BitmapUtils.java

package tk.djcrazy.MyCC98.util;

import android.graphics.Bitmap;
import android.graphics.Matrix;

public class BitmapUtils {
	public static Bitmap rotate(Bitmap b, int degrees) {
		if (degrees != 0 && b != null) {
			Matrix m = new Matrix();
			m.setRotate(degrees, (float) b.getWidth() / 2, (float) b.getHeight() / 2);
			try {
				Bitmap b2 = Bitmap.createBitmap(b, 0, 0, b.getWidth(), b.getHeight(), m, true);
				if (b != b2) {
					b.recycle(); // Android开发网再次提示Bitmap操作完应该显示的释放
					b = b2;
				}
			} catch (OutOfMemoryError ex) {
				return b;
 			}
		}
		return b;
	}
}