在Android中如何为ListView添加ItemDecoration

要为ListView添加ItemDecoration，需要创建一个自定义的ItemDecoration类，并且将其应用到ListView中。

以下是一个示例代码：

public class MyItemDecoration extends RecyclerView.ItemDecoration {
    

    private int space;


    public MyItemDecoration(int space) {
    
        this.space = space;

    }


    @Override
    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
    
        outRect.left = space;
    
        outRect.right = space;
    
        outRect.bottom = space;


        // Add top margin for the first item to avoid double space between items
        if (parent.getChildAdapterPosition(view) == 0) {
    
            outRect.top = space;

        }
 else {
    
            outRect.top = 0;

        }

    }

}
    

然后在ListView中应用这个ItemDecoration：

RecyclerView recyclerView = findViewById(R.id.recyclerView);
    
recyclerView.addItemDecoration(new MyItemDecoration(10));
    

这样就可以为ListView添加自定义的ItemDecoration，并设置间距大小。

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