rendering

问题 When doing research on web render optimization, i've encountered a strange render behavior on many popular websites. Big part of frame render time is empty space with no operations. Example from Apple promo page The only thing that operates in that timeframe is a GPU. I couldn't find any cause for this behavior. What could be the reason behind this issue and how can i improve render time of such frames in my projects? 回答1: This is idle time, the time when the browser is waiting on the CPU or

问题 We have encountered something that looks like a Silverlight 4 rendering problem when running our Silverlight 4 app in FireFox 4 and 5 on MacBook’s. There is no problem in Safari or OOB (that’s Safari I guess). The problem is that large parts of the UI goes white and gradually reappears by moving the mouse over the white areas, or if the UI canvas is repainted. We use Telerik controls in our app, but the problem can occur just by scrolling a list inside a scrollviewer, so I dont think its

问题 What My web-app is made dynamic through Google's AngularJS. I want static versions of my pages to be generated. Why Web-scrapers like Google's execute and render the JavaScript; but don't treat the content the same way as their static equivalents. References: Does heavy JavaScript use adversely impact Googleability? (Programmers StackExchange) Making AJAX Applications Crawlable (Google Documentation for webmasters) How Not sure exactly how—which is why I'm asking—but I want to access the same

问题 On LG Nexus 4 (android 5.0.1) we are facing a strange issue, UI got distorted after exploring the app for some time. Screen shot is at below link. Any help will be appreciable. 回答1: I also had this problem recently. These solutions helped me: Android SystemUI glitches in Lollipop and Android Lollipop Activity Screen corrupted For me the problem were some WebViews that were distorting my layouts. 来源： https://stackoverflow.com/questions/27617847/ui-distortion-issue-on-android-5-0-lollipop

问题 As a result of the search for an answer of this question, I ran into a rather uncomfortable finding. It seems that rendering only glClearColor() at 60 fps pushes the iPhone at 27% render utilization. That means that doing hardly anything at all - only refreshing the screen - makes the iPhone use more than a quarter of its render capacity. Is this to be expected? The POWERVR should hit around 270 megapixels/second at least, according to the documentation. As unwind correctly stated below, 480

问题 For a Java application, can I set the RenderingHints on a global basis? Currently, I've defined these in the paintComponent method as shown below. I would prefer, however, to set them once when the application starts and have them persist throughout the session. @Override protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2d = (Graphics2D) g; g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g2d.setRenderingHint

问题 I'm creating an Android app in Android Studio. When I open the layout editor, I see that gray "popup window" on top of the layout, which says that it Couldn't resolve resource @style/Widget.Holo.Light.ActionMode.Inverse. This happens when I change the "rendering version" to API 15 ( Android 4.0.3 ). It worked a minute ago, but when I switched back to the layout, I just got this error. Edit: I use the AppCompat library. The theme is defined like this <style name="AppTheme" parent="Base.Theme

问题 I'm creating an Android app in Android Studio. When I open the layout editor, I see that gray "popup window" on top of the layout, which says that it Couldn't resolve resource @style/Widget.Holo.Light.ActionMode.Inverse. This happens when I change the "rendering version" to API 15 ( Android 4.0.3 ). It worked a minute ago, but when I switched back to the layout, I just got this error. Edit: I use the AppCompat library. The theme is defined like this <style name="AppTheme" parent="Base.Theme

问题 I've been away from Rails for a while now, so maybe I'm missing something simple. How can you accomplish this: <%= yield_or :sidebar do %> some default content <% end %> Or even: <%= yield_or_render :sidebar, 'path/to/default/sidebar' %> In the first case, I'm trying: def yield_or(content, &block) content_for?(content) ? yield(content) : yield end But that throws a 'no block given' error. In the second case: def yield_or_render(content, template) content_for?(content) ? yield(content) :

问题 I'm using a image inside the HMTL code like here below: <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Test</title> </head> <body> <svg height="291pt" version="1.1" viewBox="0 0 291 291" width="291pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <defs> <style type="text/css">*{stroke-linecap:butt;stroke-linejoin:round;} </style> </defs> <g id="figure_1"> <g id="patch_1"> <path d="M 0 291.4 L 291.4 291.4 L 291.4 0 L 0 0 z" style="fill:none;"><