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 - |
Question
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.
Solution
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