BottomNavigationView不存在

Question

我正在尝试将Navigationeditor与底部导航视图一起使用，但是似乎bottomnavigationview只会导致问题。

这是我的xml：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.wedding.rashmilind"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.1.0-alpha04'

    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support:appcompat-v7:28.0.0'

    implementation 'com.android.support:design:28.0.0'
    implementation 'com.android.support:design:28.0.0'

    implementation "com.android.support:support-v4:28.0.0"
    implementation "com.android.support:support-v4:28.0.0"
    implementation 'com.google.android.material:material:1.1.0-alpha05'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'androidx.vectordrawable:vectordrawable:1.1.0-alpha01'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.2.0-alpha04'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0-alpha04'
    implementation 'android.arch.navigation:navigation-fragment:1.0.0'
    implementation 'android.arch.navigation:navigation-ui:1.0.0'
}

这是gradle：

Caused by: android.view.InflateException: Binary XML file line #23: Binary XML file line #23: Error inflating class android.support.design.widget.BottomNavigationView
     Caused by: android.view.InflateException: Binary XML file line #23: Error inflating class android.support.design.widget.BottomNavigationView
     Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.design.widget.BottomNavigationView" on path: DexPathList[[zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/base.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_dependencies_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_resources_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_slice_0_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_slice_1_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_slice_2_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_slice_3_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_slice_4_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_slice_5_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_slice_6_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_slice_7_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_slice_8_apk.apk", zip file "/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.wedding.rashmilind-zTaNp816F4MRKuZ8FBDtjw==/lib/arm64, /system/lib64, /vendor/lib64]]

这是我在运行代码时遇到的错误：

com.google.android.material.bottomnavigation.BottomNavigationView

仅获得此视图：@IBOutlet var main: UIView! func commonInit() { Bundle.main.loadNibNamed("HelpPageSection", owner: self, options: nil) self.addSubview(self.main) } override init(frame: CGRect) { super.init(frame: frame) self.commonInit() } required init?(coder aDecoder: NSCoder) { super.init(coder: aDecoder) self.commonInit() }

Answer 1

因为您已迁移到AndroidX ...请改用com.google.android.material.bottomnavigation.BottomNavigationView

<com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/bottom_navigation"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="0dp"
        android:layout_marginEnd="0dp"
        android:background="?android:attr/windowBackground"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:menu="@menu/navigation" />

Answer 2

在MAC CMD + SHIFT + R上

然后替换所有出现的

  

android.support.design.widget.BottomNavigationView

使用

  

com.google.android.material.bottomnavigation.BottomNavigationView