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android – Mask ImageView with round corner background

Posted by: admin April 23, 2020 Leave a comment

Questions:

I am having a Custom ListView which contains an ImageView and TextView. Everything is working fine.

What I want is the image is displayed in list are in round corner. From the Webservice i get the images in rectangle shape. But i want to display it in Round corner ImageView as below.

enter image description here

Can anyone show me the way how can i mask the image in round corner?

I already tried by creating the drawable file as below and applied it as src in ImageView. But nothing working for me.

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
   <item>
      <shape android:shape="oval" >
         <solid android:color="#FFFFFF" />
         <padding
            android:bottom="10dp"
            android:left="10dp"
            android:right="10dp"
            android:top="10dp" />
         <corners android:radius="5dp" />
      </shape>
   </item>
   <item>
      <shape android:shape="oval" >
         <padding
            android:bottom="5dp"
            android:left="5dp"
            android:right="5dp"
            android:top="5dp" />
         <solid android:color="#FFFFFF" />
      </shape>
   </item>
</layer-list>

EDITED:

enter image description here

I have Applied below solution:

<FrameLayout
    android:id="@+id/imagemaskframe"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:padding="10dp" >

    <ImageView
        android:id="@+id/op_ivpic"
        android:layout_width="80dp"
        android:layout_height="80dp"
        android:layout_gravity="center"
        android:scaleType="fitXY" />

    <ImageView
        android:id="@+id/iv_mask_op"
        android:layout_width="80dp"
        android:layout_height="80dp"
        android:layout_gravity="center"
        android:adjustViewBounds="true"
        android:scaleType="fitXY"
        android:src="@drawable/imgmask" />

</FrameLayout>
How to&Answers:

I suggest you to use another method:

One FrameLayout and two ImageView can do it.

<FrameLayout>
    <ImageView />  your image 
    <ImageView />  put a image which has a transparent circle in it
</FrameLayout>

then your image can been seen via transparent circle.

Answer:

The best way is to do it in Canvas using PorterDuff operations and/or Shaders. Let’s say your Bitmap is available and stored in mBitmap.

Option 1: Using Shaders.

@Override
public void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    // Load the bitmap as a shader to the paint.
    final Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    final Shader shader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
    paint.setShader(shader);

    // Draw a circle with the required radius.
    final float halfWidth = canvas.getWidth()/2;
    final float halfHeight = canvas.getHeight()/2;
    final float radius = Math.max(halfWidth, halfHeight);
    canvas.drawCircle(halfWidth, halfHeight, radius, paint);
}

Option 2: Using PorterDuff mode.

@Override
public void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    // Create a circular path.
    final float halfWidth = canvas.getWidth()/2;
    final float halfHeight = canvas.getHeight()/2;
    final float radius = Math.max(halfWidth, halfHeight);
    final Path path = new Path();
    path.addCircle(halfWidth, halfHeight, radius, Path.Direction.CCW);

    final Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
    canvas.drawPath(path, paint);
}

Note:

  1. It’s not good to create objects inside onDraw() calls. Hence you should have your paint and shader initially somewhere else. This could probably be done when you set the image bitmap to the view.
  2. Canvas might need to be saved and restored when it is not backed by a hardware texture. The general ideas around it are not mentioned here.
  3. Remember to add setWillNotDraw(false); to the constructor.

Additional References:

  1. https://sriramramani.wordpress.com/2012/12/21/shaders/ has information on Shaders.
  2. http://mxr.mozilla.org/mozilla-central/source/mobile/android/base/ShapedButton.java uses Path to curved button in Firefox for Android.
  3. http://sriramramani.wordpress.com/2012/08/27/constructing-squishy-buttons/ has information on Canvas saving, restoring and special cases for pre-ICS.

Answer:

I’d definite recommend Picasso, as others have. This bit of code for one of my Activity classes did the trick for me. It utilized a color I had defined in color.xml and a simple layout (shown below).

