If neither app updates nor disk repair are helping, sometimes a good cache flush can get your Mac running just a bit more smoothly. To reset the NVRAM (or, on older Macs, PRAM), reboot the Mac and hold down the following keyboard command during startup for at least twenty seconds: Command-Option-P-R. At times, while installing updates, Mac may freeze. If that is the case, then run through these steps: Restart your Mac via the above process. If nothing happens, go to the App Store and click Updates. The installation process will pick up from where it left off. Also, check the progress by pressing the Command + L combo again.
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All-mighty Mac system monitor
Control CPU, memory, and whatnot with iStat Menus app.
When your Mac slows down or starts behaving erratically, chances are it's because an application that's running, perhaps in the background, is misbehaving. And if it's not an application that's causing the problem, it will almost certainly be a process associated with macOS or an ancillary service.
Solving this problem is usually as simple as killing the process, but in order to do that you need to identify which one.Here's a comprehensive guide on how to view and kill processes on your Mac.
- Until Apple rolls out more iOS apps for macOS, the second best thing you can do is simulate them. IPadian is the most popular software for doing this. It’s a great simulator that lets you run very close approximations of iOS apps and games on a Mac. The untrained eye might not even notice the difference, as the apps are so well-simulated.
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Best task killers for Mac
Try the best tools that help you find and kill processes hampering your Mac's performance.
How to show which processes consume a lot of memory
The easiest way to view all active processes running on your Mac is to launch Activity Monitor from your Applications folder. In the default CPU tab, you can see how much processing power every process takes, ranked by the most consuming. And if you switch to the Memory tab, you will see the same list ranked by the amount of used up RAM.
For more immediate and elaborate information on how your computer resources are consumed, use iStat Menus, which handily lives in your menu bar and, in its MEM table, shows you applications and processes that are consuming more than their fair share of RAM in real time.
How to kill process using Activity Monitor
- Launch Activity Monitor.
The easiest way to launch Activity Monitor is to press Command and spacebar to call up Spotlight, then start typing Activity Monitor. When it appears in Spotlight, hit Return to launch it. Alternatively, go to Utilities in the Applications folder and double-click on its icon. Or open Activity Monitor in one click through iStat Menus app. - View and filter tasks.
You'll notice there are five tabs across the top of the Activity Monitor window: CPU, Energy, Memory, Disk, and Network. Clicking on any of those tabs organizes processes according to the percentage of the resource they are using. So, clicking on CPU lists tasks in the order of how much CPU capacity they're using. By default, processes are ordered starting with the one that's consuming the most of the resource at the top, so you can quickly see where problems are occurring or likely to occur. To flip the order, so that processes consuming the least of the resource are at the top, click the arrow next to Memory or CPU above the list of processes. - Kill problematic processes.
When you identify a process that's causing a problem, either because it's hogging lots of CPU cycles or memory, or because it's highlighted in the Activity Monitor as having crashed, you need to kill it. To do that, click on the process first and then on the X in the Activity Monitor toolbar. The process will quit and free up the resources it was taking up. If it's a critical process, it will restart. If it's an application, it will remain shut down.
Activity Monitor alternatives
Get an advanced system monitor for macOS – an improved alternative to the default program.
How to shut down processes using Terminal
- Launch Terminal. Press Command and spacebar to pull up Spotlight then start typing Terminal. When the Terminal app appears in Spotlight, tap Return to launch it. Alternatively, navigate to the Utilities folder in Applications and double-click Terminal.
- View processes. When Terminal has launched, type 'top' into the Terminal window. You'll see a list of currently running processes. At the top of the list is an overview of the processes that are running and the resources they're consuming.
- Kill an unwanted process. When you identify a process that's causing a problem or consuming too many resources, take note of the number in the PID column next to the name of the process. To kill the process, type 'kill -9' followed by the PID number. Press Enter. The problem process will now quit.
