クリック可能なアイテムの新しいアクティビティを開くにはどうすればよいですか？

Question

私はJavaの初心者です。彼の仕事のためのグリッドテンプレートをダウンロードしました。私は非常に短い時間を持っているので、このすべてから学ぶことはできません。このコードで、白いページを持っている新しいアクティビティでクリック可能なアイテムを作成する方法を教えてください。

主な活動

public class MainActivity extends AppCompatActivity { 

private RecyclerView recyclerView; 
private AlbumsAdapter adapter; 
private List<Album> albumList; 


@Override 

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
    setSupportActionBar(toolbar); 

    initCollapsingToolbar(); 

    recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 

    albumList = new ArrayList<>(); 
    adapter = new AlbumsAdapter(this, albumList); 

    RecyclerView.LayoutManager mLayoutManager = new GridLayoutManager(this, 2); 
    recyclerView.setLayoutManager(mLayoutManager); 
    recyclerView.addItemDecoration(new GridSpacingItemDecoration(2, dpToPx(10), true)); 
    recyclerView.setItemAnimator(new DefaultItemAnimator()); 
    recyclerView.setAdapter(adapter); 

    prepareAlbums(); 

    try { 
     Glide.with(this).load(R.drawable.bghedb).into((ImageView) findViewById(R.id.backdrop)); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 
} 

/** 
* Initializing collapsing toolbar 
* Will show and hide the toolbar title on scroll 
*/ 
private void initCollapsingToolbar() { 
    final CollapsingToolbarLayout collapsingToolbar = 
      (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar); 
    collapsingToolbar.setTitle(" "); 
    AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.appbar); 
    appBarLayout.setExpanded(true); 

    // hiding & showing the title when toolbar expanded & collapsed 
    appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() { 
     boolean isShow = false; 
     int scrollRange = -1; 

     @Override 
     public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) { 
      if (scrollRange == -1) { 
       scrollRange = appBarLayout.getTotalScrollRange(); 
      } 
      if (scrollRange + verticalOffset == 0) { 
       collapsingToolbar.setTitle(getString(R.string.app_name)); 
       isShow = true; 
      } else if (isShow) { 
       collapsingToolbar.setTitle(" "); 
       isShow = false; 
      } 
     } 
    }); 
} 

/** 
* Adding few albums for testing 
*/ 
private void prepareAlbums() { 
    int[] covers = new int[]{ 
      R.drawable.foto1, 
      R.drawable.foto2, 
      R.drawable.foto3, 
      R.drawable.foto4, 
      R.drawable.foto5, 
      R.drawable.foto6, 
      R.drawable.foto7, 
      R.drawable.foto8, 
      R.drawable.foto9, 
      R.drawable.foto10, 
      }; 

    Album a = new Album("Start A Blog", 13, covers[0]); 
    albumList.add(a); 

    a = new Album("Start A YouTube Channel", 8, covers[1]); 
    albumList.add(a); 

    a = new Album("Sell Websites On Flippa", 11, covers[2]); 
    albumList.add(a); 

    a = new Album("Join Leapforce", 12, covers[3]); 
    albumList.add(a); 

    a = new Album("Use CashPirate App", 14, covers[4]); 
    albumList.add(a); 

    a = new Album("Use ReceiptHog App", 1, covers[5]); 
    albumList.add(a); 

    a = new Album("Join Micro Job Sites", 11, covers[6]); 
    albumList.add(a); 

    a = new Album("Do CPA Marketing", 14, covers[7]); 
    albumList.add(a); 

    a = new Album("Start Copywriting", 11, covers[8]); 
    albumList.add(a); 

    a = new Album("Develop Mobile Apps", 17, covers[9]); 
    albumList.add(a); 

    adapter.notifyDataSetChanged(); 
} 


/** 
* RecyclerView item decoration - give equal margin around grid item 
*/ 
public class GridSpacingItemDecoration extends RecyclerView.ItemDecoration { 

    private int spanCount; 
    private int spacing; 
    private boolean includeEdge; 

    public GridSpacingItemDecoration(int spanCount, int spacing, boolean includeEdge) { 
     this.spanCount = spanCount; 
     this.spacing = spacing; 
     this.includeEdge = includeEdge; 
    } 