       ImageView profile_image = (ImageView) findViewById(R.id.profile_image);
       mContext = profile_image.getContext();

        // ----------------------------------------------------------------
        // apply rounding to image
        // see: https://github.com/vinc3m1/RoundedImageView
        // ----------------------------------------------------------------
        Transformation transformation = new RoundedTransformationBuilder()
                .borderColor(getResources().getColor(R.color.my_special_orange))
                .borderWidthDp(5)
                .cornerRadiusDp(50)
                .oval(false)
                .build();

        Picasso.with(mContext)
                .load("http://{some_url}.jpg")
                .fit()
                .transform(transformation)
                .into(profile_image);

And the corresponding Layout file:

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="fill_parent"
        android:layout_height="120dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentStart="true"
        android:padding="12dp">


        <ImageView
            android:id="@+id/profile_image"
            android:layout_width="80dp"
            android:layout_height="80dp"
            android:layout_gravity="center"/>

        <LinearLayout
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="80dp"
            android:layout_gravity="center"
            android:padding="12dp">


            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:text="First-Name"
                android:id="@+id/profile_first_name"
                />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:text="Lastname"
                android:id="@+id/profile_last_name" />
        </LinearLayout>



        </LinearLayout>
</RelativeLayout>

Here’s the result:

image

Answer:

A RoundedBitmapDrawable from the v4 Support Library can be applied to an ImageView to achieve the desired effect:

ImageView imageView = (ImageView)findViewById(R.id.imageView);
Bitmap avatar = BitmapFactory.decodeResource(getResources(), R.drawable.avatar);
RoundedBitmapDrawable roundDrawable = RoundedBitmapDrawableFactory.create(getResources(), avatar);
roundDrawable.setCircular(true);
imageView.setImageDrawable(roundDrawable);

Answer:

A simple solution and without a black background!

public class CircleImageView extends ImageView
{
    public CircleImageView(Context context)
    {
        super(context);
    }

    @Override
    protected void onDraw(Canvas canvas)
    {
        // Create a circular path.
        final float halfWidth = canvas.getWidth()/2;
        final float halfHeight = canvas.getHeight()/2;
        final float radius = Math.max(halfWidth, halfHeight);
        final Path path = new Path();
        path.addCircle(halfWidth, halfHeight, radius, Path.Direction.CCW);

        canvas.clipPath(path);

        super.onDraw(canvas);
    }
}

Answer:

Refer the following code, that exactly do what u want.

https://github.com/vinc3m1/RoundedImageView

As you said if you dont want custom view then try the following idea

create 9 patch .png image (like photo frame) with rounded corner and transparent background

then create Relative layout / FrameLayout with two image views as like follows

<RelativeLayout ....>
   <ImageView android:id="@+id/myImage" ..>
   <ImageView android:id="@+id/myRoundCorner" android:src="@drawable/myRoundCornerdFrame">
</RelativeLayout>

make sure that both the image views having same attributes except image source, and also make sure that image view which has source as myRoundCornerFrame should be over(top) the another image view.

Answer:

Just try android-shape-imageview – it should helps you.

Answer:

For those already using Glide, you can achieve the effect with RequestOptions:

RequestOptions requestOptions = new RequestOptions();
requestOptions = requestOptions.transforms(new CenterCrop(), new RoundedCorners(radiusInPixels));
Glide.with(context)
    .load(imageUrl)
    .apply(requestOptions)
    .into(imageView);

Answer:

here what I did ..but my bg img was rectangle .

        ImageView ivLogo;
        ivLogo=(ImageView)fragment.mRoot.findViewById(R.id.iv_offer_logo);

then while setting the image ,

      if(response.result.Partner.logo_url != null &&                 !response.result.Partner.logo_url.equals("")){
                 ivLogo.setPadding(3,3,3,3);
               DisplayImageOptions options =
                 WWFunctions.getDisplayImage(0);
            ImageLoader imageLoader = ImageLoader.getInstance();
                    imageLoader.init(ImageLoaderConfiguration.createDefault(mOfferDetailsFragment.getActivity() ));
          imageLoader.displayImage(response.result.Partner.logo_url, ivLogo, options);
        }

Answer:

make a xml file with name roundimage.xml in drawable hdpi folder and try the following code.

