Kotlin Java camera Android
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RedApparat

Description

Making Camera for Android more friendly. 📸

3.6K Stars 378 Forks Apache License 2.0 630 Commits 76 Opened issues

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Fotoapparat

Build status

Camera API in Android is hard. Having 2 different API for new and old Camera does not make things any easier. But fret not, that is your lucky day! After several years of working with Camera, we came up with Fotoapparat.

What it provides:

  • Camera API which does not allow you to shoot yourself in the foot.
  • Simple yet powerful parameters customization.
  • Standalone custom
    CameraView
    which can be integrated into any
    Activity
    .
  • Fixes and workarounds for device-specific problems.
  • Both Kotlin and Java friendly configurations.
  • Last, but not least, non 0% test coverage.

Taking picture becomes as simple as:

val fotoapparat = Fotoapparat(
    context = this,
    view = cameraView
)

fotoapparat.start()

fotoapparat .takePicture() .saveToFile(someFile)

How it works

Step One

Add

CameraView
to your layout

Step Two

Configure

Fotoapparat
instance.
Fotoapparat(
            context = this,
            view = cameraView,                   // view which will draw the camera preview
            scaleType = ScaleType.CenterCrop,    // (optional) we want the preview to fill the view
            lensPosition = back(),               // (optional) we want back camera
            cameraConfiguration = configuration, // (optional) define an advanced configuration
            logger = loggers(                    // (optional) we want to log camera events in 2 places at once
                     logcat(),                   // ... in logcat
                     fileLogger(this)            // ... and to file
            ),
            cameraErrorCallback = { error -> }   // (optional) log fatal errors
    )

Check the wiki for the

configuration
options e.g. change iso

Are you using Java only? See our wiki for the java-friendly configuration.

Step Three

Call

start()
and
stop()
. No rocket science here.
override fun onStart() {
    super.onStart()
    fotoapparat.start()
}

override fun onStop() { super.onStop() fotoapparat.stop() }

Take a picture

Finally, we are ready to take a picture. You have various options.

val photoResult = fotoapparat.takePicture()

// Asynchronously saves photo to file photoResult.saveToFile(someFile)

// Asynchronously converts photo to bitmap and returns the result on the main thread photoResult .toBitmap() .whenAvailable { bitmapPhoto -> val imageView = (ImageView) findViewById(R.id.result)

        imageView.setImageBitmap(bitmapPhoto.bitmap)
        imageView.setRotation(-bitmapPhoto.rotationDegrees)
}

// Of course, you can also get a photo in a blocking way. Do not do it on the main thread though. val result = photoResult.toBitmap().await()

// Convert asynchronous events to RxJava 1.x/2.x types. // See /fotoapparat-adapters/ module photoResult .toBitmap() .toSingle() .subscribe { bitmapPhoto ->

    }

Update parameters

It is also possible to update some parameters after

Fotoapparat
was already started.
fotoapparat.updateConfiguration(
        UpdateConfiguration(
                flashMode = if (isChecked) torch() else off()
                // ...
                // all the parameters available in CameraConfiguration
        )
)

Or alternatively, you may provide updates on an existing full configuration.

val configuration = CameraConfiguration(
    // A full configuration
    // ...
)

fotoapparat.updateConfiguration( configuration.copy( flashMode = if (isChecked) torch() else off() // all the parameters available in CameraConfiguration ) )

Switch cameras

In order to switch between cameras,

Fotoapparat.switchTo()
can be used with the new desired
lensPosition
and its
cameraConfiguration
.
fotoapparat.switchTo(
    lensPosition = front(),
    cameraConfiguration = newConfigurationForFrontCamera
)

Set up

Add dependency to your

build.gradle
implementation 'io.fotoapparat:fotoapparat:2.7.0'

Camera permission will be automatically added to your

AndroidManifest.xml
. Do not forget to request this permission on Marshmallow and higher.

Face detection

Optionally, you can check out our other library which adds face detection capabilities - FaceDetector.

Credits

We want to say thanks to Mark Murphy for the awesome job he did with CWAC-Camera. We were using his library for a couple of years and now we feel that Fotoapparat is a next step in the right direction.

We also want to say many thanks to Leander Lenzing for the amazing icon. Don't forget to follow his work in dribbble.

License

Copyright 2017 Fotoapparat

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.

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