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run Camera.startPreview() off main thread

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Closes #4620
// FREEBIE
This commit is contained in:
Jake McGinty 2015-11-19 17:52:29 -08:00 committed by Moxie Marlinspike
parent d9467ef3c5
commit 4fe6256967
1 changed files with 38 additions and 39 deletions
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77
src/org/thoughtcrime/securesms/components/camera/CameraView.java
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@ -55,13 +55,13 @@ public class CameraView extends FrameLayout {
private final CameraSurfaceView surface;
private final OnOrientationChange onOrientationChange;
private @NonNull volatile Optional<Camera> camera = Optional.absent();
private volatile int cameraId = CameraInfo.CAMERA_FACING_BACK;
private volatile Optional<Camera> camera = Optional.absent();
private volatile int cameraId = CameraInfo.CAMERA_FACING_BACK;
private volatile int displayOrientation = -1;
private @NonNull State state = State.PAUSED;
private @Nullable Size previewSize;
private @Nullable CameraViewListener listener;
private int displayOrientation = -1;
private int outputOrientation = -1;
public CameraView(Context context) {
@ -96,41 +96,35 @@ public class CameraView extends FrameLayout {
if (state != State.PAUSED) return;
state = State.RESUMED;
Log.w(TAG, "onResume() queued");
enqueueTask(new SerialAsyncTask<Camera>() {
enqueueTask(new SerialAsyncTask<Void>() {
@Override
protected
@Nullable
Camera onRunBackground() {
Void onRunBackground() {
try {
return Camera.open(cameraId);
camera = Optional.fromNullable(Camera.open(cameraId));
synchronized (CameraView.this) {
CameraView.this.notifyAll();
}
if (camera.isPresent()) onCameraReady(camera.get());
} catch (Exception e) {
Log.w(TAG, e);
return null;
}
return null;
}
@Override
protected void onPostMain(@Nullable Camera camera) {
if (camera == null) {
protected void onPostMain(Void avoid) {
if (!camera.isPresent()) {
Log.w(TAG, "tried to open camera but got null");
if (listener != null) listener.onCameraFail();
return;
}
CameraView.this.camera = Optional.of(camera);
try {
if (getActivity().getRequestedOrientation() != ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED) {
onOrientationChange.enable();
}
onCameraReady();
synchronized (CameraView.this) {
CameraView.this.notifyAll();
}
Log.w(TAG, "onResume() completed");
} catch (RuntimeException e) {
Log.w(TAG, "exception when starting camera preview", e);
onPause();
if (getActivity().getRequestedOrientation() != ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED) {
onOrientationChange.enable();
}
Log.w(TAG, "onResume() completed");
}
});
}
@ -267,10 +261,8 @@ public class CameraView extends FrameLayout {
}
@TargetApi(14)
private void onCameraReady() {
if (!camera.isPresent()) return;
final Parameters parameters = camera.get().getParameters();
private void onCameraReady(final @NonNull Camera camera) {
final Parameters parameters = camera.getParameters();
if (VERSION.SDK_INT >= 14) {
parameters.setRecordingHint(true);
@ -283,20 +275,18 @@ public class CameraView extends FrameLayout {
}
displayOrientation = CameraUtils.getCameraDisplayOrientation(getActivity(), getCameraInfo());
camera.get().setDisplayOrientation(displayOrientation);
camera.get().setParameters(parameters);
camera.setDisplayOrientation(displayOrientation);
camera.setParameters(parameters);
enqueueTask(new PostInitializationTask<Void>() {
@Override protected void onPostMain(Void avoid) {
if (camera.isPresent()) {
try {
camera.get().setPreviewDisplay(surface.getHolder());
startPreview(parameters);
requestLayout();
} catch (Exception e) {
Log.w(TAG, e);
}
@Override
protected Void onRunBackground() {
try {
camera.setPreviewDisplay(surface.getHolder());
startPreview(parameters);
} catch (Exception e) {
Log.w(TAG, "couldn't set preview display");
}
return null;
}
});
}
@ -317,7 +307,7 @@ public class CameraView extends FrameLayout {
previewSize = parameters.getPreviewSize();
}
camera.startPreview();
requestLayout();
postRequestLayout();
state = State.ACTIVE;
} catch (Exception e) {
Log.w(TAG, e);
@ -357,6 +347,15 @@ public class CameraView extends FrameLayout {
return outputOrientation;
}
private void postRequestLayout() {
post(new Runnable() {
@Override
public void run() {
requestLayout();
}
});
}
private @NonNull CameraInfo getCameraInfo() {
final CameraInfo info = new Camera.CameraInfo();
Camera.getCameraInfo(cameraId, info);