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Android应用内存泄露分析、改善经验总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...FileOutputStream使用完后没有关闭，这种问题在Android Studio 2.0中能够通过静态代码分析检查出来，直接改善就可以了；
自定义View中使用TypedArray后，没有recycle，这种问题也可以在Android Studio 2.0中能够通过静态代码分析检查出来...
JPA : How to convert a native query result set to POJO class collection
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I have found a couple of solutions to this.
Using Mapped Entities (JPA 2.0)
Using JPA 2.0 it is not possible to map a native query to a POJO, it can only be done with an entity.
For instance:
Query query = em.createNativeQuery("SELECT name,age FROM jedi_table", Jedi.class);
@SuppressWarnings(...
Anonymous method in Invoke call
...need to tell the compiler what type of delegate to create ; MethodInvoker (2.0) or Action (3.5) are common choices (note they have the same signature); like so:
control.Invoke((MethodInvoker) delegate {this.Text = "Hi";});
If you need to pass in parameters, then "captured variables" are the way:
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How to get numbers after decimal point?
...> frac, whole = math.modf(2.5)
>>> frac
0.5
>>> whole
2.0
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Differences between action and actionListener
...ht that exceptions in actionListeners are swallowed by default, but in JSF 2.0 this behavior can be altered. See my answer below for details.
– Arjan Tijms
Dec 19 '10 at 14:23
3
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Reducing the space between sections of the UITableView
...duce.
try this code
It works for me :-)
tableView.sectionHeaderHeight = 2.0;
tableView.sectionFooterHeight = 2.0;
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How do I get hour and minutes from NSDate?
...apple.com/library/ios/documentation/Cocoa/Reference/…: "Available in iOS 2.0 and later." I have definitely use this API for years.
– Thomas Müller
Feb 3 '15 at 23:32
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SAML: Why is the certificate within the Signature?
...r(assertion.NameTable);
ns.AddNamespace("samlp", @"urn:oasis:names:tc:SAML:2.0:protocol");
ns.AddNamespace("asrt", @"urn:oasis:names:tc:SAML:2.0:assertion");
ns.AddNamespace("dsig", @"http://www.w3.org/2000/09/xmldsig#");
// get nodes down to the signature
var responseNode = assertion.SelectSingleN...
How to get the name of the calling method?
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In Ruby 2.0.0, you can use:
caller_locations(1,1)[0].label
It's much faster than the Ruby 1.8+ solution:
caller[0][/`([^']*)'/, 1]
Will get included in backports when I get the time (or a pull request!).
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JPA OneToMany not deleting child
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With JPA 2.0, you can now use the option orphanRemoval = true
– itsadok
Feb 2 '12 at 13:17
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