MyHyvesBookPlus/TheReturnOfTheMyHyvesBookPlus
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Image preview working

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This commit is contained in:
Felix Atsma
2017-06-28 10:25:54 +02:00
parent d3395f3e9b
commit 2db1254750
3 changed files with 9 additions and 82 deletions
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24
app/MyHyvesBookPlusStagram/app/src/main/java/nl/myhyvesbookplus/tagram/CameraFragment.java
View File

@@ -4,7 +4,6 @@ import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.hardware.Camera;
import android.hardware.Camera.PictureCallback;
import android.net.Uri;
@@ -46,7 +45,6 @@ public class CameraFragment extends Fragment implements PostUploader.PostUploadL
private Camera mCamera;
private CameraPreview mPreview;
private byte[] mPhotoRaw;
private Bitmap mPhoto;
private int facing = Camera.CameraInfo.CAMERA_FACING_BACK;
@@ -99,7 +97,6 @@ public class CameraFragment extends Fragment implements PostUploader.PostUploadL
final RelativeLayout pictureButtons = (RelativeLayout) view.findViewById(R.id.picture_taken_buttons);
final RelativeLayout filterButtons = (RelativeLayout) view.findViewById(R.id.filter_buttons);
final RelativeLayout mCameraLayout = (RelativeLayout) view.findViewById(R.id.camera_preview);
// final RelativeLayout mImageTaken = (RelativeLayout) view.findViewById(R.id.picture_view);
mCameraLayout.addView(mPreview);
@@ -131,13 +128,9 @@ public class CameraFragment extends Fragment implements PostUploader.PostUploadL
mCamera.takePicture(null, null, new PictureCallback() {
@Override
public void onPictureTaken(byte[] data, Camera camera) {
// Bitmap bmp = rotate(BitmapFactory.decodeByteArray(data, 0, data.length, null), 90);
// mPhoto = bmp;
mPhoto = BitmapFactory.decodeByteArray(data, 0, data.length, null);
// mPhotoRaw = data;
PicturePreview mPicPreview = new PicturePreview(getActivity().getBaseContext(), mPhoto);
// PicturePreview mPicPreview = new PicturePreview(getActivity().getBaseContext(), mPhotoRaw);
mPicPreview.setId(R.id.pic_preview);
mCameraLayout.addView(mPicPreview);
@@ -145,7 +138,6 @@ public class CameraFragment extends Fragment implements PostUploader.PostUploadL
filterButtons.setVisibility(View.VISIBLE);
filterButtons.bringToFront();
// mPicPreview.invalidate();
switchButtons(view);
}
});
@@ -158,6 +150,7 @@ public class CameraFragment extends Fragment implements PostUploader.PostUploadL
view.findViewById(R.id.comment_box).setClickable(true);
view.findViewById(R.id.comment_box).setVisibility(View.VISIBLE);
view.findViewById(R.id.comment_box).bringToFront();
((FloatingActionButton)view.findViewById(R.id.upload_button)).hide();
}
});
@@ -173,7 +166,6 @@ public class CameraFragment extends Fragment implements PostUploader.PostUploadL
upload.uploadPicture(new BitmapPost(((PicturePreview)view.findViewById(R.id.pic_preview)).getPicture(), comment));
mPhoto.recycle();
// mPhoto = null;
filterButtons.setVisibility(View.GONE);
switchButtons(view);
@@ -204,7 +196,6 @@ public class CameraFragment extends Fragment implements PostUploader.PostUploadL
PicturePreview.filterPrev();
PicturePreview mPicPreview = new PicturePreview(getActivity().getBaseContext(), mPhoto);
// PicturePreview mPicPreview = new PicturePreview(getActivity().getBaseContext(), mPhotoRaw);
mPicPreview.setId(R.id.pic_preview);
mCameraLayout.addView(mPicPreview);
@@ -223,7 +214,6 @@ public class CameraFragment extends Fragment implements PostUploader.PostUploadL
PicturePreview.filterNext();
PicturePreview mPicPreview = new PicturePreview(getActivity().getBaseContext(), mPhoto);
// PicturePreview mPicPreview = new PicturePreview(getActivity().getBaseContext(), mPhotoRaw);
mPicPreview.setId(R.id.pic_preview);
mCameraLayout.addView(mPicPreview);
@@ -279,20 +269,13 @@ public class CameraFragment extends Fragment implements PostUploader.PostUploadL
public void onDestroyView() {
super.onDestroyView();
int padding = 16; // 6 dps
int padding = 16;
float scale = getResources().getDisplayMetrics().density;
int dp = (int) (padding * scale + 0.5f);
((AppCompatActivity)getActivity()).getSupportActionBar().show();
getActivity().findViewById(R.id.content).setPadding(dp,dp,dp,dp);
}
public static Bitmap rotate(Bitmap bmp, int degree) {
Matrix mtx = new Matrix();
mtx.postRotate(degree);
return Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), mtx, true);
}
public static Camera getCameraInstance(int facing) {
Camera c = null;
try {
@@ -313,18 +296,15 @@ public class CameraFragment extends Fragment implements PostUploader.PostUploadL
public void switchButtons(View view) {
RelativeLayout pictureButtons = (RelativeLayout) view.findViewById(R.id.picture_taken_buttons);
FloatingActionButton upload = (FloatingActionButton) view.findViewById(R.id.upload_button);
// FloatingActionButton save = (FloatingActionButton) view.findViewById(R.id.save_button);
if (((Integer)upload.getVisibility()).equals(View.VISIBLE)) {
upload.hide();
// save.hide();
view.findViewById(R.id.picture_button).setVisibility(View.VISIBLE);
view.findViewById(R.id.switch_camera_button).setVisibility(View.VISIBLE);
} else {
pictureButtons.bringToFront();
upload.show();
// save.show();
view.findViewById(R.id.picture_button).setVisibility(View.GONE);
view.findViewById(R.id.switch_camera_button).setVisibility(View.GONE);

