그냥 사용자 정의 ViewGroup
을 (또는 하나를 기존의 확장)하고 아이를 그립니다 전에 캔버스를 확장 :
public class MirrorRelativeLayout extends RelativeLayout {
public MirrorRelativeLayout(Context context) {
super(context);
}
public MirrorRelativeLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MirrorRelativeLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void dispatchDraw(Canvas canvas) {
canvas.save();
// Scale the canvas in reverse in the x-direction, pivoting on
// the center of the view
canvas.scale(-1f, 1f, getWidth()/2f, getHeight()/2f);
super.dispatchDraw(canvas);
canvas.restore();
}
@Override
public void draw(Canvas canvas) {
canvas.save();
// Scale the canvas in reverse in the x-direction, pivoting on
// the center of the view
canvas.scale(-1f, 1f, getWidth()/2f, getHeight()/2f);
super.dispatchDraw(canvas);
canvas.restore();
}
}
그런 다음 사용하십시오. ViewGroup
레이아웃의 근원 :
<com.your.packagename.MirrorRelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:text="Mirror Text!"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</com.your.packagename.MirrorRelativeLayout>