私のアプリでは、カメラから写真を撮り、プレビューします。私のアプリは風景モードで写真を撮るので、exifInterfaceを使用して縦向きモードに変更しましたが、画像が引き伸ばされます。ビットマップから引き伸ばされた画像を使用して画像を再描画するにはどうすればよいですか。ランドスケープモードで写真を撮ると、きれいに見えます。
これはカメラ部分の私のコードです:
public class TakePic extends Fragment {
@SuppressWarnings("deprecation")
@SuppressLint("NewApi")
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (container == null) {
return null;
}
View v = inflater.inflate(R.layout.add_spot_2, container, false);
....
upload.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
String path = Environment.getExternalStorageDirectory()
+ "/pic";
File photopath = new File(path);
if (!photopath.exists()) {
photopath.mkdir();
}
imagePath = new File(photopath, "pic"
+ System.currentTimeMillis() + ".png");
DataPassing.imagePath = imagePath;
if(imageUri==null){
Log.e("Image uri is null", "Image uri is null 1");
}
else{
Log.e("Image uri is NOT null", "Image uri is NOT null 1");
}
Log.e("file path ", imagePath.getAbsolutePath());
imageUri = Uri.fromFile(imagePath);
DataPassing.imageUri = imageUri;
if(imageUri==null){
Log.e("Image uri is null ", "Image uri is null 2");
}
else{
Log.e("Image uri is NOT null", "Image uri is NOT null 2");
}
Log.e("uri file path ", imageUri.getPath());
intent.putExtra(MediaStore.EXTRA_OUTPUT,
Uri.fromFile(imagePath));
startActivityForResult(intent, 100);
}
});
........
return v;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
@SuppressWarnings({ "deprecation" })
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 100 && resultCode == Activity.RESULT_OK) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 10;
if (DataPassing.imageUri == null) {
Toast.makeText(getActivity(), "Please retry",
Toast.LENGTH_SHORT).show();
} else {
Bitmap bm = readBitmap(DataPassing.imageUri);
int or = 0;
try {
or = resolveBitmapOrientation(DataPassing.imagePath);
Log.e("int", String.valueOf(or));
} catch (IOException e) {
e.printStackTrace();
}
if(or==1){
image.setBackgroundDrawable(new BitmapDrawable(bm));
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] array = stream.toByteArray();
AddNewSpotValues.comm_2_picture_path = array;
DataPassing.addspot2_bm = bm;
}
else{
int w = bm.getWidth();
int h = bm.getHeight();
Log.e("w & h", ""+w + " & " + h);
Matrix mtx = new Matrix();
mtx.postRotate(90);
Bitmap rbm = Bitmap.createBitmap(bm, 0, 0, w, h, mtx, true);
// Bitmap rbm = Bitmap.createBitmap(bm, 0, 0, 200,150, mtx, true);
image.setBackgroundDrawable(new BitmapDrawable(rbm));
ByteArrayOutputStream stream = new ByteArrayOutputStream();
rbm.compress(Bitmap.CompressFormat.PNG, 100, stream);
DataPassing.addspot2_bm = rbm;
byte[] array = stream.toByteArray();
AddNewSpotValues.comm_2_picture_path = array;
}
}
}
}
@Override
public void onLowMemory() {
// TODO Auto-generated method stub
super.onLowMemory();
}
private Bitmap readBitmap(Uri selectedImage) {
try {
File f = new File(selectedImage.getPath());
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream(f), null, o);
// The new size we want to scale to
final int REQUIRED_SIZE = 100;
// Find the correct scale value. It should be the power of 2.
int scale = 1;
while (o.outWidth / scale / 2 >= REQUIRED_SIZE
&& o.outHeight / scale / 2 >= REQUIRED_SIZE)
scale *= 2;
// Decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
return BitmapFactory.decodeStream(new FileInputStream(f), null, o2);
} catch (FileNotFoundException e) {
}
return null;
}
private int resolveBitmapOrientation(File bitmapFile) throws IOException {
ExifInterface exif = null;
exif = new ExifInterface(bitmapFile.getAbsolutePath());
return exif.getAttributeInt(ExifInterface.TAG_ORIENTATION,
ExifInterface.ORIENTATION_NORMAL);
}
}