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画像を読み込まずに高さ／幅を取得する

Android

Last updated at 2012-12-26Posted at 2012-03-16

読み込まないので負荷をかけににくい。

getBitmapSize.java

BitmapFactory.Options opts = new BitmapFactory.Options();
opts.inJustDecodeBounds = true;//これが読み込まないオプション
Bitmap preBitmap = null;
InputStream preIStream = new FileInputStream(path);
preBitmap = BitmapFactory.decodeStream(preIStream, null, opts);
preIStream.close();

int bmW = opts.outWidth ;//画像のwidth
int bmH = opts.outHeight ;//画像のheight

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