ImgeView.setOnTouchListener(new OnTouchListener(){
@Override
public boolean onTouch(View v, MotionEvent event) {
switch(event.getAction()){
case MotionEvent.ACTION_DOWN:
//Finger placed on screen
event.getX();
event.getY();
break;
case MotionEvent.ACTION_MOVE:
//Finger is moving
event.getX();
event.getY();
break;
case MotionEvent.ACTION_POINTER_DOWN:
//Second finger is touching screen
break;
}
return false;
}
});
How to add tap listener to the displayed image and bind XY axis to the image
-
30-05-2022 - |
سؤال
I would like to display an .jpg
image into the screen and add Listener
to this image which will can detect the location of tap on that image. I would like to bind XY axis to the image.
Example:
To display an image I should use:
private ImageView imgView;
imgView = (ImageView) findViewById(R.id.imageViewId);
imgView.setImageBitmap(BitmapFactory.decodeFile("pathToImageFile"));
To add listener to the image
iv.setOnClickListener(clickListener);
But how to define that listener which will detect the click coordinates (x,y)
but the coordinates should be binded to the image not to the screen.
المحلول
لا تنتمي إلى StackOverflow