Inline Dimens

Never confuse px, dp, and sp at runtime again. Inline Dimens offers a separate inline class for each dimen type, ensuring compile-time unit confidence without any runtime cost. Extension functions provide the ability to interact with the Android framework directly with these unit-safe types, and to convert between them easily.

Download

Inline Dimens is available on Maven Central. It is experimental, and the API may undergo breaking changes before version 1.0.0.

To use Inline Dimens, include the following in your Gradle dependencies:

implementation "dev.drewhamilton.inlinedimens:inlinedimens:$version"

Usage

Ensure inline classes are enabled in your build.gradle file:

android {
    // ...
    kotlinOptions {
        // ...
        freeCompilerArgs += ["-XXLanguage:+InlineClasses"]
    }
}

Then, work directly with unit-safe types in your code. For example, get a TextView's text size in the unit of your choice:

val scaledTextSize = textView.textSizeSp

And convert between different units at will:

val textSizePx = scaledTextSize.toPx()

Note: Inline classes don't play nicely with Java source code, so this library is unusable in Java source.

License

Copyright 2019 Drew Hamilton

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.