DragListView | reorder items in a list , grid or board for Android | Widget library

I am unable to use the sample code to write to a GATT characteristic over BLE. I'm using the following code from Polidea's examples available here: https://github.com/Polidea/RxAndroidBle

Code:

rxBleDevice.establishConnection(false) .flatMapSingle(rxBleConnection - > rxBleConnection.writeCharacteristic(characteristicUUID, bytesToWrite)) .subscribe( characteristicValue - > { // Characteristic value confirmed. }, throwable - > { // Handle an error here. } );

IDE Errors:

App Level Gradle:

Hi I am developing a sdk, and when I add these SDK into a app proyect I get the following error:

Manifest merger failed : Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91

I have ImageView, ListView and a ScrollView inside a FrameLayout. I want to show either list or the scrollview with textView depending on some conditions. The problem is that when there are few elements in the listView, the size of imageView is also reduced to the size of listView. I want ImageView to match_parent always.

Also I want imageView inside the same FrameLayout (container) as I set animation to container.

How to fix this?

I am facing an issue in Android studio

I have tried to update the recent build-tools version to 27.0.1 and SDK version to 28 but it throws the exception

Update:

I have mentioned the app level build.gradle file content below,

I've tried again and again to fix this problem, but none of the solutions proposed in the other questions worked for me. After merging my code with my teammates' code, I haven't been able to run my app due to this bug. I've cleaned and rebuilt my project multiple times, but the error still keeps coming up:

Error:Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'. java.lang.RuntimeException: java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex

I've tried fixing gradle warnings, updating gradle compile library statements, and putting this flag in my default config:

In my application I want to drag list item. In my list item I have text view and image. So for that I followed the bellow url

https://github.com/woxblom/DragListView

By using this sample, I changed my text view and image view then displayed my data. And drag and drop also working fine. But the issue is image will not change. But the image is moving along with text. So my point is after dropping the item text is changed image wont changed. So how to change image also.

This is the my activity:

I am using one 3rd party library by adding it in gradle dependencies. But unfortunately I am having some dex errors when creating the final build.(below image)

In gradlew app:dependancies command, I got the below hierarchy for the library.

First I thought, the issue might be for recycleView.So I tried by excluding the recycleView module from this library like:

I have multiple classes with different layouts which I call them Widgets in my app (this is a whole different thing from so called "Android Widgets"). I want to put instances of these classes beside each other in an activity called Dashboard. So users can change the place and settings of these widgets inside the dashboard and etc... .
I tried to use DragListView library, but the problem is each list mush have one layout AFAIK.
Any suggestions?