ExternalActionScroller

ExternalActionScroller is Android library for scrollable view component(Ex. ListView RecyclerView) can be scrolled by pressing the Hardware key on the you're Android smartphone and External Device :)

Support Component

• ListView
• RecyclerView

How do I use it?

Setup

Gradle

compile 'jp.yitt:ExternalActionScroller:0.1.0'

Functions

Available Keycode

Hardware Key

KeyEvent Macro

KeyEvent AndroidDevelop

ListView

public class ListViewActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_list_view);

        List<String> list = new ArrayList<>();
        for (int i=1; i<=100; i++){
            list.add("Item"+i);
        }

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, list);
        ListView listView = (ListView)findViewById(R.id.listView);
        listView.setAdapter(adapter);

        ExternalActionScroller eas = new ExternalActionScroller.Builder(listView).key(KeyEvent.KEYCODE_VOLUME_UP, KeyEvent.KEYCODE_VOLUME_DOWN).build();

    }
}

RecyclerView

public class RecyclerViewActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_recycler_view);

        List<String> list = new ArrayList<>();
        for (int i=1; i<=100; i++){
            list.add("Item"+i);
        }

        RecyclerAdapter adapter = new RecyclerAdapter(list);
        RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        recyclerView.setAdapter(adapter);

        ExternalActionScroller eas = new ExternalActionScroller.Builder(recyclerView).key(KeyEvent.KEYCODE_VOLUME_UP, KeyEvent.KEYCODE_VOLUME_DOWN).build();


    }
}

Options

• key(int upScrollKey, int downScrollKey)
• duration(Int ms)
• distance(Int dp)
• autoSpeed(Int dpps) display point per second

Use Case

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