volume

EC2 Can't resize volume after increasing size

由 馋奶兔 提交于 2019-11-26 17:53:29
问题 I have followed the steps for resizing an EC2 volume Stopped the instance Took a snapshot of the current volume Created a new volume out of the previous snapshot with a bigger size in the same region Deattached the old volume from the instance Attached the new volume to the instance at the same mount point Old volume was 5GB and the one I created is 100GB Now, when i restart the instance and run df -h I still see this Filesystem Size Used Avail Use% Mounted on /dev/xvde1 4.7G 3.5G 1021M 78% /

get current system volume level on iPhone

由 ぐ巨炮叔叔 提交于 2019-11-26 17:51:06
问题 Is there a way I can get the current system volume level on the iPhone? I'm thinking maybe there's a way to make an MPVolumeView and get the value from that. 回答1: musicPlayer = [[MPMusicPlayerController iPodMusicPlayer]; currentVolume = musicPlayer.volume; This is now deprecated as of iOS8.0 so try the following #import <AVFoundation/AVAudioSession.h> AVAudioSession *audioSession = [AVAudioSession sharedInstance]; CGFloat volume = audioSession.outputVolume; 回答2: Celestial.framework has an

Cleanest way of capturing volume up/down button press on iOS 8

由 回眸只為那壹抹淺笑 提交于 2019-11-26 17:44:25
What's the best/cleanest way of capturing volume up/down button presses on iOS 8 ? Ideally I'd like to capture the keypress and also prevent the system volume from changing (or at the very least, prevent the volume change HUD from showing). There are some old answers going around which use deprecated methods and don't seem to work at all on iOS 8. This iOS 8 specific one didn't work either. This RBVolumeButtons open source class doesn't seem to work on iOS 8 either. For Swift you can use next code in your viewController class: let volumeView = MPVolumeView(frame: CGRectMake(-CGFloat.max, 0.0,

Android BroadCastReceiver for volume key up and down

由 你说的曾经没有我的故事 提交于 2019-11-26 17:33:21
问题 If a user presses volume key up or down is it possible to detect it in my broadcast receiver? I need the full code. Here is my Intent filter IntentFilter filter = new IntentFilter(); filter.addAction("android.media.VOLUME_CHANGED_ACTION"); and my onReceive method is public void onReceive(Context arg0, Intent intent) { KeyEvent ke = (KeyEvent)intent.getExtras().get(Intent.EXTRA_KEY_EVENT); if (ke .getKeyCode() == KeyEvent.KEYCODE_VOLUME_UP) { System.out.println("I got volume up event"); }else

运算符重载

由 主宰稳场 提交于 2019-11-26 17:11:41
#include <iostream> using namespace std; class Distance { private: int feet; // 0 到无穷 int inches; // 0 到 12 public: // 所需的构造函数 Distance(){ feet = 0; inches = 0; } Distance(int f, int i){ feet = f; inches = i; } // 显示距离的方法 void displayDistance() { cout << "F: " << feet << " I:" << inches <<endl; } // 重载负运算符（ - ） Distance operator- () { feet = -feet; inches = -inches; return Distance(feet, inches); } // 重载小于运算符（ < ） bool operator <(const Distance& d) { if(feet < d.feet) { cout<<d.feet<<endl; return true; } if(feet == d.feet && inches < d.inches) { return true; } cout<<d.feet<<" "<<d.inches<<endl

docker镜像制作

由 南笙酒味 提交于 2019-11-26 17:07:11
1.端口映射 一：容器端口随机映射到物理机的一个端口-P 二：容器的端口映射到物理机的一个特定的端口 -p 80:80 三：容器的端口映射到物理机的一个特定的网卡上的随机端口 -p ip：：80 四：容器的端口映射到物理机的一个特定的网卡上的特定端口 -p ip:80：80 2.数据卷—实现数据的持久化 一：bind mount volume -v /ken:/var/www/html 二：docker managerment volume -v /var/www/html 三：基于一个现有的容器 –volumes-from docker使用数据库实现数据持久化演示 第一步：搜索数据库镜像并下载相应的数据库镜像 [root@localhost ~]# docker search mysql 第二步：启动数据库 [root@localhost ~]# docker run -d -v /ken:/var/lib/mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=123 --name mysql1 mysql -e 指定设置环境变量。MYSQL_ROOT_PASSWORD指定数据库登录的初始密码 第三步：访问数据库 [root@localhost ~]# docker run -it mysql mysql -uroot -p123 -h172.17

Volume change listener?

由 自闭症网瘾萝莉.ら 提交于 2019-11-26 16:44:19
问题 Is there any way to listen for volume changes with an Android service and react to that? Btw: How does the Google music app allow the user to control the media volume even when the music is playing in the background? 回答1: Check out registerMediaButtonEventReceiver(ComponentName broadcastReceiver); Define a BroadcastReceiver that handles ACTION_MEDIA_BUTTON . The recieved intent includes a single extra field, EXTRA_KEY_EVENT , containing the key event that caused the broadcast. You can use

How to turn the volume to max programmatically on android? [duplicate]

由 試著忘記壹切 提交于 2019-11-26 16:12:52
问题 This question already has an answer here: How to control volume in android? 1 answer I am writing an app for android that turns up the volume and plays a song for 45 seconds and then stops. That works great, however I can only get the volume to turn up to 50%, Is there a way to turn the volume up to 100% using setVolume()? This is my code: final MediaPlayer mp = MediaPlayer.create(context, R.raw.sound_file_1); //plays eye of the tiger for 45 seconds if (messages.contains("MUSIC ONLY")){ /

Detect iPhone Volume Button Up Press?

由 本小妞迷上赌 提交于 2019-11-26 16:08:52
问题 Is there a notification that I can listen to that will tell me when an iPhone's volume is turned up ? I know about the AVSystemController_SystemVolumeDidChangeNotification , but it is essential that the notification only be triggered when the volume has been turned up, not up or down. Secondly, how can I hide the translucent view that appears when the volume up button is pressed, showing the system's volume? Camera+ has implemented this. 回答1: There is no documented way to to this, but you can

iOS 7: MPMusicPlayerController volume deprecated. How to change device volume now?

由 你离开我真会死。 提交于 2019-11-26 15:54:08
MPMusicPlayerController setVolume is deprecated since iOS 7 Is there any other way to change system music volume? Preferably without user interaction. Its important feature: to increase volume automatically for any alarm clock from AppStore. To answer you question exactly: Yes there is other way to change system volume without user interaction. Until recent times I used to think that changing volume using MPVolumeView programmatically is possible only using private API . But I have just verified, that changing the value of volumeSlider and faking slider's touchUP event works: MPVolumeView*
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