如何在android中添加库改造?

时间:2019-03-16 07:12:59

标签: android

我想在我的android中添加改造,但是当我想添加该库时,我的android出现错误,这是我的错误:

Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.squareup.retrofit2:retrofit:2.5.0.

和我的应用模块代码如下:

android {
compileSdkVersion 28
defaultConfig {
    applicationId "com.example.mahdi.chatapp"
    minSdkVersion 16
    targetSdkVersion 28
    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(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.google.firebase:firebase-auth:16.1.0'
implementation 'com.google.firebase:firebase-config:16.3.0'
implementation 'com.google.firebase:firebase-storage:16.1.0'
implementation 'com.google.firebase:firebase-firestore:11.8.0'
implementation 'com.google.firebase:firebase-messaging:11.8.0'
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'
implementation 'com.android.support:support-v4:28.0.0'
implementation 'com.android.support:design:28.0.0'
implementation 'com.google.firebase:firebase-core:16.0.7'
implementation 'com.google.firebase:firebase-database:16.1.0'
implementation 'com.android.support:cardview-v7:28.0.0'
implementation 'com.rengwuxian.materialedittext:library:2.1.4'
implementation 'de.hdodenhof:circleimageview:3.0.0'
implementation 'com.github.bumptech.glide:glide:4.9.0'
implementation 'com.squareup.retrofit2:retrofit:2.5.0'
}

应用插件:“ com.google.gms.google-services”

并且我的构建项目代码在以下

buildscript {

repositories {
    google()
    mavenCentral()
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.1.2'
    classpath 'com.google.gms:google-services:4.0.1'
}
}

allprojects {
repositories {
    mavenCentral()
    google()
}
}

task clean(type: Delete) {
delete rootProject.buildDir
}

3 个答案:

答案 0 :(得分:2)

转到文件⇒新建项目。当它提示您选择默认活动时,选择“清空活动”并继续。 在(模块find({ userId: ObjectId("54759eb3c090d83494e2d804") }) 中打开build.gradle,并添加:appRetrofitPicassoRecyclerView依赖项。

Gson

答案 1 :(得分:1)

您收到的错误是因为2.5.0版本未签名。如果在jcenter http://jcenter.bintray.com/com/squareup/retrofit2/retrofit/2.5.0/中看到文件未签名.asc扩展名。如果您检查版本2.4.0

尝试一下:

implementation 'com.squareup.retrofit2:retrofit:2.4.0'
implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
implementation 'com.google.code.gson:gson:2.8.2'

如果您还希望使用rxJava转换器:

implementation 'com.squareup.retrofit2:adapter-rxjava2:2.4.0'
implementation 'io.reactivex.rxjava2:rxjava:2.1.13'
implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'

希望有帮助!

答案 2 :(得分:1)

在应用程序级别的build.gradle文件中添加此依赖项:

implementation 'com.squareup.retrofit2:retrofit:2.5.0'

有关更多详细信息,您可以访问此link