Support Min SDK Version : API 18 (Android 4.3 Jelly Bean)

[ghusta]

Try to lower minSdkVersion 19 -> 18
https://developer.android.com/about/versions/android-4.3.html

General : https://developer.android.com/guide/topics/manifest/uses-sdk-element.html

[ghusta]

Execute gradlew lint to check code compatibility.

For example :

Call requires API level 19 (current min is 18): java.util.Objects#requireNonNull

[ghusta]

App Crash can be avoided with something like :

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            Objects.requireNonNull(uri);
        }

But if API version is lower, code won't be executed...

[ghusta]

Objects#hash could be replaced by org.apache.commons.lang3.ObjectUtils#hashCode