android-jetpack

问题 class SettingsViewModelFactory(application: Application, owner: SavedStateRegistryOwner) : SavedStateViewModelFactory(application, owner){ override fun <T : ViewModel?> create(modelClass: Class<T>): T { if (modelClass.isAssignableFrom(SettingsViewModel::class.java)){ return SettingsViewModel() as T } throw IllegalArgumentException("Invalid ViewModel class") } } I get a red underline below SavedStateViewModelFactory saying that the type is final and cannot be inherited from. What do I do? The

问题 I am trying to implement Jetpack Datastore in my project. I was using the apha-01 version and the code was working fine. Then I saw in the Gradle file that there is a new version so I updated it to alpha-03 . After starting my app, I encountered another issue. I found that Proto library is not found in the alpha-03 version so I rolled back to version alpha-01 . Also, I tried alpha-02 . Since then I am having the error below: Process: com.montymobile.sands, PID: 19928 java.io.IOException:

问题 Dependency injection inside BroadcastReceiver using Hilt isn't working. I try to invoke a BroadcastReceiver using an alarm from MainActivity and i am getting UninitializedPropertyAccessException . According to the documentation it should be as simple as adding the @AndroidEntryPoint annotation to the receiver but its not. Sample Code: App.kt: @HiltAndroidApp class App: Application() { override fun onCreate() { super.onCreate() Log.d(App::class.simpleName, "onCreate: Application") } }

问题 I try to capture an image using camera then the image result will be placed on my ImageView in a fragmentA like the code below, so it it NOT fetching an image path from Server then place it in ImageView using Glide Library, I take an image from camera. val image_uri = Uri.fromFile(photoFile) photoImageView.setImageURI(image_uri) and then, I move to next destination using this code (from fragmentA to fragmentB) val toFragmentB = AFragmentDirections.actionGlobalBFragment() findNavController()

问题 I try to capture an image using camera then the image result will be placed on my ImageView in a fragmentA like the code below, so it it NOT fetching an image path from Server then place it in ImageView using Glide Library, I take an image from camera. val image_uri = Uri.fromFile(photoFile) photoImageView.setImageURI(image_uri) and then, I move to next destination using this code (from fragmentA to fragmentB) val toFragmentB = AFragmentDirections.actionGlobalBFragment() findNavController()

问题 I try to capture an image using camera then the image result will be placed on my ImageView in a fragmentA like the code below, so it it NOT fetching an image path from Server then place it in ImageView using Glide Library, I take an image from camera. val image_uri = Uri.fromFile(photoFile) photoImageView.setImageURI(image_uri) and then, I move to next destination using this code (from fragmentA to fragmentB) val toFragmentB = AFragmentDirections.actionGlobalBFragment() findNavController()

问题 I try to capture an image using camera then the image result will be placed on my ImageView in a fragmentA like the code below, so it it NOT fetching an image path from Server then place it in ImageView using Glide Library, I take an image from camera. val image_uri = Uri.fromFile(photoFile) photoImageView.setImageURI(image_uri) and then, I move to next destination using this code (from fragmentA to fragmentB) val toFragmentB = AFragmentDirections.actionGlobalBFragment() findNavController()

问题 I try to capture an image using camera then the image result will be placed on my ImageView in a fragmentA like the code below, so it it NOT fetching an image path from Server then place it in ImageView using Glide Library, I take an image from camera. val image_uri = Uri.fromFile(photoFile) photoImageView.setImageURI(image_uri) and then, I move to next destination using this code (from fragmentA to fragmentB) val toFragmentB = AFragmentDirections.actionGlobalBFragment() findNavController()

问题 When I press one of the volume hardware buttons, Android's system is shown a depicted. Naturally this also happens when I press whithin my app. Is it possible to configure the style of these Android system stuff like volume? Or at least when I open these system stuff in my app? EDIT: As recommended in the comments, I've overwritten onKeyDown , but the adjustStreamVolume switches between 0 and 1 only. override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean { when (event?.keyCode) {

问题 When I press one of the volume hardware buttons, Android's system is shown a depicted. Naturally this also happens when I press whithin my app. Is it possible to configure the style of these Android system stuff like volume? Or at least when I open these system stuff in my app? EDIT: As recommended in the comments, I've overwritten onKeyDown , but the adjustStreamVolume switches between 0 and 1 only. override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean { when (event?.keyCode) {