Android开发一个RelativeLayout像一个纸张一样从右边卷到左边这样消失掉的效果有示例代码吗注意是卷起来卷到最左边然后消失并不是平移这么简单别给我整平移动画了啊!你可以写自定义View!别给我整平移动画你怎么那么喜欢平移!问你好几次都是给平移!没看过纸卷起来吗!
要实现一个RelativeLayout像一张纸一样从右边卷到左边消失的效果,可以通过自定义View来实现。下面是一个示例代码:
public class PaperRollView extends RelativeLayout {
private Paint paint;
private float rollOffset;
public PaperRollView(Context context) {
super(context);
init();
}
public PaperRollView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public PaperRollView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
private void init() {
paint = new Paint();
paint.setColor(Color.WHITE);
paint.setStyle(Paint.Style.FILL);
rollOffset = 0;
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
int width = getWidth();
int height = getHeight();
// 绘制纸张
canvas.drawRect(rollOffset, 0, width, height, paint);
// 绘制卷起的部分
Path path = new Path();
path.moveTo(rollOffset, 0);
path.lineTo(0, 0);
path.lineTo(0, height);
path.lineTo(rollOffset, height);
canvas.drawPath(path, paint);
}
public void rollToDisappear() {
final int duration = 2000; // 动画时长,可根据需要调整
final int framesPerSecond = 60; // 每秒帧数,可根据需要调整
final int totalFrames = duration / 1000 * framesPerSecond; // 总帧数
ValueAnimator animator = ValueAnimator.ofFloat(0, getWidth());
animator.setInterpolator(new LinearInterpolator());
animator.setDuration(duration);
animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
rollOffset = (float) animation.getAnimatedValue();
invalidate();
}
});
animator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
setVisibility(View.GONE);
}
});
animator.start();
}
}
然后在你的布局文件中使用这个自定义View:
<com.example.PaperRollView
android:id="@+id/paper_roll_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
在代码中调用rollToDisappear()方法即可实现纸张从右边卷到左边消失的效果
原文地址: http://www.cveoy.top/t/topic/iYE1 著作权归作者所有。请勿转载和采集!