相关疑难解决方法(0)

在更新到Android Studio 3.0并创建一个新项目后,我注意到build.gradle有一种新方法可以添加新的依赖项,而不是compile存在implementation而不是testCompile存在testImplementation.

例:

 implementation 'com.android.support:appcompat-v7:25.0.0'
 testImplementation 'junit:junit:4.12'

代替

 compile 'com.android.support:appcompat-v7:25.0.0'
 testCompile 'junit:junit:4.12'

它们之间有什么区别,我应该使用什么？

将'com.firebaseui:firebase-ui-auth:1.0.0'添加到依赖项后,出现错误.当我从gradle中删除'com.firebaseui:firebase-ui-auth:1.0.0'时,错误消失了.代码和图片包含在下面的帮助中

apply plugin: 'com.android.application'

android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
    applicationId "com.example.a.chatapp"
    minSdkVersion 22
    targetSdkVersion 25
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.3.0'



compile 'com.firebaseui:firebase-ui:0.3.1'






compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'