How to prevent problematic processes
You can pretty much avoid issues altogether by being a little bit proactive in hunting down the common culprits. Here, iStat Menus will help you identify which applications or processes are consuming finite resources, such as CPU and RAM.
Then, you can use CleanMyMac maintenance routines that, when run regularly, will keep you Mac running smoothly. Here's how to do that:
- Launch Setapp and search for CleanMyMac.
- Find the maintenance scripts. Under the Speed section in the left sidebar, click on Maintenance. You will see a list of tasks that CleanMyMac would suggest you to perform to optimize your Mac. You should try to run them all, but the one especially important for us is under Run Maintenance Scripts.
- Run the maintenance scripts. Click on the checkbox next to Run Maintenance Scripts and then click Run. Alternatively, choose another specific maintenance script such as Speed Up Mail or Reindex Spotlight and click Run. When it's finished, click Select Tasks to return to the list of maintenance tasks.
Run other tasks, as necessary. If you're having problems with Mail, repeat step 3, but this time click the checkbox next to Speed Up Mail. Adobe flash cs6 serial key generator. Likewise, if Spotlight is running slowly, run the Reindex Spotlight task.
How to kill a background process
To kill a background process, use Activity Monitor. While the steps are the same as described in the 'How to kill a running process using Activity Monitor' section above, the key difference is that background processes often have obscure names that don't clearly describe what they do.
Be careful when killing a background process and, if not sure, leave it alone or search online for its exact role in your system. Otherwise, you might risk causes problems for your macOS. Generally, background processes don't tend to consume significant RAM or CPU cycles, so if you spot one that does, it has probably got into trouble. Kill it using the X in the Activity Monitor toolbar.
How to easily remove startup items
One common cause of Macs running slowly or having problems is items that launch automatically at startup. These could be helper apps for something like iTunes or just complete apps in their own right. They are also frequently apps you once used but no longer need.
To review the apps and helpers that startup when you log in
- Launch System Preferences from the Apple menu and click on the Users & Groups pane.
- Click the padlock and type in your password.
- Then select your username in the left panel and click the Login Items tab.
- Look through all the login items that correspond to apps you no longer use and then click the minus button. The app will no longer start up automatically when you log in.
How to Force Quit an application that's not responding
Best compact flash card reader for mac. If you see the dreaded spinning beachball, or an app just won't do anything, you should force quit it.
There are several ways to force quit an unresponsive application:
- Press Command-Alt-Esc and click on the application in the window that opens. Press Force Quit
- Control-click or right-click on the application's icon in the Dock and choose Force Quit
- Launch Activity Monitor, locate the application and press the 'x' in the toolbar
- Locate the process in Activity monitor, look for the entry in the PID column and launch Terminal. Type 'kill -9' followed by the PID number. Press Enter
Fix crashing apps with Spindump
While Force Quit will fix the problem, it’s a temporary solution. If you’re determined to identify the source of crashing apps and prevent them from happening, use Spindump on Mac. It’s a hang reporting tool that alerts you about the crash and helps share the details with the app developer.
Whenever the app crashes, it will trigger Spindump and send the information to Apple or the app developer. Not only does it help you understand what just happened, but it also helps the developer track the conditions of app misbehavior — and fix it accordingly. A win-win.
How to create a Spindump file on Mac
- Launch Activity Monitor via Applications > Utilities
- Pick the app for which you want to create a Spindump file, then click on the Settings icon
- Select Spindump or Run Spindump
- Wait a few seconds for the file to generate
- Click Save.
Reset a problematic app
There's one more thing you can try if an app keeps running slowly or crashing – reset it. Thanks to CleanMyMac, resetting an app is easy. Here's what you need to do:
- Locate the uninstaller. In the left hand sidebar of CleanMyMac, click on Uninstaller under Applications.
- Find the app that's causing a problem. Scroll through the list of apps until you find the one that's been crashing or running slowly. Click on it to highlight.
