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Simple-Camera
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adding some touch to focus handling

This commit is contained in:
tibbi 2018-05-30 22:58:12 +02:00
parent 328c4300a5
commit 5c6d4132cb
1 changed files with 67 additions and 22 deletions
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89
app/src/main/kotlin/com/simplemobiletools/camera/views/PreviewCameraTwo.kt
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@ -7,6 +7,7 @@ import android.graphics.ImageFormat
import android.graphics.Point
import android.graphics.SurfaceTexture
import android.hardware.camera2.*
import android.hardware.camera2.params.MeteringRectangle
import android.media.ImageReader
import android.net.Uri
import android.os.Build
@ -24,9 +25,11 @@ import java.util.*
import java.util.concurrent.Semaphore
import java.util.concurrent.TimeUnit
// based on the Android Camera2 sample at https://github.com/googlesamples/android-Camera2Basic
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
class PreviewCameraTwo : ViewGroup, TextureView.SurfaceTextureListener, MyPreview {
private val FOCUS_TAG = "focus_tag"
private val MAX_PREVIEW_WIDTH = 1920
private val MAX_PREVIEW_HEIGHT = 1080
@ -265,28 +268,27 @@ class PreviewCameraTwo : ViewGroup, TextureView.SurfaceTextureListener, MyPrevie
mPreviewRequestBuilder = mCameraDevice!!.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW)
mPreviewRequestBuilder!!.addTarget(surface)
mCameraDevice!!.createCaptureSession(Arrays.asList(surface, mImageReader!!.surface),
object : CameraCaptureSession.StateCallback() {
override fun onConfigured(cameraCaptureSession: CameraCaptureSession) {
if (mCameraDevice == null) {
return
}
val stateCallback = object : CameraCaptureSession.StateCallback() {
override fun onConfigured(cameraCaptureSession: CameraCaptureSession) {
if (mCameraDevice == null) {
return
}
mCaptureSession = cameraCaptureSession
try {
mPreviewRequestBuilder!!.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE)
mPreviewRequestBuilder!!.set(CaptureRequest.FLASH_MODE, getFlashlightMode(mFlashlightState))
mPreviewRequest = mPreviewRequestBuilder!!.build()
mCaptureSession!!.setRepeatingRequest(mPreviewRequest, mCaptureCallback, mBackgroundHandler)
mCameraState = STATE_PREVIEW
} catch (e: CameraAccessException) {
}
}
mCaptureSession = cameraCaptureSession
try {
mPreviewRequestBuilder!!.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE)
mPreviewRequestBuilder!!.set(CaptureRequest.FLASH_MODE, getFlashlightMode(mFlashlightState))
mPreviewRequest = mPreviewRequestBuilder!!.build()
mCaptureSession!!.setRepeatingRequest(mPreviewRequest, mCaptureCallback, mBackgroundHandler)
mCameraState = STATE_PREVIEW
} catch (e: CameraAccessException) {
}
}
override fun onConfigureFailed(cameraCaptureSession: CameraCaptureSession) {
}
}, null
)
override fun onConfigureFailed(cameraCaptureSession: CameraCaptureSession) {}
}
mCameraDevice!!.createCaptureSession(Arrays.asList(surface, mImageReader!!.surface), stateCallback, null)
} catch (e: CameraAccessException) {
}
}
@ -354,7 +356,7 @@ class PreviewCameraTwo : ViewGroup, TextureView.SurfaceTextureListener, MyPrevie
set(CaptureRequest.JPEG_ORIENTATION, mSensorOrientation)
}
val CaptureCallback = object : CameraCaptureSession.CaptureCallback() {
val captureCallback = object : CameraCaptureSession.CaptureCallback() {
override fun onCaptureCompleted(session: CameraCaptureSession, request: CaptureRequest, result: TotalCaptureResult) {
unlockFocus()
mActivity.toggleBottomButtons(false)
@ -369,14 +371,57 @@ class PreviewCameraTwo : ViewGroup, TextureView.SurfaceTextureListener, MyPrevie
mCaptureSession!!.apply {
stopRepeating()
abortCaptures()
capture(captureBuilder.build(), CaptureCallback, null)
capture(captureBuilder.build(), captureCallback, null)
}
} catch (e: CameraAccessException) {
}
}
// inspired by https://gist.github.com/royshil/8c760c2485257c85a11cafd958548482
private fun focusArea() {
mActivity.drawFocusCircle(mLastClickX, mLastClickY)
val manager = mActivity.getSystemService(Context.CAMERA_SERVICE) as CameraManager
val characteristics = manager.getCameraCharacteristics(mCameraId)
val sensorArraySize = characteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE)
val x = (mLastClickX / mTextureView.width) * sensorArraySize.height()
val y = (mLastClickY / mTextureView.height) * sensorArraySize.width()
val halfTouchWidth = 150
val halfTouchHeight = 150
val focusAreaTouch = MeteringRectangle(Math.max(x - halfTouchWidth, 0f).toInt(),
Math.max(y - halfTouchHeight, 0f).toInt(),
halfTouchWidth * 2,
halfTouchHeight * 2,
MeteringRectangle.METERING_WEIGHT_MAX - 1)
val captureCallbackHandler = object : CameraCaptureSession.CaptureCallback() {
override fun onCaptureCompleted(session: CameraCaptureSession, request: CaptureRequest, result: TotalCaptureResult) {
super.onCaptureCompleted(session, request, result)
if (request.tag === FOCUS_TAG) {
mPreviewRequestBuilder!!.set(CaptureRequest.CONTROL_AF_TRIGGER, null)
mCaptureSession!!.setRepeatingRequest(mPreviewRequestBuilder!!.build(), null, null)
}
}
}
mCaptureSession!!.stopRepeating()
mPreviewRequestBuilder!!.apply {
set(CaptureRequest.CONTROL_AF_TRIGGER, CameraMetadata.CONTROL_AF_TRIGGER_CANCEL)
set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_OFF)
mCaptureSession!!.capture(build(), captureCallbackHandler, mBackgroundHandler)
if (characteristics.get(CameraCharacteristics.CONTROL_MAX_REGIONS_AF) >= 1) {
set(CaptureRequest.CONTROL_AF_REGIONS, arrayOf(focusAreaTouch))
}
set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO)
set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_AUTO)
set(CaptureRequest.CONTROL_AF_TRIGGER, CameraMetadata.CONTROL_AF_TRIGGER_START)
setTag(FOCUS_TAG)
mCaptureSession!!.capture(build(), captureCallbackHandler, mBackgroundHandler)
}
}
private fun lockFocus() {