(8) Launcher3 customized ContentProvider content provider, which allows other applications to modify Database updates and perform other operations. launcher3

(8) Launcher3 customized ContentProvider content provider, which allows other applications to modify Database updates and perform other operations. launcher3

First, add two permissions.

<Uses-permission android: name = "com. android. launcher3.permission. READ_SETTINGS"/>
<Uses-permission android: name = "com. android. launcher3.permission. WRITE_SETTINGS"/>

These two are the permissions to modify the desktop database.

It cannot be modified without being added.

Get data directly through the content provider,

static ArrayList<ShortcutInfo> getItemsInLocalCoordinates(Context context) {        ArrayList<ShortcutInfo> items = new ArrayList<ShortcutInfo>();        final ContentResolver cr = context.getContentResolver();        Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, new String[] {                LauncherSettings.Favorites.ITEM_TYPE, LauncherSettings.Favorites.CONTAINER,                LauncherSettings.Favorites.SCREEN, LauncherSettings.Favorites.CELLX, LauncherSettings.Favorites.CELLY,                LauncherSettings.Favorites.SPANX, LauncherSettings.Favorites.SPANY ,LauncherSettings.Favorites.TITLE,LauncherSettings.Favorites.INTENT}, null, null, null);        final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE);        final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER);        final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN);        final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX);        final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY);        final int spanXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANX);        final int spanYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANY);        final int titleIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE);        final int intenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.INTENT);        try {            while (c.moveToNext()) {            ShortcutInfo item = new ShortcutInfo();                item.cellX = c.getInt(cellXIndex);                item.cellY = c.getInt(cellYIndex);                item.spanX = Math.max(1, c.getInt(spanXIndex));                item.spanY = Math.max(1, c.getInt(spanYIndex));                item.container = c.getInt(containerIndex);                item.itemType = c.getInt(itemTypeIndex);                item.screenId = c.getInt(screenIndex);                item.title=c.getString(titleIndex);                if(c.getString(intenIndex)!=null){                 item.intent=new Intent(c.getString(intenIndex));                }                               items.add(item);            }        } catch (Exception e) {            items.clear();        } finally {            c.close();        }        return items;    }

Similarly, you can modify the URL,

I will not write the code.