File Upload Example - Android

Android: Upload Image on Server using Retrofit Library

Here we have used below libs:

/*retrofit lib for http calls*/
implementation 'com.squareup.retrofit2:retrofit:2.1.0'
implementation 'com.squareup.retrofit2:converter-gson:2.1.0'
implementation 'com.squareup:otto:1.3.8'
implementation 'com.squareup.okhttp3:okhttp:3.7.0'
implementation 'com.squareup.retrofit2:adapter-rxjava:2.1.0'
//https://github.com/ReactiveX/RxAndroid
implementation 'io.reactivex:rxandroid:1.2.1'
implementation 'io.reactivex:rxjava:1.3.0'

//Image Cropping Lib
implementation 'com.yalantis:ucrop:2.2.0'
//Image loading Lib
implementation 'com.squareup.picasso:picasso:2.5.2'

Permissions needed in Manifest:

<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />