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react-native-camera
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Code Issues Projects Releases Wiki Activity

Add width/height options

This commit is contained in:
Michaël Villeneuve 2018-02-23 10:12:47 +01:00
parent 8e22168c3b
commit e064bab7db
1 changed files with 17 additions and 0 deletions
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17
android/src/main/java/org/reactnative/camera/tasks/ResolveTakenPictureAsyncTask.java
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@ -61,6 +61,9 @@ public class ResolveTakenPictureAsyncTask extends AsyncTask<Void, Void, Writable
try {
if (inputStream != null) {
if (mOptions.hasKey("width") && mOptions.hasKey("height")) {
mBitmap = resizeBitmap(mBitmap, mOptions.getInteger("width"), mOptions.getInteger("height"));
}
ExifInterface exifInterface = new ExifInterface(inputStream);
// Get orientation of the image from mImageData via inputStream
int orientation = exifInterface.getAttributeInt(
@ -137,6 +140,20 @@ public class ResolveTakenPictureAsyncTask extends AsyncTask<Void, Void, Writable
return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), matrix, true);
}
public Bitmap resizeBitmap(Bitmap bm, int newWidth, int newHeight) {
int width = bm.getWidth();
int height = bm.getHeight();
float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;
Matrix matrix = new Matrix();
matrix.postScale(scaleWidth, scaleHeight);
Bitmap resizedBitmap = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, false);
bm.recycle();
return resizedBitmap;
}
private Bitmap flipHorizontally(Bitmap source) {
Matrix matrix = new Matrix();
matrix.preScale(-1.0f, 1.0f);