preview

问题 I want to show image preview before uploading process. In my case I selected multiple images with input file and the list of file name will show as link. When I click on the image file name link then the preview image popup will show of it's specific image. Here is my code.. <input id="uploadBtn" type="file" class="upload" multiple="multiple" name="browsefile" style="display: none !important;"/> <input type="button" value="ファイル追加" onclick="document.getElementById('uploadBtn').click();" style=

问题 We know that we will get a lager field of preview at the same distance when camera preview ratio set to 4:3 instead of 16:9 , the detail is as follows: Android Camera API - Weird zoom effect But I encountered a problem when I worked with android camera preview with opengl, that is the second way mentioned below. There are 2 ways of implementing camera preview: Traditional way without opengl, just use Camera.setPreviewTexture(SurfaceTexture texture) or Camera.setPreviewDisplay(SurfaceHolder

问题 I use asp.net core 2 Preview 2. I opened stdoutLogEnabled = "true" in web.config but the system does not write logs. Deploying on windows server 2012 r2 gives : Error HTTP Error 502.5 - Process Failure. Web.config <aspNetCore processPath="dotnet" arguments=".\App.WebHost.dll" stdoutLogEnabled="true" stdoutLogFile=".\logs\stdout" forwardWindowsAuthToken="false" /> Logs Please help me. 回答1: I had this same problem, even after installing the hosting bundle. The solution was in the documentation

问题 So I have a problem with android studio. Mine "preview" is just a blank screen without content,that i actually added. When i run it on avd,i can see this button,and text view,unfortunetly the preview screen is still blank. I don't have any extra libraries,i reinstaled android studio couple of times and just created like ten new project - every case is ending same. How it's look actually - https://imgur.com/a/OX3JNLk 回答1: Update the build.gradle file so the "compileSdkVersion" and

问题 I'm using twitter bootstrap tabbable: http://twitter.github.com/bootstrap/components.html#tab3 and I would like to know, how can I replicate the preview effect when a user open a new issue on github and press on preview tab. I want preview the actual item before post this item. You can see for example: https://github.com/samwillis/pagedown-bootstrap/issues/new You can click on preview and preview your issue. I would like if exist some plugin or library to make this feature with jquery, or

问题 Does anyone have an example of buddy classes in ASP.NET MVC 2 Preview 1? I can't seem to find anything on the MSDN about it but according to ScottGu they've added functionality for it in the most recent release. 回答1: I believe what you're looking for is MetadataTypeAttribute. This isn't something that's specific to MVC but it part of the DataAnnotations namespace introduced in 3.5. It allows you to decorate members of a partial class external to the class itself. For instance, if you had a

问题 So, I need to overlay the camera2 preview and draw a rectangle on the preview video image by layering a transparent overlay on top. I started with a basic Camera2 code here: https://github.com/googlesamples/android-Camera2Basic the above use TextureView for camera preview. Next, I added the following class to project private class CustomView extends SurfaceView { private final Paint paint; private final SurfaceHolder mHolder; private final Context context; public CustomView

问题 The behavior described here appears to now be the default for ASP.NET MVC 2 (at least for Preview 1). When modelbinding a querystring like this : ?Foo=&Bar=cat The following binding occurs (assuming you're binding to a model with 'Foo' and 'Bar' string properties) ASP.NET MVC 1 model.Foo = ""; model.Bar = "cat": ASP.NET MVC 2 (preview 1 through RC) model.Foo = null; model.Bar = "cat": Wanted to give anyone who is playing with V2 a heads up since this wasn't mentioned in the 'gu-notes'. Also

问题 Now on Android Studio 2.2 on new Preview mode, there are no more refresh button : Image 1: Preview on Android Studio 2.2 (without refresh button) Image 2: Preview on Android Studio 2.1 (with refresh button) Does anyone know how to display it again? Or with shortcut maybe? Edit: If I change a drawable by example and that the change does not appear in the layout, the only method that works for me is closed and restart the project. If I close the layout and as I re-opens nothing happens. Same

问题 Does apple allows me to change the wallpaper of the iphone from my application? 回答1: The public iOS 4.0 API so far does not allow changing any of the iPhone wallpapers programmatically. Undocumented APIs are not supported by Apple, so no, I don't think they would allow it. However, technically it should be possible to do so. 回答2: Nope, no public APIs for it even with the latest SDK. You need to ask the user to save your image as a wallpaper manually. 来源： https://stackoverflow.com/questions