I have a ListView in which there is an ImageView, the image in the ImageView gets loaded dynamically after its fetched from the server.
Now, I want these images, of any size, to fit into a circular frame, how to do that?
Here's a sample pic of what I want
With the help of previous answer I came up with this solution.Hope it help others:
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.os.Bundle;
import android.widget.ImageView;
public class CircleImage extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.circle_layout);
ImageView img1 = (ImageView) findViewById(R.id.imageView1);
Bitmap bm = BitmapFactory.decodeResource(getResources(),
R.drawable.hair_four);
Bitmap resized = Bitmap.createScaledBitmap(bm, 100, 100, true);
Bitmap conv_bm = getRoundedRectBitmap(resized, 100);
img1.setImageBitmap(conv_bm);
// TODO Auto-generated method stub
}
public static Bitmap getRoundedRectBitmap(Bitmap bitmap, int pixels) {
Bitmap result = null;
try {
result = Bitmap.createBitmap(200, 200, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(result);
int color = 0xff424242;
Paint paint = new Paint();
Rect rect = new Rect(0, 0, 200, 200);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawCircle(50, 50, 50, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
} catch (NullPointerException e) {
} catch (OutOfMemoryError o) {
}
return result;
}
}
Try this code:
public static Bitmap getRoundedRectBitmap(Bitmap bitmap, int pixels) {
try {
result = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(),
Bitmap.Config.ARGB_8888);
canvas = new Canvas(result);
color = 0xff424242;
paint = new Paint();
rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
rectF = new RectF(rect);
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);
} catch (NullPointerException e) {
// return bitmap;
} catch (OutOfMemoryError o){}
return result;
}
If you want an actual circle then you can pass 100px as parameter.
Update
There is a CircleImageView available on Github.
You can get latest version from Maven repository as add as a gradle dependency.
There are lots of tutorial regarding this. I think it will help.
https://github.com/lopspower/CircularImageView
We can manage the height and width of an image from xml code and draw circle/oval from java code like
<ImageView
android:id="@+id/imageView1"
android:layout_width="@dimen/width"
android:layout_height="@dimen/height"
/>
for oval view
ImageView img1 = (ImageView) findViewById(R.id.imageView1);
Bitmap bm = BitmapFactory.decodeResource(getResources(),
R.drawable.user_image);
Bitmap conv_bm = getRoundedBitmap(bm);
img1.setImageBitmap(conv_bm);
public static Bitmap getRoundedBitmap(Bitmap bitmap)
{
final Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(output);
final int color = Color.RED;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawOval(rectF, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
bitmap.recycle();
return output;
}
}
public static Bitmap getCircleBitmap(Bitmap bitmap) {
final Bitmap circuleBitmap = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getWidth(), Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(circuleBitmap);
final int color = Color.RED;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getWidth());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawOval(rectF, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
bitmap.recycle();
return circuleBitmap;
}
来源:https://stackoverflow.com/questions/14050813/how-to-make-an-image-fit-into-a-circular-frame-in-android