Github上的Android项目介绍之ListViewAnimation（针对listView item的侧滑菜单）（1）

demo源码，需要可以下载

1.这是一个github开源项目，先去github上面下载，github下载地址。

2.将SwipeMenuListView项目，导入，然后新建项目如果要引用，要设置为相应的lid应用，如图勾选。

3.activity_main.xml 的布局文件代码：

<com.baoyz.swipemenulistview.SwipeMenuListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />  

主要是加入这个控件。

4.item_list_app.xml布局文件，代码如下：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:padding="8dp" >  

    <ImageView
        android:id="@+id/iv_icon"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:src="@drawable/ic_launcher" />  

    <TextView
        android:id="@+id/tv_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_marginLeft="10dp"
        android:layout_toRightOf="@+id/iv_icon"
        android:text="name"
        android:textColor="@android:color/black"
        android:textSize="18sp" />  

</RelativeLayout>  

5.加入ic_delete.png图片。

6.定义扩展自BaseAdapter的adapter，用来提供列表数据。

同时重写swipeMenu的回调方法，主要是实现SwipeMenuCreator 这个类的create（）方法，和相应的OnMenuItemClickListener接口。至于数据来源则是List类型的，是由 getPackageManager().getInstalledApplications(0); 方法获得。

如果要重用这个代码，需要实现SwipeMenuCreator 类和相应的OnMenuItemClickListener接口。

主要代码如下：

public class MainActivity extends Activity {  

    private List<ApplicationInfo> mAppList;
    private AppAdapter mAdapter;
    private SwipeMenuListView mListView;  

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

        mAppList = getPackageManager().getInstalledApplications(0);  

        mListView = (SwipeMenuListView) findViewById(R.id.listView);
        mAdapter = new AppAdapter();
        mListView.setAdapter(mAdapter);  

        SwipeMenuCreator creator = new SwipeMenuCreator() {  

            @Override
            public void create(SwipeMenu menu) {
                // create "open" item
                SwipeMenuItem openItem = new SwipeMenuItem(
                        getApplicationContext());
                // set item background
                openItem.setBackground(new ColorDrawable(Color.rgb(0xC9, 0xC9,
                        0xCE)));
                // set item width
                openItem.setWidth(dp2px(90));
                // set item title
                openItem.setTitle("Open");
                // set item title fontsize
                openItem.setTitleSize(18);
                // set item title font color
                openItem.setTitleColor(Color.WHITE);
                // add to menu
                menu.addMenuItem(openItem);  

                // create "delete" item
                SwipeMenuItem deleteItem = new SwipeMenuItem(
                        getApplicationContext());
                // set item background
                deleteItem.setBackground(new ColorDrawable(Color.rgb(0xF9,
                        0x3F, 0x25)));
                // set item width
                deleteItem.setWidth(dp2px(90));
                // set a icon
                deleteItem.setIcon(R.drawable.ic_delete);
                // add to menu
                menu.addMenuItem(deleteItem);
            }
        };  

        // set creator
        mListView.setMenuCreator(creator);  

        mListView.setOnMenuItemClickListener(new OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(int position, SwipeMenu menu, int index) {
                switch (index) {
                case 0:
                    // open
                    Toast.makeText(getApplicationContext(), "Open", Toast.LENGTH_SHORT).show();
                    break;
                case 1:
                    // delete
                    Toast.makeText(getApplicationContext(), "Delete", Toast.LENGTH_SHORT).show();
//                  mAppList.remove(position);
//                  mAdapter.notifyDataSetChanged();
                    break;
                }
                // false : close the menu; true : not close the menu
                return false;
            }
        });  

    }
    class AppAdapter extends BaseAdapter {  

        @Override
        public int getCount() {
            return mAppList.size();
        }  

        @Override
        public ApplicationInfo getItem(int position) {
            return mAppList.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(getApplicationContext(),
                        R.layout.item_list_app, null);
                new ViewHolder(convertView);
            }
            ViewHolder holder = (ViewHolder) convertView.getTag();
            ApplicationInfo item = getItem(position);
            holder.iv_icon.setImageDrawable(item.loadIcon(getPackageManager()));
            holder.tv_name.setText(item.loadLabel(getPackageManager()));
            return convertView;
        }  

        class ViewHolder {
            ImageView iv_icon;
            TextView tv_name;  

            public ViewHolder(View view) {
                iv_icon = (ImageView) view.findViewById(R.id.iv_icon);
                tv_name = (TextView) view.findViewById(R.id.tv_name);
                view.setTag(this);
            }
        }
    }  

    private int dp2px(int dp) {
        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp,
                getResources().getDisplayMetrics());
    }
}  

。