Android Utililty Methods Bitmap Crop

List of utility methods to do Bitmap Crop

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Description

The list of methods to do Bitmap Crop are organized into topic(s).

Method

BitmapcreateCenterCropBitmap(Bitmap srcBitmap, int dstWidth, int dstHeight, boolean tryRecycleSource)
create Center Crop Bitmap 
if (srcBitmap == null || dstWidth == 0 || dstHeight == 0) {
    return srcBitmap;
int srcWidth = srcBitmap.getWidth();
int srcHeight = srcBitmap.getHeight();
Bitmap dstBitmap = srcBitmap;
try {
    if ((dstHeight / dstWidth) - (srcHeight / srcWidth) > 0) {
...
Bitmapcrop(Bitmap bitmap, float newWidth, float newHeight)
Crop. 
int width = bitmap.getWidth();
int height = bitmap.getHeight();
float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;
Matrix matrix = new Matrix();
matrix.postScale(scaleWidth, scaleHeight);
Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, width,
        height, matrix, true);
...
Bitmapcrop(Bitmap bitmap, int x, int y, float newWidth, float newHeight)
Crop from 4 sides. 
Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, x, y,
        (int) newWidth, (int) newHeight, null, true);
return resizedBitmap;
BitmapcropBitmapToSquare(Bitmap bitmap, int squareLength)
crop Bitmap To Square 
if (bitmap != null) {
    int imageSquareLength = Math.min(bitmap.getWidth(),
            bitmap.getHeight());
    int croppedLength = Math.min(imageSquareLength, squareLength);
    float scale = (float) croppedLength / imageSquareLength;
    Matrix matrix = new Matrix();
    matrix.setScale(scale, scale);
    try {
...
BitmapcropBitmapToSquare(String bitmapPath, int squareLength)
crop Bitmap To Square 
Bitmap bitmap = decodeSampledBitmapFromFile(bitmapPath,
        squareLength, squareLength);
return cropBitmapToSquare(bitmap, squareLength);
intgetTrimmedBottom(Bitmap img)
returns blank area of the image to the downward direction of the image 
int width = img.getWidth();
int height = img.getHeight();
int data = 0;
for (int i = 0; i < width; ++i) {
    for (int j = height - 1; j >= 0; --j) {
        if (img.getPixel(i, j) != Color.TRANSPARENT && j > data) {
            data = j;
            break;
...
intgetTrimmedBottom(Bitmap img, int border)
returns blank area of the image to the downward direction of the image 
int width = img.getWidth();
int height = img.getHeight();
int data = 0;
for (int i = 0; i < width; ++i) {
    for (int j = height - 1; j >= 0; --j) {
        if (img.getPixel(i, j) != Color.TRANSPARENT && j > data) {
            data = j;
            break;
...
intgetTrimmedLeft(Bitmap img)
returns blank area of the image to the left direction of the image 
int width = img.getWidth();
int height = img.getHeight();
int data = width;
for (int i = 0; i < height; ++i) {
    for (int j = 0; j < width; ++j) {
        if (img.getPixel(j, i) != Color.TRANSPARENT && j < data) {
            data = j;
            break;
...
intgetTrimmedLeft(Bitmap img, int border)
returns blank area of the image to the left direction of the image 
int width = img.getWidth();
int height = img.getHeight();
int data = width;
for (int i = 0; i < height; ++i) {
    for (int j = 0; j < width; ++j) {
        if (img.getPixel(j, i) != Color.TRANSPARENT && j < data) {
            data = j;
            break;
...
intgetTrimmedRight(Bitmap img)
returns blank area of the image to the right direction of the image 
int width = img.getWidth();
int height = img.getHeight();
int data = 0;
for (int i = 0; i < height; ++i) {
    for (int j = width - 1; j >= 0; --j) {
        if (img.getPixel(j, i) != Color.TRANSPARENT && j > data) {
            data = j;
            break;
...