Android UI——popuwindow实例

PopupWindow在android.widget包下，弹出窗口的形式展示。官方文档对该控件的描述是：“一个弹出窗口控件，可以用来显示任意视图(View)，而且会浮动在当前活动(activity)的顶部”。PopupWindow可以让我们实现多种自定义控件，例如：menu、alertdialog等弹窗似的View。

实现中使用的 PopupWindow。这里做了简单封装，其中有三个类组成：PopuItem、PopuJar、PopupWindows。
1. public class PopuItem {
2.     private Drawable icon;
3.     private Bitmap thumb;
4.     private String title;
5.     private int actionId = -1;
6.     private boolean selected;
7.     private boolean sticky;
8.
9.     /**
10.      * Constructor
11.      *
12.      * @param actionId Action id for case statements
13.      * @param title     Title
14.      * @param icon      Icon to use
15.      */
16.     public PopuItem(int actionId, String title, Drawable icon) {
17.         this.title = title;
18.         this.icon = icon;
19.         this.actionId = actionId;
20.     }
21.
22.     /**
23.      * Constructor
24.      */
25.     public PopuItem() {
26.         this(-1, null, null);
27.     }
28.
29.     /**
30.      * Constructor
31.      *
32.      * @param actionId Action id of the item
33.      * @param title     Text to show for the item
34.      */
35.     public PopuItem(int actionId, String title) {
36.         this(actionId, title, null);
37.     }
38.
39.     /**
40.      * Constructor
41.      *
42.      * @param icon {@link Drawable} action icon
43.      */
44.     public PopuItem(Drawable icon) {
45.         this(-1, null, icon);
46.     }
47.
48.     /**
49.      * Constructor
50.      *
51.      * @param actionId Action ID of item
52.      * @param icon      {@link Drawable} action icon
53.      */
54.     public PopuItem(int actionId, Drawable icon) {
55.         this(actionId, null, icon);
56.     }
57.
58.     /**
59.      * Set action title
60.      *
61.      * @param title action title
62.      */
63.     public void setTitle(String title) {
64.         this.title = title;
65.     }
66.
67.     /**
68.      * Get action title
69.      *
70.      * @return action title
71.      */
72.     public String getTitle() {
73.         return this.title;
74.     }
75.
76.     /**
77.      * Set action icon
78.      *
79.      * @param icon {@link Drawable} action icon
80.      */
81.     public void setIcon(Drawable icon) {
82.         this.icon = icon;
83.     }
84.
85.     /**
86.      * Get action icon
87.      * @return {@link Drawable} action icon
88.      */
89.     public Drawable getIcon() {
90.         return this.icon;
91.     }
92.
93.      /**
94.      * Set action id
95.      *
96.      * @param actionId Action id for this action
97.      */
98.     public void setActionId(int actionId) {
99.         this.actionId = actionId;
100.     }
101.
102.     /**
103.      * @return Our action id
104.      */
105.     public int getActionId() {
106.         return actionId;
107.     }
108.
109.     /**
110.      * Set sticky status of button
111.      *
112.      * @param sticky true for sticky, pop up sends event but does not disappear
113.      */
114.     public void setSticky(boolean sticky) {
115.         this.sticky = sticky;
116.     }
117. &nb

补充：移动开发 , Android ,