- Reset the app. With the app highlighted, you'll see all the files associated with it in the right-hand window. Click Application Reset at the top of the window and all the files, except the main application file, will be selected.
- Click Uninstall. All the selected files will be trashed, effectively resetting the application to its default state. When you launch it the next time, it will behave as if it has just been installed — so you'll need to recreate any custom settings or preferences.
If resetting the app doesn't work, the final resort should be to uninstall the app completely and reinstall it. To do that, click Complete Uninstallation in the same menu instead of Application Reset.
As you can see there are lots of different ways and apps that help you view and kill processes in macOS. iStat Menus is a great way to passively monitor which processes are causing problems, so you can launch Activity Monitor and quit them. And running CleanMyMac's maintenance scripts regularly prevents problems occurring in the first place. Best of all, all these apps are available to try for free on Setapp, along with over 200 high-quality macOS apps. So check your Mac for problematic processes now and see what you find.
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- Get the Flutter SDK
- iOS setup
- Android setup
System requirements
To install and run Flutter,your development environment must meet these minimum requirements:
- Operating Systems: macOS (64-bit)
- Disk Space: 2.8 GB (does not include disk space for IDE/tools).
- Tools: Flutter depends on these command-line tools being availablein your environment.
bash
curl
git
2.xmkdir
rm
unzip
which
Get the Flutter SDK
- Download the following installation bundle to get the lateststable release of the Flutter SDK:For other release channels, and older builds,see the SDK releases page.
- Extract the file in the desired location, for example:If you don’t want to install a fixed version of the installation bundle, you can skip steps 1 and 2. Instead, get the source code from the Flutter repoon GitHub with the following command:You can also change branches or tags as needed.For example, to get just the stable version:
- Add the
flutter
tool to your path:This command sets yourPATH
variable for thecurrent terminal window only.To permanently add Flutter to your path, seeUpdate your path. - Optionally, pre-download development binaries:The
flutter
tool downloads platform-specific development binaries asneeded. For scenarios where pre-downloading these artifacts is preferable(for example, in hermetic build environments,or with intermittent network availability), iOSand Android binaries can be downloaded ahead of time by running:For additional download options, seeflutter help precache
.
You are now ready to run Flutter commands!
Note: To update an existing version of Flutter, see Upgrading Flutter.
Run flutter doctor
Run the following command to see if there are any dependencies you need toinstall to complete the setup (for verbose output, add the
-v
flag):This command checks your environment and displays a report to the terminalwindow. The Dart SDK is bundled with Flutter; it is not necessary to installDart separately. Check the output carefully for other software you mightneed to install or further tasks to perform (shown in bold text).
For example:
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The following sections describe how to perform these tasks and finish the setupprocess.
Once you have installed any missing dependencies, run the
flutter doctor
command again to verify that you’ve set everything up correctly.Mac App Is Running And Immediately Finish Running Backs
Warning: The
flutter
tool uses Google Analytics to anonymously report feature usage statistics and basic crash reports. This data is used to help improve Flutter tools over time.Flutter tool analytics are not sent on the very first run. To disable reporting, type
flutter config --no-analytics
. To display the current setting, type flutter config
. If you opt out of analytics, an opt-out event is sent, and then no further information is sent by the Flutter tool.By downloading the Flutter SDK, you agree to the Google Terms of Service. Note: The Google Privacy Policy describes how data is handled in this service.
Moreover, Flutter includes the Dart SDK, which may send usage metrics and crash reports to Google.
Update your path
You can update your PATH variable for the current session atthe command line, as shown in Get the Flutter SDK.You’ll probably want to update this variable permanently,so you can run
flutter
commands in any terminal session.The steps for modifying this variable permanently forall terminal sessions are machine-specific.Typically you add a line to a file that is executedwhenever you open a new window. For example: Office mac student and teacher edition 2004 download.
- Determine the directory where you placed the Flutter SDK.You need this in Step 3.
