I developed an Android app using Android Studio and it perfectly works on different devices. The apk was generated as signed.
I've tried to install it (through the apk file, using the package installer) on an LG K20 (Android 9) but I noticed an issue: the installation process ended successfully, but the app icon on the device screen wasn't created. So, I'm not able to execute it.
Moreover, if I connect the device on my laptop and I launch the app from Android Studio, the icon is not created.
On the other hand, if i install an app through the Play store, the icon app is created.
Is there any security option I have to disable in order to complete the icon creation?
I solved.
Actually, the app was installed and the icon was correctly created.
The positioning of icons on the device screen is a little bit confused: if you install apps from the Play store, icons will be placed in a view accessible scrolling horizontally; but if you install app from apk files, icons will be placed in a view accessible scrolling vertically.
I usually scroll the device view horizontally, so I couldn't see the icon app.
Related
I have developed a mobile application in ionic3 which appears and works fine on browser but when I connect it with emulator or install apk on android device, only black screen is displayed on application startup. Let me know the solution if anyone ever faced this problem.
I added myself as a tester for my Android app. Received and opened the email on my Android device. Got to this screen:
Clicked on "Download" and got this:
The problem now: The "INSTALL" button doesn't work, i.e., it's not clickable.
This was on Nexus 5X Android 7.0.
Make sure there aren't any apps drawing to the screen like screen dimming apps (see: https://android.stackexchange.com/questions/69981/why-cant-i-press-the-install-button-when-installing-applications-from-unknown-s).
With some effort I finally managed to install Qt for Android and wrote my first testing app. Everything went ok when debugging(usb debugging on galaxy s5) but after deploying the app via "Bundle Qt libraries in APK" and installing+running it on the phone I encountered a problem.
The design of the app changes after the first time run. The left screenshot is how the app looks after installing and tapping 'Open'; the right one is made after closing the app via the back button and opening it again from the app drawer:
(The add button in the first image is blue because it was in focus)
As you can see, the slider(QSlider) theme changes, and the 'Add' button also gets smaller.
I've also built and deployed the app with the x86 kit(instead of armeabi-v7a) and installed it on Genymotion Nexus 5 emulator, getting the same strange behaviour.
Doing a routine update to an app and decided to update the launcher icon as I have done many times before. However, I'm getting a very strange bug which I had once before but can't remember how I resolved.
I have the right sized icons in each drawable folder and in the manifest the name is correct:
android:icon="#drawable/ic_launcher"
When I try to update the app the old icon remains, on a fresh installation the default launcher icon shows.
I've tried:
Cleaning the project
Restarting Eclipse
Restarting my computer
Restarting the device
A different device
Adding a new set of icons using the Android Icon Set function
Adding a new set using a different filename and changing the name in the manifest
One stange thing that is worth pointing out, if I delete the file ic_launcher.png from a drawable folder, then rename another file to that filename I get this error:
This shouldn't show as the file doesn't exist. This error then shows if I click continue:
Any ideas?
EDIT:
It appears this issue is even more complex than I thought. If I install an app on the emulator the icon appears just fine, on a device it doesn't. If I install the app onto physical devices from the apk, on one device the icon appears and on the other the Package installer crashes!
It seem this is caused by a bug in newer versions of Android. The icons are indeed included in the apk and upload just fine to Play, however it takes a reboot to get them to be shown on my devices (I was wrong above where I said a reboot doesn't work). This means I need to reboot the devices each time I try and new icon, not the end of the world but certainly frustrating.
This problem exists on two different apps I have been working on and two different Nexus devices, I think since they were updated to 5.0.
I have developed an android application whose first version is already available on Google play.
Now my problem is, when I installed first version of my app on any android device (Samsung galaxy SII, LG Optimus), it works fine for me.
I have created shortcut of my app on home screen and have moved my app from phone memory to SDCard.
Then I have install new version of the same app on my phone and tried to open it from the shortcut that I have created on home screen.
But app is not opening from that shortcut and giving me an error message that "application is not installed on your device".
Does anybody have any idea why this happening?
Haven't you declared one of your activities or permissions twice by accident? You might have declared you launcher activity again somewhere in the Manifest.