我有一个旋转图像的方法,但我总是收到OutMemoryError错误,但我的图库中的图像是从相机拍摄的,大小宽度为5000〜来自手机
我将照片调整为宽度1280和高度960
我用的第一种显示和调整图像的方法是
public static Boolean ShowImagesCapture(Context context, Uri PATH_IMAGE, ImageCropView view,int width, int height){
int orientation=0;
Boolean success = true;
try {
Bitmap bitmap =null;
if (Build.VERSION.SDK_INT < 19) {
String selectedImagePath = getPath(PATH_IMAGE,context);
bitmap = BitmapFactory.decodeFile(selectedImagePath);
orientation=GetPhotoOrientation(context,getRealPathFromURI(context,PATH_IMAGE));
}
else {
ParcelFileDescriptor parcelFileDescriptor;
try {
parcelFileDescriptor = context.getContentResolver().openFileDescriptor(PATH_IMAGE, "r");
FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
bitmap = BitmapFactory.decodeFileDescriptor(fileDescriptor);
parcelFileDescriptor.close();
orientation=GetPhotoOrientation(context,getRealPathFromURI(context,PATH_IMAGE));
} catch (Exception e) {
e.printStackTrace();
}
}
switch (orientation) {
case ExifInterface.ORIENTATION_ROTATE_180:
bitmap=rotateBitmap(bitmap,3,width,height);
view.setImageBitmap(bitmap);
break;
break;
case ExifInterface.ORIENTATION_ROTATE_90:
bitmap=rotateBitmap(bitmap,8,width,height);
view.setImageBitmap(bitmap);
break;
case ExifInterface.ORIENTATION_TRANSVERSE:
break;
case ExifInterface.ORIENTATION_ROTATE_270:
bitmap=rotateBitmap(bitmap,6,width,height);
view.setImageBitmap(bitmap);
break;
default:
view.setImageBitmap(bitmap);
}
bitmap = null;
}
catch (Exception e) {
e.printStackTrace();
success= false;
}
System.gc();
return success;
}
我的方法是旋转图片
public static Bitmap rotateBitmap(Bitmap bitmap, int orientation,int width,int height) {
try {
Matrix matrix = new Matrix();
switch (orientation) {
case ExifInterface.ORIENTATION_NORMAL:
return bitmap;
case ExifInterface.ORIENTATION_FLIP_HORIZONTAL:
// matrix.setScale(-1, 1);
break;
case ExifInterface.ORIENTATION_ROTATE_180:
matrix.setRotate(180);
break;
case ExifInterface.ORIENTATION_FLIP_VERTICAL:
matrix.setRotate(180);
// matrix.postScale(-1, 1);
break;
case ExifInterface.ORIENTATION_TRANSPOSE:
matrix.setRotate(90);
// matrix.postScale(-1, 1);
break;
case ExifInterface.ORIENTATION_ROTATE_90:
matrix.setRotate(90);
break;
case ExifInterface.ORIENTATION_TRANSVERSE:
matrix.setRotate(-90);
// matrix.postScale(-1, 1);
break;
case ExifInterface.ORIENTATION_ROTATE_270:
matrix.setRotate(-270);
break;
default:
return bitmap;
}
Bitmap bmRotated = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, false);
bitmap.recycle();
return bmRotated;
}
catch (OutOfMemoryError e) {
Log.e(TAG,"Out memory Error");
return null;
}catch (Exception e){
e.printStackTrace();
return null;
}
}
我的错误在哪里?
*-------------------**更新于2016年6月27日**-------------------*
我代码的最佳版本已经正常工作。
public static Bitmap rotateBitmap(Bitmap bitmap, int orientation,int width,int height) {
try {
Matrix matrix = new Matrix();
switch (orientation) {
case ExifInterface.ORIENTATION_NORMAL:
return bitmap;
case ExifInterface.ORIENTATION_FLIP_HORIZONTAL:
matrix.setScale(-1, 1);
break;
case ExifInterface.ORIENTATION_ROTATE_180:
matrix.setRotate(180);
break;
case ExifInterface.ORIENTATION_FLIP_VERTICAL:
matrix.setRotate(180);
matrix.postScale(-1, 1);
break;
case ExifInterface.ORIENTATION_TRANSPOSE:
matrix.setRotate(90);
matrix.postScale(-1, 1);
break;
case ExifInterface.ORIENTATION_ROTATE_90:
matrix.setRotate(90);
break;
case ExifInterface.ORIENTATION_TRANSVERSE:
matrix.setRotate(-90);
matrix.postScale(-1, 1);
break;
case ExifInterface.ORIENTATION_ROTATE_270:
matrix.setRotate(-270);
break;
default:
return bitmap;
}
Bitmap bmRotated= null;
try {
Bitmap tmp_bitmap= Bitmap.createScaledBitmap(bitmap,width,height,true);
bmRotated = Bitmap.createBitmap(tmp_bitmap, 0, 0, tmp_bitmap.getWidth(),tmp_bitmap.getHeight(), matrix, true);
bitmap.recycle();
}catch (OutOfMemoryError e){
e.printStackTrace();
}
return bmRotated;
} catch (Exception e){
e.printStackTrace();
return null;
}
}
public static Bitmap decodefilebitmap(String selectedImagePath, int reqWidth, int reqHeight) {
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(selectedImagePath, options);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
return BitmapFactory.decodeFile(selectedImagePath, options);
}
public static int calculateInSampleSize(
BitmapFactory.Options options, int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
final int halfHeight = height / 2;
final int halfWidth = width / 2;
// Calculate the largest inSampleSize value that is a power of 2 and keeps both
// height and width larger than the requested height and width.
while ((halfHeight / inSampleSize) > reqHeight
&& (halfWidth / inSampleSize) > reqWidth) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
//METODO PARA MOSTRAR LA IMAGEN DESDE LA GALERIA
public static Boolean ShowImagesCapture(Context context, Uri PATH_IMAGE, ImageCropView view,int width, int height){
int orientation=0;
Boolean success = true;
try {
Bitmap bitmap =null;
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
if (Build.VERSION.SDK_INT < 19) {
String selectedImagePath = getPath(PATH_IMAGE,context);
bitmap = decodefilebitmap(selectedImagePath,bitmap.getWidth(),bitmap.getHeight());
orientation=GetPhotoOrientation(context,getRealPathFromURI(context,PATH_IMAGE));
}
else {
ParcelFileDescriptor parcelFileDescriptor;
try {
parcelFileDescriptor = context.getContentResolver().openFileDescriptor(PATH_IMAGE, "r");
FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
bitmap = BitmapFactory.decodeFileDescriptor(fileDescriptor);
parcelFileDescriptor.close();
orientation=GetPhotoOrientation(context,getRealPathFromURI(context,PATH_IMAGE));
} catch (Exception e) {
e.printStackTrace();
}
}
switch (orientation) {
case ExifInterface.ORIENTATION_ROTATE_180:
bitmap=rotateBitmap(bitmap,3,width,height);
view.setImageBitmap(bitmap);
break;
case ExifInterface.ORIENTATION_ROTATE_90:
bitmap=rotateBitmap(bitmap,8,width,height);
view.setImageBitmap(bitmap);
break;
case ExifInterface.ORIENTATION_TRANSVERSE:
break;
case ExifInterface.ORIENTATION_ROTATE_270:
bitmap=rotateBitmap(bitmap,6,width,height);
view.setImageBitmap(bitmap);
break;
default:
view.setImageBitmap(bitmap);
}
bitmap = null;
}
catch (Exception e) {
e.printStackTrace();
success= false;
}
System.gc();
return success;
}