现阶段常用的几个常用的依赖

 

 //retrofit
    implementation 'com.squareup.retrofit2:retrofit:2.4.0'
    implementation 'com.squareup.retrofit2:converter-gson:2.0.2'
    implementation 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'
    //okhttp
    implementation 'com.squareup.okhttp3:okhttp:3.11.0'
    implementation 'com.squareup.okhttp3:logging-interceptor:3.10.0'
    //gson
    implementation 'com.google.code.gson:gson:2.8.5'
    //rxjava
    implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'
    implementation 'io.reactivex.rxjava2:rxjava:2.0.2'
    //recyclerview
    implementation 'com.android.support:recyclerview-v7:26+'
    implementation 'com.jcodecraeer:xrecyclerview:1.5.9'
    //butterknife
    implementation 'com.jakewharton:butterknife:8.8.1'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
    //Eventbus
    compile 'org.greenrobot:eventbus:3.1.1'
    //banners
    compile 'com.youth.banner:banner:1.4.9'
    //fresco
    compile 'com.facebook.fresco:fresco:0.12.0'
    // 在 API < 14 上的机器支持 WebP 时，需要添加
    compile 'com.facebook.fresco:animated-base-support:0.12.0'

    // 支持 GIF 动图，需要添加
    compile 'com.facebook.fresco:animated-gif:0.12.0'

    // 支持 WebP （静态图+动图），需要添加
    compile 'com.facebook.fresco:animated-webp:0.12.0'
    compile 'com.facebook.fresco:webpsupport:0.12.0'

    // 仅支持 WebP 静态图，需要添加
    compile 'com.facebook.fresco:webpsupport:0.12.0'

版本冲突问题解决

 configurations.all {
        resolutionStrategy.eachDependency { DependencyResolveDetails details ->
            def requested = details.requested
            if (requested.group == 'com.android.support') {
                if (!requested.name.startsWith("multidex")) {
                    details.useVersion '27.1.1'
                }
            }
        }
    }

myapp

public class MyApp extends Application {
    private static MyApp mApp;
    @Override
    public void onCreate() {
        super.onCreate();
        Fresco.initialize(this);
    }

    public static Context getAppContext(){
        return mApp;
    }
}