Develop Reference

Circular ImageView background is actually square and not circular?

I have a question regarding a circular ImageView. When I try to set the background color of my ImageView, it actually ends up being a square and not a circle when in reality I would want the ImageView to be a simple circular ImageView with some text as the image. Here was my attempt.
ImageView imageView = postViewHolder.fourthCommenter;
Bitmap b=Bitmap.createBitmap(30, 30, Bitmap.Config.ARGB_8888);
BitmapShader shader = new BitmapShader(b, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
Paint paint = new Paint();
paint.setShader(shader);
paint.setAntiAlias(true);
Canvas c = new Canvas(b);
c.drawCircle(b.getWidth()/2, b.getHeight()/2, b.getWidth()/2, paint);
c.drawText("+10",30,30,paint);
imageView.setBackgroundColor(ContextCompat.getColor(context, R.color.material_color_grey_200));
imageView.setImageBitmap(b);
All I want is to have the image show a grey circular Imageview with the word "+10" in it. What shows up is a simple square Imageview with no text in it. I can't see what I am doing wrong.
Any help would be apprecaited.
Thanks!
EDIT: Here is an example of what I would want. I want to have an image that looks exactly like the +16 image shown on this photo:

All I want is to have the image show a grey circular Imageview
Try this code
Bitmap picture = BitmapFactory.decodeResource(getResources(), R.mipmap.add_image);
ImageView imageView = (ImageView) findViewById(R.id.imgProfilePicture);
imageView.setImageBitmap(getRoundedBitmap(picture));
public Bitmap getRoundedBitmap(Bitmap bitmap){
Bitmap circleBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
BitmapShader shader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
Paint paint = new Paint();
paint.setShader(shader);
paint.setAntiAlias(true);
Canvas c = new Canvas(circleBitmap);
c.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, paint);
return circleBitmap;
}
Your xml file
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/imgProfilePicture"
android:layout_width="110dp"
android:layout_height="110dp"
android:layout_marginBottom="20dp"
app:civ_border_width="3dp"
app:civ_border_color="#color/light_gray" />
and add this in build.gradle
compile 'de.hdodenhof:circleimageview:2.1.0'
Cirular ImageView Done !

Not sure if it's the proper way to do it , but it should work for your case :
First use this to create the bitmap with the required circle shape :
public Bitmap getCircledBmp(Context mContext,Bitmap bmp){
Canvas canvas = new Canvas(bmp);
int color = ContextCompat.getColor(mContext, R.color.material_color_grey_200);
Paint paint = new Paint();
Rect rect = new Rect(0, 0, bmp.getWidth(), bmp.getHeight());
RectF rectFloat = new RectF(rect);
paint.setAntiAlias(true);
paint.setColor(color);
canvas.drawARGB(0, 0, 0, 0);
canvas.drawOval(rectFloat, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bmp, rect, rect, paint);
return bmp;
}
Then add the text that you want :
public Bitmap drawText(String text, Bitmap bmp, int textSize) {
//text dimensions
TextPaint textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
textPaint.setTextSize(textSize);
textPaint.setColor(Color.BLACK);
textPaint.setTextAlign(Paint.Align.CENTER);
StaticLayout mTextLayout = new StaticLayout(text, textPaint,
bmp.getWidth(), Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);
Canvas canvas = new Canvas(bmp);
//draw text
canvas.save();
canvas.translate((canvas.getWidth() / 2), (canvas.getHeight() / 2) -
((mTextLayout.getHeight() / 2)));
mTextLayout.draw(canvas);
canvas.restore();
return bmp;
}
In the end you should get your desired image like this :
Bitmap bmp = Bitmap.createBitmap(100,100,Bitmap.Config.ARGB_8888); //change the values whatever you like
ImageView imageView = postViewHolder.fourthCommenter;
imageview.setImageBitmap(drawText("+10",getCircledBmp(this,bmp),30));

how to set a custom background color in a rounded imageview programmatically android

I have set a rounded image view Rounded image view and i don't know how to set a background color for it .I had tried set background method to fill the color in the image.
public Bitmap roundCornerImage(Bitmap raw, float round) {
int width = raw.getWidth();
int height = raw.getHeight();
Bitmap result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(result);
canvas.drawARGB(0, 0, 0, 0);
final Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setColor(Color.parseColor("#000000"));
final Rect rect = new Rect(0, 0, width, height);
final RectF rectF = new RectF(rect);
canvas.drawRoundRect(rectF, round, round, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(raw, rect, rect, paint);
return result;
}

canvas.drawARGB(0, 0, 0, 0)
This line will draw a canvas of black color. If you just want to change the color, change the rgb values. For e.g
canvas.drawARGB(255, 0, 0, 0)
will draw a red color bitmap canvas.

