Is it possible to use the Java 8 Stream API on Android API < 24?

Question

I\'ve read this post here. But still I cannot run code containing Java 8 Stream API features like the following on minSdkVersion < 24.

List new         


        

Answer 1

Create a İnterface.

public interface Pre {
            R get(T item);
        }

Create a Filter Method.

public static   List Filter(List list, Pre pre) {

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
        {
            return list.stream().filter(p -> pre.get(p)).collect(Collectors.toList());
        }
        else
        {
            List col = new ArrayList();
            for (int i = 0 ; i < list.size() ; i++)
                if (pre.get(list.get(i)))
                    col.add(list.get(i));
            return col;
        }
    }

Using Code

    public static class model {
            public String Name;
        }
List models = new ArrayList<>();
            ...
            List filtermodels = Filter(models,p-> p.Name.equals("filter"));