读取launcher数据库数据

import java.util.List;

import android.content.ContentResolver;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ProviderInfo;
import android.database.Cursor;
import android.net.Uri;
import android.util.Log;

public class LauncherUtils {

	public static void readLauncherDB(Context context) {
		final ContentResolver cr = context.getContentResolver();
		String AUTHORITY = getAuthorityFromPermission(context,
				"com.android.launcher.permission.READ_SETTINGS");
		if (AUTHORITY == null) {
			AUTHORITY = getAuthorityFromPermission(context,
					"com.android.launcher.permission.WRITE_SETTINGS");
		}
		if (AUTHORITY == null) {
			Log.e("", "no authority");
			return;
		}
		Log.e("", "authority:" + AUTHORITY);

		Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY
				+ "/favorites?notify=true");

		Cursor c = cr.query(CONTENT_URI, null, null, null, null);
		if (c != null) {
			while (c.moveToNext()) {
				int id = c.getInt(c.getColumnIndex("_id"));
				// 快捷方式的名称
				String title = c.getString(c.getColumnIndex("title"));
				// 快捷方式启动的对象
				String intent = c.getString(c.getColumnIndex("intent"));
				int container = c.getInt(c.getColumnIndex("container"));
				// 快捷方式在哪个屏幕,默认是1
				int screen = c.getInt(c.getColumnIndex("screen"));
				// 快捷方式的位置
				int cellX = c.getInt(c.getColumnIndex("cellX"));
				int cellY = c.getInt(c.getColumnIndex("cellY"));
				int spanX = c.getInt(c.getColumnIndex("spanX"));
				int spanY = c.getInt(c.getColumnIndex("spanY"));
				int itemType = c.getInt(c.getColumnIndex("itemType"));
				int appWidgetId = c.getInt(c.getColumnIndex("appWidgetId"));
				int isShortcut = c.getInt(c.getColumnIndex("isShortcut"));
				int iconType = c.getInt(c.getColumnIndex("iconType"));
				// 快捷方式的图标
				String iconPackage = c.getString(c
						.getColumnIndex("iconPackage"));
				// "iconResource"
				// "icon"
				// "uri"
				// "displayMode"
				int launchCount = c.getInt(c.getColumnIndex("launchCount"));
				// "sortMode"
				int itemFlags = c.getInt(c.getColumnIndex("itemFlags"));
				String log = "id=" + id + "|title=" + title + "|intent="
						+ intent + "|container=" + container + "|screen="
						+ screen + "|cell=[" + cellX + "," + cellY + "]|"
						+ "span=[" + spanX + "," + spanY + "]|itemType="
						+ itemType + "|appWidgetId=" + appWidgetId
						+ "|isShortcut=" + isShortcut + "|iconType=" + iconType
						+ "|iconPackage=" + iconPackage + "|launchCount="
						+ launchCount + "|itemFlags=" + itemFlags;
				Log.e("", log);
			}

		}
	}

	/**
	 * 获取authority
	 * @param context
	 * @param permission
	 * @return
	 */
	static String getAuthorityFromPermission(Context context, String permission) {
		if (permission == null)
			return null;
		List<PackageInfo> packs = context.getPackageManager()
				.getInstalledPackages(PackageManager.GET_PROVIDERS);
		if (packs != null) {
			for (PackageInfo pack : packs) {
				ProviderInfo[] providers = pack.providers;
				if (providers != null) {
					for (ProviderInfo provider : providers) {
						if (permission.equals(provider.readPermission))
							return provider.authority;
						if (permission.equals(provider.writePermission))
							return provider.authority;
					}
				}
			}
		}
		return null;
	}

}