jakubkinst

ktools

Kotlin Tools for Android ViewModel, LiveData, Data Binding, Dependency injection, Async operations, Repository pattern, Retrofit, Form Validation, Cloud Firestore, etc.

jakubkinst

package com.uncommon.model.smartlock

import android.app.Activity
import android.content.Intent
import android.content.IntentSender
import com.google.android.gms.auth.api.credentials.Credential
import com.google.android.gms.auth.api.credentials.CredentialPickerConfig
import com.google.android.gms.auth.api.credentials.CredentialRequest
import com.google.android.gms.auth.api.credentials.Credentials
import com.google.android.gms.auth.api.credentials.HintRequest

jakubkinst

open class DataBoundAdapter<T>(val lifecycleOwner: LifecycleOwner, val itemLayoutIdProvider: (T) -> Int, val bindingVariableId: Int, diffCallback: DiffUtil.ItemCallback<T>) : ListAdapter<T, DataBoundViewHolder>(diffCallback) {
	constructor(lifecycleOwner: LifecycleOwner, @LayoutRes itemLayoutId: Int, bindingVariableId: Int, diffCallback: DiffUtil.ItemCallback<T>) : this(lifecycleOwner, { itemLayoutId }, bindingVariableId, diffCallback)

	private val extras = hashMapOf<Int, Any>()

	override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): DataBoundViewHolder {
		val layoutInflater = LayoutInflater.from(parent.context)
		val binding = DataBindingUtil.inflate<ViewDataBinding>(layoutInflater, viewType, parent, false)
		binding.setLifecycleOwner(lifecycleOwner)
		return DataBoundViewHolder(binding)

jakubkinst

interface SignInView {
   //...
}

class SignInFragment : Fragment(), SignInView {
    val vmb by vmb<SignInViewModel, FragmentSignInBinding>(R.layout.fragment_sign_in)

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        return vmb.rootView
    }

jakubkinst

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="@string/global_email"
        android:inputType="textEmailAddress"
        android:text="@={viewModel.email}" />

jakubkinst

val formValid = MediatorLiveData<Boolean>()
    .addValueSource(email, { validateForm(email, password) })
    .addValueSource(password, { validateForm(email, password) })

jakubkinst

val email = mutableLiveDataOf(defaultEmail)
val password = mutableLiveDataOf(defaultPassword)
val formValid = MediatorLiveData<Boolean>().apply { 
    addSource(email, {value = validateForm(email.value, password.value)})
    addSource(password, {value = validateForm(email.value, password.value)})
}

private fun validateForm(email: String, password: String): Boolean 
    = validateEmail(email) && validatePassword(password, config.MIN_PASSWORD_LENGTH)

jakubkinst

class MainViewModel : ViewModel(){
    // val email = ObservableField<String>("@")
    val email = mutableLiveDataOf("@")
}

jakubkinst

class MainActivity : AppCompatActivity(){
    val viewModel = ViewModelProviders.of(this).get(MainViewModel::class.java)
  
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val titleView = findViewById<TextView>(R.id.title)
        viewModel.myliveData.observe(this, Observer {
            titleView.setText(it.title)
        })

jakubkinst

<layout>
    <data>
        <variable
            name="viewModel"
            type="com.strv.dundee.ui.main.MainViewModel" />

        <variable
            name="view"
            type="com.strv.dundee.ui.main.MainView" />
    </data>