Android学习札记17：ImageView中的setImageBitmap()方法

Sets a Bitmap as the content of this ImageView.

Parameters:
bm The bitmap to set

@android.view.RemotableViewMethod
public void setImageBitmap(Bitmap bm) {
// if this is used frequently, may handle bitmaps explicitly
// to reduce the intermediate drawable object
setImageDrawable(new BitmapDrawable(mContext.getResources(), bm));
}

Sets a drawable as the content of this ImageView.

Parameters:
drawable The drawable to set

public void setImageDrawable(Drawable drawable) {
if (mDrawable != drawable) {
mResource = 0;
mUri = null;

int oldWidth = mDrawableWidth;
int oldHeight = mDrawableHeight;

updateDrawable(drawable);

if (oldWidth != mDrawableWidth || oldHeight != mDrawableHeigh{
requestLayout();
}
invalidate();
}
}