get_package_info

test.java

	@Override
		protected List<AppInfo> doInBackground(Void... params) {
			// TODO Auto-generated method stub
			List<AppInfo> list = new ArrayList<AppInfo>();
			// 获取系统所有的应用
			List<PackageInfo> appList = mContext.getPackageManager()
					.getInstalledPackages(PackageManager.GET_META_DATA);
			// 获取应用主activity
			for (PackageInfo p : appList) {
				// user app
				if (!((p.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) == 0))
					continue;
				AppInfo a = new AppInfo();
				a.appName = p.applicationInfo.loadLabel(
						mContext.getPackageManager()).toString();
				a.icon = p.applicationInfo.loadIcon(mContext
						.getPackageManager());
				a.packageName = p.applicationInfo.packageName;
				list.add(a);
			}
			AppLogger.d("the appList: " + list.size());
			return list;
		}
			public void LauncheApp(String packageName) {
		Intent intent = mContext.getPackageManager().getLaunchIntentForPackage(
				packageName);
		intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
				| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
				| Intent.FLAG_ACTIVITY_CLEAR_TOP);
		if (intent != null) {
			try {
				Toast t = Toast.makeText(mContext, "app  found",
						Toast.LENGTH_SHORT);
				t.show();
				startActivity(intent);
			} catch (ActivityNotFoundException e) {
				// TODO: handle exception
				Toast t = Toast.makeText(mContext, "app not found",
						Toast.LENGTH_SHORT);
				t.show();
			}
		}
	}