Changing ImageView source

Question

I have an ImageView with a source image set in the xml using the following syntax       lt ImageView        android id    id articleImg        style   style articleImgSmall 2        android src   drawable default m    gt    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

User · Answer

Just write a method for changing imageview  public void setImage final Context mContext  final ImageView imageView  int picture        if  mContext    null  amp  amp  imageView    null                try                       if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP                                imageView setImageDrawable mContext getResources   getDrawable picture  mContext getApplicationContext   getTheme                    else                               imageView setImageDrawable mContext getResources   getDrawable picture                            catch  Exception e                        e printStackTrace

User · Answer

Supplemental visual answer ImageView  setImageResource    standard method  aspect ratio is kept   View  setBackgroundResource    image is stretched   Both  My fuller answer is here

User · Answer

myImgView setImageResource R drawable monkey     is used for setting image in the current image view  but if want to delete this image  then you can use this code like     ImageView  v findViewById R id ImageView1   setImageResource 0     now this will delete the image from your image view  because it has set the resources value to zero

User · Answer

If you want to set in imageview an image that is inside the mipmap dirs you can do it like this   myImageView setImageDrawable getResources   getDrawable R mipmap my picture

User · Answer

get ID of ImageView as  ImageView imgFp    ImageView  findViewById R id imgFp     then Use   imgFp setImageResource R drawable fpscan     to set source image programatically instead from XML

User · Answer

Changing ImageView source  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         With new android API 22 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  gt   Build VERSION CODES LOLLIPOP         myImgView setImageDrawable getResources   getDrawable R drawable monkey  getApplicationContext   getTheme           else        myImgView setImageDrawable getResources   getDrawable R drawable monkey

User · Answer

You re supposed to use setImageResource instead of setBackgroundResource

User · Answer

Or try this one  For me it s working fine   imageView setImageDrawable ContextCompat getDrawable this  image

[android] Changing ImageView source

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