Cant run OpenCV android app on my divice - android

I'm making an app using android and opencv.
When I run the app on lg g3 opencv is work,
but when I run on galaxy s7 I get the message "opencv was not initialised correctly Application will be shut down" :(
Can someone help please?
compileSdkVersion 24
buildToolsVersion "22.0.1"
defaultConfig {
minSdkVersion 15
targetSdkVersion 24
versionCode 2411
versionName "2.4.11"
}
opencv version-3.1
enter image description here

did you install OpenCV Manager on your device?
https://play.google.com/store/apps/details?id=org.opencv.engine&hl=en

check your permissions, does the app require camera use? see what the logcat says on the monitor when you try to run the app.

Related

Unable to install app to device specified with targetSdkVersion:Tiramisu - Android

I am currently doing some testing on Android 13 Tiramisu and am having trouble getting the app to install on my device.
I have installed Android Tiramisu Preview (Rev.4) in Android Studio.
I created a sample app and configured it as follows
// build.gradle
android {
compileSdkPreview "android-Tiramisu"
defaultConfig {
applicationId "com.example.myapplication"
minSdk 16
targetSdkPreview "Tiramisu"
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
...
I then tried to install this app on my Android 12 (not Tiramisu) device.
When I did so, I got the following error
Installation did not succeed.
The application could not be installed: INSTALL_FAILED_OLDER_SDK
List of apks:
[0] '/Users/myuser/dev/sample/MyApplication/app/build/outputs/apk/debug/app-debug.apk'
The application's minSdkVersion is newer than the device API level.
In build.gradle, I have specified minSdk 16, so it should be possible to install the app on an Android 12 device.
How can I solve this problem?
(This problem did not occur when targetSdkVersion was set to anything other than Tiramisu)
This is working as intended: targeting / compile with a pre-release version of Android will only work on pre-release device, before SDK is final. The error returned could be clearer, as it is misleading right now.

Android Studio doesn't get app is running on emulator or real device

I just installed Android Studio Arctic Fox (2020.3.1) Stable
i opened my project as usual and oponed the emulator to try the app but weirdly android studio doesn't get app is running on emulator, so i tried my real phone yet same result still gives me the green play button even when app is running on emulator, my previous android studio was 4.1.1 and everything was fine, tried to create new emulator device yet still same problem
emulator is pixel 4 XL android 9.0
android {
compileSdkVersion 30
buildToolsVersion "30.0.3"
defaultConfig {
applicationId "com.minidev99.euroimpianti"
minSdkVersion 24
targetSdkVersion 30
versionCode 1
versionName "1.0"
and evenLog show this:
bad sub-command
com.android.ddmlib.CommandFailedException: bad sub-command
at com.android.ddmlib.EmulatorConsole.processOutput(EmulatorConsole.java:424)
at com.android.ddmlib.EmulatorConsole.getOutput(EmulatorConsole.java:411)
at com.android.ddmlib.EmulatorConsole.getAvdPath(EmulatorConsole.java:402)
at com.android.ddmlib.internal.DeviceMonitor.setProperties(DeviceMonitor.java:296)
at com.android.ddmlib.internal.DeviceMonitor.updateDevices(DeviceMonitor.java:260)
at com.android.ddmlib.internal.DeviceMonitor.access$400(DeviceMonitor.java:56)
at com.android.ddmlib.internal.DeviceMonitor$DeviceListUpdateListener.deviceListUpdate(DeviceMonitor.java:326)
at com.android.ddmlib.internal.DeviceListMonitorTask.processIncomingDeviceData(DeviceListMonitorTask.java:195)
at com.android.ddmlib.internal.DeviceListMonitorTask.run(DeviceListMonitorTask.java:131)
at java.base/java.lang.Thread.run(Thread.java:834)

Linphone Audio calling not working in API LEVEL 26 android

I am trying to implement audio calling in android by using EasyLinphone SDK. It is working with targetSdkVersion 23 and higher target version it's not working. My app targetSdkVersion is 27 on play store so I can not downgrade it.
Please guide me to implement this feature in my app.
https://github.com/forever4313/EasyLinphone
I've checked & built the code with following attribute & it is working properly both for audio call & video call.
compileSdkVersion 28
minSdkVersion 21
targetSdkVersion 28
Kindly give Camera and Microphone permission (from app info) of your device settings. Hopefully It'll work.

Android Studio Emulator Upper Case B not typing

I'm using Android Studio 3.0.1 and building applications for SDK with following settings:
flavorDimensions "default"
compileSdkVersion 26
buildToolsVersion '26.0.2'
defaultConfig {
applicationId "com.logi3pl.wms.wmsmobile"
minSdkVersion 15
targetSdkVersion 26
versionCode 1
versionName "1.1.23"
testInstrumentationRunner
"android.support.test.runner.AndroidJUnitRunner"
}
After a recent update, none of my AVD emulators are accepting uppercase 'B' from keyboard. Lower case 'b' and all other chars are working upper/lower case. On-screen keyboard accepts uppercase 'B'.
Not only the software I am coding, but also google search bar and every other app on the device has the same problem.
Don't know even where to look at. Appreciate any help.
Thanks in advance
I have got the same problem, using Android Studio 3.01, Android 7.1.1 (emulated Pixel API 25).
I filed a report to Google.
Update:
They fixed it in Version 27.0.5
Just downloaded the newest update. The problem seems to be fixed.

Running Android App for all the android device

I am new to android and I have develop the app with 5.0.1 target. However, when I run the app in my mobile which has 4.4 version of android, it does not run the app that is due to version mismatch. My question is, in which version we can develop the android app which can run on all android device?
If you work on eclipse set in the AndroidManifest.xml the minSdkVersion to something below 20 (i recommend 15) and it will work also on your device:
<uses-sdk android:minSdkVersion="15"
android:targetSdkVersion="21"/>
Here you can find the sdk values for versions:
http://developer.android.com/guide/topics/manifest/uses-sdk-element.html
If you work on Android Studio go in your build.gradle file and set under defaultConfig your preferences on sdk:
defaultConfig {
applicationId "mybundleID"
minSdkVersion 15
targetSdkVersion 21
versionCode 1
versionName "1.0"
}
UPDATE
I read now that you wanted to support ALL android devices so you can put minSdkVersion equal to 1. But i think that this is the worst thing you can do! Putting the minSdkVersion you will not be able to use some method and some libraries. You have to support the majority of the devices for a good application. As i said values between 11 and 15 are the most used now!

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