如何為不同的list item呈現不同的菜單，本文實例就為大家介紹了android仿微信或qq滑動彈出編輯、刪除菜單效果、增加下拉刷新等功能的實現，分享給大家供大家參考，具體內容如下
效果圖：
1. 下載開源項目，并將其中的liberary導入到自己的項目中：
2. 使用swipemenulistview代替listview，在頁面中布局：
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<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主要是為了給該列表增加下拉刷新功能！
3. 為該listview創建適配器，與正常的實現并無二致：
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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. 為swipemenulistview實現adapter，并在之后，創建滑動菜單：
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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 = "我欲與君相知，長命無絕衰"; 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("編輯"); // 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("刪除"); // 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添加的順序 case 0: toast.maketext(mainactivity.this, "編輯 : " + position, toast.length_short).show(); break; case 1: toast.maketext(mainactivity.this, "刪除 : " + 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 = "無緣 : " + i; music.desc = "風雨千山玉獨行，天下傾心嘆無緣"; 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是為了給該listitem創建菜單使用，需要實現該的接口中的create方法，在該方法中，可以自由創建菜單項，比如刪除、編輯，可以設置菜單的背景顏色，字體顏色大小等；
2. 在創建swipemenucreator實例后，需為列表設置菜單：listviewmusic.setmenucreator(swipemenucreator);
3. 通過設置swipemenulistview的setonmenuitemclicklistener方法，監聽菜單的點擊事件，通過onmenuitemclick(int position, swipemenu menu, int index)方法，對菜單事件進行處理；
4. 通過設置swipemenulistview的setonrefreshlistener方法，為菜單添加下拉刷新功能！
如此這般，便可完美的實現的list item滑動編輯刪除功能啦，希望大家喜歡。
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
