我想将图片调整为较小的图像,如缩略图。我使用了以下选项
EditMode = EditOnEnter
和
Bitmap imageBitmap = Bitmap.createScaledBitmap(mBitmap, 200, 700, false);
这两个选项都会削减部分图像。所以他们看起来不太好。我只想减少图像尺寸,不想丢失图像内容。
答案 0 :(得分:1)
你必须尝试这样
public Bitmap getResizedBitmap(Bitmap bm, int newHeight, int newWidth)
{
int width = bm.getWidth();
int height = bm.getHeight();
float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;
// create a matrix for the manipulation
Matrix matrix = new Matrix();
// resize the bit map
matrix.postScale(scaleWidth, scaleHeight);
// recreate the new Bitmap
Bitmap resizedBitmap = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, false);
return resizedBitmap;
}
答案 1 :(得分:1)
BitmapFactory.Options bmOptions = new BitmapFactory.Options();
Bitmap bitmap = BitmapFactory.decodeFile(filepath,bmOptions);
//Part 1 :withcompression Sacle image 200 pixels x 700 pixels this size you can customize as per your requirement
Bitmap withCompressed = Bitmap.createScaledBitmap(bitmap,200,700,true);
答案 2 :(得分:0)
如果你想在不损失质量的情况下调整图像大小,而图像来自drawable / mipmap,那么你应该尝试pngquant。