Develop Reference

Is possible convert BitmapDescriptor to Bitmap?

I need to convert BitmapDescriptor to Bitmap.
I can convert a bitmap to BitmapDescriptor with this code:
BitmapDescriptor bd = BitmapDescriptorFactory.fromBitmap(bitmap);
but how can i do the inverse way ?
I need to get BitmapDescriptorFactory.defaultMarker() in bitmap format.

I m not sure but I don't think so it is possible
In my application i have requirement to change default market color ...i got the default marker as bitmap using below code hope it helps u
Drawable d = DrawableUtils.resizeImageToDrawable(
MapViewFragment.mapViewActivity,
Configuration.Display.getDrawableFix(i),
Configuration.MapView.getWaypointIconWidth(),
Configuration.MapView.getWaypointIconHeight());
d.setColorFilter(color, Mode.MULTIPLY);
Bitmap b = ((BitmapDrawable) d).getBitmap();
Canvas myCanvas = new Canvas(b);
int myColor = b.getPixel(0,0);
ColorFilter filter = new LightingColorFilter(myColor, color);
If any questions u can ask

Set ImageView from real path

I have the real path of an image which I am retrieving from my Database.
I want to set the ImageView by using the real path (/storage/emulated/0/DCIM/100MEDIA/image.jpg)
How can this be done?
public void getIMG(){
Cursor res = myDb.GetRow(id);
if(res.moveToFirst()){
String path = res.getString(DatabaseHelper.ROWIMG);
/*img.set'???'*/
}
}

hi try this and see if it helps you
String imagePath = cursor.getString(column_index_data);
File file = new File(imagePath);
file.getAbsolutePath();
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true ;
BitmapFactory.decodeFile(filePath , options);
options.inSampleSize = scaleFactor ;
options.inJustDecodeBounds = false ;
Bitmap newBitmap = BitmapFactory.decodeFile(filePath , options);

The best answer is to use a library like Picasso, to have it load the image in the background and apply it to your ImageView when the image is ready.
If you are determined to re-invent this wheel yourself, use BitmapFactory.decodeFile() on a background thread to read in the file and give you a Bitmap that you can pass to the ImageView.

Getting current image from imageview (android)

I have an ImageView in which I load images from camera and gallery , and I do it using imgview.setimagebitmap(bitmap) ,( and I change the image again and again ) it works fine, but when I try to get the current image back for some processing (applying effect or rotate) it returns me the old image not the current one.
I think the problem is with imgview.setimagebitmap(bitmap).
can I be helped?
I have the following code:
try {
iv_image.buildDrawingCache();
Bitmap source = iv_image.getDrawingCache();
} catch(Exception ex) {
int a;
int b;
a = 11;
b = 12;
}

Can you please try to obtain the batman as follows :
Bitmap bitmap = ((BitmapDrawable)imageView.getDrawable()).getBitmap()

Get Bitmap from ImageView in Android L

I want to get Bitmap from ImageView. I have used following code, but getDrawable() returns null. How to get whole Bitmap from ImageView.
Bitmap bitmap;
if (mImageViewer.getDrawable() instanceof BitmapDrawable) {
bitmap = ((BitmapDrawable) mImageViewer.getDrawable()).getBitmap();
} else {
Drawable d = mImageViewer.getDrawable();
bitmap = Bitmap.createBitmap(d.getIntrinsicWidth(), d.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
d.draw(canvas);
}
storeImage(bitmap,"final.jpeg");

If you just want the Bitmap from a ImageView the following code may work for you:-
Bitmap bm=((BitmapDrawable)imageView.getDrawable()).getBitmap();
Try having the image in all drawable qualities folders (drawable-hdpi/drawable-ldpi etc.)
Could be that the emulator or device your using has a different density and is trying to pull images from another folder.
If you are using an extension in your image other than .png, .jpg, or .gif, It might not recognize other extension types. http://developer.android.com/guide/topics/resources/drawable-resource.html

According to this answer, just do it like this:
imageView.buildDrawingCache();
Bitmap bmap = imageView.getDrawingCache();

For Kotlin:
simply write this code to get the bitmap from an ImageView
imageview.invalidate()
val drawable = imageview.drawable
val bitmap = drawable.toBitmap()

If you are trying to get bitmap from Glide loaded image then this will help you
Drawable dr = ((ImageView) imView).getDrawable();
Bitmap bmp = ((GlideBitmapDrawable)dr.getCurrent()).getBitmap();

Take a picture of the ImagView and convert it to a string to send to the server
ImageView ivImage1 = (ImageView ) findViewById(R.id.img_add1_send );
getStringImage( ( ( BitmapDrawable ) ivImage1.getDrawable( ) ).getBitmap( ) ),
public String getStringImage(Bitmap bm){
ByteArrayOutputStream ba=new ByteArrayOutputStream( );
bm.compress( Bitmap.CompressFormat.PNG,90,ba );
byte[] by=ba.toByteArray();
String encod= Base64.encodeToString( by,Base64.DEFAULT );
return encod;
}

Convert a File Object to Bitmap

I am using Universal-Image-Loader and there is this functionality that access the file cache of the image from sd card. But I don't know how to convert the returned file cache into bitmap. Basically I just wanted to assign the bitmap to an ImageView.
File mSaveBit = imageLoader.getDiscCache().get(easyPuzzle);
Log.d("#ImageValue: ", ""+mSaveBit.toString());
mImageView.setImageBitmap(mSaveBit);
Error: "The method setImageBitmap(Bitmap) in the type ImageView is not applicable for the arguments (File)"

You should be able to use BitmapFactory:
File mSaveBit; // Your image file
String filePath = mSaveBit.getPath();
Bitmap bitmap = BitmapFactory.decodeFile(filePath);
mImageView.setImageBitmap(bitmap);

Define File
String fileName = "/myImage.jpg";
File file = new File(fileName);
get Bitmap of Image
Bitmap bitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
Set Bitmap to ImageView
myImageView.setImageBitmap(bitmap);

You can use this function to get Bitmap from file path
fun getBitmap(filePath:String):Bitmap?{
var bitmap:Bitmap?=null
try{
var f:File = File(path)
var options = BitmapFactory.Options()
options.inPreferredConfig = Bitmap.Config.ARGB_8888
bitmap = BitmapFactory.decodeStream(FileInputStream(f),null,options)
}catch (e:Exception){
}
return bitmap
}

Here is a simple code to create a scaled image for ImageView in this case
- Width:400
- Height:400
final File file = new File(Environment.getExternalStorageDirectory(),"b.jpg");
ImageView img = (ImageView) findViewById(R.id.imageview);
img.setImageBitmap(Bitmap.createScaledBitmap(BitmapFactory.decodeFile(file.getAbsolutePath()),400,400,false));

Kotlin Version
if (requestCode==PICK_IMAGE_REQUEST){
if (data!=null){
selectedfileUri=data.data
if (selectedfileUri!=null && !selectedfileUri!!.path.isEmpty()){
val file = FileUtils.getFile(context,selectedfileUri)
val bitmap = BitmapFactory.decodeFile(file.path)
uimg!!.setImageBitmap(bitmap)
}
}
}

This is not the right question, but if you use flag .cacheInMemory() in ImageLoader setup you can retrive the bitmap without need of recreate at any time using BitmapFactory to safe memory usage .
Just use:
Bitmap bitmap = ImageLoader.getInstance().getMemoryCache()·get("url as key");