ScreenSize | application calculates the screen sizes | iOS library

After upgrading to android 12, the application is not compiling. It shows

"Manifest merger failed with multiple errors, see logs"

Error showing in Merged manifest:

Merging Errors: Error: android:exported needs to be explicitly specified for . Apps targeting Android 12 and higher are required to specify an explicit value for android:exported when the corresponding component has an intent filter defined. See https://developer.android.com/guide/topics/manifest/activity-element#exported for details. main manifest (this file)

I have set all the activity with android:exported="false". But it is still showing this issue.

My manifest file:

I am trying to solve a problem without success and am hoping someone could help.

I have looked for similar posts but haven't been able to find anything which solves my problem.

My Scenario is as follows: I have a UIView on which a number of other UIViews can be placed. These can be moved, scaled and rotated using gesture recognisers (There is no issue here). The User is able to change the Aspect Ratio of the Main View (the Canvas) and my problem is trying to scale the content of the Canvas to fit into the new destination size.

There are a number of posts with a similar theme e.g:

calculate new size and location on a CGRect

How to create an image of specific size from UIView

But these don't address the changing of ratios multiple times.

My Approach:

When I change the aspect ratio of the canvas, I make use of AVFoundation to calculate an aspect fitted rectangle which the subviews of the canvas should fit:

I'm having an issue when i'm uploading app bundle to the play console that You uploaded an APK or Android App Bundle which has an activity, activity alias, service or broadcast receiver with intent filter, but without 'android:exported' property set. This file can't be installed on Android 12 or higher. but my manifest file includes the property.

Manifest file

I am trying to use the video_player, but I am getting the below error. I have also added an MRE (minimum reproducible example).

I have used an emulated Pixel 4, an emulated Pixel 4 XL, and an emulator Pixel 5 with the Android Studio Beta, but none of them worked.

The below error was when I was using a Pixel 4 XL, but the error was the same with all of them.

Error:

I am a beginner in flutter. I have update minSdkVersion from 19 to 21 and getting the following error. Please Please help. any kind of help is much appreciated. Thank you in advance.

I get the following Error message after migrating from FormsApplicationActivity to FormsAppCompatActivity:

Android.Views.InflateException: 'Binary XML file line #31 in com.myapp.app:layout/mtrl_calendar_month_labeled: Binary XML file line #18 in com.myapp.app:layout/mtrl_calendar_month: Error inflating class com.google.android.material.datepicker.MaterialCalendarGridView'

The error happens in the OnCreate at the first line base.OnCreate(savedInstanceState);

My mainactivity looks like this

I have a plot with double y axes using yyaxis. I want to set XTick to have only integer values, e.g., 1, 2, 3, 4, 5, 6, instead of 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6.

With normal plot, I can just use:

I have created 3 classes (code given below).

BasicDetails - base class - frame created here along with a panel GradeSubjectList - derived class - another panel created here and loaded in the frame created in the base class SubjectList - derived class - another panel created here and loaded in the frame created in the base class

Base class has a panel of its own and on click of the button loads the panel created in GradeSubjectList. A button created in this panel calls a function in base class which inturn loads the panel created in SubjectList in the frame created in the base class.

The panel created in BasicDetails and GradeSubjectList load with any issues, and when the panel created in SubjectList is being loaded in the frame created in the base class displays only in a blank frame

I want to read and write files in user storage in android < 10 that applied Scoped storage and for some reason, I cannot use the privacy-friendly storage access for that therefore I need to use All files access permission. For getting the permission I'm using the Permission Handler package and calling the Permission.manageExternalStorage.request() like the following: