Android 實現uc浏覽器一樣的菜單

使用AlertDialog生成菜單，利用setView()方法設置菜單視圖。

布局如下：

1、菜單布局

利用GridView

1. <?xml version="1.0" encoding="utf-8"?>
2. <LinearLayout xmlns:Android="http://schemas.android.com/apk/res/android"
3. android:layout_width="wrap_content" android:layout_height="wrap_content"
4. android:orientation="vertical">
5. <GridView android:id="@+id/menu"
6. android:layout_width="fill_parent"
7. android:layout_height="fill_parent"
8. android:numColumns="2"
9. android:verticalSpacing="5dip"
10. android:horizontalSpacing="5dip"
11. android:stretchMode="columnWidth"
12. android:gravity="center"></GridView>
13. </LinearLayout>

1. <?xml version="1.0" encoding="utf-8"?>
2. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
3. android:id="@+id/RelativeLayout_Item" android:layout_width="wrap_content"
4. android:layout_height="wrap_content" android:paddingBottom="5dip">
5. <ImageView android:id="@+id/item_image"
6. android:layout_centerHorizontal="true" android:layout_width="wrap_content"
7. android:layout_height="wrap_content"></ImageView>
8. <TextView android:layout_below="@id/item_image" android:id="@+id/item_text"
9. android:layout_centerHorizontal="true" android:layout_width="wrap_content"
10. android:layout_height="wrap_content" android:text="選項"></TextView>
11. </RelativeLayout>

代碼比較簡單，注釋非常詳細

1. package com.cloay.down.utils;
3. import java.util.ArrayList;
4. import java.util.HashMap;
6. import com.cloay.down.R;
8. import android.app.AlertDialog;
9. import android.content.Context;
10. import android.view.View;
11. import android.widget.AdapterView;
12. import android.widget.AdapterView.OnItemClickListener;
13. import android.widget.GridView;
14. import android.widget.SimpleAdapter;
15. /**
16. * 菜單工具類
17. * MenuUtil.java
18. * @author cloay
19. * 2011-10-25
20. */
21. public class MenuUtil {
22. private static AlertDialog menuDialog;// menu菜單Dialog
23. private static GridView menuGrid;
25. /** 菜單圖片 **/
26. static int[] menu_image_array = { R.drawable.menu_open_in_background, R.drawable.menu_redownload, R.drawable.menu_detail, R.drawable.menu_delete };
27. /** 菜單文字 **/
28. static String[] menu_name_array = { "打開", "重新下載", "詳細", "刪除"};
29. public static void ShowMenuDialog(final Context context){
30. View menuView = View.inflate(context, R.layout.menu, null);
31. menuDialog = new AlertDialog.Builder(context)
32. .setView(menuView)
33. .create();
34. menuDialog.show();
35. menuGrid = (GridView) menuView.findViewById(R.id.menu);
36. menuGrid.setAdapter(getMenuAdapter(context, menu_name_array, menu_image_array));
37. menuGrid.setOnItemClickListener(new OnItemClickListener() {
38. //監聽menu按鈕事件
39. @Override
40. public void onItemClick(AdapterView<?> parent, View view,
41. int position, long id) {
42. switch(position){
43. case 0: //open file
45. break;
46. case 1: //redownload 重新下載
48. break;
49. case 2: //file details
51. break;
52. case 3: //delete file
54. break;
55. }
56. }
57. });
58. }
60. /**
61. * 為menuGrid設置Adapter
62. * @param context
63. * @param menuNameArray
64. * @param imageResourceArray
65. * @return
66. */
67. private static SimpleAdapter getMenuAdapter(Context context, String[] menuNameArray,
68. int[] imageResourceArray) {
69. ArrayList<HashMap<String, Object>> data = new ArrayList<HashMap<String, Object>>();
70. for (int i = 0; i < menuNameArray.length; i++) {
71. HashMap<String, Object> map = new HashMap<String, Object>();
72. map.put("itemImage", imageResourceArray[i]);
73. map.put("itemText", menuNameArray[i]);
74. data.add(map);
75. }
76. SimpleAdapter simperAdapter = new SimpleAdapter(context, data,
77. R.layout.item_menu, new String[] { "itemImage", "itemText" },
78. new int[] { R.id.item_image, R.id.item_text });
79. return simperAdapter;
80. }
81. }