publishProgress(mContainer.getId());
            publishProgress(mLogo.getId(), R.anim.slide_out_up);
            Thread.sleep(100);
            publishProgress(mSomeButton.getId(), R.anim.slide_out_left);
            Thread.sleep(110);
            publishProgress(mAnotherButton.getId(), R.anim.slide_out_left);
            Thread.sleep(120);
            publishProgress(mYetAnotherButton.getId(), R.anim.slide_out_left);
            Thread.sleep(130);
            publishProgress(mBackgroundImage.getId());
            Thread.sleep(550);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    protected void onPostExecute(Void result) {
        mContainer.setOnClickListener(new LighterClicked());
    }
}

上面的类对一些按钮和徽标进行动画处理,然后显示容器。为了保持它在那里,我改变了它的布局参数。只需更改它们就会产生可见的闪烁,其中容器会向上跳跃 60 度大约一帧(动画似乎还没有完全完成),然后才能到达我想要的位置。我在某处阅读以将其从其父项中删除并将其放回原处,这不会产生相同的闪烁。但是,现在重新绑定 onclicklistener 不起作用!

我几乎尝试了所有方法,现在我注意到,如果我按下主页按钮并再次打开应用程序,每次没有“通过”的点击都会触发。

有没有更好的方法来避免“闪烁”?制作动画的更好方法?(我对动画视图很陌生)为什么当我重新打开应用程序时点击事件会触发?

4

1 回答 1

4

为了避免您看到的闪烁,您必须在 onAnimationEnd 开始时调用clearAnimation ( )

@Override
public void onAnimationEnd(Animation arg0) {
    theView.clearAnimation()
    ...
}
于 2011-06-16T20:06:56.687 回答