Java Code Examples for android.hardware.Camera#cancelAutoFocus()
The following examples show how to use
android.hardware.Camera#cancelAutoFocus() .
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Example 1
| Source File: CameraManager.java From bcm-android with GNU General Public License v3.0 | 6 votes |
|
private static void setTorchEnabled(final Camera camera, final boolean enabled) {
final Camera.Parameters parameters = camera == null ? null : camera.getParameters();
if (parameters == null) {
return;
}
final List<String> supportedFlashModes = parameters.getSupportedFlashModes();
if (supportedFlashModes != null) {
final String flashMode;
if (enabled) {
flashMode = findValue(supportedFlashModes, Camera.Parameters.FLASH_MODE_TORCH,
Camera.Parameters.FLASH_MODE_ON);
} else {
flashMode = findValue(supportedFlashModes, Camera.Parameters.FLASH_MODE_OFF);
}
if (flashMode != null) {
camera.cancelAutoFocus(); // autofocus can cause conflict
parameters.setFlashMode(flashMode);
camera.setParameters(parameters);
}
}
}
Example 2
| Source File: CameraManager.java From green_android with GNU General Public License v3.0 | 6 votes |
|
private static void setTorchEnabled(final Camera camera, final boolean enabled) {
final Camera.Parameters parameters = camera.getParameters();
final List<String> supportedFlashModes = parameters.getSupportedFlashModes();
if (supportedFlashModes != null) {
final String flashMode;
if (enabled)
flashMode = findValue(supportedFlashModes, Camera.Parameters.FLASH_MODE_TORCH,
Camera.Parameters.FLASH_MODE_ON);
else
flashMode = findValue(supportedFlashModes, Camera.Parameters.FLASH_MODE_OFF);
if (flashMode != null) {
camera.cancelAutoFocus(); // autofocus can cause conflict
parameters.setFlashMode(flashMode);
camera.setParameters(parameters);
}
}
}
Example 3
| Source File: CodeScanner.java From code-scanner with MIT License | 6 votes |
|
private void stopPreviewInternal(final boolean internal) {
try {
final DecoderWrapper decoderWrapper = mDecoderWrapper;
if (decoderWrapper != null) {
final Camera camera = decoderWrapper.getCamera();
camera.cancelAutoFocus();
final Parameters parameters = camera.getParameters();
if (!internal && decoderWrapper.isFlashSupported() && mFlashEnabled) {
Utils.setFlashMode(parameters, Parameters.FLASH_MODE_OFF);
}
camera.setParameters(parameters);
camera.setPreviewCallback(null);
camera.stopPreview();
}
} catch (final Exception ignored) {
}
mStoppingPreview = false;
mPreviewActive = false;
mSafeAutoFocusing = false;
mSafeAutoFocusAttemptsCount = 0;
}
Example 4
| Source File: CodeScanner.java From code-scanner with MIT License | 6 votes |
|
private void safeAutoFocusCamera() {
if (!mInitialized || !mPreviewActive) {
return;
}
final DecoderWrapper decoderWrapper = mDecoderWrapper;
if (decoderWrapper == null || !decoderWrapper.isAutoFocusSupported() ||
!mAutoFocusEnabled) {
return;
}
if (mSafeAutoFocusing && mSafeAutoFocusAttemptsCount < SAFE_AUTO_FOCUS_ATTEMPTS_THRESHOLD) {
mSafeAutoFocusAttemptsCount++;
} else {
try {
final Camera camera = decoderWrapper.getCamera();
camera.cancelAutoFocus();
camera.autoFocus(mSafeAutoFocusCallback);
mSafeAutoFocusAttemptsCount = 0;
mSafeAutoFocusing = true;
} catch (final Exception e) {
mSafeAutoFocusing = false;
}
}
scheduleSafeAutoFocusTask();
}
Example 5
| Source File: CameraManager.java From GreenBits with GNU General Public License v3.0 | 6 votes |
|
private static void setTorchEnabled(final Camera camera, final boolean enabled)
{
final Camera.Parameters parameters = camera.getParameters();
final List<String> supportedFlashModes = parameters.getSupportedFlashModes();
