I wonder if we can launch the FGallery component at a given start point.
https://github.com/gdavis/FGallery-iPhone
I tried to use the loadFullsizeImageWithIndex: method used by the thumbnails grid but... fail.
Anyone did that ?
Thanks a lot !
If you mean the image the controller starts with, try
gallery.startingIndex = 1; // or whatever number
Related
Is anyone know why UE4.26.2 ARkit for some devices will always keeps black?
I use the Default AR project to test it, for some device with project build from UE4.26.2, the Camera will keeps black, but it can actually detect& tracking the plane, just can't display.
Same project build from UE4.25 for same devices, all works good, is anyone know why this happened?
I'm going to check the source code about the Apple ARKit.
Any hint will be appreciated, thanks in advances!
I finally figure it out with the UE4.26.2 source engine, there are two steps:
Copy the ARkitCameraMaterial from UE4.25 to AppleARKit content folder
Inside "AppleARKitVideoOVerlay.cpp", change the OverlayMaterialPath to the path that "ARKitCameraMaterial" located, then it works on my case
By the way, don't change & re-apply this material, cause there is a function depreciated by UE4.26, but this way takes some time cause need build the source engine, hope it can help you guys!
I'm learning to use the split view in an app. I am asking the table to reload the data every time I add new things. My code and settings are seem fine. But not work on iPhone. After I ask someone and he told me to try on an iPad device, it works.
Finally, I find out where the problem is, but I don't know how to fix it. I added a line that prints the size of splitView.viewControllers. The iPad simulator returns 2, which is what I am expecting. But it returns 1 without any changes in the iPhone device. So, what's wrong with it, and how may I solve it? Thank you very much.
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Im making an app using Xcode5 and i want to have the background image (or Image View) of one of my View Controllers change between a set of images based on the local time
pretty much have a certain image show between
0600am - 1159am image1
1200pm - 1759pm image2
1800pm - 2359pm image3
0000am - 0559am image4.
Its my first time coding and i cant find anything on this matter so if someone can help me or walk me through it I would really appreciate it!
Thanks
Use something like this: How to Check if an NSDate occurs between two other NSDates to check your date ranges then call a method based on the results to change your background image to the correct one. Post some code if you are having trouble.
Im trying to make an app for planning out where you want to put "shelves" on a wall (sounds strange i know ;) )
i have got it so the image is picked from the UIImagePickerController then loaded in a new ViewController i also have a button at the bottom of the ViewController that i want to open a list of images to select from that once selected the user can move around then stretch the required size if they don't like, delete and once they are happy i want my second button to save the image and put it into an email ready for sending.
I have looked at a few ways but none of them seem to be "adequate" would be so grateful anyone could suggest any ways or even help me with some code, I'm very new to this and this is my first app.
Im not too sure on the code you'd need to see as none of what is written yet is relevant to this part of the app
This is a 2 part so the first is, what way do i go about it?, the second is what code?
Thanks
-(UIImage *)GetStreachableImage
{
UIImage *takephotoButtonImagenormal = [UIImage imageNamed:CHOOSE_TAKE_NORMAL_IMAGE];
UIImage *strechableButtonImageNormal1 = [takephotoButtonImagenormal stretchableImageWithLeftCapWidth:takephotoButtonImagenormal.size.width/2 topCapHeight:takephotoButtonImagenormal.size.height/2];
takephotoButtonImagenormal=nil;
return strechableButtonImageNormal1;
}
try this
I have a bit of a problem setting up my DirectX10 (Win32/c++) application for fullscreen mode. The problem is that I want to have my app running in fullscreen right from the start. This can be done by taking the DXGISwapChain::SetFullScreenState function. This works, but i get a small notice in my Visualc++ 2008 debugger which states:
"DXGI Warning: IDXGISwapChain::Present: Fullscreen presentation inefficiencies incurred due to application not using IDXGISwapChain::ResizeBuffers appropriately, specifying a DXGI_MODE_DESC not available in IDXGIOutput::GetDisplayModeList, or not using DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH."
What this means is that DirectX will not take full ownership of the graphicscard and flip the images from front to backbuffer but instead blit them which is much slower.
Now, i do have the DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH enabled and i did try to resize my buffers but i have absolutely no idea what would be the best way to go into fullscreen mode. I have looked on MSDN but there they mostly assume you will only go into Fullscreen by pressing Alt+Enter which lest DXGI do all the work. If someone please could post a bit of code which takes DirectX10 into fullscreen mode and takes full advantage of the "flipping" it would be greatly appriciated!
For anybody interested in the code used on resize:
ReleaseCOM(m_pD3DRenderTargetView);
ReleaseCOM(m_pD3DDepthStencilView);
ReleaseCOM(m_pD3DDepthStencilBuffer);
DXGI_MODE_DESC* mod = new DXGI_MODE_DESC;
mod->Format = DXGI_FORMAT_R8G8B8A8_UNORM;
mod->Height = m_ScreenHeight;
mod->Width = m_ScreenWidth;
mod->RefreshRate.Denominator = 0;
mod->RefreshRate.Numerator = 0;
mod->ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
mod->Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
delete mod; mod = 0;
m_pSwapChain->ResizeTarget(mod);
HR(m_pSwapChain->ResizeBuffers(1, m_ScreenWidth, m_ScreenHeight, DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH))
throw(Exception(GET_BUFFER_FAIL, AT));
//problem area
m_pSwapChain->SetFullscreenState(TRUE, NULL);
ID3D10Texture2D* pBackBuffer;
HR( m_pSwapChain->GetBuffer(0, __uuidof(ID3D10Texture2D), (LPVOID*)&pBackBuffer))
throw(Exception(GET_BUFFER_FAIL, AT)); //continues as usual
Is there any reason you delete your mode desc?
Have you also tried putting your mode desc through "FindClosestMatchingMode"?
Check out http://msdn.microsoft.com/en-us/library/cc627095(VS.85).aspx The "Full-Screen issues" section contains a lot of useful information.
There are some prerequisites for enabling flipping in DXGI (which is the most efficient fullscreen presentation mode):
1) You should go into fullscreen state specifying a mode that exists in the system (you could do that either by using mode from IDXGIOutput::GetDisplayModeList or finding it using IDXGIOutput::FindClosestMatchingMode). Your code just specifies screen resolution, so most likely mode is set correctly.
2) After SetFullscreenState, you should call ResizeBuffers with the right buffer size matching mode, this is where DXGI would setup flipping mode.
Typically, it should happen naturally as reaction to WM_SIZE message send by SetFullscreenState transition, so if your app doesn't call ResizeBuffers on WM_SIZE, it probably should.
You can call ResizeBuffers manually after SetFullscreenState and that should work as well.
And yeah, MSDN has a good article about DXGI practices, including fullscreen transition:
http://msdn.microsoft.com/en-us/library/cc627095(VS.85).aspx#Full_Screen_Issues