In this record Android messaging mechanism, Mainthread sends a message to Workthread. (Mainthread→workthread)Steps:1. Prepare Looper objects2. Generate the handler object in a child thread3. Send Message in MainthreadCode:Layoutactivity:Package
Creating anonymous threads in Java main focus on the three-way: Thread,runnable,handler to achieve, the following are described separately ~First, by thread to createNew Thread () { publicvoid run () { System.out.println ("WYTINGS1"); }
QQ space in the wrong account or password will be a left and right shaking, this animation can be implemented using key frame animation.-(void ) Shakeview: (UIView *) View { Cakeyframeanimation *shakeanimation = [cakeyframeanimation animation];
1. One thing to be clear, the picture to be displayed, first of all to decode the image before it can be displayed2. Picture decode takes time, the bigger the picture, the more details of the picture, then the longer it decode time3. The stupidest
Error:The specified child already has a parent. You must call Removeview (). Answer:This error is straightforward, you Viewgroup.addview (Childview), Childview already has a Father view. The reason for the error is many, I mainly talk about
In front of the drawing of basic graphics, the four-sided shape is composed of a few straight lines, now there is a more convenient method.first, about the matrix operation1. Draw a quadrilateralA four-sided drawing is done by setting two endpoints (
The Uidevice class uses the built-in orientation property to get the physical direction of the device. iOS devices support 7 possible values for this property."Uideviceorientationunknown: The direction is unknown."uideviceorientationportrait: The
Public Requestqueue Mrequestqueue = Volley.newrequestqueue (Getapplicationcontext ());Everything starts with this code ...Follow Newrequestqueue (context) into the volley class Public class Volley { ... Public Static Requestqueue
Tilt Rollers Use the device's built-in accelerometer to control movement around the contents of the Uiscrollview. When the user increases the device, the material drops accordingly, he does not position the view on the screen, but instead scrolls
During the download of the app that was distributed by the Enterprise, IOS8 found that the enterprise version of the app on the official website clicked to see if the app was installed, but it was never installed, and the device console found the
Usually write code will encounter some problems, ready to write a comparison of the basic control using the summary series! This series is constantly updated, hoping to help the needs of friends! get!Android Base controls use
Sharedpreferences is a mechanism that Android provides to store some simple configuration information, such as some default welcome words, login usernames and passwords, and so on. It is stored as a key-value pair, so that we can easily read and
First of all, thank you for using this software and give my opinion of friends, have your opinion, have this version.Second, the search function and classification filter function (if you mention the comments, remember in the following Mark Oh,
English Original: http://developer.android.com/guide/topics/manifest/supports-screens-element.htmlAcquisition (update) Date: 2014-7-3Moved from the original blog: http://blog.sina.com.cn/s/blog_48d491300100zmvk.html
Grammar:
Recently encountered in the project Uitextview on iOS7 on the last line when the cursor disappears, see the last row, become blind hit, StackOverflow on the site has the big God pointed out, is iOS7 itself bug, plus the following section of code can:
First of all, thank you for using this software and give my opinion of friends, have your opinion, have this version.Second, the search function and classification filter function (if you mention the comments, remember in the following Mark Oh,
1)ContentProviderIntroductionThis class is used to provide data and methods for storing data, and it is possible to share its data with other applications. Although the use of other methods can also share data, but the way data access will vary
transformpage (view view, float position)view is the sliding view, Position here is the float type, is a representation of the current sliding state, such as when sliding to the full screen, position is 0, if the previous page and the next page is
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