Clear Image in the Imageview

Question

I went through many threads but i could not get the answer yet .

I am setting an image to the imageView programmatically as

imageview.setBackgroundResource(R.Drawable.image);

if i set image as the above , will the image get cleared if i give

imageview.setImageDrawable(null);

what does imageview.setBackgroundDrawable(null) meant ?

What is the difference between

imageview.setImageDrawable(null);

and

imageview.setImageBitmap(null);

and

imageview.setBackgroundDrawable(null);

Solution 1

setBackgroundDrawable() is deprecated. You should use setBackground instead.

Basically the difference is the parameter. In setImageBitmap() you have to pass a Bitmap object. In setImageDrawable() you have to pass a Drawable object. setBackground just change the background of the imageview.

The imageview can have a background and a image content. If you are defining the background and want to clear the imageview, you should use setBackground(null).

Solution 2

Did you tried with :

imageview.setImageResource(android.R.color.transparent);

Solution 3

There are many ways to inflate & clear ImageView

1. If you have inflated using,

   imageView.setImageDrawable(ContextCompat.getDrawable(context,R.drawable.xyz));

   then clear using,

   imageView.setImageDrawable(null);

2. If you have inflated using,

   imageView.setBackgroundResource(R.drawable.xyz);

   then clear using,

   imageView.setBackground(null);

So basically if you inflate ImageDrawable, then you remove ImageDrawable. If you inflate backgroung, then you remove background. Similarly for ImageBitmap.

Solution 4

I had same problem. Here,

imageview.setImageDrawable(null);

will clear the the background of an ImageView,

imageview.setImageBitmap(null);

will clear the ImageBitmap from an ImageView, and

imageview.setBackgroundResource(R.Drawable.image);

will set the Images for your path e.g your path (R.Drawable.image)

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