读取launcher数据库数据

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1. import java.util.List;  

2.   

3. import android.content.ContentResolver;  

4. import android.content.Context;  

5. import android.content.pm.PackageInfo;  

6. import android.content.pm.PackageManager;  

7. import android.content.pm.ProviderInfo;  

8. import android.database.Cursor;  

9. import android.net.Uri;  

10. import android.util.Log;  

11.   

12. public class LauncherUtils {  

13.   

14.     public static void readLauncherDB(Context context) {  

15.         final ContentResolver cr = context.getContentResolver();  

16.         String AUTHORITY = getAuthorityFromPermission(context,  

17.                 "com.android.launcher.permission.READ_SETTINGS");  

18.         if (AUTHORITY == null) {  

19.             AUTHORITY = getAuthorityFromPermission(context,  

20.                     "com.android.launcher.permission.WRITE_SETTINGS");  

21.         }  

22.         if (AUTHORITY == null) {  

23.             Log.e("", "no authority");  

24.             return;  

25.         }  

26.         Log.e("", "authority:" + AUTHORITY);  

27.   

28.         Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY  

29.                 + "/favorites?notify=true");  

30.   

31.         Cursor c = cr.query(CONTENT_URI, null, null, null, null);  

32.         if (c != null) {  

33.             while (c.moveToNext()) {  

34.                 int id = c.getInt(c.getColumnIndex("_id"));  

35.                 // 快捷方式的名称  

36.                 String title = c.getString(c.getColumnIndex("title"));  

37.                 // 快捷方式启动的对象  

38.                 String intent = c.getString(c.getColumnIndex("intent"));  

39.                 int container = c.getInt(c.getColumnIndex("container"));  

40.                 // 快捷方式在哪个屏幕,默认是1  

41.                 int screen = c.getInt(c.getColumnIndex("screen"));  

42.                 // 快捷方式的位置  

43.                 int cellX = c.getInt(c.getColumnIndex("cellX"));  

44.                 int cellY = c.getInt(c.getColumnIndex("cellY"));  

45.                 int spanX = c.getInt(c.getColumnIndex("spanX"));  

46.                 int spanY = c.getInt(c.getColumnIndex("spanY"));  

47.                 int itemType = c.getInt(c.getColumnIndex("itemType"));  

48.                 int appWidgetId = c.getInt(c.getColumnIndex("appWidgetId"));  

49.                 int isShortcut = c.getInt(c.getColumnIndex("isShortcut"));  

50.                 int iconType = c.getInt(c.getColumnIndex("iconType"));  

51.                 // 快捷方式的图标  

52.                 String iconPackage = c.getString(c  

53.                         .getColumnIndex("iconPackage"));  

54.                 // "iconResource"  

55.                 // "icon"  

56.                 // "uri"  

57.                 // "displayMode"  

58.                 int launchCount = c.getInt(c.getColumnIndex("launchCount"));  

59.                 // "sortMode"  

60.                 int itemFlags = c.getInt(c.getColumnIndex("itemFlags"));  

61.                 String log = "id=" + id + "|title=" + title + "|intent="  

62.                         + intent + "|container=" + container + "|screen="  

63.                         + screen + "|cell=[" + cellX + "," + cellY + "]|"  

64.                         + "span=[" + spanX + "," + spanY + "]|itemType="  

65.                         + itemType + "|appWidgetId=" + appWidgetId  

66.                         + "|isShortcut=" + isShortcut + "|iconType=" + iconType  

67.                         + "|iconPackage=" + iconPackage + "|launchCount="  

68.                         + launchCount + "|itemFlags=" + itemFlags;  

69.                 Log.e("", log);  

70.             }  

71.   

72.         }  

73.     }  

74.   

75.     /** 

76.      * 获取authority 

77.      * @param context 

78.      * @param permission 

79.      * @return  

80.      */  

81.     static String getAuthorityFromPermission(Context context, String permission) {  

82.         if (permission == null)  

83.             return null;  

84.         List<PackageInfo> packs = context.getPackageManager()  

85.                 .getInstalledPackages(PackageManager.GET_PROVIDERS);  

86.         if (packs != null) {  

87.             for (PackageInfo pack : packs) {  

88.                 ProviderInfo[] providers = pack.providers;  

89.                 if (providers != null) {  

90.                     for (ProviderInfo provider : providers) {  

91.                         if (permission.equals(provider.readPermission))  

92.                             return provider.authority;  

93.                         if (permission.equals(provider.writePermission))  

94.                             return provider.authority;  

95.                     }  

96.                 }  

97.             }  

98.         }  

99.         return null;  

100.     }  

101.   

102. }