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Dismiss keyboard by touching background of UITableView

... a "gesture" on a single tap so no further customization is required), specifying a target/action for when the gesture is fired, and then attaching the gesture recognizer object to your table view. E.g. Perhaps in your viewDidLoad method: UITapGestureRecognizer *gestureRecognizer = [[UITapGestureR...
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git ignore all files of a certain type, except those in a specific subfolder

...tching file excluded by a previous pattern will become included again. If a negated pattern matches, this will override lower precedence patterns sources. http://schacon.github.com/git/gitignore.html *.json !spec/*.json ...
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Why do we need argc while there is always a null at the end of argv?

...==NULL is guaranteed. See C11 5.1.2.2.1 Program startup (my emphasis) If they are declared, the parameters to the main function shall obey the following constraints: The value of argc shall be nonnegative. argv[argc] shall be a null pointer. Providing argc therefore isn't vital but...
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How to delete all Annotations on a MKMapView

...userLocation]; [mapView removeAnnotations:[mapView annotations]]; if ( userLocation != nil ) { [mapView addAnnotation:userLocation]; // will cause user location pin to blink } } Example 2, I personally prefer to avoid removing the location user pin in the first place, -...
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Entity Framework Timeouts

... There is a known bug with specifying default command timeout within the EF connection string. http://bugs.mysql.com/bug.php?id=56806 Remove the value from the connection string and set it on the data context object itself. This will work if you remove t...
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List of Java class file format major version numbers?

... These come from the class version. If you try to load something compiled for java 6 in a java 5 runtime you'll get the error, incompatible class version, got 50, expected 49. Or something like that. See here in byte offset 7 for more info. Additional info c...
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Android Closing Activity Programmatically

... you can use this.finish() if you want to close current activity. this.finish() share | improve this answer | follow ...
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How do I run git log to see changes only for a specific branch?

...ve the branch checked out): git cherry -v master or git log master.. If you are not in the branch, then you can add the branch name to the "git log" command, like this: git log master..branchname If your branch was made off of origin/master, then say origin/master instead of master. ...
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How can I hash a password in Java?

...hentication { /** * Each token produced by this class uses this identifier as a prefix. */ public static final String ID = "$31$"; /** * The minimum recommended cost, used by default */ public static final int DEFAULT_COST = 16; private static final String ALGORITHM = "PBKDF...
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Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...ng cd /etc/sysconfig/network-scripts/ cp /etc/sysconfig/network-scripts/ifcfg-eth* /etc/sysconfig/network-scripts/备份 vi ifcfg-bond0 节点1 为172.16.110.100 节点2 为172.16.110.110 vi ifcfg-bond1 节点1 为10.10.120.100 节点2 为10.10.120.110 节点1,节点2一...