Develop Reference

Can't Debug Android Application on my Phone

Recently I tried to debug an application on my phone but I found this error :
Installation did not succeed.
The application could not be installed: INSTALL_FAILED_USER_RESTRICTED
I tried the following :
Disable USB Debugging and Re-Enable it.
Disable MIUI Optimization and Re-Enable it.
Restart my phone.
The Problem still exists. I need some help.
Thanks in Advance !

Please check all this configuration in your device before you run your app into your physical android device
Enable Unknown sources toggle in settings so it will allow you to install apk which are not downloaded from google playstore
Enable USB Debugging toggle in settings which will allow you to install and debug by USB
once done unplug device and plug again so it may ask you for sha key confirmation which you need to confirm on plugin device
after that try to run app on your device , which will show you small dialog with timer of 10 seconds to allow to install .. if you miss it then it will automatically reject and show you error that you are facing

Permission Denial: runUninstall from pm command asks to run as user -1 but is calling from user 0;

I'm just upgrade my Android device (Samsung J7Pro) to 9.0 (Pie) and when I want to run any application from Android Studio I face to this problem that says:
Permission Denial: runUninstall from pm command asks to run as user -1
but is calling from user 0; this requires
android.permission.INTERACT_ACROSS_USERS_FULL.
I have tried to add
INTERACT_ACROSS_USERS_FULL
to my AndroidManifest.xml but get the same error.
Any help?

I have found the solution
First turn off the developers option
Restart your device
Turn on again your developers option and turn on Usb Debugging

For the solution you have to try two things
try to add the this permission in your android manifest file.
uses-permission android:name="android.permission.FORCE_STOP_PACKAGES"
run the app and it will work
if the above work didn't help try the following step:
Uninstall the app.
Disable the Developer option from setting
Restart the Device
Enable the Developer option from setting-->About phone-->Software Information and click seven time on Build Number.
Now from Developer option(Below About Phone) Enable Use Debugging.
Run the app and i believe it should work.

How do I install an APK file using Android Studio?

I have an APK file and my developer assistant said to use it to install the app onto my phone, question is, how can I do it? Just click run? I think I tried it and it's not working, only the workshop files were editable ones and could run.

if you have ADB (android debugger) installed and set as environment path:
1st option:
i'd use that from cmd line. First you have to setup unknown sources from Settings menu and enable developer mode, and then trust USB Debug Options from your device. Go to system and you have to tap the version number a few times, you can google this. (That's how it used to be).
From Mac/Windows/Linux:
type:
To see if it's in path it should give you help:
adb
To enumerate devices connected via USB
adb devices
To install apk on your local machine to device (force install)
adb install -r ~/Desktop/some.apk
Or in Windows you can put your full path (force install)
adb install -r c:\Users\something\Desktop\some.apk
2nd option:
You can put APK on google drive, or some website you can access, even one drive or via email, then you can save it onto your device. Using ES File Manager, or some files manipulation tool, you can install it directly from there.
3rd option:
Use Google Play Beta or Alpha delivery methods. You can do a closed or open beta, and post it up there. That way all you need is a play.google link and then you will be able to install it, and manage updates via this method. I use this as I test alpha/beta APK Android Game deployment, and am able to distribute a URL (for open beta/alpha), and users can easily test it via this method. Amazon App Store and iTunes App Connect (iOS) has similar type options, too, but I'm just assuming you would distribute this App/Game via Play.
Remember if it's unsigned apk, you need to be able to enable side-loaded apks via your settings, app sources. If it's signed by a trusted developer then this shouldn't be a problem.

If you have an APK file you don’t need android studio.
Copy the file to the device you want to run it on and open it. You’ll be promoted to either enable developer mode or trust the app as a one off occasion.
You’ll then be given the option to install the app.

First you need to turn on "download from other sources" or something(I can not remember the option exactly) from your phone's setting. You can upload the apk file to google drive. And navigate to the directory use you phone, click and download file. And then you should be able to run and install the app to your phone.

Try PdaNet+.
It will easily install android studio application to your android mobile.
Download PdaNet+ for PC.
In mobile open Debugging.For Debugging go to Settings -> About phone -> SoftwareInfo -> Build Number -> Click 7 to 8 times on Build Number.It will open Developer Option.Go back to Setting there you see Developer option.Then in Developer Option search for USB Debugging and open it.Then connect your mobile to PC with USB.
Insatll PdaNet+ it ask to connect mobile,connect it with USB it will download mobile software.
After completing your program,in Android studio click on 'Run App' (Green symbol as Play Button) then it will show your Android Mobile in Connected Device.Then it will install Android Studio application to your mobile.

Can't delete self-programmed app

Recently I bought a new computer and installed Android Studio on it. I transferred all te files necessary from my old computer so I could continue my work on my app.The code was built and ready to upload to my device, but I got the message ' INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES', and Android Studio advised me to uninstall my app from my phone and try again.Whe I tried this, I noticed the 'delete' button was greyed out, and in Settings -> Apps -> TestApp (name of my app) I noticed the buttons for 'Force quit', 'Move to SD-card', and 'Clear Cache' were all greyed out.Is there anything I can do to make my phone delete my app, and to enable these functions in the future?EDIT: after running adb uninstall mypackagename I got the result Failure [DELETE_FAILED_DEVICE_POLICY_MANAGER]. My app uses the Device Policy Manager for locking and unlocking the phone.
SOLVED: After looking up the error code, I found the solution here at StackOverflow.
Thank you very much everyone!

Try this command from adb, after connecting your phone to pc in usb debugging mode
adb uninstall yourapppackagename
Package name you can see from the app info in the phone or packageid from your app gradle file

After running adb uninstall mypackagename like Umar Hussain pointed out, I got the result Failure [DELETE_FAILED_DEVICE_POLICY_MANAGER]. My app uses the Device Policy Manager for locking and unlocking the phone.
After looking up the error code, I found the solution here at StackOverflow.

Genymotion: Installation failed with message INSTALL_FAILED_VERIFICATION_FAILURE.

I am running my app on Genymotion emulator, but from past 2-3 days it is showing
Installation failed with message INSTALL_FAILED_VERIFICATION_FAILURE.
It is possible that this issue is resolved by uninstalling an existing version of the apk if it is present, and then re-installing. error.
I don't know what is problem.
Thanks

Here is an explanation of the problem from the Genymotion team and how to solve it quickly.
One of the steps of the Android application installation is the application verification.
This step is a security feature that prevents applications including malware to be installed.
This step is only activated when Google Play Services are installed.
For safe apps, the application should be installed without any problem.
However, since the latest version of Google Play Services, the verifier rejects all application installation, even safe ones.
We are actively working on a solution for this problem. In the meantime, please use the following workaround to disable the verification:
If not already done, enable the developer settings by clicking several times on Build number in the About phone section of Settings
Go to the developer settings
If not already done, enable USB debugging
Disable verify apps over USB
Try again to install your application

the same error is fixed by this steep
1,Enable Developer settings :
Open Settings > ( settings of genemotion emulator or nox ).
Click 5 times on Build number.
Navigate to Developer settings.
2 Enable USB debugging.
3 Disable Verify apps over USB.

This is what I have done. Just turn on USB debugging in developer option in genemotion emulator just like you do in your phone.Removes safety check. It works.

This happened to me today after I've been doing USB debugging for months. My issue ended up being the fact that the device was in airplane mode which caused the verification to fail. When I turned the network on again it worked.

after done all step in Previous post , do this
Genymotion -> Settings -> Security -> check 'Unknown Source'