IllegalArgumentException in createBitmap

Question

我有个问题。在某些设备上，我有时(并不总是)在创建位图时得到一个IllegalArgumentException错误。可能是什么原因？

代码：

public class MStick {

    public MStick(Context context, ViewGroup layout, int stick_res_id) {
        mContext = context;
        stick = BitmapFactory.decodeResource(context.getApplicationContext().getResources(), stick_res_id);
    }

    public void setStick(int stick_res_id) {
        stick = BitmapFactory.decodeResource(mContext.getResources(), stick_res_id);
        setStickSize(stick_width, stick_height);
    }

    public void setStickSize(int width, int height) {
        stick = Bitmap.createScaledBitmap(stick, width, height, true);
        stick_width = stick.getWidth();
        stick_height = stick.getHeight();
    }

}

mStick = new MStick(context, layout_mstick, R.drawable.mstick);
mStick.setStickSize(100, 100);

异常：

java.lang.IllegalArgumentException: 
  at android.graphics.Bitmap.createBitmap (Bitmap.java:1113)
  at android.graphics.Bitmap.createBitmap (Bitmap.java:952)
  at android.graphics.Bitmap.createScaledBitmap (Bitmap.java:807)
  at view.MStick.setStickSize (MStick.java:257)

Answer 1

Exception表示stick.getWidth()或stick.getHeight()是0。

drawable/mstick可能不是一个有效的资源。