if (supportedFlashModes != null)
{
final String flashMode;
if (enabled)
flashMode = findValue(supportedFlashModes, Camera.Parameters.FLASH_MODE_TORCH, Camera.Parameters.FLASH_MODE_ON);
else
flashMode = findValue(supportedFlashModes, Camera.Parameters.FLASH_MODE_OFF);
if (flashMode != null)
{
camera.cancelAutoFocus(); // autofocus can cause conflict
parameters.setFlashMode(flashMode);
camera.setParameters(parameters);
}
}
}
Example 6
| Source File: CameraManager.java From Pix-Art-Messenger with GNU General Public License v3.0 | 6 votes |
|
private static void setTorchEnabled(final Camera camera, final boolean enabled) {
final Camera.Parameters parameters = camera.getParameters();
final List<String> supportedFlashModes = parameters.getSupportedFlashModes();
if (supportedFlashModes != null) {
final String flashMode;
if (enabled)
flashMode = findValue(supportedFlashModes, Camera.Parameters.FLASH_MODE_TORCH,
Camera.Parameters.FLASH_MODE_ON);
else
flashMode = findValue(supportedFlashModes, Camera.Parameters.FLASH_MODE_OFF);
if (flashMode != null) {
camera.cancelAutoFocus(); // autofocus can cause conflict
parameters.setFlashMode(flashMode);
camera.setParameters(parameters);
}
}
}
Example 7
| Source File: CameraManager.java From bither-android with Apache License 2.0 | 6 votes |
|
private static void setTorchEnabled(final Camera camera,
final boolean enabled) {
final Camera.Parameters parameters = camera.getParameters();
final List<String> supportedFlashModes = parameters
.getSupportedFlashModes();
if (supportedFlashModes != null) {
final String flashMode;
if (enabled)
flashMode = findValue(supportedFlashModes,
Camera.Parameters.FLASH_MODE_TORCH,
Camera.Parameters.FLASH_MODE_ON);
else
flashMode = findValue(supportedFlashModes,
Camera.Parameters.FLASH_MODE_OFF);
if (flashMode != null) {
camera.cancelAutoFocus(); // autofocus can cause conflict
parameters.setFlashMode(flashMode);
camera.setParameters(parameters);
}
}
}
Example 8
| Source File: CameraManager.java From Conversations with GNU General Public License v3.0 | 6 votes |
|
private static void setTorchEnabled(final Camera camera, final boolean enabled) {
final Camera.Parameters parameters = camera.getParameters();
final List<String> supportedFlashModes = parameters.getSupportedFlashModes();
if (supportedFlashModes != null) {
final String flashMode;
if (enabled)
flashMode = findValue(supportedFlashModes, Camera.Parameters.FLASH_MODE_TORCH,
Camera.Parameters.FLASH_MODE_ON);
else
flashMode = findValue(supportedFlashModes, Camera.Parameters.FLASH_MODE_OFF);
if (flashMode != null) {
camera.cancelAutoFocus(); // autofocus can cause conflict
parameters.setFlashMode(flashMode);
camera.setParameters(parameters);
}
}
}
Example 9
| Source File: CodeScanner.java From code-scanner with MIT License | 5 votes |
|
@SuppressWarnings("SuspiciousNameCombination")
void performTouchFocus(final Rect viewFocusArea) {
synchronized (mInitializeLock) {
if (mInitialized && mPreviewActive && !mTouchFocusing) {
try {
setAutoFocusEnabled(false);
final DecoderWrapper decoderWrapper = mDecoderWrapper;
if (mPreviewActive && decoderWrapper != null &&
decoderWrapper.isAutoFocusSupported()) {
final Point imageSize = decoderWrapper.getImageSize();
int imageWidth = imageSize.getX();
int imageHeight = imageSize.getY();
final int orientation = decoderWrapper.getDisplayOrientation();
if (orientation == 90 || orientation == 270) {
final int width = imageWidth;
imageWidth = imageHeight;
imageHeight = width;
}
final Rect imageArea =
Utils.getImageFrameRect(imageWidth, imageHeight, viewFocusArea,
decoderWrapper.getPreviewSize(),
decoderWrapper.getViewSize());
