android: 不需要焦点的 TextView跑马灯 MarqueeTextView

public class MarqueeTextView extends TextView {

public MarqueeTextView(Context appCon) {
super(appCon);
}

public MarqueeTextView(Context context, AttributeSet attrs) {
super(context, attrs);
}

public MarqueeTextView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}

@Override
public boolean isFocused() {
return true;
}

@Override
protected void onFocusChanged(boolean focused, int direction,
Rect previouslyFocusedRect) {
}
}