第一步：添加依赖：
compile "com.android.support:design:${project.properties.get("support")}"
第二步：布局引用：
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#04827c">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
//页面布局
</RelativeLayout>
<include //引入菜单布局
android:id="@+id/au_bottom_sheet"
layout="@layout/view_audio_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:focusable="true"
app:behavior_hideable="true"
app:behavior_peekHeight="0dp"
app:layout_behavior="@string/bottom_sheet_behavior" />
</android.support.design.widget.CoordinatorLayout>
第三步：使用：
//找到BottomSheetBehavior BottomSheetBehavior behavior = BottomSheetBehavior.from(findViewById(R.id.au_bottom_sheet)); //设置弹出高度 behavior.setPeekHeight(WindowHeight / 2); //默认隐藏 behavior.setState(BottomSheetBehavior.STATE_HIDDEN); //添加消失监听 behavior.setBottomSheetCallback(bottomSheetCallback);
添加菜单消失监听：
//状态监听，通过这个监听菜单是否消失
private BottomSheetBehavior.BottomSheetCallback bottomSheetCallback = new BottomSheetBehavior.BottomSheetCallback() {
@Override
public void onStateChanged(@NonNull View bottomSheet, int newState) {
if (newState == BottomSheetBehavior.STATE_HIDDEN) {
if (!isBehaviorShowing(behavior)) {
//菜单已经消失
}
}
}
@Override
public void onSlide(@NonNull View bottomSheet, float slideOffset) {
//滑动监听
}
};
判断是否可见：
private Boolean isBehaviorShowing(BottomSheetBehavior behavior) {
return behavior.getState() == BottomSheetBehavior.STATE_COLLAPSED
|| behavior.getState() == BottomSheetBehavior.STATE_EXPANDED
|| behavior.getState() == BottomSheetBehavior.STATE_SETTLING;
}
收回菜单：
behavior.setState(BottomSheetBehavior.STATE_HIDDEN);
弹出菜单：
behavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
