滾動時佈局高度應該減少平行

Question

我正在設計一個佈局，其中行 佈局的下方有一個recyclerView，當我向上滾動時佈局應平行減少並固定在某個位置。第一個圖像在滾動之前，第二張圖片在滾動後。

Answer 1

您可以使用這些真棒庫，將滿足您的工作。

1-對於ListView的

ParallaxListView

對於RecyclerView

Android Parallax Recycleview

執行情況回收站查看

步驟1。在JitPack庫添加到您的構建文件

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

步驟2。添加依賴

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

用法 （示例項目 - https://github.com/kanytu/example-parallaxrecycler）

• 創建對象列表，並把它傳遞給ParallaxRecyclerAdapter

  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(); 
      } 
  };` 
  

• 構造函數現在我們設置視差頭。您還需要傳遞RecyclerView以實現滾動偵聽器。

  myAdapter.setParallaxHeader(LayoutInflater.from(this).inflate(R.layout.myParallaxView, myRecycler, false), myRecyclerView); 
  

還有一些其他的監聽器可以實現：

// 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);