大橙子网站建设,新征程启航
为企业提供网站建设、域名注册、服务器等服务
废话不多说,下面展示一下效果。
在漳县等地区,都构建了全面的区域性战略布局,加强发展的系统性、市场前瞻性、产品创新能力,以专注、极致的服务理念,为客户提供做网站、成都网站制作 网站设计制作定制网站制作,公司网站建设,企业网站建设,成都品牌网站建设,网络营销推广,成都外贸网站建设,漳县网站建设费用合理。这是GridView主文件实现。
public class GridViewActivity extends AppCompatActivity { RecyclerView mRecyclerView; ListmStringList; RecyclerAdapter mRecyAdapter; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_recyclerview); initView(); initRecy(); } private void initView() { getSupportActionBar().setDisplayHomeAsUpEnabled(true); mRecyclerView = (RecyclerView) findViewById(R.id.view_recycler); } private void initRecy() { if (mStringList == null) { mStringList = new ArrayList<>(); } mStringList.addAll(DataManager.getData(20 - mStringList.size())); mRecyAdapter = new RecyclerAdapter(R.layout.item_gridview, mStringList, true); mRecyclerView.setLayoutManager(new GridLayoutManager(this, 4)); mRecyclerView.addItemDecoration(new DividerGriItemDecoration(this)); mRecyclerView.setHasFixedSize(true); RecyItemTouchHelperCallback itemTouchHelperCallback = new RecyItemTouchHelperCallback(mRecyAdapter, false, true); final ItemTouchHelper itemTouchHelper = new ItemTouchHelper(itemTouchHelperCallback); itemTouchHelper.attachToRecyclerView(mRecyclerView); mRecyclerView.addOnItemTouchListener(new OnRecyclerItemClickListener(mRecyclerView) { @Override public void onItemClick(RecyclerView.ViewHolder viewHolder) { RecyclerAdapter.ViewHolder viewHolder1 = (RecyclerAdapter.ViewHolder) viewHolder; String tvString = viewHolder1.mTextView.getText().toString(); Toast.makeText(GridViewActivity.this, "碰了一下 " + tvString, Toast.LENGTH_SHORT).show(); } @Override public void onLongClick(RecyclerView.ViewHolder viewHolder) { RecyclerAdapter.ViewHolder viewHolder1 = (RecyclerAdapter.ViewHolder) viewHolder; String tvString = viewHolder1.mTextView.getText().toString(); Toast.makeText(GridViewActivity.this, "长按不放可以拖动!", Toast.LENGTH_SHORT).show(); if (viewHolder.getLayoutPosition() != 0) { itemTouchHelper.startDrag(viewHolder); } } }); mRecyclerView.setAdapter(mRecyAdapter); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == android.R.id.home) { finish(); } return super.onOptionsItemSelected(item); } }