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我的问题是binding
是工作,但不正确!当我在textfield
中键入新文本,然后尝试从textfield
获取数据并获得帮助binding
时,我看到了旧数据。我试图找到错误,但我不能。Android-kotlin-binding不更新属性
我activity_fblogin.xml
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">
<data>
</data>
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/grey_main"
android:descendantFocusability="beforeDescendants"
android:fitsSystemWindows="true"
android:focusableInTouchMode="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:context="com.example.darkt.makeyouself.activities.FBLogin"
tools:ignore="MissingConstraints">
<EditText
android:id="@+id/userName"
android:layout_width="220dp"
android:layout_height="43dp"
android:ems="10"
android:inputType="textPersonName"
android:text="test01"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="Login"/>
<EditText
android:id="@+id/userPass"
android:layout_width="220dp"
android:layout_height="45dp"
android:layout_marginTop="25dp"
android:ems="10"
android:inputType="textPassword"
android:text="123456"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/userName"
tools:layout_editor_absoluteX="74dp"
tools:layout_editor_absoluteY="245dp"
tools:text="Password"/>
<Button
android:id="@+id/loginButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Login"
android:textColor="@color/green_main"
app:layout_constraintEnd_toEndOf="@+id/userPass"
app:layout_constraintTop_toBottomOf="@+id/userPass" />
</android.support.constraint.ConstraintLayout>
</layout>
这是我为fblogin_activity
kotlin
类。我试图解决这个问题,但是...请给我一个主意吧!
package com.example.darkt.makeyouself.activities
class FBLogin : AppCompatActivity() {
private var binding: ActivityFbloginBinding? = null
private var auth: FirebaseAuth? = null
private var dbHelper: FirebaseHelper? =null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = DataBindingUtil.setContentView(this, R.layout.activity_fblogin)
auth = FirebaseAuth.getInstance()
dbHelper = FirebaseHelper()
setContentView(R.layout.activity_fblogin)
binding?.executePendingBindings()
signIn.setOnClickListener{_ -> showSignInActivity()}
}
private fun loginToSystem() {
val email = binding?.userName?.text.toString().trim()
val password = binding?.userPass?.text.toString()
binding?.executePendingBindings()
Toast.makeText(this, email, Toast.LENGTH_SHORT).show()
Toast.makeText(this, password, Toast.LENGTH_SHORT).show()
}
}
谢谢你的回答,克里斯!但它不起作用。 20天前我问了一些问题:https://stackoverflow.com/questions/46380992/kotlin-android-binding-not-update-data 没有人回答这个问题 –