首先看效果图
仿地图弹窗
当然了这个高度和宽度是可控的。想详细修改的话去代码里面修改吧!
使用方法
BouncingMenu.makeMenu(findViewById(R.id.rl), R.layout.layout_rv_sweet, adapter).show();
是的，就是这一行代码。只需要传入view，布局id，以及adapter（这里使用的是recycleview.Adapter）。想修改其他的话直接去修改代码吧。
具体实现
-
首先是activity的布局,很简单，就是放了各种ImageView，然后上面放了个searchView（纯粹为了增加样式，囧，这个不重要）
弹出视图
-
RecycleView部分。从上往下的动画效果使用的是LayoutAnimation.
布局：
首先是activity的布局,很简单，就是放了各种ImageView，然后上面放了个searchView（纯粹为了增加样式，囧，这个不重要）
-
RecycleView部分。从上往下的动画效果使用的是LayoutAnimation.
布局：
2. BouncingMenu(弹出的主视图)
public class BouncingMenu {
private final ViewGroup mParentViewGroup;
private View rootView;
private final BouncingView boucingView;
private final RecyclerView recycleView;
private RecyclerView.Adapter adapter;
private int screenWidht;
private int screenHeight;
/**
* @param resId 布局资源id
* @param adapter
*/
public BouncingMenu(View view, int resId, RecyclerView.Adapter adapter) {
this.adapter = adapter;
//不断地往上追溯找到 系统id为content的帧布局，添加进去.这里就是利用了这个。
// @android:id/content 就是锚点view
mParentViewGroup = findRootParent(view);
//渲染
rootView = LayoutInflater.from(view.getContext()).inflate(resId, null, false);
//拿到高度,然后把rootview的高度设置为0
Logger.i("视图的跟布局是" + rootView);
boucingView = (BouncingView) rootView.findViewById(R.id.sv);
boucingView.setAnimationListener(new MyAnimationListener());
recycleView = (RecyclerView) rootView.findViewById(R.id.rv);
recycleView.setAnimation(AnimationUtils.loadAnimation(view.getContext(), R.anim.rv_layout_animation));
recycleView.setLayoutManager(new LinearLayoutManager(view.getContext()));
getScreentWight(view.getContext());
}
private ViewGroup findRootParent(View view) {
do {
//判断是帧布局
if (view instanceof FrameLayout) {
if (view.getId() == android.R.id.content) {
//判断布局id为content
return (ViewGroup) view;
}
}
//没找到 ，就不断的往上找
if (view != null) {
ViewParent parent = view.getParent();
//如果父布局是view的话往上继续找
view = parent instanceof View ? (View) parent : null;
}
} while (view != null);
return null;
}
public static BouncingMenu makeMenu(View view, int resId, RecyclerView.Adapter adapter) {
return new BouncingMenu(view, resId, adapter);
}
/**
* 显示
*
* @return
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
public BouncingMenu show() {
//显示,往帧布局里面addView（xxxView）
if (rootView.getParent() != null) {
//防止已经show了再次show
mParentViewGroup.removeView(rootView);
}
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT);
rootView.setLayoutParams(params);
mParentViewGroup.addView(rootView);
boucingView.show();
return this;
}
/**
* 关闭
*/
public void dissmiss() {
//属性动画实现消失
ObjectAnimator animator = ObjectAnimator.ofFloat(rootView, "translationY", 0, rootView.getHeight());
animator.setDuration(1000);
animator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
//动画结束
super.onAnimationEnd(animation);
mParentViewGroup.removeView(rootView);
rootView = null;
}
});
animator.start();
}
private class MyAnimationListener implements BouncingView.AnimationListener {
@Override
public void onShowContent() {
recycleView.setVisibility(View.VISIBLE);
recycleView.setAdapter(adapter);
recycleView.scheduleLayoutAnimation();
}
}
private void getScreentWight(Context context) {
WindowManager wm = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
screenWidht = wm.getDefaultDisplay().getWidth();
screenHeight = wm.getDefaultDisplay().getHeight();
}
}
2. BouncingView(就是主视图上面弹动的那一部分，这里做成了一个自定义view)
public class BouncingView extends View {
private Paint mPaint;
private int mArcHeight;//当前弧度
private int mMaxArcHeight;//最高弧度
private Status mStatus = Status.NONE;
private Path mPath = new Path();
private AnimationListener animationListener;
private enum Status {
NONE,
STATUS_SMOOTH_UP,
STATUS_DOWN
}
public BouncingView(Context context) {
super(context);
init();
}
public BouncingView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
private void init() {
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setStyle(Paint.Style.FILL);
mPaint.setColor(getResources().getColor(android.R.color.white));
mMaxArcHeight = getResources().getDimensionPixelSize(R.dimen.arc_max_height);
}
//绘制贝塞尔曲线
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
int currentPointY = 0;
//判断当前状态
switch (mStatus) {
case NONE:
currentPointY = 0;
break;
case STATUS_SMOOTH_UP://往上走
//currentPointY 的值 跟mArcHeight变化率是一样的
//getHeight()~0 (自定义控件最上面是0) 跟mArcHeight:0~mMaxArcHeight
currentPointY = (int) (getHeight() * (1 - (float) mArcHeight / mMaxArcHeight) + mMaxArcHeight);
break;
case STATUS_DOWN://往下走
currentPointY = mMaxArcHeight;
break;
}
mPath.reset();
//先落笔到左上角
mPath.moveTo(0, currentPointY);
//画上面的线二阶贝塞尔曲线 ,需要起始点 终点，跟拐点。起点就是（0，currentPotintY），拐点就是最中间(getWidth()/2,)
mPath.quadTo(getWidth() / 2, currentPointY - mArcHeight, getWidth(), currentPointY);
//右边线
mPath.lineTo(getWidth(), getHeight());
//最下面的直线
mPath.lineTo(0, getHeight());
//自动画最后一条线
mPath.close();
canvas.drawPath(mPath, mPaint);
}
public void show() {
if (animationListener != null) {
this.postDelayed(new Runnable() {
@Override
public void run() {
//延迟显示数据
animationListener.onShowContent();
}
}, 600);
}
//不短的控制mArcHeight的高度
mStatus = Status.STATUS_SMOOTH_UP;
ValueAnimator valueAnimator = ValueAnimator.ofInt(0, mMaxArcHeight);
valueAnimator.setDuration(800);
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
mArcHeight = (int) animation.getAnimatedValue();
if (mArcHeight == mMaxArcHeight) {
//出现谈一下动画
bounce();
}
//不断的刷新调用ondraw方法
invalidate();
}
});
valueAnimator.start();
}
/**
* 回弹动画
*/
private void bounce() {
mStatus = Status.STATUS_DOWN;
ValueAnimator valueAnimator = ValueAnimator.ofInt(mMaxArcHeight, 0);
valueAnimator.setDuration(800);
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
mArcHeight = (int) animation.getAnimatedValue();
//不断的刷新调用ondraw方法
invalidate();
}
});
valueAnimator.start();
}
public void setAnimationListener(AnimationListener listener) {
this.animatiOnListener= listener;
}
public interface AnimationListener {
void onShowContent();
}
}
github:https://github.com/Xiemarc/DesignPatterns
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