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最新推荐文章于 2021-11-07 13:24:28 发布

翻译最新推荐文章于 2021-11-07 13:24:28 发布 · 511 阅读

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本文介绍了一种在安卓应用内部实现新闻图片过渡动画的方法，并展示了如何通过代码随机更改应用内的Shape背景颜色。

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1.放大效果 跳转
NewsBean news = mAdapter.getItem(position);
Intent intent = new Intent(getActivity(), NewsDetailActivity.class);
intent.putExtra("news", news);

View transitionView = view.findViewById(R.id.ivNews);
ActivityOptionsCompat options =
        ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity(),
                transitionView, getString(R.string.transition_news_img));

ActivityCompat.startActivity(getActivity(), intent, options.toBundle());

2.在代码中修改Shape的solid属性的color值
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <corners android:radius="5dp" />
    <solid android:color="@color/white" />
</shape>

String colors[] = {"#4EFE37","#030F7B","#69548E","#AD5311","#2CAE2B","#4A9C89","#FE3961"};Random random = new Random();
GradientDrawable drawable =(GradientDrawable)viewHolder.tvImg.getBackground();
drawable.setColor(Color.parseColor(colors[random.nextInt(colors.length-1)]));