Android 旋转图片错误:java.lang.OutOfMemoryError
语句Bitmap.createBitmap(tmpBitmap,0,0,x,y,matrix,true);有错误 我看了网络图片,图片大小很大,大约100k~300k 如何解决这个问题?还有其他方法可以旋转图片吗?试试这个 但是你需要pic的路径来使用它。 如果您不喜欢分辨率,请增加所需的_大小值Android 旋转图片错误:java.lang.OutOfMemoryError,android,rotation,Android,Rotation,语句Bitmap.createBitmap(tmpBitmap,0,0,x,y,matrix,true);有错误 我看了网络图片,图片大小很大,大约100k~300k 如何解决这个问题?还有其他方法可以旋转图片吗?试试这个 但是你需要pic的路径来使用它。 如果您不喜欢分辨率,请增加所需的_大小值 public Bitmap RotationPic(Bitmap tmpBitmap){ int x = tmpBitmap.getWidth(); int y = t
public Bitmap RotationPic(Bitmap tmpBitmap){
int x = tmpBitmap.getWidth();
int y = tmpBitmap.getHeight();
if(x > y){
Matrix matrix = new Matrix();
matrix.reset();
matrix.setRotate(90);
return Bitmap.createBitmap(tmpBitmap,0,0, x, y,matrix, true);
}
return tmpBitmap;
}
替换Bitmap.createBitmap(tmpBitmap,0,0,x,y,matrix,true);创建位图(tmpBitmap,0,0,y,x,矩阵,true);将图像旋转90度时,宽度=高度,高度=宽度
public static Bitmap DecodeFileToBitmap (String path)
{
try
{
File f = new File(path);
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream(f),null,o);
final int REQUIRED_SIZE=500;
int scale=1;
while(o.outWidth/scale/2>=REQUIRED_SIZE && o.outHeight/scale/2>=REQUIRED_SIZE)
scale*=2;
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize=scale;
Bitmap bm = BitmapFactory.decodeStream(new FileInputStream(f), null, o2);
Bitmap bitmap = bm;
ExifInterface exif = null;
try
{
exif = new ExifInterface(path);
int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 1);
Matrix m = new Matrix();
if ((orientation == 3))
{
m.postRotate(180);
m.postScale((float) bm.getWidth(), (float) bm.getHeight());
bitmap = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(),bm.getHeight(), m, true);
return bitmap;
}
else if (orientation == 6)
{
m.postRotate(90);
bitmap = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(),bm.getHeight(), m, true);
return bitmap;
}
else if (orientation == 8)
{
m.postRotate(270);
bitmap = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(),bm.getHeight(), m, true);
return bitmap;
}
return bitmap;
}
catch(Exception ex) {}
}
catch (FileNotFoundException e) {}
return null;
}