安卓:垂直的RatingBar? [英] Android: vertical RatingBar?
本文介绍了安卓:垂直的RatingBar?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我如何可以旋转的RatingBar? 是否有一个垂直定制的RatingBar的例子吗?
How can I rotate the RatingBar? Is there an example for a vertical custom RatingBar?
推荐答案
这是样品code垂直的评价吧...
This is sample code for vertical rating bar...
public class VerticalRatingBar extends RatingBar {
private int x, y, z, w;
@Override
protected void drawableStateChanged() {
// TODO Auto-generated method stub
super.drawableStateChanged();
}
public VerticalRatingBar(Context context) {
super(context);
}
public VerticalRatingBar(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public VerticalRatingBar(Context context, AttributeSet attrs) {
super(context, attrs);
}
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(h, w, oldh, oldw);
this.x = w;
this.y = h;
this.z = oldw;
this.w = oldh;
}
@Override
protected synchronized void onMeasure(int widthMeasureSpec,
int heightMeasureSpec) {
super.onMeasure(heightMeasureSpec, widthMeasureSpec);
setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());
}
protected void onDraw(Canvas c) {
c.rotate(-90);
c.translate(-getHeight(), 0);
super.onDraw(c);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (!isEnabled()) {
return false;
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
setSelected(true);
setPressed(true);
break;
case MotionEvent.ACTION_MOVE:
setProgress(getMax()
- (int) (getMax() * event.getY() / getHeight()));
onSizeChanged(getWidth(), getHeight(), 0, 0);
break;
case MotionEvent.ACTION_UP:
setSelected(false);
setPressed(false);
break;
case MotionEvent.ACTION_CANCEL:
break;
}
return true;
}
@Override
public synchronized void setProgress(int progress) {
if (progress >= 0)
super.setProgress(progress);
else
super.setProgress(0);
onSizeChanged(x, y, z, w);
}
}
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