I have an ImageView
with a source image set in the xml using the following syntax:
<ImageView
android:id="@+id/articleImg"
style="@style/articleImgSmall_2"
android:src="@drawable/default_m" />
Now I need to change this image programmatically. What I need to do is delete the old image and add a new one though. What I have done is this:
myImgView.setBackgroundResource(R.drawable.monkey);
It works but I noticed android stacks the new image on top of the old one (dont ask me how I found out it's not relevant for the discussion :). I definitely need to get rid of the old one before setting the new image.
How can I achieve that?
Using setBackgroundResource()
method:
myImgView.setBackgroundResource(R.drawable.monkey);
you are putting that monkey in the background.
I suggest the use of setImageResource()
method:
myImgView.setImageResource(R.drawable.monkey);
or with setImageDrawable()
method:
myImgView.setImageDrawable(getResources().getDrawable(R.drawable.monkey));
getResources().getDrawable()
is now deprecated. This is an example how to use now:myImgView.setImageDrawable(getResources().getDrawable(R.drawable.monkey, getApplicationContext().getTheme()));
and how to validate for old API versions:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
myImgView.setImageDrawable(getResources().getDrawable(R.drawable.monkey, getApplicationContext().getTheme()));
} else {
myImgView.setImageDrawable(getResources().getDrawable(R.drawable.monkey));
}