mysql怎么设定explicit_defaults_for_timestamp=1
执行一下SQL语句时显示
SET GLOBAL explicit_defaults_for_timestamp = 1;
>> ERROR 1227 (42000): Access denied; you need (at least one of) the SUPER privilege(s) for this operation
打开设置为最大音量的应用程序。
NotificationManager n = (NotificationManager) getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE);
if(n.isNotificationPolicyAccessGranted()) {
AudioManager mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
int m