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

/**
 * Rotate the image./*from   www.  jav a 2s . c o  m*/
 *
 * @param drawable
 */
public static BitmapDrawable rotateImage(BitmapDrawable drawable, int degree) {
    Bitmap bitmap = drawable.getBitmap();

    Matrix matrix = new Matrix();
    matrix.postRotate(degree);
    Bitmap rotatedBMP = Bitmap.createBitmap(drawable.getBitmap(), 0, 0, bitmap.getWidth(), bitmap.getHeight(),
            matrix, true);
    return new BitmapDrawable(rotatedBMP);
}

From source file:Main.java

public static Bitmap createReflectionImageWithOrigin(Bitmap bitmap) {
    int i = bitmap.getWidth();
    int j = bitmap.getHeight();
    Matrix matrix = new Matrix();
    matrix.preScale(1.0F, -1F);/*from w  w w  .j ava  2 s  .  c om*/
    Bitmap bitmap1 = Bitmap.createBitmap(bitmap, 0, j / 2, i, j / 2, matrix, false);
    Bitmap bitmap2 = Bitmap.createBitmap(i, j + j / 2, android.graphics.Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap2);
    canvas.drawBitmap(bitmap, 0.0F, 0.0F, null);
    Paint paint = new Paint();
    canvas.drawRect(0.0F, j, i, j + 4, paint);
    canvas.drawBitmap(bitmap1, 0.0F, j + 4, null);
    Paint paint1 = new Paint();
    paint1.setShader(new LinearGradient(0.0F, bitmap.getHeight(), 0.0F, 4 + bitmap2.getHeight(), 0x70ffffff,
            0xffffff, android.graphics.Shader.TileMode.CLAMP));
    paint1.setXfermode(new PorterDuffXfermode(android.graphics.PorterDuff.Mode.DST_IN));
    canvas.drawRect(0.0F, j, i, 4 + bitmap2.getHeight(), paint1);
    return bitmap2;
}

From source file:Main.java

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

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 scaleWidth = (float) w / (float) width;
    float scaleHeight = (float) h / (float) height;
    matrix.postScale(scaleWidth, scaleHeight);
    Bitmap newBmp = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
    return newBmp;
}

From source file:Main.java

/**
 * reversal bitmap at left-right//w  w  w  .j ava 2 s  .c  om
 * 
 * @param originalImage
 * @return the bitmap after reversal
 */
public static Bitmap createReversal(Bitmap originalImage) {
    int width = originalImage.getWidth();
    int height = originalImage.getHeight();

    Matrix matrix = new Matrix();
    matrix.preScale(-1.0f, 1.0f);

    return Bitmap.createBitmap(originalImage, 0, 0, width, height, matrix, false);
}

From source file:Main.java

public static Bitmap rotateImage(Bitmap bitmap, float degrees) {
    Bitmap resultBitmap = bitmap;// w ww.  ja  v  a  2s . com
    try {
        Matrix matrix = new Matrix();
        matrix.postRotate(degrees);
        // Rotate the bitmap
        resultBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
    } catch (Exception exception) {
        exception.printStackTrace();
    }
    if (resultBitmap != bitmap) {
        bitmap.recycle();
    }
    return resultBitmap;
}

From source file:Main.java

public static Bitmap getRotatedImg(String path) {
    int angle = getBitmapRotation(path);
    Matrix matrix = new Matrix();
    matrix.postRotate(angle);/*  w w w .j a v a 2 s  . c o m*/
    Bitmap bitmap = BitmapFactory.decodeFile(path);
    try {
        bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return bitmap;
}

From source file:Main.java

public static Bitmap zoomBitmap(Bitmap bitmap, int w, int h) {
    Bitmap newbmp = null;// w w w .  j av  a2  s.co  m
    if (bitmap != null) {
        int width = bitmap.getWidth();
        int height = bitmap.getHeight();
        Matrix matrix = new Matrix();
        float scaleWidht = ((float) w / width);
        float scaleHeight = ((float) h / height);
        matrix.postScale(scaleWidht, scaleHeight);
        newbmp = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
    }
    return newbmp;
}

From source file:Main.java

public static Bitmap scaleBitmap(Bitmap srcBitmap, int newSize) {
    int w = srcBitmap.getWidth();
    int h = srcBitmap.getHeight();

    // Determine the scaling required to get desired result.
    float scaleW = newSize / (float) w;
    float scaleH = newSize / (float) h;

    Matrix matrix = new Matrix();
    matrix.postScale(scaleW, scaleH);/*from   w  w w  .  j a va  2s .  c  om*/

    return Bitmap.createBitmap(srcBitmap, 0, 0, w, h, matrix, false);
}

From source file:Main.java

public static Bitmap setScale(Bitmap source, int width, int height) {
    if (source == null || width < 1 || height < 1) {
        return null;
    }/*from   w w  w  .  j av  a2s  .  c om*/
    int w = source.getWidth();
    int h = source.getHeight();
    Matrix matrix = new Matrix();
    float scaleWidth = ((float) width / w);
    float scaleHeight = ((float) height / h);
    matrix.postScale(scaleWidth, scaleHeight);
    Bitmap bitmap = Bitmap.createBitmap(source, 0, 0, w, h, matrix, true);
    return bitmap;
}