SDK Manager 基础下载

双击SDK Manager打开Android SDK Manager。

全选以下几项

创建新项目

更改gradle的地址：

更改app的build.gradle：

android {
    compileSdkVersion
    buildToolsVersion '28.0.3'
    defaultConfig {
        applicationId "com.smallart.myapplication"
        minSdkVersion
        targetSdkVersion
        versionCode
        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'])
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.android.support:support-v4:26.0.0-alpha1'
    compile 'com.android.support:support-v13:26.0.0-alpha1'
    compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
    compile 'com.android.support:gridlayout-v7:26.0.0-alpha1'
    compile 'com.android.support:mediarouter-v7:26.0.0-alpha1'
    compile 'com.android.support:cardview-v7:26.0.0-alpha1'
    compile 'com.android.support:palette-v7:26.0.0-alpha1'
    compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'
    compile 'com.android.support:support-annotations:26.0.0-alpha1'
}

更改项目的build.gradle：

allprojects {
    repositories {
        maven { url 'http://repo1.maven.org/maven2' }
        jcenter { url "http://jcenter.bintray.com/" }
        google()
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.android.support:support-v4:26.0.0-alpha1'
compile 'com.android.support:support-v13:26.0.0-alpha1'
compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
compile 'com.android.support:gridlayout-v7:26.0.0-alpha1'
compile 'com.android.support:mediarouter-v7:26.0.0-alpha1'
compile 'com.android.support:cardview-v7:26.0.0-alpha1'
compile 'com.android.support:palette-v7:26.0.0-alpha1'
compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'
compile 'com.android.support:support-annotations:26.0.0-alpha1'
}