Ontouch () method returns True, it means that the event is consumed and the Ontouchevent (event) is not executed, or ontouchevent (event) is executed. Take a look at some of the source code for the Ontouchevent () method: Public Boolean ontouchevent(Motionevent event) { ... OmittedFinal intAction = Event.getaction ();if((viewflags clickable) = = Clickable | | (ViewFlags long_clickabl
mark is:1. Text needs to provide: Font size (px), font color;2. The background color value of the top title bar, transparency;3. There is actually a dividing line below the title bar and above the tab bar, which needs to provide the color value;4. The background color of the content display area (if all the pages are white, just say a word to the engineer);5. The background color value of the bottom tab bar.Because there are thousands of pages, I would like to talk about each page, but it is no
The following example shows you how you can preventAnyItem from being selected by adding an attribute (named "clickable", but you cocould name it anything you wanted) and using E4X expressions to determine if the currently clicked item shocould be selectable or not.
Full code after the jump.
Note that in the following example, items with the "(x)" suffix are not-selectable, only the following nodes shocould be selectable: "grandchild 1", "grand
are digested in the View. False is returned, indicating that only the ACTION_DOWN event is processed in the View. The event continues to be passed to the parent View (ViewGroup .... If (li! = Null li. mOnTouchListener! = Null (mViewFlags ENABLED_MASK) = ENABLED li. mOnTouchListener. onTouch (this, event) {// The onTouch method here is the onTouch () method returned true when we register the OnTouchListener callback;} if (onTouchEvent (event )) {// onTouchEvent refer to the following source
we can think of the Code by reading the dispatchTouchEvent method. Because the onTouch return value is true, this judgment condition returns true immediately when the dispatchTouchEvent method is used.If (onTouchEvent (event)-> the onTouchEvent method is not executedIs the click method not executed due to this reason? Obviously, let's look at the source code of the onTouchEvent method.OnTouchEvent source code parsing:
The source code of the onTouchEvent method is as follows:
Public boolean onTo
one false in the four judgments above.
Let's assume that we onTouch() are returning false in the method so that we can execute the ontouchevent smoothly, then look at the ontouchevent source code:
/** * Implement this method to handle the screen motion events. *
The source code is longer than the dispatchtouchevent, but we are also looking at the focus:if (((viewFlags CLICKABLE) == CLICKABLE ||
lightweight, open-source Python web framework that is part of the pylons project. Pyramid can only be run on Python 2.x or later versions of 2.4. There is no need to declare when using back-end databases, and some specific templating systems are not enforced at development time.: Http://www.pylonsproject.org/projects/pyramid/download5.DjangoDjango is an open-source web framework and uses MVC design patterns. It uses a very broad Python web framework, including many very useful libraries to acce
ready-made algorithm and slightly modifying it may not be the best choice. Data scientists should still learn the most important algorithms, how to develop them, and how to choose the most appropriate algorithms based on their intentions? "think Big data" 's infographic shows 12 of the most important algorithms for different applications, and presumably this is something that every data scientist would have loved.Note: The Chinese translation in the
Hard to analyze a bunch of big data, no one looked! If you're starting to get useful information from your data, it's exactly what you need-data visualization. As the saying goes, there is a picture of the truth, a picture wins thousands of words, pleasing the eyeball, the rest are said.Monday Big offer!! Mining 21 hot data visualization tools, crisp high-value infographic, it is necessary to do so!FushioncartsNot only does the Fusioncharts Suite XT b
Plugin Introduction:Infographics improve the visualization of the data, not only beautiful design, effective, but also help us to more accurate and more efficient understanding of information, this infographic how to make it? Today, we recommend a simple plugin for making information images. Piktochart is a non-professional online information image design tool from Malaysia that does not require the download of complex software or cumbersome operation
650) this.width=650; "src=" http://imga.chrome001.com/article/201603/29/232943sykwsgs1cwyzw5s0.png "border=" 0 " Class= "Shadow" alt= "Piktochart (making infographics)" style= "border:0px;vertical-align:middle;margin-bottom:0px";/>Plugin Introduction:Infographics improve the visualization of the data, not only beautiful design, effective, but also help us to more accurate and more efficient understanding of information, this infographic how to make it
Often some beginners ask the small: when is the design of the use of Photoshop or Ai (Adobe illustrator) good? What are the differences between AI and PS? Want to know the actual there are those different, please look at today's small compilation for everyone to organize the AI vs PS infographic, you will know the answer after reading.This infographic is from the designer M.A Kather production, through the
will use the previous article to customize the view--elastic sliding examples As an example of this article, simply add some code, the modified code, please click to view.
Second, the example defaults
We can see from the XML of the sample code that the pictures are clickable.
Let's click here to check out the printed log.
Draw an event-passing flowchart based on the printed log
Now let's take a look at the process of the sequence of
:
Text needs to be provided: Font size (px), font color;
The background color value of the top title bar, transparency;
There is actually a dividing line below the title bar and above the tab bar, which needs to provide the color value;
The background color of the content display area (if all the pages are white, just say a word to the engineer);
The background color value of the bottom tab bar.
Because there are thousands of pages, I would like to talk about each p
been solved: The call relationship between onTouchListener and onTouchEvent of View should be understood ~ Let's go; continue.3. onTouchEvent of the View:
Next is the onTouchEvent of the View:
/** * Implement this method to handle touch screen motion events. * * @param event The motion event. * @return True if the event was handled, false otherwise. */ public boolean onTouchEvent(MotionEvent event) { final int viewFlags = mViewFlags; if ((viewFlags ENABLED
Quick guide:steps to Perform Text Data cleaning in PythonintroductionTwitter has become a inevitable channel for brand management. It has compelled brands to become more responsive to their customers. On the other hand, the damage it would cause can ' t be undone. The character tweets have now become a powerful tool for customers/users to directly convey messages to brands.For companies, these tweets carry a lot of information as sentiment, engagement, reviews and features of its products an D w
here is an official HTC picture showing the complete process from the release of the Android system to the user's hands:Awesome INFOGRAPHIC:HTC shows Us "The Anatomy of an Android OS Update" from PDK to OTAEver wonder what is the entire process of an Android update looks like? How and when does carriers get involved? Who is all of the players? How much quicker or fewer steps is there for developer or Google Play editions? When does manufacturers see the newest version of Android? All of the can
host view fstab
11.) Another method is rsync-based push.
# Rsync-A/etc/PAM. d rsync: // 172.16.32.11/tools # ls/backup/data/# rsync host view Pam. d
12.) the remote host pulls data from the rsync host.
# Rsync-A 172.16.32.11: Tools // TMP # ls/tmp/# rsync host operation Pam. d
3. Rsync + inotify synchronize data from time to time.
1.) infographic introduction:
Inotify has been added to the kernel on Linux Kernel 2.6.13. It is a monitoring tool tha
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