我需要绘制一个在另一个位图上调整大小的位图(缩小一个位图,然后在另一个位图上绘制)。
我现在使用的代码是:
Resources res = ((Context)(activity)).getResources();
Drawable[] layers = new Drawable[2];
layers[0] = res.getDrawable(R.drawable.marker_report_red);
layers[1] = new BitmapDrawable(getResizedBitmap(((BitmapDrawable)res.getDrawable(R.drawable.report_path_merge_ic)).getBitmap(),10,10));
LayerDrawable layerDrawable = new LayerDrawable(layers);
Bitmap b = Bitmap.createBitmap(layers[0].getIntrinsicWidth(), layers[0].getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
layerDrawable.setBounds(0, 0, layers[0].getIntrinsicWidth(), layers[0].getIntrinsicHeight());
layerDrawable.draw(new Canvas(b));
和:
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;
}
但是生成的图像只是显示了一个模糊的位图,该位图被拉伸到底层的大小。
我怎样才能做到这一点?这是我正在尝试的第四种方法...