java Example
public static class MyLiveFolder extends Activity { public static final Uri CONTENT_URI = Uri.parse("content://my.app/live"); protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final Intent intent = getIntent(); final String action = intent.getAction(); if (LiveFolders.ACTION_CREATE_LIVE_FOLDER.equals(action)) { setResult(RESULT_OK, createLiveFolder(this, CONTENT_URI, "My LiveFolder", R.drawable.ic_launcher_contacts_phones)); } else { setResult(RESULT_CANCELED); } finish(); } private static Intent createLiveFolder(Context context, Uri uri, String name, int icon) { final Intent intent = new Intent(); intent.setData(uri); intent.putExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME, name); intent.putExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON, Intent.ShortcutIconResource.fromContext(context, icon)); intent.putExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE, LiveFolders.DISPLAY_MODE_LIST); return intent; } }
Component | Type | Description | Required |
---|---|---|---|
URI | URI | The ContentProvider URI | Yes |
LiveFolders.ExtraLiveFolderName | Extra String | The name of the live folder | Yes |
LiveFolders.ExtraLiveFolderIcon | Extra NoType:android/content/Intent$ShortcutIconResource;Href=../../../reference/android/content/Intent.ShortcutIconResource.html | The icon of the live folder | Yes |
LiveFolders.ExtraLiveFolderDisplayMode | Extra int | The display mode of the live folder. The value must be either LiveFolders.DISPLAY_MODE_GRID or LiveFolders.DISPLAY_MODE_LIST. | Yes |
LiveFolders.ExtraLiveFolderBaseIntent | Extra Intent | When the user clicks an item inside a live folder, the system will either fire the intent associated with that item or, if present, the live folder's base intent with the id of the item appended to the base intent's URI. | No |
Column | Type | Description | Required |
---|---|---|---|
LiveFolders.Name | String | The name of the item | Yes |
LiveFolders.Description | String | The description of the item. The description is ignored when the live folder's display mode is LiveFolders.DISPLAY_MODE_GRID. | No |
LiveFolders.Intent | Android.Content.Intent | The intent to fire when the item is clicked. Ignored when the live folder defines a base intent. | No |
LiveFolders.IconBitmap | Bitmap | The icon for the item. When this column value is not null, the values for the columns LiveFolders.IconPackage and LiveFolders.IconResource must be null. | No |
LiveFolders.IconPackage | String | The package of the item's icon. When this value is not null, the value for the column LiveFolders.IconResource must be specified and the value for the column LiveFolders.IconBitmap must be null. | No |
LiveFolders.IconResource | String | The resource name of the item's icon. When this value is not null, the value for the column LiveFolders.IconPackage must be specified and the value for the column LiveFolders.IconBitmap must be null. | No |
See Also: LiveFolders Members
java Example
public static class MyLiveFolder extends Activity { public static final Uri CONTENT_URI = Uri.parse("content://my.app/live"); protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final Intent intent = getIntent(); final String action = intent.getAction(); if (LiveFolders.ACTION_CREATE_LIVE_FOLDER.equals(action)) { setResult(RESULT_OK, createLiveFolder(this, CONTENT_URI, "My LiveFolder", R.drawable.ic_launcher_contacts_phones)); } else { setResult(RESULT_CANCELED); } finish(); } private static Intent createLiveFolder(Context context, Uri uri, String name, int icon) { final Intent intent = new Intent(); intent.setData(uri); intent.putExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME, name); intent.putExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON, Intent.ShortcutIconResource.fromContext(context, icon)); intent.putExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE, LiveFolders.DISPLAY_MODE_LIST); return intent; } }
Component | Type | Description | Required |
---|---|---|---|
URI | URI | The ContentProvider URI | Yes |
LiveFolders.ExtraLiveFolderName | Extra String | The name of the live folder | Yes |
LiveFolders.ExtraLiveFolderIcon | Extra NoType:android/content/Intent$ShortcutIconResource;Href=../../../reference/android/content/Intent.ShortcutIconResource.html | The icon of the live folder | Yes |
LiveFolders.ExtraLiveFolderDisplayMode | Extra int | The display mode of the live folder. The value must be either LiveFolders.DISPLAY_MODE_GRID or LiveFolders.DISPLAY_MODE_LIST. | Yes |
LiveFolders.ExtraLiveFolderBaseIntent | Extra Intent | When the user clicks an item inside a live folder, the system will either fire the intent associated with that item or, if present, the live folder's base intent with the id of the item appended to the base intent's URI. | No |
Column | Type | Description | Required |
---|---|---|---|
LiveFolders.Name | String | The name of the item | Yes |
LiveFolders.Description | String | The description of the item. The description is ignored when the live folder's display mode is LiveFolders.DISPLAY_MODE_GRID. | No |
LiveFolders.Intent | Android.Content.Intent | The intent to fire when the item is clicked. Ignored when the live folder defines a base intent. | No |
LiveFolders.IconBitmap | Bitmap | The icon for the item. When this column value is not null, the values for the columns LiveFolders.IconPackage and LiveFolders.IconResource must be null. | No |
LiveFolders.IconPackage | String | The package of the item's icon. When this value is not null, the value for the column LiveFolders.IconResource must be specified and the value for the column LiveFolders.IconBitmap must be null. | No |
LiveFolders.IconResource | String | The resource name of the item's icon. When this value is not null, the value for the column LiveFolders.IconPackage must be specified and the value for the column LiveFolders.IconBitmap must be null. | No |
A LiveFolder is a special folder whose content is provided by a Android.Content.ContentProvider. To create a live folder, two components are required:
When a user wants to create a live folder, the system looks for all activities with the intent filter action LiveFolders.ActionCreateLiveFolder and presents the list to the user. When the user chooses one of the activities, the activity is invoked with the LiveFolders.ActionCreateLiveFolder action. The activity then creates the live folder and passes it back to the system by setting it as an Android.App.Activity.SetResult(Android.App.Result, Android.Content.Intent). The live folder is described by a content provider URI, a name, an icon and a display mode. Finally, when the user opens the live folder, the system queries the content provider to retrieve the folder's content.
The following code sample shows how to write an activity that creates a live folder:
The live folder is described by an Android.Content.Intent as follows:
The live folder's content provider must, upon query, return a Android.Database.ICursor whose columns match the following names: