Image won't load on lower android versions Xamarin Forms [closed] - xamarin

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i have a mainpage which has 4 local images and it works fine on android 10 and i tested it on several phones but when installed it on my mom's phone which has android 7 on it one of the images on the mainpage won't load. i cant really understand why. can anybody help me?

Take care also about the resolutions of the device. I had a rendering problem of background images which I put in the default drawable folder (problems at the Samsung S7).
Try to adapt the properties of the image based on the device resolutions.
https://developer.android.com/training/multiscreen/screendensities
So test if its Android version or device resolution problem.
Check the console output of the Android device by the Output Window of Visual Studio or the Android Device Monitor. Maybe you get a hint there!

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C# Working With FullScreen Project [closed]

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Hello I'm developing a fullscreen project in C# with VS 2017 PRO. But the problem is that I cant see the complete form in designer. Like when working with 1920*1080 project. Is there something like "CTRL + Mouse scroll down" ?
Thanks for any help.
The Visual Studio Windows Forms editor does not have any zoom functionality as it is pixel-based, not vector-based.
All you can do is go full-screen mode (SHIFT+ALT+ENTER) and/or use a display device with a higher resolution.
On the contrary, the WPF editor does have such a functionality as it is vector-based.

Xamarin forms bluetooth state change event [closed]

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In my Xamarin forms application I want to handle some functionality while bluetooth state change state. Is there any event which will fire when bluetooth is on/off. Please help me.
Xamarin Forms doesn't have the capacity built-in so you will need to use a 3rd party package or create your own native handlers for each platform and use dependency injection to access it from forms. Some good links to get you started are
https://forums.xamarin.com/discussion/15794/ble-bluetooth-low-energy-cross-platform-support
And this is an open source project with example code on interacting with Bluetooh on 2 platforms. Bluetooth and BLE are different with WP8 not supporting BLE but I believe UWP does, though thats only in preview.
https://github.com/xamarin/Monkey.Robotics/tree/master/Source/Platform%20Stacks

xCode Isntrument vs real device for producing crash? [closed]

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I want to know that testing in real device and the instrument is same? only for producing crash. that means the crash which produced in device will be produced in instruments also?
Note: ARC enabled projects
99% crashes happenning on devices will also happen on simulators (ie can be instrumented), that is, as long as you have covered all possible combinations of iOS version and device type - iPhone / iPad, and with exception of features not supported by simulators: phone call, location tracking, motions etc.
Testing on devices however is strongly recommended, not because of 1% crashes, but because the experience of user with a device is very different from that with a simulator. Examples: a tiny button can easily be clicked with a mouse / trackpad, but might not be accessible with a finger; element sizes / colors might feel different on a real device...

Copy and paste on any device [closed]

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I find myself most of the time needing to copy a piece of text or even a link from my mobile and paste later (when I get out of the bathroom) on my PC.
Do you have the same problem? What are you using to solve this?
Regards,
I use MyPhoneDesktop
for this. From their product description:
With myPhoneDesktop, you can send content quickly from your desktop to your iPhone. Whether you want to send a long Google Map URL to a friend, or some text to a business colleague, or a photo to iPhone, myPhoneDesktop makes it easy.
myPhoneDesktop makes your iPhone an extension of your desktop by making them work seamlessly together. If you can copy it, you can send it to the iPhone. Using the comfort of your Mac or PC full keyboard, you can send SMS messages, notes, or anything you can type. And in moments, it will be on your iPhone, iPad or iPod touch.
Just a satisfied user, not affiliated in any way.

Capture a video for screen activity in Windows phone 8 [closed]

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I am working on drawing app for windows phone 8.I want to capture video while I am drawing in screen is it possible? please give me any idea if u have, Actually it's possible in iOS I had worked on that but I was searching a lot in internet there is no help please let me give any idea how it will be possible.
Thanks
You could also use Expression Encoder 4 (http://www.microsoft.com/en-us/download/confirmation.aspx?id=27870) to screen capture the WP8 emulator and get a nice video out of it. You can define the screen area, clipping the emulator shell if you want.
Here is a couple of posts on how to do it:
http://blogs.msdn.com/b/mikeormond/archive/2010/09/27/windows-phone-7-screen-capture.aspx
http://richarddunbar.blogspot.co.uk/2013/01/a-cool-way-to-promote-your-app.html
Sadly nothing was released yet (at least nothing official).
Some stores offer a HDMI cable for Nokia Lumia 920, but as I heard, it is a scam. Some developers succeeded in this with a jailbroken device, but that is not really a good solution. Finally - you can certainly use the emulator and record the Window using some kind of screen capturing software, but that will sadly cause performance issues (the emulator causes some lagging of apps). That means either that, or wait until Microsoft solves this somehow...

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