Android 向上滚动时，布局高度应平行降低

我正在设计一个布局，在该行下方有一个recyclerView 布局，当我向上滚动时，行布局应该平行减少并固定在某个位置。第一个图像在滚动之前，第二个图像在滚动之后

---

您可以使用这些很棒的库来完成您的工作

1-对于ListView

用于RecyclerView

回收者视图的实施

步骤1。将JitPack存储库添加到构建文件中

repositories {
    maven {
        url "https://jitpack.io"
    }
}

步骤2。添加依赖项

dependencies {
    compile 'com.github.kanytu:android-parallax-recyclerview:v1.7'
}

用法 （示例项目-）

• 创建对象列表并将其传递给视差回收器适配器的构造函数

  List<String> myContent = new ArrayList<String>(); // or another object list
  ParallaxRecyclerAdapter<String> adapter = new ParallaxRecyclerAdapter<String>(content) {
      @Override
      public void onBindViewHolderImpl(RecyclerView.ViewHolder viewHolder, ParallaxRecyclerAdapter<String> adapter, int i) {
        // If you're using your custom handler (as you should of course) 
        // you need to cast viewHolder to it.
        ((MyCustomViewHolder) viewHolder).textView.setText(myContent.get(i)); // your bind holder routine.
      }
  
      @Override
      public RecyclerView.ViewHolder onCreateViewHolderImpl(ViewGroup viewGroup, final ParallaxRecyclerAdapter<String> adapter, int i) {
        // Here is where you inflate your row and pass it to the constructor of your ViewHolder
        return new MyCustomViewHolder(LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.myRow, viewGroup, false));
      }
  
      @Override
      public int getItemCountImpl(ParallaxRecyclerAdapter<String> adapter) {
        // return the content of your array
        return myContent.size();
      }
  };`
  

您还可以实现几个其他侦听器：

// Event triggered when you click on a item of the adapter.
void onClick(View v, int position); 

// Event triggered when the parallax is being scrolled.
void onParallaxScroll(float percentage, float offset, View parallax); 

---

感谢您的回答，但我必须制作可点击的“同步”按钮。有监听器可用于点击回收器视图的视差标题

void onClick（视图v，int位置）删除了我的否决票，谢谢你改进了答案。
// Event triggered when you click on a item of the adapter.
void onClick(View v, int position); 

// Event triggered when the parallax is being scrolled.
void onParallaxScroll(float percentage, float offset, View parallax);