大约有 7,300 项符合查询结果(耗时:0.0219秒) [XML]

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ImportError: No module named matplotlib.pyplot

... In python3, a separate installation of matplotlib using python3 -m pip install matplotlib solved the error. Tested on Ubuntu 16.04. – vineeshvs Jun 5 '19 at 6:22 ...
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HTTP status code 0 - Error Domain=NSURLErrorDomain?

I am working on an iOS project. 12 Answers 12 ...
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UITableView Setting some cells as “unselectable”

...ew's cell property to be unselectable? I don't want to see that blue selection box when the user taps on the cell. 16 Answe...
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Is there a way to check if a file is in use?

... Updated NOTE on this solution: Checking with FileAccess.ReadWrite will fail for Read-Only files so the solution has been modified to check with FileAccess.Read. While this solution works because trying to check with FileAccess.Read will fail if the fi...
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How to handle ListView click in Android

... public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Toast.makeText(MainActivity.this, "You Clicked at " +countries[+ position], Toast.LENGTH_SHORT).show(); } – bourax webmaster Apr 5 '14 at 9:51 ...
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What exception classes are in the standard C++ library

What are the exception classes that are included in the standard C++ library, and what should they be used for? I know there are a few new C++11 exceptions, but I'm not sure what they are or where they are. ...
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Disable a Button

I want to disable a button ( UIButton ) on iOS after it is clicked. I am new to developing for iOS but I think the equivalent code on objective - C is this: ...
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Max length UITextField

... With Swift 5 and iOS 12, try the following implementation of textField(_:shouldChangeCharactersIn:replacementString:) method that is part of the UITextFieldDelegate protocol: func textField(_ textField: UITextField, shouldChangeCharactersIn ...
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How to enable NSZombie in Xcode?

..." tab on the right. Add NSZombieEnabled to the "Environment Variables" section and set the value to YES, as you could in Xcode 3. In Xcode 4.1 and above, there's also a checkbox on the "Diagnostics" tab of the "Run" stage to "Enable Zombie Objects". With Xcode 6.4: ...
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Disable Automatic Reference Counting for Some Files

I have downloaded the iOS 5 SDK and found that ARC is a great feature of the new Apple compiler. For the time being, many third party frameworks don't support ARC. Could I use ARC for my new code and keep the current retain/release code unchanged? The ARC converter doesn't work here, because some fr...