导入Snackbar时出错

Question

我正在尝试使用以下命令导入Snackbar.但是得到错误Cannot Resolve symbol Snackbar.这可能是什么问题？我尝试添加"android.support.design"依赖但不起作用.

import android.support.design.widget.Snackbar

我的build.gradle文件

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "in.anamika.anamika"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    //noinspection GradleCompatible
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.1'
    implementation 'com.googlecode.libphonenumber:libphonenumber:8.9.7'
    implementation 'com.google.firebase:firebase-auth:16.0.1'
    implementation 'com.google.firebase:firebase-core:16.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

}


apply plugin: 'com.google.gms.google-services'

Answer 1

Snackbar 属于Maven神器 com.android.support:design:27.1.1

您需要添加设计库的依赖项

在build.gradle中添加以下依赖项

implementation 'com.android.support:design:27.1.1'

比Clean - Re-Build - Run你的项目