Example usage for android.graphics Bitmap createBitmap

Introduction

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

Prototype

public static Bitmap createBitmap(@NonNull DisplayMetrics display, @NonNull @ColorInt int[] colors, int offset,
        int stride, int width, int height, @NonNull Config config)

Source Link

Document

Returns a immutable bitmap with the specified width and height, with each pixel value set to the corresponding value in the colors array.

Usage

From source file:Main.java

/**
 * Get a mirror Bitmap//w ww .  j ava2s  . c  o m
 *
 * @param sourceBitmap Bitmap to Change
 * @return Mirror bitmap
 */
public static Bitmap getMirrorBitmap(Bitmap sourceBitmap) {
    Matrix m = new Matrix();
    m.preScale(-1, 1);
    Bitmap dst = Bitmap.createBitmap(sourceBitmap, 0, 0, sourceBitmap.getWidth(), sourceBitmap.getHeight(), m,
            false);
    dst.setDensity(DisplayMetrics.DENSITY_DEFAULT);
    return dst;
}

From source file:Main.java

public static Bitmap resizeBitmap(Bitmap bitmap, int w, int h) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    float scaleWidth = ((float) w) / width;
    float scaleHeight = ((float) h) / height;
    Matrix matrix = new Matrix();
    matrix.postScale(scaleWidth, scaleHeight);
    return Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
}

From source file:Main.java

public static Bitmap getSolideSizeBitmap(Bitmap bm, int width, int height) {
    float widthScale = (width * 1f) / (bm.getWidth() * 1f);
    float heightScale = (height * 1f) / (bm.getHeight() * 1f);
    Matrix matrix = new Matrix();
    matrix.setScale(widthScale, heightScale);
    return Bitmap.createBitmap(bm, 0, 0, bm.getWidth(), bm.getHeight(), matrix, false);
}

From source file:Main.java

public static Bitmap getResizedBitmap(Bitmap bitmap, int i, int j) {
    int k = bitmap.getWidth();
    int l = bitmap.getHeight();
    float f = (float) i / (float) k;
    float f1 = (float) j / (float) l;
    Matrix matrix = new Matrix();
    matrix.postScale(f, f1);/* ww  w. j av a2s . c  o  m*/
    return Bitmap.createBitmap(bitmap, 0, 0, k, l, matrix, false);
}

From source file:Main.java

public static Bitmap rotate(Bitmap originalBitmap, float alpha) {
    if (originalBitmap == null)
        return null;
    int width = originalBitmap.getWidth();
    int height = originalBitmap.getHeight();
    Matrix matrix = new Matrix();
    matrix.setRotate(alpha);/*ww w  . ja  v  a  2 s.c  o m*/
    return Bitmap.createBitmap(originalBitmap, 0, 0, width, height, matrix, true);
}

From source file:Main.java

public static Bitmap bitmapZoomByScale(Bitmap srcBitmap, float scaleWidth, float scaleHeight) {
    int srcWidth = srcBitmap.getWidth();
    int srcHeight = srcBitmap.getHeight();
    Matrix matrix = new Matrix();

    matrix.postScale(scaleWidth, scaleHeight);
    Bitmap resizedBitmap = Bitmap.createBitmap(srcBitmap, 0, 0, srcWidth, srcHeight, matrix, true);
    if (resizedBitmap != null) {
        srcBitmap = null;//from w w  w. j  a v  a  2s.c o  m
        return resizedBitmap;
    } else {
        return srcBitmap;
    }
}

From source file:Main.java

public final static Bitmap rotationBitmap(Bitmap srcBitmap, float degrees) {
    Bitmap result = null;/*from   www. ja v  a  2s . c  o m*/
    if (degrees != 0 && srcBitmap != null) {
        Matrix m = new Matrix();
        m.setRotate(degrees, (float) srcBitmap.getWidth() / 2, (float) srcBitmap.getHeight() / 2);
        try {
            Bitmap b2 = Bitmap.createBitmap(srcBitmap, 0, 0, srcBitmap.getWidth(), srcBitmap.getHeight(), m,
                    true);
            if (srcBitmap != b2) {
                srcBitmap.recycle();
                srcBitmap = b2;
            }
            result = b2;
        } catch (OutOfMemoryError ex) {
            ex.printStackTrace();
        }
    }
    return result;
}

From source file:Main.java

public static Bitmap fixRotateMirrorImage(Bitmap src) {
    Matrix rotateRight = new Matrix();
    float[] mirrorY = { -1, 0, 0, 0, 1, 0, 0, 0, 1 };
    Matrix matrixMirrorY = new Matrix();
    matrixMirrorY.setValues(mirrorY);// w w  w  .j  av  a2  s.co  m
    rotateRight.postConcat(matrixMirrorY);
    rotateRight.preRotate(270);
    final Bitmap rotMirrorImg = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), rotateRight,
            true);
    src.recycle();

    return rotMirrorImg;
}

From source file:Main.java

public static Bitmap getRotatedBitmap(byte[] bildDaten) {
    Bitmap result = BitmapFactory.decodeByteArray(bildDaten, 0, bildDaten.length);
    if (result.getWidth() > result.getHeight()) {
        Matrix m = new Matrix();
        m.postRotate(90);/*from w w  w  . ja va2 s . co  m*/
        result = Bitmap.createBitmap(result, 0, 0, result.getWidth(), result.getHeight(), m, true);
    }
    return result;
}

From source file:Main.java

public static Bitmap zoomBitmap(Bitmap bitmap, int w, int h) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    Matrix matrix = new Matrix();
    float x = (float) w / width;
    float y = (float) h / height;
    matrix.postScale(x, y);//  www .j a  va  2  s.c o  m
    Bitmap zoomBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
    return zoomBitmap;
}