android从一个应用跳转到另一个应用

//获取launcher中的应用列表

Intent intent = new Intent();
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
List<ResolveInfo> lists = getPackageManager().queryIntentActivities(intent, 0);

//获取launcher中应用列表的名称和图标

ResolveInfo  info = lists.get(0);

info.loadIcon(getPackageManager());
info.loadLabel(getPackageManager());

//从当前应用跳转到另一个应用中

Intent intent = getPackageManager().getLaunchIntentForPackage(info.activityInfo.packageName);

startActivity(intent);