android-databinding

问题 I have implemented recycler view with data binding using a baseadapter which handles all the binding of any layout item. I have tried to implement per item click listener using method reference and Listener bindings, but I couldn't do that. Here is my code. Can you give me a sample which is the simple way to detect every single item of the recycler view and I want to add click listener for every single item for different purposes. Thanks. MyBaseAdapter public abstract class MyBaseAdapter

问题 I am currently stuck on an error that continues to slow down the performance of my application. The error does not cause the application to close or crash, or to write an exception to the console. The console simply reports this message: E/iardini.error0: Invalid ID 0x00000001. The only things that emerge from the message are: It's an error, you understand from the prefix "E/" The error is within my app, "iardini.error0" Didn't recognize some kind of id How replicate the error: I've made a

问题 My EditText is like this: <EditText android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="2" android:text="@={viewModel.isAddCase? ``: `` + viewModel.currentStudent.age}" //problem here android:inputType="number" /> I want the EditText not to show anything (empty String) based on the isAddCase variable, which is a MutableLiveData<Boolean> initilized when the ViewModel class object is created (inside the init{} block). This is the error I got: The expression '(

问题 My EditText is like this: <EditText android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="2" android:text="@={viewModel.isAddCase? ``: `` + viewModel.currentStudent.age}" //problem here android:inputType="number" /> I want the EditText not to show anything (empty String) based on the isAddCase variable, which is a MutableLiveData<Boolean> initilized when the ViewModel class object is created (inside the init{} block). This is the error I got: The expression '(

问题 I have a Model that contains some data, and a field that can have one of three (enum) values. Socket, Tcp, Udp And a View that shows some details. The details that I want shown in the view differ according to the value of this property in the model. I have read all about ItemTemplates for Lists and Pickers, and I want to do something similar but just with a single view bound to a single property. If Socket => Show this view else => Show this other view. Both views have the same viewmodel.

问题 I have a Model that contains some data, and a field that can have one of three (enum) values. Socket, Tcp, Udp And a View that shows some details. The details that I want shown in the view differ according to the value of this property in the model. I have read all about ItemTemplates for Lists and Pickers, and I want to do something similar but just with a single view bound to a single property. If Socket => Show this view else => Show this other view. Both views have the same viewmodel.

问题 I have extension function in app module @BindingAdapter("imageSrc") fun setImageUrl(view: ImageView, userId: Int) { try { val drawableRes = when { userId % 6 == 0 -> { R.drawable.avatar_1_raster } userId % 6 == 1 -> { R.drawable.avatar_2_raster } userId % 6 == 2 -> { R.drawable.avatar_3_raster } userId % 6 == 3 -> { R.drawable.avatar_4_raster } userId % 6 == 4 -> { R.drawable.avatar_5_raster } else -> { R.drawable.avatar_6_raster } } val requestOptions = RequestOptions() requestOptions

问题 I'm using data binding in my android project, also i'm using dagger 2 for DI . basically for setting content view with data binding i need to do something like this : LayoutClass layoutClass = DataBindingUtil.setContentView(Activity, Layout); I'm providing that layoutClass in dagger module and injecting it to my activity. the question is, is this a good practice ? 回答1: Technically you're defining a circle-reference with this. You're just not warned, because setting up the graph requires you

问题 I'm using data binding in my android project, also i'm using dagger 2 for DI . basically for setting content view with data binding i need to do something like this : LayoutClass layoutClass = DataBindingUtil.setContentView(Activity, Layout); I'm providing that layoutClass in dagger module and injecting it to my activity. the question is, is this a good practice ? 回答1: Technically you're defining a circle-reference with this. You're just not warned, because setting up the graph requires you

来源： https://stackoverflow.com/questions/64185390/kotlin-tostring-not-available-in-android-databinding