判断App是否安装

    /*prize added by zhongliming 20230616 incase app uninstalled by user start */
    /*
     * when app was disabled or uninstalled it will return false
     */
    private boolean isAppInstalled(String pkg){
        LauncherApps mLauncherApps = (LauncherApps)getSystemService(Context.LAUNCHER_APPS_SERVICE);
        List<LauncherActivityInfo> labs = mLauncherApps.getActivityList(null, UserHandle.getUserHandleForUid(-1));
        for (LauncherActivityInfo info : labs) {
            ApplicationInfo app = info.getApplicationInfo();
            //Log.i(TAG,"disableAllDefaultIceapp app.packageName=" + app.packageName);
            if(pkg.equals(app.packageName)){
                return true;
            }
        }
        Log.e(TAG, pkg + " not found or disabled");
        return false;
    }
    /*prize added by zhongliming 20230616 incase app uninstalled by user end*/