- Open (or create) the
rc
file for your shell.Typingecho $SHELL
in your Terminal tells youwhich shell you’re using.If you’re using Bash,edit$HOME/.bash_profile
or$HOME/.bashrc
.If you’re using Z shell, edit$HOME/.zshrc
.If you’re using a different shell, the file pathand filename will be different on your machine. - Add the following line and change
[PATH_TO_FLUTTER_GIT_DIRECTORY]
to bethe path where you cloned Flutter’s git repo: - Run
source $HOME/.<rc file>
to refresh the current window,or open a new terminal window toautomatically source the file. - Verify that the
flutter/bin
directoryis now in your PATH by running:Verify that theflutter
command is available by running:
Note: As of Flutter’s 1.19.0 dev release, the Flutter SDK contains the
dart
command alongside the flutter
command so that you can more easily run Dart command-line programs. Downloading the Flutter SDK also downloads the compatible version of Dart, but if you’ve downloaded the Dart SDK separately, make sure that the Flutter version of dart
is first in your path, as the two versions might not be compatible. The following command (on macOS, linux, and chrome OS), tells you whether the flutter
and dart
commands originate from the same bin
directory and are therefore compatible. (Some versions of Windows support a similar where
command.)As shown above, the two commands don’t come from the same
bin
directory. Update your path to use commands from /path-to-flutter-sdk/bin
before commands from /usr/local/bin
(in this case). After updating your shell for the change to take effect, running the which
or where
command again should show that the flutter
and dart
commands now come from the same directory.Mac App Is Running And Immediately Finish Running Back In
To learn more about the
dart
command, run dart -h
from the command line, or see the dart tool page.Platform setup
macOS supports developing Flutter apps in iOS, Android,and the web (technical preview release).Complete at least one of the platform setup steps now,to be able to build and run your first Flutter app.
iOS setup
Install Xcode
To develop Flutter apps for iOS, you need a Mac with Xcode installed.
- Install the latest stable version of Xcode(using web download or the Mac App Store).
- Configure the Xcode command-line tools to use thenewly-installed version of Xcode byrunning the following from the command line:This is the correct path for most cases,when you want to use the latest version of Xcode.If you need to use a different version,specify that path instead.
- Make sure the Xcode license agreement is signed byeither opening Xcode once and confirming or running
sudo xcodebuild -license
from the command line.
Versions older than the latest stable version may still work,but are not recommended for Flutter development.Using old versions of Xcode to target bitcode is notsupported, and is likely not to work.
With Xcode, you’ll be able to run Flutter apps onan iOS device or on the simulator.
Set up the iOS simulator
To prepare to run and test your Flutter app on the iOS simulator,follow these steps:
- On your Mac, find the Simulator via Spotlight orby using the following command:
- Make sure your simulator is using a 64-bit device(iPhone 5s or later) by checking the settings inthe simulator’s Hardware > Device menu.
- Depending on your development machine’s screen size,simulated high-screen-density iOS devicesmight overflow your screen. Grab the corner of thesimulator and drag it to change the scale. You can alsouse the Window > Physical Size or Window > Pixel Accurateoptions if your computer’s resolution is high enough.
- If you are using a version of Xcode olderthan 9.1, you should instead set the device scalein the Window > Scale menu.
Create and run a simple Flutter app
To create your first Flutter app and test your setup,follow these steps:
- Create a new Flutter app by running the following from thecommand line:
- A
my_app
directory is created, containing Flutter’s starter app.Enter this directory: - To launch the app in the Simulator,ensure that the Simulator is running and enter:
Deploy to iOS devices
To deploy your Flutter app to a physical iOS deviceyou’ll need to set up physical device deployment in Xcodeand an Apple Developer account. If your app is using Flutter plugins,you will also need the third-party CocoaPods dependency manager.
