/**
* Get a new instance of the dialog fragment with an image in it
*
* @param arg argument for the bundle
* @param bmp {@link Bitmap} image to be put in the dialog
* @param activity {@link Activity} get the parent activity
* @return the fragment to be shown
*/
public static ImageDialogFragment newInstance(int arg, Bitmap bmp, Activity activity) {
frag = new ImageDialogFragment();
Bundle args = new Bundle();
args.putInt("count", arg);
frag.setArguments(args);
// Get width and height of device
act = activity;
displaymetrics = new DisplayMetrics();
frag.setBitmap(bmp);
fullScreen();
return frag;
}
@Override
public View onCreateView(
final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.image_dialog_fragment, container, false);
ImageView mImageView = (ImageView) view.findViewById(R.id.image_dialog);
if (orient != getResources().getConfiguration().orientation) {
if (orient == LANDSCAPE) {
orient = PORTRAIT;
fullScreen();
} else if (orient == PORTRAIT) {
orient = LANDSCAPE;
fullScreen();
} else {
orient = getResources().getConfiguration().orientation;
}
}
mImageView.setImageBitmap(mBitmap);
mImageView.setOnTouchListener(
new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
ImageView view = (ImageView) v;
// Handle touch events here...
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
savedMatrix.set(matrix);
start.set(event.getX(), event.getY());
mode = DRAG;
break;
case MotionEvent.ACTION_POINTER_DOWN:
oldDist = spacing(event);
if (oldDist > 10f) {
savedMatrix.set(matrix);
midPoint(mid, event);
mode = ZOOM;
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_POINTER_UP:
mode = NONE;
break;
case MotionEvent.ACTION_MOVE:
if (mode == DRAG) {
matrix.set(savedMatrix);
matrix.postTranslate(event.getX() - start.x, event.getY() - start.y);
} else if (mode == ZOOM) {
float[] f = new float[9];
float newDist = spacing(event);
if (newDist > 10f) {
matrix.set(savedMatrix);
float scale = newDist / oldDist;
matrix.postScale(scale, scale, mid.x, mid.y);
}
matrix.getValues(f);
float scaleX = f[Matrix.MSCALE_X];
float scaleY = f[Matrix.MSCALE_Y];
if (scaleX <= 0.7f) {
matrix.postScale((0.7f) / scaleX, (0.7f) / scaleY, mid.x, mid.y);
} else if (scaleX >= 2.5f) {
matrix.postScale((2.5f) / scaleX, (2.5f) / scaleY, mid.x, mid.y);
}
}
break;
}
limitDrag(matrix, view, view.getWidth(), view.getHeight());
view.setImageMatrix(matrix);
return true;
}
});
return view;
}
