First, IntroductionThe development environment for this set of learning notes is the latest version of 1.3.1 for Windows 10 Pro and Android Studio.Android Studio is an Android development environment based on IntelliJ idea. Similar to Eclipse adt,android Studio provides integrated
the coordinate system in this transformation. In Android, the default view coordinate system is the upper-left vertex (0, 0), the x-axis, and the y-axis. This requires that the rect coordinate be transformed. Another difficulty is that this face detection must be started after the camera is turned on, and if you take a photo or stop the preview, you need to activate it again. You need to add a delay when activating, otherwise it won't work.In additio
materials (instance) will cause the batch to fail. 7, objects with Lightmap contain additional (hidden) material attributes, such as lightmap offset and scaling coefficients. Therefore, objects that have lightmap will not be batched (unless they point to the same parts of Lightmap). 8, multichannel shader can interfere with batch operations. For example, almost all shaders in unity support multiple light sources in forward rendering and effectively open multiple channels for them. 9,
the old version of appium0.18.x to the current appium1.x, note the change in class name and XPath policy: You now need to use FQCN to describe your control. In other words, the original:Findelementbyxpath (""//textview[contains (@text, ' Add note ')] ")Need to change intoFindelementbyxpath ("//android.widget.textview[contains (@text, ' Add note ')]"For detailed changes please see "appium0.18.x Migration to appium1.x"10.3 References are said to be not very stable: Https://github.com/appium/appiu
Turn off and turn on the screen based on Light sensingUidevice *_curdevice = [Uidevice currentdevice];[_curdevice Setproximitymonitoringenabled:yes];Nsnotificationcenter *_defaultcenter = [Nsnotificationcenter defaultcenter];[_defaultcenter addobserverforname:uideviceproximitystatedidchangenotificationObject:nilQueue:[nsoperationqueue Mainqueue]usingblock:^ (Nsno
this warning and click the "OK" button to continue the installation. After the installation is complete, a pop-up message box prompts you to tell us that you need to restart eclipse as shown in: Click the "Yes" button to restart Eclipse. After eclipse restarts, it is intelligently associated with the Android SDK in its same directory based on the location of the directory, and if eclipse does not automati
1. What is density
1) Density
Density represents the number of display points per inch (logical value), its unit is DPI:DOT/inch, usually large screen, density large, screen hours, density small, usually
When the actual screen resolution is 240px*400px, density=120
The actual screen resolution is 320px*533px,density=160
The actual screen resolution is 480px*800px,density=240
2) Resolution
Is the whole screen is how many points, such as 800x480, it is the software display unit
3 s
This series is read "Pro Android4" Reading notes, also includes the collation of web reading materials, as well as personal experience.Because smartphones are introduced into APS (application processors), Android is, in a sense, a personal computer with a full architecture of desktop computers, using linux-based OS stacks to manage devices, memory, and processes. Android's Java library covers many aspects o
Android: Turn pages up and down, and turn pages up and down
If you achieve up or down the page flip effect, we use this open source project: https://github.com/openaphid/android-flip
Aphid FlipView is a UI component that enables Flipboard paging.
After the download is complete, import it to your current project. Let's
Original URL: http://blog.csdn.net/chenyafei617/article/details/6570928First, IntroductionToday we will talk about how to compile Android source on the Ubuntu platform, my version of ubuntu10.04, before the compilation process explained I want to talk about making, make snod, makes kernel role, m, MM, Mmm their role as well as the difference.-Make: Compile the source code, generate the corresponding system image file.-Make Snod: Regenerate a system.im
For a programmer, "top-down" is one of the most common analytic and problem-solving methods, but it is a simple and effective one. So, apply it to the learning of Android, not to turn their impulses into a blind and overwhelmed.According to the thought of "Top down", "from whole to local", my basic Learning idea is:
From the global start, macro understanding of the
unit (DP, SP, PX, in, PT, MM, dip) ,android have the following: PX (Pixels, pixels) : corresponds to the actual pixel point on the screen. in (Inches, inches) : Screen physical length units. mm (millimeters, mm): The unit of physical length of the screen. Pt (Points, lbs) : Screen physical length unit, 1/72 inch. DP (density-independent pixels) : Logical unit of length, 1dp=1px=1/160 inch on a dpi screen. As the density changes, the corresp
paging methods.NOPI.dll: Plugin for exporting Excel reports (based on Microsoft OPENXML Implementation) (NOPI.CSS.DL style via CSS)Enterprise Library: Microsoft's best practices component for business-class application development.powercollections: A high-level open source collection written by a bull man abroad.Mobile Internet and cloud computingpushsharp: Pass. NET pushes messages to various mobile platforms.Mono for
information of the ice candidate into the SIP message body in the form of a session protocol. If the turn and ICE protocols are used in other session protocols, then "MUSIC-ICE-NONSIP" will provide some functionality that the session protocol must implement.
Although the application of the turn server makes it possible to communicate with two hosts after Nat, this is too expensive for
Hello, everyone. Welcome to my blog. I am Qin Yuanpei and my blog address is blog.csdn.net/qinyuanpei.
Today, let's talk about the turn-based system. The blogger once admitted that he was a person who liked domestic RPG games. The games, such as legend of the fairy sword, xuanyuan sword, and Gu Jianqi tan, all brought many warm memories to the blogger. So what is the conversion system? Let's move our line o
provide matrix transformations transform (A, B, C, D, E, F) and settransfor ...Read full posted @ 2014-04-08 09:29 Break Hyo Reading (848) | Comments (2) EditRegional medical mobile Medical imaging pacs--html5 image processing based on HTML5 (1) Magnifier effect Summary: Only provide reference and learning, code only to specify a thought, reproduced please indicate the source. To see more image processing features for this system, refer to: Regional
telephony Service, eventually reaching Incallui and starting the interface and displaying the content based on the current call status (dialing).③. Update Call StateThe green arrows are indicated in the figure. In Android 4.4, the call status is changed from idle to dialing, so the update call state process is consistent with the start Incallui process, but start Incallui executes only once, The update cal
the camera resolution is fixed, so there is a need to make some adjustments to calculate the correct scaling ratio.4. Set the scan box to squarepublicsynchronizedrectgetframingrect () { if (framingrect==null) { if (camera==null) { returnnull; } pointscreenresolution=configmanager.getscreenresolution (); if (screenresolution==null) {// calledearly,beforeinitevenfinished returnnull;} intwidth= Finddesireddimensioninrange (screenresolution.x,min_frame_width, max_frame_width); // Set the scan box
that we don't need to use, we can set it to null, so that when the GC runs, it's good to iterate over your object without reference and automatically reclaim the memory that the object consumes. We can't release unwanted memory as soon as C + +, but we can proactively tell the system which memory can be recycled.3. View App Memory usageLet's look at how the memory usage of our program runs during the development process. We can view it through one of the ADB commands:Edited by Mythouhttp://www.
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