8
app/MyHyvesBookPlusStagram/app/src/main/java/nl/myhyvesbookplus/tagram/CameraPreview.java
View File

@@ -34,21 +34,14 @@ public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
if (mHolder.getSurface() == null){
// preview surface does not exist
return;
}
// stop preview before making changes
try {
mCamera.stopPreview();
} catch (Exception e){
// ignore: tried to stop a non-existent preview
}
// set preview size and make any resize, rotate or
// reformatting changes here
// start preview with new settings
try {
mCamera.setPreviewDisplay(mHolder);
mCamera.startPreview();
@@ -60,6 +53,7 @@ public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.d(TAG, "surfaceDestroyed: CAMERA DESTROYED");
mCamera.stopPreview();
mCamera.release();
}

59
app/MyHyvesBookPlusStagram/app/src/main/java/nl/myhyvesbookplus/tagram/PicturePreview.java
View File

@@ -26,36 +26,20 @@ public class PicturePreview extends SurfaceView implements SurfaceHolder.Callbac
private static int currentFilter = FILTER_NONE;
private BitmapFactory.Options options = new BitmapFactory.Options();
private int imageHeight;
private int imageWidth;
Bitmap picture;
Bitmap filterPicture;
byte[] data;
public PicturePreview(Context context, Bitmap bmp) {
// public PicturePreview(Context context, byte[] data) {
super(context);
setWillNotDraw(false);
// this.data = data;
// options.inJustDecodeBounds = true;
picture = Bitmap.createScaledBitmap(bmp, bmp.getWidth() / 4, bmp.getHeight() / 4, false);
// picture = BitmapFactory.decodeByteArray(data, 0, data.length, options);
// imageHeight = options.outHeight;
// imageWidth = options.outWidth;
picture = Bitmap.createScaledBitmap(bmp, bmp.getWidth() / 2, bmp.getHeight() / 2, false);
Log.d(TAG, "PicturePreview: " + bmp.getWidth() + " " + bmp.getHeight());
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
// options.inSampleSize = 4; //calculateInSampleSize(options, canvas.getWidth(), canvas.getHeight());
// options.inJustDecodeBounds = false;
// picture = BitmapFactory.decodeByteArray(data, 0, data.length, options);
// picture = Bitmap.createBitmap(bmp);
// bmp.recycle();
ColorMatrix cm = new ColorMatrix();
Paint paint = new Paint();
ColorMatrixColorFilter filter;
@@ -63,12 +47,10 @@ public class PicturePreview extends SurfaceView implements SurfaceHolder.Callbac
switch (currentFilter) {
case FILTER_NONE:
// canvas.rotate(90);
canvas.drawBitmap(rotate(picture, 90), 0, 0, null);
filterPicture = rotate(picture, 90);
break;
case FILTER_SEPIA:
// filterPicture = Bitmap.createBitmap(picture.getWidth() / 4, picture.getHeight() / 4, Bitmap.Config.ARGB_8888);
filterPicture = Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), Bitmap.Config.ARGB_8888);
