screen

问题 This is a question that's been bugging me for some time now: In photoshop/GIMP, there is a "screen" layer composition mode. This mode has bright colours have a strong alpha, and dark colours a weak one. Black is entirely transparent, white entirely opaque. I would dearly love to be able to replicate this composite using Java 2D graphics, but my repeated attempts at trying to coax AlphaComposite into this have failed - and indeed I think this is outside of AlphaComposite's capabilities. A

问题 My device configuration is large-mdpi. But in my app, i have the images only for small-ldpi,normal-mdpi . Here how to findout the best match for this. i think i collects the images from the small-ldpi because our precedence contains small as first.please see this link. is it right? please can anybody help me. thanks. 回答1: Don't put size qualifiers on your drawable folders. Just make drawable-ldpi and drawable-mdpi. Edit: Maybe I answered too quickly. Do you actually have different images for

问题 I have several devices (smartphones and tablets)... but some of them have the value "scaledDensity" set in 1.5 (You can get this value using the DisplayMetrics class). This is a nuisance because all the fonts in my app on that devices are being scaled up by 50%... (All my fonts use "sp"). In fact, all the fonts in the device are scaled up... Well... the questions are: Why a manufacturer would want to do that thing... ? How can I set my fonts to use a scaled density of 1.0? Thanks!!! 来源： https

问题 I have a c# windows application that work with multimonitors. The application has a main form that must be showed in the primary display and a full screen form that needs to be displayed on the second screen (this second form is showed in a 3d goggles). This is my way to assign the screens: Screen.AllScreens[0] for first screen and Screen.AllScreens[1] for secondary screen but i'm having problems with a new version of the 3d goggles because this are HDMI and even if i set the main screen to

问题 please refer image below : I want to start app 'directly' on "VIEW 1" screen or "VIEW 2" screen, without visual appearance of "START" screen which decide VIEW screen to display. Eg. in loadView() of STARTviewcontroller.m if (some condition) { call "VIEW 1" screen } else { call "VIEW 2" screen } Is this best way to do it ? what should i use segue / [self presentViewController: ...] ?? 回答1: Do one thing. Set " View1 " controller as initial view controller in your storyboard. Now And in your

问题 Thanks in advance for your help. I am wondering how I might go about accessing the screen resolutions available on a user's PC. I would like to get a list of all available resolutions and also determine what the user is current running at. 回答1: I believe you can make a PInvoke call to EnumDisplaySettings api call in User32.dll. [DllImport("user32.dll")] public static extern bool EnumDisplaySettings (string deviceName, int modeNum, ref DEVMODE devMode ); See example here. You'll of course run

问题 I need to make an app that keeps the screen on even when the app is running in the background. I've tried: getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); But it only works when the app is running and can't run as a service. I've also tried wakelocks but SCREEN_BRIGHT_WAKE_LOCK and FULL_WAKE_LOCK have both been deprecated. The only wakelock left is PARTIAL_WAKE_LOCK. Is there someway to keep the screen on using the PARTIAL_WAKE_LOCK, ACQUIRE_CAUSES_WAKEUP, and some loops

问题 I'm making a game with a board and an object that travels around the board. At this point, I have been using absolute layout and setting the board to the size I want and the object to the position on the board that I want. I understand, however, that this is not the best way to write these apps. How can I make my app suitable for all smartphones still having the flexibility of making the board the size I want and putting an object exactly where I want on the board? Should I make separate xml

问题 I want to get the color of pixels on the screen in Python3.x. (example x,y) I work on windows. and using tkinter. But, It can't use PIL in Python 3.x. How can i do this. Thank you. 回答1: You can use PIL on Python3.x; there is a binary installer for Windows. The code might not work as is both on Python2.x and Python3.x: try: import Image # Python 2.x except ImportError: from PIL import Image # Python 3.x You could capture an area of the screen using an analog of grab() method. 来源： https:/

问题 I have 2 monitors and I need to save form position and it should show on screen where it was closed. Can someone suggest how to get screen on which it is, and on form load show it on screen where form was closed? The settings I save in registry. 回答1: The simplest way is to call the GetWindowPlacement function. That returns a WINDOWPLACEMENT structure that contains information about the window's on-screen coordinates. Using this function instead of the Form.Location property solves the