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" 
android:shape="rectangle">
        <solid android:color="@android:color/darker_gray" />
       <corners android:bottomRightRadius="50dip"
        android:bottomLeftRadius="50dip"  
        android:topRightRadius="50dip"
        android:topLeftRadius="50dip"/>
   </shape>

then include the file to your image background as

android:background="@drawable/roundimage"

I request you to change the dimensions and colors as per your requirements.

please use this code

package com.company.app.utils;

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Bitmap.Config;
import android.graphics.PorterDuff.Mode;

public class ImageHelper {
    public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, int pixels) {
        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());
        final RectF rectF = new RectF(rect);
        final float roundPx = pixels;

        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawRoundRect(rectF, roundPx, roundPx, paint);

        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);

        return output;
    }
}

use this as this works.

if you want square cornered then use this

public static Bitmap getRoundedCornerBitmap(Context context, Bitmap input, int pixels ,

int w , int h , boolean squareTL, boolean squareTR, boolean squareBL, boolean squareBR)
{

Bitmap output = Bitmap.createBitmap(w, h, Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final float densityMultiplier = context.getResources().getDisplayMetrics().density;

final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, w, h);
final RectF rectF = new RectF(rect);

//make sure that our rounded corner is scaled appropriately
final float roundPx = pixels*densityMultiplier;

paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);


//draw rectangles over the corners we want to be square
if (squareTL ){
    canvas.drawRect(0, 0, w/2, h/2, paint);
}
if (squareTR ){
    canvas.drawRect(w/2, 0, w, h/2, paint);
}
if (squareBL ){
    canvas.drawRect(0, h/2, w/2, h, paint);
}
if (squareBR ){
    canvas.drawRect(w/2, h/2, w, h, paint);
}

paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(input, 0,0, paint);

return output;
}

Also, I overrode ImageView to put this in so I could define it in xml. You may want to add in some of the logic that the super call makes here, but I’ve commented it as it’s not helpful in my case.

@Override
protected void onDraw(Canvas canvas) {
//super.onDraw(canvas);
    Drawable drawable = getDrawable();

    Bitmap b =  ((BitmapDrawable)drawable).getBitmap() ;
    Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);

    int w = getWidth(), h = getHeight();


    Bitmap roundBitmap=CropImageView.getRoundedCornerBitmap( getContext(), 
    bitmap,10, w, h , true, false,true, false);
    canvas.drawBitmap(roundBitmap, 0,0 , null);
}

Answer:

Expanding on sriramramani’s answer (including the fix for black background), here is my simple ImageView in its entirety:

public class ExampleImageView extends ImageView {
  public ExampleImageView(Context context) {
    super(context);

    init();
  }

  public ExampleImageView(Context context, @Nullable AttributeSet attrs) {
    super(context, attrs);

    init();
  }

  public ExampleImageView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);

    init();
  }

  void init() {
    setWillNotDraw(false);
  }

  @Override
  protected void onDraw(Canvas canvas) {

    int count = canvas.saveLayer(0, 0, getWidth(), getHeight(), null,
            Canvas.MATRIX_SAVE_FLAG |
                    Canvas.CLIP_SAVE_FLAG |
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG |
                    Canvas.FULL_COLOR_LAYER_SAVE_FLAG |
                    Canvas.CLIP_TO_LAYER_SAVE_FLAG);

    super.onDraw(canvas);

    // Create a circular path.
    final float halfWidth = canvas.getWidth()/2;
    final float halfHeight = canvas.getHeight()/2;
    final float radius = Math.max(halfWidth, halfHeight);
    final Path path = new Path();
    path.addCircle(halfWidth, halfHeight, radius, Path.Direction.CCW);

    final Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
    canvas.drawPath(path, paint);

    canvas.restoreToCount(count);
  }
}

One thing- if I remove this line:

setWillNotDraw(false);

Everything still works. Not sure if it is needed?