Send a policy parameter diagram to set the diagram:Scenario 1-Lazy loading/delayed loading of dataIn many cases, in order to improve the loading speed of the Web page, reduce unnecessary overhead, the page data will be split into several parts, first loading the data in the
void onDestroyView () {super. onDestroyView (); unbinder. unbind ();}}
Write more lazyFragment
/***** Lazy loading of Fragment ** conditions for loading data: * 1. view initialized * 2. the view is visible to the user */public abstract class LazyLoadFragment extends BaseFragment {public boolean isInit = false; // whet
1. Why should I use lazy loading?For pages with too many pictures, in order to speed up the page loading, many times we need to do not load the picture within the viewable area of the page , wait until the visible area is scrolled to load. This will greatly improve the performance of page loading and improve the user e
Image Lazy Loading plugin lazyload use methodFirst, how to use:Lazy Load relies on jQuery. Introducing FilesSettings for the basic properties of a picturefigure " width= "640" height= "480" data-original= "img/example.jpg "/>Last use:$ (function () {$ ("Img.lazy"). Lazyload ();});Second, basic options:1. Set a critical pointThe default slice will appear on the screen when loaded . if you want to load the pi
With MyBatis lazy loading, two steps are required:1. Add a statement to the global configuration file (lazyloadingenabled default to False,aggressivelazyloading true)Settings> delay Load Total switch - settingname= "lazyloadingenabled"value= "true"/> Intrusive delay - settingname= "Aggressivelazyloading"value= "false"/>Settings>2. Write the mapping fi
new model to the old model.Poor performanceOldmodel. setxxxx (newmodel. getxxxx ());...3. Use paramsprepareparamsstack + preparable interceptor togetherThe prepare interceptor runs first, assigns a value to the model, and then calls modeldriven. The model pushed to the top of the stack is a new model,However, parameters must be passed mainly in the prepare Interceptor. defaultstack cannot complete parameter passing in the prepare,Therefore, you can change it to paramsprepareparamsstack to achie
When a website has a lot of JS code to load,JS Code placement in a certain extent will be the image page loading speed, in order to make our page load faster, this article summarizes the JSlazy loading of several methods, hope to be useful to everyone. 1. Delay loading JS codeThe code is as follows :This way by delaying the l
Lazy LoadingLazy loading, when the object is actually used to send SQL in MyBatis, there is only a delay for the associated object, and lazy loading in hibernate affects this object, a single-ended relationship, and a collection. The global switch is configured in the configuration file as follows
entity class
public
0 Lazy Load Concept
① lazy Load (load on demand) is a unique and powerful method of data acquisition, which means that the program defers access to the database, which ensures that sometimes unnecessary access to the database, because access to the database is time-consuming.② when we query an object, by default, only the normal properties of the object are returned, and when the user goes to use the objec
1.Strong for general objectsWeak for UI ObjectsAssign for structural type%02d integers save 2 bits, not enough of the front fill 0Duplicate Code encapsulation extraction, the duplication of things extracted to write to the function, the different things as parameters/***/Document comments2.Delayed loading of data (lazy loadin
IOS_Swift _ Better understanding of the difference between closures and lazy loading and normal assignment
To define a variable of a string:
// Directly assign var str = "JobDeer" // closure mode var str: String = {return "JobDeer"} () // simplify the closure, omitting equal signs and parentheses: var str: String {return "JobDeer "}
// The get and set methods can be defined in the closure. Var str: String
Tip 29. How to avoid lazy loading or load () reader issuesIf you have the following code:1 var results = from C in CTX. Customers 2 where c.salesperson.emailaddress = = "..." 3 Select C; 4 foreach (var customer in results) 5 { 6 Console.WriteLine (Customer. Name); 7 if (isinteresting (customer)) 8 { 9
When our Viewpager contains a lot of fragment when the full load comes out too much memory we can use fragment lazy load when fragment is visible load dataViewpager Loading fragment There is a feature that will preload the currently visible page left and right adjacent pages adjacent pages will go through the life cycle (from Onattach to Onresume)1 /*2 * DATE:14-
execution of the AppServiceProvider register method to register the new ServiceProvider is not delayed loading.
Summarize
Use lazy loading with cautionServiceProvider
After you change defer the property values, you need to perform php artisan clear-compiled and php artisan optimize update the serviceprovider cache.
Registration and the delay
parentheses. Then we can omit the return value type in the closure var str:string={arg1,arg2 in return arg1+arg2;} ("Job", "Deer")//continue to simplify Var str:string={return $0+$1;} ("Job", "Deer")//if there is only one line of code in the closure, return can also be omitted. var str:string={$0+$1;} ("Job", "Deer")//If the closure does not define a parameter, such as Var str:string={return "Jobdeer"} ()//The parentheses do not have arguments at all, you can omit the parentheses. An equal sign
Scenario: When you need to delay loading the data, you can use SetTimeout ().Meaning: Used to call a function or evaluate an expression after a specified number of milliseconds.Example 1:var t=settimeout ("Alert (' 5 seconds! ')", 5000);Example 2: A simple timing operation: "Button"Value="Start timing! "onclick="Timedcount ()">"text"Id="txt">"Button"Value="Stop timing! "onclick="Stopcount ()">The operation
The first way:1 ScriptID= "T2"type= "Text/template"> 2 _.each (data,function(item) {%> 3 Div class="UB Ub-ac Row-info"ID="">4 Div class="img-size5 mgn-left mgn-right ub-img icon-touxiang "ID="icon">/div>5 Div class="ub-f1 Ub-ac">6 Div class="FS2 BFC2">Item.name||Item.fullname%>/div>7 Div class="FS2 bfc3 mgn-top">Item.rolename%>/div>8 /div>9 /div
Let's talk about what a single case mode is.
First, the single case pattern is one of the object's creation patterns, in addition to the factory pattern. Three features of a single case pattern:1, the class has only one instance2, the class creates the instance itself (the instance object inside the class creates itself)3, exposing this instance interface to the entire system
Source of the above content: http://www.cnblogs.com/snandy/archive/2011/04/07/2007717.html
1, a Hungry man type single
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