Android仿Boss直聘我的界面滑动效果
龙旋
共 6131字,需浏览 13分钟
·
2022-01-13 00:55
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorAccent"
app:layout_behavior="com.zwl.mybossdemo.AppBarLayoutOverScrollViewBehavior">
android:id="@+id/mCollapsingToolbarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorAccent"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
android:id="@+id/topview"
layout="@layout/layout_top_view"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.9" />
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"
android:layout_marginTop="30dp"
android:elevation="5dp"
android:gravity="center"
android:text="大白"
android:textColor="@android:color/white"
android:textSize="28sp"
android:textStyle="bold"
android:typeface="monospace" />
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:alpha="0"
android:background="@color/colorAccent"
app:layout_collapseMode="pin" />
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorAccent"
android:orientation="vertical"
android:paddingTop="40dp"
app:layout_collapseMode="parallax">
android:id="@+id/top_view_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/top_view">
android:id="@+id/jianli"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/name"
android:layout_marginLeft="30dp"
android:paddingTop="35dp"
android:paddingBottom="15dp"
android:text="我的在线简历 "
android:textColor="@android:color/white" />
android:id="@+id/me_icon"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_alignParentRight="true"
android:layout_marginRight="30dp"
android:layout_marginBottom="10dp"
android:src="@drawable/boss_avatar_7" />
android:id="@+id/top_view"
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_alignParentBottom="true"
android:gravity="center_vertical"
android:orientation="horizontal"
android:padding="15dp">
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="301\n沟通过"
android:textColor="@android:color/white"
android:textSize="16sp" />
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="301\n沟通过"
android:textColor="@android:color/white"
android:textSize="16sp" />
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="301\n沟通过"
android:textColor="@android:color/white"
android:textSize="16sp" />
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="301\n沟通过"
android:textColor="@android:color/white"
android:textSize="16sp" />
android:id="@+id/cardview"
android:layout_width="match_parent"
android:layout_height="120dp"
android:layout_gravity="center_horizontal"
android:gravity="center_horizontal|bottom">
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/boss_card_bg" />
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/white"
android:clickable="true"
android:scrollbars="none"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="@drawable/boss_user_bottom" />
public class AppBarLayoutOverScrollViewBehavior extends AppBarLayout.Behavior {
private int mAppBarHeight;
private View mCardView;
private boolean isAnimate;
private float mTotalDy;
private float mLastScale;
private int mLastBottom;
private int mCardViewHeight;
private int mLimitHeight;
private View mToolBar;
private float scaleValue = 2f / 3;// 显示卡片的三分之一 所以抛出三分之二
private View mNameTitle;
public AppBarLayoutOverScrollViewBehavior() {
}
public AppBarLayoutOverScrollViewBehavior(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean onLayoutChild(CoordinatorLayout parent, AppBarLayout abl, int layoutDirection) {
boolean handled = super.onLayoutChild(parent, abl, layoutDirection);
if (null == mCardView) {
mCardView = parent.findViewById(R.id.cardview);
}
if (null == mToolBar) {
mToolBar = parent.findViewById(R.id.toolbar);
}
if (null == mNameTitle) {
mNameTitle = parent.findViewById(R.id.name);
}
init(abl);
return handled;
}
@Override
public boolean onNestedPreFling(CoordinatorLayout coordinatorLayout, AppBarLayout child, View target, float velocityX, float velocityY) {
if (velocityY > 100) {
isAnimate = false;
}
return super.onNestedPreFling(coordinatorLayout, child, target, velocityX, velocityY);
}
@Override
public void onStopNestedScroll(CoordinatorLayout coordinatorLayout, AppBarLayout abl, View target, int type) {
super.onStopNestedScroll(coordinatorLayout, abl, target, type);
//恢复位置
if (abl.getBottom() > mLimitHeight) {
recovery(abl);
}
}
@Override
public boolean onStartNestedScroll(CoordinatorLayout parent, AppBarLayout child, View directTargetChild, View target, int nestedScrollAxes, int type) {
//开始滚动了 就动画归位
isAnimate = true;
return super.onStartNestedScroll(parent, child, directTargetChild, target, nestedScrollAxes, type);
}
@Override
public void onNestedPreScroll(CoordinatorLayout coordinatorLayout, AppBarLayout child, View target, int dx, int dy, int[] consumed, int type) {
if (mCardView != null && ((dy <= 0 && child.getBottom() >= mLimitHeight) || (dy > 0 && child.getBottom() > mLimitHeight))) {
scrollY(child, target, dy);
} else {
setViewAlpha(child, dy);
super.onNestedPreScroll(coordinatorLayout, child, target, dx, dy, consumed, type);
}
}
/**
* 初始化数据
*
* @param appBarLayout
*/
private void init(final AppBarLayout appBarLayout) {
appBarLayout.setClipChildren(false);
//整个AppbarLayout高度
mAppBarHeight = appBarLayout.getMeasuredHeight();
//卡片的高度
mCardViewHeight = mCardView.getMeasuredHeight();
//折叠正常的高度
mLimitHeight = mAppBarHeight - (int) (mCardViewHeight * scaleValue);
//默认1s折叠
appBarLayout.postDelayed(new Runnable() {
@Override
public void run() {
ValueAnimator anim = ValueAnimator.ofFloat(0, 1f).setDuration(200);
anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
float value = (float) animation.getAnimatedValue();
appBarLayout.setBottom((int) (mAppBarHeight - value * mCardViewHeight * scaleValue));
}
});
anim.start();
}
}, 1000);
}
/**
* 混动
*
* @param child
* @param target
* @param dy
*/
private void scrollY(AppBarLayout child, View target, int dy) {
mTotalDy += -dy;
mTotalDy = Math.min(mTotalDy, mLimitHeight);
mLastScale = Math.max(1f, 1f + (mTotalDy / mLimitHeight));
mLastBottom = mLimitHeight + (int) (mCardViewHeight * scaleValue * (mLastScale - 1));
child.setBottom(mLastBottom);
target.setScrollY(0);
}
/**
* 根据滑动设置 toolbar 名字显示效果
*
* @param target
* @param dy
*/
private void setViewAlpha(View target, int dy) {
float percent = Math.abs(target.getY() / mLimitHeight);
if (percent >= 1) {
percent = 1f;
}
//设置toolbar的透明度
mToolBar.setAlpha(percent);
//设置名字缩放
mNameTitle.setScaleX(Math.max(0.8f, 1 - percent));
mNameTitle.setScaleY(Math.max(0.8f, 1 - percent));
//设置名字平移
int offset = mNameTitle.getTop() - mToolBar.getTop();
mNameTitle.setTranslationY(-offset * percent);
}
/**
* 恢复位置
*
* @param abl
*/
private void recovery(final AppBarLayout abl) {
if (mTotalDy >= 0) {
mTotalDy = 0;
if (isAnimate) {
ValueAnimator valueAnimator = ValueAnimator.ofFloat(0, 1f).setDuration(200);
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
float value = (float) animation.getAnimatedValue();
int offsetY = abl.getBottom() - mLimitHeight;
abl.setBottom((int) (abl.getBottom() - (value * offsetY)));
abl.setScrollY(0);
}
});
valueAnimator.start();
} else {
abl.setBottom(mLimitHeight);
abl.setScrollY(0);
}
}
}
}
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