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Android仿微信滑动弹出编辑、删除菜单效果、增加下拉刷新功能

2020-04-11 11:01:30
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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!

本文已被整理到了《Android微信开发教程汇总》,欢迎大家学习阅读。

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。

更多关于滑动功能的文章,请点击专题: 《Android滑动功能》

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持武林网。

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