复制代码 代码如下:

/**Bitmap放大的方法*/

private static Bitmap big(Bitmap bitmap) {

Matrix matrix = new Matrix();

matrix.postScale(1.5f,1.5f); //长和宽放大缩小的比例

Bitmap resizeBmp = Bitmap.createBitmap(bitmap,0,0,bitmap.getWidth(),bitmap.getHeight(),matrix,true);

return resizeBmp;

}

/**Bitmap缩小的方法*/

private static Bitmap small(Bitmap bitmap) {

Matrix matrix = new Matrix();

matrix.postScale(0.8f,0.8f); //长和宽放大缩小的比例

Bitmap resizeBmp = Bitmap.createBitmap(bitmap,0,0,bitmap.getWidth(),bitmap.getHeight(),matrix,true);

return resizeBmp;

}