    @Override 
    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) { 
     int position = parent.getChildAdapterPosition(view); // item position 
     int column = position % spanCount; // item column 

     if (includeEdge) { 
      outRect.left = spacing - column * spacing/spanCount; // spacing - column * ((1f/spanCount) * spacing) 
      outRect.right = (column + 1) * spacing/spanCount; // (column + 1) * ((1f/spanCount) * spacing) 

      if (position < spanCount) { // top edge 
       outRect.top = spacing; 
      } 
      outRect.bottom = spacing; // item bottom 
     } else { 
      outRect.left = column * spacing/spanCount; // column * ((1f/spanCount) * spacing) 
      outRect.right = spacing - (column + 1) * spacing/spanCount; // spacing - (column + 1) * ((1f/ spanCount) * spacing) 
      if (position >= spanCount) { 
       outRect.top = spacing; // item top 
      } 
     } 
    } 
} 

/** 
* Converting dp to pixel 
*/ 
private int dpToPx(int dp) { 
    Resources r = getResources(); 
    return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, r.getDisplayMetrics())); 


} 

ALBUMアダプター

public class AlbumsAdapter extends RecyclerView.Adapter<AlbumsAdapter.MyViewHolder> { 

private Context mContext; 
private List<Album> albumList; 

public class MyViewHolder extends RecyclerView.ViewHolder { 
    public TextView title, count; 
    public ImageView thumbnail, overflow; 

    public MyViewHolder(View view) { 
     super(view); 
     title = (TextView) view.findViewById(R.id.title); 
     count = (TextView) view.findViewById(R.id.count); 
     thumbnail = (ImageView) view.findViewById(R.id.thumbnail); 
     overflow = (ImageView) view.findViewById(R.id.overflow); 
    } 
} 


public AlbumsAdapter(Context mContext, List<Album> albumList) { 
    this.mContext = mContext; 
    this.albumList = albumList; 
} 

@Override 
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
    View itemView = LayoutInflater.from(parent.getContext()) 
      .inflate(R.layout.album_card, parent, false); 

    return new MyViewHolder(itemView); 
} 

@Override 
public void onBindViewHolder(final MyViewHolder holder, int position) { 
    Album album = albumList.get(position); 
    holder.title.setText(album.getName()); 


    // loading album cover using Glide library 
    Glide.with(mContext).load(album.getThumbnail()).into(holder.thumbnail); 

    holder.overflow.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 

     } 
    }); 
} 

/** 
* Showing popup menu when tapping on 3 dots 
*/ 



@Override 
public int getItemCount() { 
    return albumList.size(); 
} 

ALBUM

public Album(String name, int numOfSongs, int thumbnail) { 
    this.name = name; 
    this.numOfSongs = numOfSongs; 
    this.thumbnail = thumbnail; 
} 

public String getName() { 
    return name; 
} 

public void setName(String name) { 
    this.name = name; 
} 

public int getNumOfSongs() { 
    return numOfSongs; 
} 

public void setNumOfSongs(int numOfSongs) { 
    this.numOfSongs = numOfSongs; 
} 

public int getThumbnail() { 
    return thumbnail; 
} 

public void setThumbnail(int thumbnail) { 
    this.thumbnail = thumbnail; 
} 

誰かが私を助けることができますか？私の問題は、私が0 Androidから学ぶ気にする自由な時間を持つ人の後に、新しい文字列を新しいページにする必要がありますか？

Answer 1

は単に私はあなたがあなたの質問を明確にすることができます欲しいものを理解問題を持って、これらの線に

holder.overflow.setOnClickListener(new View.OnClickListener() { 
    @Override 
    public void onClick(View view) { 
     Intent intent = new Intent(context, YourActivity.class).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK) 
     context.startActivity(intent); 
    } 
});