final Camera camera = decoderWrapper.getCamera();
camera.cancelAutoFocus();
final Parameters parameters = camera.getParameters();
Utils.configureFocusArea(parameters, imageArea, imageWidth, imageHeight,
orientation);
Utils.configureFocusModeForTouch(parameters);
camera.setParameters(parameters);
camera.autoFocus(mTouchFocusCallback);
mTouchFocusing = true;
}
} catch (final Exception ignored) {
}
}
}
}
Example 10
| Source File: CodeScanner.java From code-scanner with MIT License | 5 votes |
|
private void setAutoFocusEnabledInternal(final boolean autoFocusEnabled) {
try {
final DecoderWrapper decoderWrapper = mDecoderWrapper;
if (decoderWrapper != null) {
final Camera camera = decoderWrapper.getCamera();
camera.cancelAutoFocus();
mTouchFocusing = false;
final Parameters parameters = camera.getParameters();
final AutoFocusMode autoFocusMode = mAutoFocusMode;
if (autoFocusEnabled) {
Utils.setAutoFocusMode(parameters, autoFocusMode);
} else {
Utils.disableAutoFocus(parameters);
}
if (autoFocusEnabled) {
final Rect frameRect = mScannerView.getFrameRect();
if (frameRect != null) {
Utils.configureDefaultFocusArea(parameters, decoderWrapper, frameRect);
}
}
camera.setParameters(parameters);
if (autoFocusEnabled) {
mSafeAutoFocusAttemptsCount = 0;
mSafeAutoFocusing = false;
if (autoFocusMode == AutoFocusMode.SAFE) {
scheduleSafeAutoFocusTask();
}
}
}
} catch (final Exception ignored) {
}
}
Example 11
| Source File: CameraPreview.java From RecordVideo with Apache License 2.0 | 5 votes |
|
public boolean manualFocus(Camera camera, Camera.AutoFocusCallback cb, List<Camera.Area> focusAreas
,List<Camera.Area> mFocusAreas) {
//判断系统是否是4.0以上的版本
if (camera != null && focusAreas != null && SystemVersionUtil.hasICS()) {
try {
camera.cancelAutoFocus();
Camera.Parameters parameters = camera.getParameters();
if(parameters != null){
// getMaxNumFocusAreas检测设备是否支持
if (parameters.getMaxNumFocusAreas() > 0) {
parameters.setFocusAreas(focusAreas);
}
// getMaxNumMeteringAreas检测设备是否支持
if (parameters.getMaxNumMeteringAreas() > 0)
parameters.setMeteringAreas(mFocusAreas);
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_MACRO);
camera.setParameters(parameters);
camera.autoFocus(cb);
return true;
}
} catch (Exception e) {
if (e != null)
Log.e(" ", "autoFocus", e);
}
}
return false;
}
Example 12
| Source File: FaceUtil.java From ViseFace with Apache License 2.0 | 4 votes |
|
/**
* 在摄像头启动前设置参数
*
* @param cameraPreview
* @param faceDetector
* @param camera
* @param cameraId
* @param width
* @param height
* @param <T>
*/
public static <T> int setCameraParams(CameraPreview cameraPreview, IFaceDetector<T> faceDetector, Camera camera,
int cameraId, int width, int height) {
if (camera == null) {
return 0;
}
// 获取摄像头支持的pictureSize列表
Camera.Parameters parameters = camera.getParameters();
List<Camera.Size> pictureSizeList = parameters.getSupportedPictureSizes();
// 从列表中选择合适的分辨率
Point pictureSize = FaceUtil.findBestResolution(pictureSizeList, new Point(width, height), true, 0.15f);
// 根据选出的PictureSize重新设置SurfaceView大小
parameters.setPictureSize(pictureSize.x, pictureSize.y);
// 获取摄像头支持的PreviewSize列表
List<Camera.Size> previewSizeList = parameters.getSupportedPreviewSizes();
Point preSize = FaceUtil.findBestResolution(previewSizeList, new Point(width, height), false, 0.15f);
parameters.setPreviewSize(preSize.x, preSize.y);
float w = preSize.x;
float h = preSize.y;
float scale = 1.0f;
int tempW = (int) (height * (h / w));
int tempH = (int) (width * (w / h));
if (cameraPreview != null) {
if (tempW >= width) {
cameraPreview.setLayoutParams(new FrameLayout.LayoutParams(tempW, height));
scale = tempW / h;