Log.d(TAG, "onDraw: " + Integer.toString(canvas.getWidth()));
@@ -80,29 +62,21 @@ public class PicturePreview extends SurfaceView implements SurfaceHolder.Callbac
filter = new ColorMatrixColorFilter(cm);
paint.setColorFilter(filter);
saveCanvas.setBitmap(filterPicture);
// saveCanvas.rotate(90);
// canvas.rotate(90);
saveCanvas.drawBitmap(rotate(picture, 90), 0, 0, paint);
canvas.drawBitmap(rotate(picture, 90), 0, 0, paint);
break;
case FILTER_BW:
// filterPicture = Bitmap.createBitmap(picture.getWidth() / 4, picture.getHeight() / 4, Bitmap.Config.ARGB_8888);
filterPicture = Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), Bitmap.Config.ARGB_8888);
// filterPicture = Bitmap.createBitmap(1920, 1440, null);
cm.setSaturation(0);
filter = new ColorMatrixColorFilter(cm);
paint.setColorFilter(filter);
saveCanvas.setBitmap(filterPicture);
// saveCanvas.rotate(90);
// canvas.rotate(90);
saveCanvas.drawBitmap(rotate(picture, 90), 0, 0, paint);
canvas.drawBitmap(rotate(picture, 90), 0, 0, paint);
break;
case FILTER_NEG:
// filterPicture = Bitmap.createBitmap(picture.getWidth() / 4, picture.getHeight() / 4, Bitmap.Config.ARGB_8888);
filterPicture = Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), Bitmap.Config.ARGB_8888);
float[] neg = {-1f,0f,0f,0f,255f,
@@ -114,8 +88,6 @@ public class PicturePreview extends SurfaceView implements SurfaceHolder.Callbac
filter = new ColorMatrixColorFilter(cm);
paint.setColorFilter(filter);
saveCanvas.setBitmap(filterPicture);
// saveCanvas.rotate(90);
// canvas.rotate(90);
saveCanvas.drawBitmap(rotate(picture, 90), 0, 0, paint);
canvas.drawBitmap(rotate(picture, 90), 0, 0, paint);
break;
@@ -164,30 +136,8 @@ public class PicturePreview extends SurfaceView implements SurfaceHolder.Callbac
return Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), mtx, true);
}
public static int calculateInSampleSize(
BitmapFactory.Options options, int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
final int halfHeight = height / 2;
final int halfWidth = width / 2;
// Calculate the largest inSampleSize value that is a power of 2 and keeps both
// height and width larger than the requested height and width.
while ((halfHeight / inSampleSize) >= reqHeight
&& (halfWidth / inSampleSize) >= reqWidth) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
public Bitmap getPicture() {
picture.recycle();
return filterPicture;
}
@@ -201,5 +151,8 @@ public class PicturePreview extends SurfaceView implements SurfaceHolder.Callbac
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.d(TAG, "surfaceDestroyed: PICTURE DESTROYED");
picture.recycle();
filterPicture.recycle();
}
}