Android数据绑定无法解析符号(gradle 3.0.1)

Android数据绑定无法解析符号(gradle 3.0.1),android,android-databinding,Android,Android Databinding,我想我可能遗漏了一些明显的东西,绑定无法访问我的textview id?例如 binding.myText.setText(“此处文本”);>无法解析符号“myText” MainActivity.java public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCrea

我想我可能遗漏了一些明显的东西,绑定无法访问我的textview id?例如

binding.myText.setText(“此处文本”);>无法解析符号“myText”


MainActivity.java

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        ActivityMainBinding binding = DataBindingUtil.setContentView(this, R.layout.activity_main);
        binding.myText.setText("test");
    }
}

活动\u main.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">

    <android.support.constraint.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:id="@+id/myText"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent"/>
    </android.support.constraint.ConstraintLayout>
</layout>
build.gradle(根)

gradle:3.0.1
更改为
gradle:3.0.0


gradle:3.0.1
更改为
gradle:3.0.0

是否尝试清理/重建?我尝试了,让我尝试使缓存无效并重新启动。我还添加了我的gradle文件,可能是缺少了一些内容:|好吧,我做了一个使缓存无效并重新启动的操作,现在似乎已经将其踢到了工作状态:)很抱歉这个明显的问题,您是否尝试了清理/重建?我做了,让我尝试使缓存无效并重新启动。我还添加了我的gradle文件,可能缺少一些东西:|好吧,我做了一个使缓存无效并重新启动的操作,这似乎使它现在进入了工作状态:)很抱歉出现了明显的问题无效缓存和重新启动似乎起了作用:)-这不是一个解决方案。无效缓存和重新启动似乎起了作用:)-这不是一个解决方案。
android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.example.francoismarais.myapplication"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    dataBinding {
        enabled = true
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'

    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}
// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'


        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.0.0'

    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
   }