managedQuery() will use ContentResolver's query(). The difference is that with managedQuery() the activity will keep a reference to your Cursor and close it whenever needed (in onDestroy() for instanc

之前运行eclipse执行android应用都没问题，今天突然出问题了，控制台报错：The connection to adb is down, and a severe error has occured.You must restart adb and Eclipse.Please ensure that adb is correctly located at 'D:\an...