Service is one of the four major Android components, no user interface, has been running in the background.Why use a service to start a new thread to perform time-consuming tasks instead of initiating a sub-threading process directly in the activity?
Original address: http://www.blogjava.net/zhip/archive/2011/02/14/344258.htmlThe Android:windowsoftinputmode property in the Androidmanifest.xml file uses theThe Androidmanifest.xml File"Stateunchanged", "Statehidden","Statealwayshidden",
Since Android is an operating system developed for mobile devices, we should always take the memory issue into account when developing applications. Although the Android system has a garbage collection mechanism, this does not mean that we can
Today, when setting up a ListView custom adapter, clicking on item has a click Effect and then clicking on a button in the item layout file also triggers the Click Effect of the ListView.Solutions are:1. Add in the adapter layout fileXML version= "1.
App Mainstream UI Framework structureFirst, a simple exampleDescription: complete a simple interface setup using the app's mainstream UI framework structureBuild page Effects:Ii. construction process and points of attention1. Create a new project,
[Transfer from]http://www.360doc.com/content/13/0102/22/6541311_257754535.shtmlImportant thing to say three timesFillbefore refers to the end of the animation when the picture stays in the first frame, fillafter refers to the end of the animation is
Multi-lingual localization is often used when we do iOS projects, the following are based on their own experience and use of the scene, to fully speak the multi-lingual localization of the solution.First, we need to understand the principle and
Use HTML5 Canvas's DrawImage (img,sx,sy,sw,sh,x,y,w,h) to realize the movement of characters. where IMG is a picture, sx,sy,sw,sh four parameters are optional, when you need to trim the picture, the x, y coordinates to trim from, and the width and
Answer the idea: what is it? What's the use? What to pay attention to? What are the classes for the same feature? What are the similarities and differences between these classes?1. Describe the activity life cycle? What are the two activity jumps
#iOS开发日报 #iOS technology video This is Hao brother to everyone recorded video, mainly for is overstating, want to improve the students, we have the need to see.1 Adaptive Layout Masonry git:https://github.com/lanoudl/lo_masonry Link:
1.px (pixels) pixels – is the pixel, which is the actual pixel unit on the screen.Dip or DP (device independent pixels) devices independent pixels, related to the device screen.SP (scaled pixels-best for text size): Similar to DP, mainly handles
One, the event loop. A typical graphical application often spends a lot of time waiting for the user to operate. The program will remain idle until a decision is made very slowly by the person controlling the control, such as clicking the mouse or
Sometimes when we import someone else's project, the Gen directory disappears, even if the corresponding Sdktarget is modified, it is no use, the refresh is useless, we need to fix it.Modify the target of the SDK: right-click project-->android tools-
If the tried friends will find that in Onactivityresult () set these properties, as if they do not work, although I die or do not know the specific reason, I directly default it may not be set in the inside, so it can only be set in other places,
Android uses ListView to implement data list display 2-data binding with SimpleadapterCompared to the previous needs to obtain
Get to collection data
Listperson> persons = Service.getscrolldata (0, 10);
list hashmapString ,
Before contacting the ListView and Adapter,adapter to connect the data source and view, the actual application, we want to display a lot of data, and the screen is only so large, the system can only display the content of the screen, when we swipe
Android file storage and loading, mainly used to request the network of JSON file cache, introduced a simple expiration time for everyone to reference learning!File storage1 Private voidSavelocal (String json,intIndex) {2 3BufferedWriter BW =
LLDB Command Common (memo)If you are going to run this in the simulator, you can enter the following in the "(lldb)" prompt:(lldb) PO $eaxLLDB is the default debugger in xcode4.3 or later Versions. If you are using an older version of xcode, you are
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