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我在我的應用程序中使用相機拍攝圖像,當切換到前置相機時,圖像爲mirrorrd。我使用此代碼拍攝照片(旋轉並補償鏡子) 使用此代碼後置攝像頭即可(無需鏡像和旋轉)! 但前置攝像頭的結果是類似這樣的畫面:使用方向圖像圖像正面或背面相機
這種方法得到前置攝像頭ID: (我用CameraInfo獲得前置攝像頭ID併發送ID導致活動)
public int getFrontFacingCameraId() {
int numCameras = getNumberOfCameras();
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
for (int cameraId = 0; cameraId < numCameras; cameraId++) {
Camera.getCameraInfo(cameraId, cameraInfo);
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
return cameraId;
}
}
return 0;
}
此代碼爲旋轉:(使用基質)
private Bitmap rotateImage(Bitmap source, float angle) {
Matrix matrix = new Matrix();
matrix.postRotate(angle);
return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), matrix, true);
return source;
}
}
和在活動RESU此代碼使用LT:
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case PICTURE_RESULT:
if (resultCode == Activity.RESULT_OK) {
try {
Bitmap thumbnail = MediaStore.Images.Media.getBitmap(getContentResolver(), IMG_URI);
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
int rotation = this.getWindowManager().getDefaultDisplay().getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0:
degrees = 90;
break;
case Surface.ROTATION_90:
degrees = 180;
break;
case Surface.ROTATION_180:
degrees = 270;
break;
case Surface.ROTATION_270:
degrees = 360;
break;
}
int displayOrientation;
if (cameraInfo.facing == getFrontFacingCameraId()) {
displayOrientation = (cameraInfo.orientation + degrees) % 360;
displayOrientation = (360 - displayOrientation) % 360;
} else {
displayOrientation = (cameraInfo.orientation - degrees + 360) % 360;
}
USER_CIRCLE_PHOTO.setImageBitmap(Bitmap.createScaledBitmap(rotateImage(thumbnail, displayOrientation), 480, 800, false));
getContentResolver().delete(IMG_URI, null, null);
} catch (Exception e) {
displayToast(this, "خطای گرفتن عکس:" + "\n" + e.toString());
}
}
}
}
我怎樣才能解決這個問題 謝謝
當改成這樣:
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
回和相機不行!
不適合我! –