- You can skip this step if your apps do not depend onFlutter plugins with native iOS code.Install and set up CocoaPods by running the following commands:Note: The default version of Ruby requires
sudo
to install the CocoaPods gem. If you are using a Ruby Version manager, you may need to run withoutsudo
. - Follow the Xcode signing flow to provision your project:
- Open the default Xcode workspace in your project byrunning
open ios/Runner.xcworkspace
in a terminalwindow from your Flutter project directory. - Select the device you intend to deploy to in the devicedrop-down menu next to the run button.
- Select the
Runner
project in the left navigation panel. - In the
Runner
target settings page,make sure your Development Team is selected.The UI varies depending on your version of Xcode.- For Xcode 10, look under General > Signing > Team.
- For Xcode 11 and newer, look underSigning & Capabilities > Team.
When you select a team,Xcode creates and downloads a Development Certificate,registers your device with your account,and creates and downloads a provisioning profile (if needed).- To start your first iOS development project,you might need to sign intoXcode with your Apple ID. Development and testing is supported for any Apple ID.Enrolling in the Apple Developer Program is required todistribute your app to the App Store.For details about membership types,see Choosing a Membership.
- The first time you use an attached physical device for iOSdevelopment, you need to trust both your Mac and theDevelopment Certificate on that device.Select
Trust
in the dialog prompt whenfirst connecting the iOS device to your Mac.Then, go to the Settings app on the iOS device,select General > Device Managementand trust your Certificate.For first time users, you may need to selectGeneral > Profiles > Device Management instead. - If automatic signing fails in Xcode, verify that the project’sGeneral > Identity > Bundle Identifier value is unique.
- Open the default Xcode workspace in your project byrunning
- Start your app by running
flutter run
or clicking the Run button in Xcode.
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Android setup
Note: Flutter relies on a full installation of Android Studio to supply its Android platform dependencies. However, you can write your Flutter apps in a number of editors; a later step discusses that.
Install Android Studio
- Download and install Android Studio.
- Start Android Studio, and go through the ‘Android Studio Setup Wizard’.This installs the latest Android SDK, Android SDK Command-line Tools,and Android SDK Build-Tools, which are required by Flutterwhen developing for Android.
Set up your Android device
To prepare to run and test your Flutter app on an Android device,you need an Android device running Android 4.1 (API level 16) or higher.
- Enable Developer options and USB debugging on your device.Detailed instructions are available in theAndroid documentation.
- Windows-only: Install the Google USBDriver.
- Using a USB cable, plug your phone into your computer. If prompted on yourdevice, authorize your computer to access your device.
- In the terminal, run the
flutter devices
command to verify thatFlutter recognizes your connected Android device. By default,Flutter uses the version of the Android SDK where youradb
tool is based. If you want Flutter to use a different installationof the Android SDK, you must set theANDROID_SDK_ROOT
environmentvariable to that installation directory.
Set up the Android emulator
To prepare to run and test your Flutter app on the Android emulator,follow these steps:
- EnableVM accelerationon your machine.
- Launch Android Studio, click the AVD Managericon, and select Create Virtual Device…
- In older versions of Android Studio, you should insteadlaunch Android Studio > Tools > Android > AVD Manager and selectCreate Virtual Device…. (The Android submenu is only presentwhen inside an Android project.)
- If you do not have a project open, you can choose Configure > AVD Manager and select Create Virtual Device…
- Choose a device definition and select Next.
- Select one or more system images for the Android versions you wantto emulate, and select Next.An x86 or x86_64 image is recommended.
- Under Emulated Performance, select Hardware - GLES 2.0 to enablehardwareacceleration.
- Verify the AVD configuration is correct, and select Finish.For details on the above steps, see ManagingAVDs.
- In Android Virtual Device Manager, click Run in the toolbar.The emulator starts up and displays the default canvas for yourselected OS version and device.
Web setup
Flutter has early support for building web applications using the
beta
channel of Flutter. To add support for web development, followthese instructions when you’ve completed the setup above.Next step
Set up your preferred editor.