如何为不同的list item呈现不同的菜单,本文实例就为大家介绍了Android仿微信或QQ滑动弹出编辑、删除菜单效果、增加下拉刷新等功能的实现,分享给大家供大家参考,具体内容如下
效果图:
1. 下载开源项目,并将其中的liberary导入到自己的项目中:
2. 使用SwipeMenuListView代替ListView,在页面中布局:
<android.support.v4.widget.SwipeRefreshLayout android:id="@+id/swipeRefreshMusic" android:layout_width="match_parent" android:layout_height="wrap_content"> <com.baoyz.swipemenulistview.SwipeMenuListView android:id="@+id/listViewMusic" android:layout_width="match_parent" android:layout_height="match_parent" /> </android.support.v4.widget.SwipeRefreshLayout>
注: SwipeRefreshLayout主要是为了给该列表增加下拉刷新功能!
3. 为该ListView创建适配器,与正常的实现并无二致:
public class MusicAdapter extends BaseAdapter { private List<Music> mDatas; private Context mContext; public MusicAdapter(List<Music> mDatas, Context mContext) { this.mDatas = mDatas; this.mContext = mContext; } @Override public int getCount() { return mDatas.size(); } @Override public Music getItem(int position) { return mDatas.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { convertView = View.inflate(mContext, R.layout.list_item_music, null); new ViewHolder(convertView); } ViewHolder holder = (ViewHolder) convertView.getTag(); Music music = mDatas.get(position); holder.textTitle.setText(music.title); holder.textDesc.setText(music.desc); return convertView; } class ViewHolder { TextView textTitle; TextView textDesc; public ViewHolder(View view) { textTitle = (TextView) view.findViewById(R.id.textTitle); textDesc = (TextView) view.findViewById(R.id.textDesc); view.setTag(this); } } }
4. 为SwipeMenuListView实现Adapter,并在之后,创建滑动菜单:
public class MainActivity extends AppCompatActivity { @ViewInject(R.id.listViewMusic) private SwipeMenuListView listViewMusic; @ViewInject(R.id.swipeRefreshMusic) private SwipeRefreshLayout swipeRefreshMusic; private List<Music> musics; private MusicAdapter musicAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); x.view().inject(this); musics = new ArrayList<>(); for (int i = 0; i < 4; i++) { Music music = new Music(); music.title = "上邪 : " + i; music.desc = "我欲与君相知,长命无绝衰"; musics.add(music); } musicAdapter = new MusicAdapter(musics, this); listViewMusic.setAdapter(musicAdapter); SwipeMenuCreator swipeMenuCreator = new SwipeMenuCreator() { @Override public void create(SwipeMenu menu) { // create "edit" item SwipeMenuItem editItem = new SwipeMenuItem( getApplicationContext()); // set item background editItem.setBackground(new ColorDrawable(Color.rgb(0xC9, 0xC9, 0xCE))); // set item width editItem.setWidth(dp2px(90)); // set item title editItem.setTitle("编辑"); // set item title fontsize editItem.setTitleSize(18); // set item title font color editItem.setTitleColor(Color.WHITE); // add to menu menu.addMenuItem(editItem); // create "edit" item SwipeMenuItem deleteItem = new SwipeMenuItem( getApplicationContext()); // set item background deleteItem.setBackground(new ColorDrawable(Color.parseColor("#ff0000"))); // set item width deleteItem.setWidth(dp2px(90)); // set item title deleteItem.setTitle("删除"); // set item title fontsize deleteItem.setTitleSize(18); // set item title font color deleteItem.setTitleColor(Color.WHITE); // add to menu menu.addMenuItem(deleteItem); } }; listViewMusic.setMenuCreator(swipeMenuCreator); listViewMusic.setOnMenuItemClickListener(new SwipeMenuListView.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(int position, SwipeMenu menu, int index) { switch (index) {// index即是操作menu添加的顺序 case 0: Toast.makeText(MainActivity.this, "编辑 : " + position, Toast.LENGTH_SHORT).show(); break; case 1: Toast.makeText(MainActivity.this, "删除 : " + position, Toast.LENGTH_SHORT).show(); musics.remove(position); musicAdapter.notifyDataSetChanged(); break; } return false; } }); swipeRefreshMusic.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { @Override public void onRefresh() { swipeRefreshMusic.setRefreshing(true); new Handler().postDelayed(new Runnable() { @Override public void run() { for (int i = 0; i < 4; i++) { Music music = new Music(); music.title = "无缘 : " + i; music.desc = "风雨千山玉独行,天下倾心叹无缘"; musics.add(music); } musicAdapter.notifyDataSetChanged(); swipeRefreshMusic.setRefreshing(false); } }, 2000); } }); } private int dp2px(int dp) { return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, getResources().getDisplayMetrics()); } }
注:
1. SwipeMenuCreator是为了给该listitem创建菜单使用,需要实现该的接口中的create方法,在该方法中,可以自由创建菜单项,比如删除、编辑,可以设置菜单的背景颜色,字体颜色大小等;
2. 在创建SwipeMenuCreator实例后,需为列表设置菜单:listViewMusic.setMenuCreator(swipeMenuCreator);
3. 通过设置SwipeMenuListView的setOnMenuItemClickListener方法,监听菜单的点击事件,通过onMenuItemClick(int position, SwipeMenu menu, int index)方法,对菜单事件进行处理;
4. 通过设置SwipeMenuListView的setOnRefreshListener方法,为菜单添加下拉刷新功能!
如此这般,便可完美的实现的list item滑动编辑删除功能啦,希望大家喜欢。