ImageView imageView = (ImageView) findViewById(imageViewId);
// Set the background for the ImageView
imageView.setBackgroundResource(R.drawable.yourdrawableImage);
// set background color
backgroundImg.setBackgroundColor(Color.parseColor("#FFFFFF"));

setBackgroundColor(Color.rgb(100, 100, 50));
Or else change the background color of parent layout.

How to mask only certain parts of a bitmap in Android

I want to be able to use the following image to mask other bitmap. So basically, I'm trying to get the mask image and replace it's black content with another bitmap. Like this for example:
I'm able to use this mask and create a round version of the original bitmap, but that does not retain that orange border around it. Any thoughts on how I can accomplish this effect? Thanks.
The code that I am using (that only creates a round image) is the following:
private static Bitmap applyMask(ImageView imageView, Bitmap mainImage) {
Canvas canvas = new Canvas();
Bitmap result result = Bitmap.createBitmap(50, 50, Bitmap.Config.ARGB_8888);
canvas.setBitmap(result);
Paint paint = new Paint();
// resize image fills the whole canvas
canvas.drawBitmap(mainImage, null, new Rect(0, 0, 50, 50), paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
canvas.drawBitmap(sMaskImage, 0, 0, paint);
paint.setXfermode(null);
return result;
}

I use below code snipped to set masked images, this sample "bm" is my bitmap and "mMaskSource" is the resource id of mask object position in my drawable folder.
Bitmap mask = BitmapFactory.decodeResource(getResources(), mMaskSource);
Bitmap result = Bitmap.createBitmap(mask.getWidth(), mask.getHeight(),
Config.ARGB_8888);
Canvas mCanvas = new Canvas(result);
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
bm = Bitmap.createScaledBitmap(bm, mask.getWidth(), mask.getHeight(),
true);
mCanvas.drawBitmap(bm, 0, 0, null);
mCanvas.drawBitmap(mask, 0, 0, paint);
paint.setXfermode(null);
And finally you can use "result" bitmap object however you wish.

How can i increase and decrease width and height name of the icon on Google map-v2?

I am getting name of the marker on map with clarity but I want increase width and height of the marker name on map.
When I wrote marker name as 'yyyyy' then the text cutting and showing on map like 'uuuuu'.
How can I proceed? Any related links or sample code for this..
my code
private Bitmap drawTitleOnMarkerIcon(MarkingInfo markingInfo) {
Bitmap bm = BitmapFactory.decodeResource(getResources(),
AddLocationTypeIcon.getIcon(markingInfo.getType())).copy(Bitmap.Config.ARGB_8888, true);
Canvas canvas = new Canvas(bm);
Paint paint = new Paint();
paint.setColor(Color.DKGRAY);
paint.setTextSize(18f);
paint.setFakeBoldText(true);
paint.setTextAlign(Align.LEFT);
paint.setFilterBitmap(true);
paint.setAntiAlias(true);
paint.setDither(true);
paint.setFilterBitmap(true);
canvas.drawText(markingInfo.getName(), 0, bm.getHeight(), paint);
BitmapDrawable draw = new BitmapDrawable(getResources(), bm);
return draw.getBitmap();
}

Android : Constructing bitmap from RECT

Can we construct a bitmap from a rect.
I draw a bitmap in a rect and want strokes drawn on the bitmap image become part of the image.
I am wondering if I can construct a bitmap from a Rect so the new bitmap has the old image and the strokes as a single image.
Thank You

You can always take a canvas to help you create an already decoded bitmap the way you want:
Bitmap originalBmp = null;//Here goes original Bitmap...
ImageView img = null;//Any imageview holder you are using...
Bitmap modifiedBmp = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888);//Configure with your proper size and color
Canvas canvas = new Canvas(modifiedBmp);
//At this point the modified bitmap has the original one, starting from here, you can add any overlay you want...
canvas.drawBitmap(originalBmp, 0, 0, new Paint());
//And do all the other modifications you want here...
canvas.drawLines(new float[]{}, null);
canvas.drawCircle(x, y, radius, null);
//At this point the modified bitmap will have anything you added
img.setImageBitmap(modifiedBmp);
// IF YOU ARE OVERRIDING ONDRAW METHOD
public void onDraw(Canvas canvas){
//Here DO your DRAW BITMAP NOTE: paint must be already created...
canvas.drawBitmap(bt, 0, 0, paint);
paint.setColor(Color.BLACK);
paint.setStrokeWidth(3);
canvas.drawRect(30, 30, 80, 80, paint);
super.onDraw(canvas);
}
Regards!

Yes you can , Using canvas you can draw something on your old bimtap .
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
// do some canvas drawing
canvas.drawBitmap(bitmap, rect, rect, paint);