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：
|
1
2
3
4
5
6
7
8
9
10
11
|
<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：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
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：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
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*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。
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服务器之家。