How do I solve fultter app not installed in my device? - flutter

I'm getting a prompt on my mobile device asking if I want to install the app on my device. I give yes, then nothing happens! for the first time and the app never installed before
I tried to use the cmd to connect my mobile device , I tried to restart my device and I've done the same steps in my device setting again

Related

Is there a way to run flutter from vs code to a real device like iphone 11 pro? Working on windows

So i'm new at flutter and i want to run my app to my real device. Working on windows 10 with vs code. I want to do this because when i run my app with android emulators my pc starts going slow.
Thanks!
You can follow this tutorial if you want to run your application on an actual device with USB connection: https://www.youtube.com/watch?v=aohkII1C4JY&ab_channel=JohannesMilke
And also there is another way to run your app on an actual device which you can do it wirelessly: https://www.youtube.com/watch?v=BymD9pxtVwY&t=161s&ab_channel=AppMakingAcademy

Flutter App can't launching in iPhone without connecting to the computer?

I can build & launching app well in my iPhone when my phone is connecting to the macbook , and launching by the command line flutter run.
But when i disconnect my iPhone from the macbook . and I want to launch the app from the iPhone's desktop. the app seems can't launch , and will exit very soon.
Is there any way to launch flutter app from the iPhone's desktop?
This is happen because you are building iOS app in debug mode, run app in profile or release mode and it will fix.
Thanks for the #eamirho3ein's answer: change the debug to release fix the problem.
In fact, there is one thing to be metioned: the default config in xcode for command-line build is release already, but if you change this mode won't help. the mode needed to be change is the flutter run mode.
there are many ways to do this.

Android Emulator starts, but it doesn't run android system

I try to run my app in android emulator. From the begining, everythigs works fine. I create new device in Android Vrtual Device Manager, then i run the device. After a while i can see an emulator with mobile skin - that's all, nothing else happens. The device has black screen and in the Android Monitor I see this:
screen from Android Monitor
When i try to run my app I recive this:
screen from selecting deployment
When I try to run app from this window, somethig is going to happen. I have to wait long long time but finally, android is started on the device but meanwhile i recive error "Session 'app':Error Instaling APK. Sometimes app will run, sometimes not, but everything works very very slow. When i run app directly (without running device from AVD Manager), app is bulided and then i see a process "Waiting fro target device to come online", emulator runs but with black screen.
I have no idea what to do now. I reinstaled Android Studio twice - always the same result.
I have to add that a few days ago everythings works perfect - very fast and without problems. Recently I was installing Ubuntu on a new partition, I've done some changes in widows driver manager. Maybe this is a reason?
What I should do now? Thanks in advance

How to prevent launch Ionic app on emulator

I'm working on ionic App and I'm trying to run App on real Android device, But when I run ionic run android in terminal, I get the following error:
Running command: "C:\Program Files (x86)\nodejs\node.exe"
D:\wamp\www\pars-app\pars-app\hooks\after_prepare\010_add_platform_class.js
D:\wamp\www\pars-app\pars-app
add to body class: platform-android
ANDROID_HOME=D:\Sdk\android-sdk
JAVA_HOME=C:\Program Files\java\jdk1.8.0_45
No target specified, deploying to emulator
ERROR running one or more of the platforms: No emulator images (avds)
found.
1. Download desired System Image by running: "D:\Sdk\android-sdk\tools\android.bat" sdk
2. Create an AVD by running: "D:\Sdk\android-sdk\tools\android.bat" avd HINT: For a faster emulator, use an Intel System Image and install
the HAXM device driver
You may not have the required environment or OS to run this project
How to prevent run app on windows emulator? I want to run app on real device that conected to my computer.
I am using windows 8 and Huawei with Android 4.2.2
::note
I have read these questions, But I didn't got the answer!
Why not work Ionic app testing on android real device?
Ionic run android does not run app on device
ionic run android - configurations not running app on device
As a complement to #OClyde answer, you could try :
adb kill-server
adb start-server
To have infos about these commands :
adb --help
Nb : Sometimes, for a reason i do not know, the connection between my phone and the computer break. Running this fixes it.
To make sure that your app is not installed to an emulator but to your device, take the following steps:
Open up your console and run adb devices. This should give you a list of all devices available (real devices as well as running emulators) to the Android Debug Bridge. If the adb command is not recognized check that you have installed the Android SDK correctly and that you've set all the necessary environment variables accordingly.
The adb devices command might give you output similar to this:
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
This indicates that the ADB wasn't ready before, so in this case just try to un- and replug your device and run adb devices again to see if the device is listed afterwards.
If your device is still not showing, check that USB Debugging is enabled on your device. Therefore you first have to enable developer settings, which you can do by tapping the build number (Settings => About Phone) 7 times (no, that's not a joke ;) ). After that, you'll have the developer options in your settings menu. Open these and check "USB Debugging"
If still your device isn't recognized by the ADB, change the USB connection mode. You can either do this in the developer options as well or tap the notification shown when the phone is connected to your PC. Try MTP as well as PTP, on of those should do the job.
After these steps, it should be nearly impossible that the device is still not recognized by your PC. As soon as there is a phone available, Ionic will install the app on the phone automatically instead of launching an emulator.

Running Instagram on AVD

I wanted to use Instagram on my computer, so I decided to use an Android Virtual Device for that task.
I downloaded the Android SDK and the newest apk for instagram for my computer.
Then I created a new AVD and ran it. After it was booted, I installed the instagram apk using adb install instagram.apk.
It installed smoothly and after clicking the app, it started.
Now here's my problem: From there on nothing works.
When I try to login and I press the login button, nothing happens like there would be no internet connection.
Browsers and other apps using an internet connection work just fine, just instagram doesn't work.
How can I fix this?
I think it has something to do that the android Emulator can't really handle a global proxy.
Therefore hostnames get resolved directly to their IP which violates HTTP 1.1 standarts and the request doesn't get send properly.
To fix this, it is needed to change it so the hostname gets send instead of the IP.
You should try creating an AVD with different settings. More RAM and allowing GPU emulation is a good idea. If you insist on using an AVD and you have an appropriate intel CPU then you can make the emulator run much faster by following these steps. They are a bit complicated, but worth it if you want the emulator to run quicker.
I typically try to avoid using the Android emulator while I am developing apps. It has its uses, but it tends to be slow and doesn't have all of the capabilities of actual devices.
As an alternative to using an AVD, I would recommend downloading and installing BlueStacks. BluesStacks was written from the ground up to allow running Android apps on your Windows PC or Mac. I have used it before and it does a great job. Much better than an AVD.
Try visual studio emulator for android. Instagram works on it with enabled and connected wifi. This emulator works better than BlueStacks.