Example usage for android.graphics Canvas drawCircle

Introduction

In this page you can find the example usage for android.graphics Canvas drawCircle.

Prototype

public void drawCircle(float cx, float cy, float radius, @NonNull Paint paint)

Source Link

Document

Draw the specified circle using the specified paint.

Usage

From source file:Main.java

public static Bitmap makeCircleBitmap(Bitmap original) {
    final int width = original.getWidth();
    final int height = original.getHeight();
    final float radius = Math.min(width, height) / 2;

    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

    Paint paint = new Paint();
    paint.setAntiAlias(true);/*from  w  ww.  j ava2  s  . c  o  m*/
    paint.setShader(new BitmapShader(original, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP));

    Canvas canvas = new Canvas(bitmap);
    canvas.drawCircle(radius, radius, radius, paint);

    original.recycle();
    return bitmap;
}

From source file:Main.java

public static Bitmap getRoundedImage(Bitmap bitmap) {
    Bitmap circleBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);

    BitmapShader shader = new BitmapShader(bitmap, TileMode.CLAMP, TileMode.CLAMP);
    Paint paint = new Paint();
    paint.setShader(shader);//from   w  w  w .  j a v  a 2 s  .com

    Canvas c = new Canvas(circleBitmap);
    c.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, paint);

    return circleBitmap;
}

From source file:Main.java

/**
 * create a circle from cutout from a bitmap.
 * does not alter sizes./* w ww .jav  a  2  s. com*/
 *
 * @param bitmap the bitmap
 * @see #cutCircleFromBitmap(String, int)
 * @return a bitmap circle cutout
 */
public static Bitmap roundBitMap(Bitmap bitmap) {
    Bitmap circleBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);

    BitmapShader shader = new BitmapShader(bitmap, TileMode.CLAMP, TileMode.CLAMP);
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);

    paint.setShader(shader);

    Canvas c = new Canvas(circleBitmap);

    c.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, paint);

    return circleBitmap;
}

From source file:Main.java

/**
 * Create a bitmap which is wrapped to circle
 * (similar to what you can see in G+ profile pic.)
 *
 * @param bitmap Original Bitmap/*from  ww w.j  a va 2  s .  c  om*/
 * @return Circled bitmap
 */
public static Bitmap createCircleBitmap(Bitmap bitmap) {
    final int width = bitmap.getWidth();
    final int height = bitmap.getHeight();

    BitmapShader bitmapShader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
    Paint bitmapPaint = new Paint();
    bitmapPaint.setAntiAlias(true);
    bitmapPaint.setShader(bitmapShader);

    Bitmap output = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);
    canvas.drawCircle(width / 2, height / 2, Math.min(width, height) / 2, bitmapPaint);

    return output;
}

From source file:Main.java

public static Bitmap circleBitmap(final Bitmap source) {
    int width = source.getWidth();
    int height = source.getHeight();

    Paint paint = new Paint();
    paint.setAntiAlias(true);/*  w  ww  .j av  a 2 s.  c  om*/
    paint.setColor(Color.WHITE);

    Bitmap clipped = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Canvas canvas = new Canvas(clipped);
    final float radius = width > height ? height / 2 : width / 2;
    canvas.drawCircle(width / 2, height / 2, radius, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));

    Bitmap rounded = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    canvas = new Canvas(rounded);
    canvas.drawBitmap(source, 0, 0, null);
    canvas.drawBitmap(clipped, 0, 0, paint);

    source.recycle();
    clipped.recycle();

    return rounded;
}

From source file:Main.java

public static Bitmap getUnreadMarker(int width, int radius, int color) {
    if (width <= 0) {
        return null;
    }/*from   www  . j  av  a2 s. com*/
    Bitmap dest = Bitmap.createBitmap(width, width, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(dest);
    Paint p = new Paint();
    p.setColor(color);
    p.setAntiAlias(true);
    canvas.drawCircle(width / 2, width / 2, radius, p);
    return dest;
}

From source file:com.achep.acdisplay.graphics.IconFactory.java

@NonNull
private static Bitmap createEmptyIcon(@NonNull Resources res, int size) {
    Paint paint = new Paint();
    paint.setAntiAlias(true);// w  ww.jav  a  2  s  .c  o m
    paint.setColor(0xDDCCCCCC); // white gray

    final float radius = size / 2f;

    Bitmap icon = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_4444);
    Canvas canvas = new Canvas(icon);
    canvas.drawCircle(radius, radius, radius, paint);

    Drawable drawable = res.getDrawable(R.drawable.ic_action_warning_white);
    drawable.setBounds(0, 0, size, size);
    drawable.draw(canvas);

    return icon;
}

From source file:Main.java

public static Bitmap getRoundBitmap(Bitmap bitmap) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    Bitmap out = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Canvas canvas = new Canvas(out);
    Paint paint = new Paint();
    paint.setColor(Color.WHITE);//from  ww w. j  av a2s .  c o  m
    paint.setAntiAlias(true);
    canvas.drawCircle(width / 2, height / 2, width / 2, paint);
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    Rect rect = new Rect(0, 0, width, height);
    canvas.drawBitmap(bitmap, rect, rect, paint);
    return out;
}

From source file:Main.java

public static Bitmap toCircleBitmap(Bitmap bitmap) {

    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int r = width < height ? width : height;

    Bitmap buffer = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(buffer);
    Paint paint = new Paint();
    paint.setAntiAlias(true);//from  w  w w  .  jav  a2s.  c  om
    RectF rect = new RectF(0, 0, r, r);

    canvas.drawCircle(r / 2, r / 2, r / 2, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, null, rect, paint);
    bitmap.recycle();
    return buffer;
}

From source file:com.bullmobi.message.graphics.IconFactory.java

@NonNull
private static Bitmap createEmptyIcon(@NonNull Context context, int size) {
    Paint paint = new Paint();
    paint.setAntiAlias(true);//w ww  .  j av a  2s  . co m
    paint.setColor(0xDDCCCCCC); // white gray

    final float radius = size / 2f;

    Bitmap icon = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_4444);
    Canvas canvas = new Canvas(icon);
    canvas.drawCircle(radius, radius, radius, paint);

    Drawable drawable = ResUtils.getDrawable(context, R.drawable.ic_action_warning_white);
    assert drawable != null;
    drawable.setBounds(0, 0, size, size);
    drawable.draw(canvas);

    return icon;
}