} else if (tempH >= height) {
cameraPreview.setLayoutParams(new FrameLayout.LayoutParams(width, tempH));
scale = tempH / w;
} else {
cameraPreview.setLayoutParams(new FrameLayout.LayoutParams(width, height));
}
}
if (faceDetector != null) {
faceDetector.setZoomRatio(5f * scale);
faceDetector.setPreviewWidth((int) w);
faceDetector.setPreviewHeight((int) h);
}
parameters.setJpegQuality(100);
if (parameters.getSupportedFocusModes().contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) {
// 连续对焦
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
}
camera.cancelAutoFocus();
int displayOrientation = setCameraDisplayOrientation(cameraPreview.getContext(), faceDetector, camera, cameraId);
camera.setParameters(parameters);
return displayOrientation;
}
Example 13
| Source File: CameraPreview.java From RecordVideo with Apache License 2.0 | 4 votes |
|
/**
* 设置相机参数
*/
public void setupCamera(int cameraId,Camera mCamera) {
haveSize = false;
currentCameraId = cameraId;
// List<Camera.Size> previewSizes = mCamera.getParameters().getSupportedPreviewSizes();
// Log.e("zyf","size:"+previewSizes.size());
// for (int i = 0; i < previewSizes.size(); i++) {
// Camera.Size psize = previewSizes.get(i);
// Log.e("zyf", "PreviewSize,width: " + psize.width + " height: " + psize.height);
// }
// 设置相机方向
CameraHelper.setCameraDisplayOrientation(activity, cameraId, mCamera);
// 设置相机参数
Camera.Parameters parameters = mCamera.getParameters();
// 若应用就是用来录制视频的，不用拍照功能，设置RecordingHint可以加快录制启动速度
// 问题：小米手机录制视频支持的Size和相机预览支持的Size不一样（其他类似的手机可能
// 也存在这个问题），若设置了这个标志位，会使预览效果拉伸，但是开始录制视频，预览
// 又恢复正常，暂时不知道是为什么
// parameters.setRecordingHint(true);
List<String> focusModes = parameters.getSupportedFocusModes();
if (focusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)){
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
}else if(focusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO)){
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
}
List<String> whiteBalance = parameters.getSupportedWhiteBalance();
if (whiteBalance.contains(Camera.Parameters.WHITE_BALANCE_AUTO)){
parameters.setWhiteBalance(Camera.Parameters.WHITE_BALANCE_AUTO);
}
// parameters.setFocusAreas(null);
parameters.setMeteringAreas(null);
int PreviewWidth = 0;
int PreviewHeight = 0;
WindowManager wm = (WindowManager) activity.getSystemService(Context.WINDOW_SERVICE);//获取窗口的管理器
Display display = wm.getDefaultDisplay();//获得窗口里面的屏幕
PreviewWidth = display.getHeight();
PreviewHeight = display.getWidth();
Camera.Parameters mParameters = mCamera.getParameters();
// 选择合适的预览尺寸
List<Camera.Size> sizeList = mParameters.getSupportedPreviewSizes();
// 如果sizeList只有一个我们也没有必要做什么了，因为就他一个别无选择
if (sizeList.size() > 1) {
Iterator<Camera.Size> itor = sizeList.iterator();
while (itor.hasNext()) {
Camera.Size cur = itor.next();
if (cur.width >= PreviewWidth
&& cur.height >= PreviewHeight) {
PreviewWidth = cur.width;
PreviewHeight = cur.height;
haveSize = true;
break;
}
}
if(!haveSize){// 如果未找到和屏幕适配的size则取最大一个
Collections.sort(sizeList, new PreviewOrder());
for (int i = 0; i < sizeList.size(); i++) {
Log.e("zyf","sort:"+sizeList.get(i).height);
}
PreviewWidth = sizeList.get(0).width;
PreviewHeight = sizeList.get(0).height;
}
}
// mVideoSize = CameraHelper.getCameraPreviewSizeForVideo(cameraId, mCamera);
// parameters.setPreviewSize(mVideoSize.width, mVideoSize.height);
parameters.setPreviewSize(PreviewWidth, PreviewHeight); //获得摄像区域的大小
Log.e("zyf", "PreviewCurrentSize,width: " + PreviewWidth + " height: " + PreviewHeight);
mCamera.setParameters(parameters);
if(!focusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)){
mCamera.cancelAutoFocus();
}
}
