How to convert a Bitmap to Drawable in android?

问题

How can I convert a Bitmap image to Drawable ?

回答1:

Sounds like you want to use BitmapDrawable

From the documentation:

A Drawable that wraps a bitmap and can be tiled, stretched, or aligned. You can create a BitmapDrawable from a file path, an input stream, through XML inflation, or from a Bitmap object.

回答2:

Try this it converts a Bitmap type image to Drawable

Drawable d = new BitmapDrawable(getResources(), bitmap);

回答3:

Having seen a large amount of issues with bitmaps incorrectly scaling when converted to a BitmapDrawable, the general way to convert should be:

Drawable d = new BitmapDrawable(getResources(), bitmap);

Without the Resources reference, the bitmap may not render properly, even when scaled correctly. There are numerous questions on here which would be solved simply by using this method rather than a straight call with only the bitmap argument.

回答4:

Offical Bitmapdrawable documentation

This is sample on how to convert bitmap to drawable

Bitmap bitmap;  
//Convert bitmap to drawable
Drawable drawable = new BitmapDrawable(getResources(), bitmap);
imageView.setImageDrawable(drawable);

回答5:

I used with context

//Convert bitmap to drawable
Drawable drawable = new BitmapDrawable(context.getResources(), bitmap);

回答6:

If you have a bitmap image and you want to use it in drawable, like

Bitmap contact_pic;    //a picture to show in drawable
drawable = new BitmapDrawable(contact_pic); 

回答7:

Just do this:

private void setImg(ImageView mImageView, Bitmap bitmap) {

    Drawable mDrawable = new BitmapDrawable(getResources(), bitmap);
    mImageView.setDrawable(mDrawable);
}

回答8:

1) bitmap to Drawable :

Drawable mDrawable = new BitmapDrawable(getResources(), bitmap);
// mImageView.setDrawable(mDrawable);

2) drawable to Bitmap :

Bitmap mIcon = BitmapFactory.decodeResource(context.getResources(),R.drawable.icon_resource);
// mImageView.setImageBitmap(mIcon);

回答9:

here's another one:

Drawable drawable = RoundedBitmapDrawableFactory.create(context.getResources(), bitmap);

回答10:

covert bit map to drawable in sketchware app using code

    android.graphics.drawable.BitmapDrawable d = new android.graphics.drawable.BitmapDrawable(getResources(), bitmap);

来源：https://stackoverflow.com/questions/2415619/how-to-convert-a-bitmap-to-drawable-in-android