Example usage for android.graphics Canvas Canvas

Introduction

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

Prototype

@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
public Canvas(long nativeCanvas)

Source Link

Usage

From source file:Main.java

public static Bitmap joinBitmaps(Bitmap first, Bitmap second) {
    Bitmap result = Bitmap.createBitmap(first.getWidth(), first.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(result);
    Paint bitmapPaint = new Paint();
    if (second.getWidth() != first.getWidth() && second.getHeight() != first.getHeight()) {
        second = createScaledToFillBitmap(second, first.getWidth(), first.getHeight());
    }//from  w ww  .  ja v  a 2s .c  om

    canvas.drawBitmap(first, 0, 0, bitmapPaint);
    canvas.drawBitmap(second, 0, 0, bitmapPaint);

    return result;
}

From source file:Main.java

public static Bitmap getViewBitmap(View v) {
    if (v.getWidth() == 0 || v.getHeight() == 0)
        return null;
    Bitmap b = Bitmap.createBitmap(v.getWidth(), v.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas c = new Canvas(b);
    v.draw(c);/*from   ww  w  . j a  va 2s.c  om*/
    return b;
}

From source file:Main.java

public static Bitmap getPaintedBitmap(Bitmap bitmap, Paint paint, boolean deleteOld) {
    final Bitmap colorBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), bitmap.getConfig());
    final Canvas c = new Canvas(colorBitmap);
    c.drawBitmap(bitmap, 0, 0, paint);/*www .j a va2s . c om*/
    if (deleteOld) {
        bitmap.recycle();
    }
    return colorBitmap;
}

From source file:Main.java

public static Bitmap cropBitmap(Bitmap bitmap, Rect rect) {
    int w = rect.right - rect.left;
    int h = rect.bottom - rect.top;
    Bitmap ret = Bitmap.createBitmap(w, h, bitmap.getConfig());
    Canvas canvas = new Canvas(ret);
    canvas.drawBitmap(bitmap, -rect.left, -rect.top, null);
    bitmap.recycle();/*from w w w .ja va2s. c  o m*/
    return ret;
}

From source file:Main.java

/**
 * Draws view to a bitmap image./* ww w.jav a 2 s. co  m*/
 */
public static Bitmap drawToBitmap(final View viewToDraw) {

    final Bitmap bitmap = Bitmap.createBitmap(viewToDraw.getWidth(), viewToDraw.getHeight(),
            Bitmap.Config.ARGB_8888);
    final Canvas canvas = new Canvas(bitmap);
    viewToDraw.draw(canvas);
    return bitmap;
}

From source file:Main.java

public static Bitmap createBitmapFrom(Drawable drawable) {
    Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(),
            Bitmap.Config.ARGB_8888);/*from www .j a v  a  2s  .co m*/
    Canvas canvas = new Canvas(bitmap);
    drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
    drawable.draw(canvas);
    return bitmap;
}

From source file:Main.java

public static Bitmap captureScreen(Activity context) {
    View cv = context.getWindow().getDecorView();
    Bitmap bmp = Bitmap.createBitmap(cv.getWidth(), cv.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(bmp);
    cv.draw(canvas);/*  w ww . j  av a  2s  .  co m*/
    return bmp;
}

From source file:Main.java

private static byte[] getBitmapBytes(Bitmap bitmap, boolean paramBoolean, int width, int heigth) {
    Bitmap localBitmap = Bitmap.createBitmap(width, heigth, Bitmap.Config.RGB_565);
    Canvas localCanvas = new Canvas(localBitmap);
    int i;//from  w w  w  .  j av a  2  s.c  om
    int j;
    if (bitmap.getHeight() > bitmap.getWidth()) {
        i = bitmap.getWidth();
        j = bitmap.getWidth();
    } else {
        i = bitmap.getHeight();
        j = bitmap.getHeight();
    }
    while (true) {
        localCanvas.drawBitmap(bitmap, new Rect(0, 0, i, j), new Rect(0, 0, width, heigth), null);
        if (paramBoolean)
            bitmap.recycle();
        ByteArrayOutputStream localByteArrayOutputStream = new ByteArrayOutputStream();
        localBitmap.compress(Bitmap.CompressFormat.JPEG, 100, localByteArrayOutputStream);
        localBitmap.recycle();
        byte[] arrayOfByte = localByteArrayOutputStream.toByteArray();
        try {
            localByteArrayOutputStream.close();
            return arrayOfByte;
        } catch (Exception e) {
            e.printStackTrace();
        }
        i = bitmap.getHeight();
        j = bitmap.getHeight();
    }
}

From source file:Main.java

public static Bitmap drawableToBitmap(Context context, Drawable drawable) {

    Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(),
            Bitmap.Config.ARGB_8888);//from   w  w  w .ja  v  a  2 s  .c  o m
    Canvas canvas = new Canvas(bitmap);
    drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
    drawable.draw(canvas);
    return bitmap;
}

From source file:Main.java

public static Bitmap flipAnimation(Bitmap animationTexture, int subImageWidth, int subImageHeight) {
    Bitmap animationTextureFlipped = Bitmap.createBitmap(animationTexture.getWidth(),
            animationTexture.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(animationTextureFlipped);
    Bitmap b;//from  ww  w .  j a v  a  2s.c  om
    for (int i = 0; (i + 1) * subImageHeight <= animationTexture.getHeight(); i++) {
        for (int j = 0; (j + 1) * subImageWidth <= animationTexture.getWidth(); j++) {
            b = Bitmap.createBitmap(animationTexture, j * subImageWidth, i * subImageHeight, subImageWidth,
                    subImageHeight);
            b = flip(b);
            canvas.drawBitmap(b, j * subImageWidth, i * subImageHeight, null);
        }
    }
    return animationTextureFlipped;
}