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[英]Android Data binding - Error:(119, 29) Identifiers must have user defined types from the XML file. main_radio_subscribe is missing it
[英]data binding not getting “Identifiers must have user defined types from the XML file” error
我正在學習android數據綁定。 我面臨的問題是,在與當前設置的數據綁定相關的錯誤的情況下,我會收到非常籠統的錯誤消息,這些消息無法准確說明發生了什么事情和發生在哪里,而不是某些主題中提到的非常具體的消息關於數據綁定( 例如 )。
考慮以下布局:
<?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>
<!--<import type="android.view.View"/>-->
<!--<import type="android.text.TextUtils"/>-->
<variable
name="movie"
type="us.kostenko.architecturecomponentstmdb.details.model.Movie" />
</data>
<TextView
<!-- ... -->
android:text="@{TextUtils.isEmpty(movie.release_date) ? @string/empty_date : movie.release_date}"/>
</layout>
請注意,導入被故意注釋掉以觸發錯誤。
我希望得到類似Identifiers must have user defined types from the XML file. TextUtils is missing it
Identifiers must have user defined types from the XML file. TextUtils is missing it
錯誤。 但是我得到的錯誤是非常普遍的錯誤:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:kaptDebugKotlin'.
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.gradle.api.GradleException: Compilation error. See log for more details
at org.jetbrains.kotlin.gradle.tasks.TasksUtilsKt.throwGradleExceptionIfError(tasksUtils.kt:16)
at org.jetbrains.kotlin.gradle.internal.KaptWithKotlincTask.compile(KaptWithKotlincTask.kt:79)
我懷疑我的設置有問題。 我正在使用Android Studio 3.1.4。
這是我的build.gradle
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
apply plugin: 'kotlin-android-extensions'
android {
//...
dataBinding { enabled = true }
}
dependencies {
// ...
kapt "com.android.databinding:compiler:3.1.4"
}
和項目一級:
buildscript {
ext.kotlin_version = '1.2.70'
dependencies {
classpath 'com.android.tools.build:gradle:3.1.4'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
有什么想法我在這里想念的嗎?
這是我的,工作正常,給出適當的錯誤,沒有太大的區別。 嘗試這個...
應用程序級build.gradle
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 28
defaultConfig {
minSdkVersion 15
targetSdkVersion 28
}
dataBinding {
enabled = true
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
}
repositories {
mavenCentral()
}
項目級build.gradle
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = '1.2.70'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.4'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
allprojects {
repositories {
google()
jcenter()
maven { url "https://jitpack.io" }
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
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