Android Studio抽屉菜单预览问题

时间:2019-07-03 08:57:20

标签: android android-studio menu

我无法在android studio中预览菜单。

我已经在文件中添加了tools:showIn="navigation_view",但仍然无法正常工作。

屏幕截图

Screenshot

build.gradle:

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.core:core-ktx:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'com.android.support:design:28.0.0'
    implementation 'com.google.android.material:material:1.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}

菜单:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  tools:showIn="navigation_view">

    <group android:checkableBehavior="single">
        <item
            android:id="@+id/nav_dashboard"
            android:title="Dashboard"
            android:icon="@drawable/ic_dashboard"/>
        <item
            android:id="@+id/nav_profile"
            android:title="Profile"
            android:icon="@drawable/ic_dashboard"/>
    </group>
</menu>

0 个答案:

没有答案