我希望我的底部对话框默认在中间高度打开,而在滑动时,它应该打开到顶部。 Google地图将在上半部分显示,而另一半将在Bottomsheet
中显示,并且当用户向上滑动底部时,它应该向顶部打开。
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
tools:context=".home.MainActivity">
<LinearLayout android:layout_width="match_parent"
android:orientation="vertical"
android:weightSum="2"
android:layout_height="match_parent">
<fragment
android:layout_width="match_parent"
android:layout_height="0dp"
android:id="@+id/map"
android:layout_weight="1"
tools:context=".module.ride.activity.MapsActivity"
android:name="com.google.android.gms.maps.SupportMapFragment"/>
<LinearLayout android:layout_width="match_parent"
android:orientation="vertical"
android:layout_weight="1"
android:layout_height="0dp">
</LinearLayout>
</LinearLayout>
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fff"
android:orientation="vertical"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_gravity="center_vertical"
android:weightSum="3">
<ImageView android:layout_width="match_parent"
app:srcCompat="@drawable/ic_openclose"
android:id="@+id/imgExpand"
android:layout_height="@dimen/_40sdp"/>
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Chicken Fried Rice 1x1"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Paneer Tikka 1x2"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Delivery Address"
android:textColor="#444"
android:textStyle="bold"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Flat No 404, Skyline Apartments, Vizag - 500576"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="30dp"
android:background="#000"
android:foreground="?attr/selectableItemBackground"
android:text="PROCEED PAYMENT"
android:textColor="#fff"/>
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
</FrameLayout>
我的Kotlin代码
var sheetBehavior: BottomSheetBehavior<*>? = null
sheetBehavior = BottomSheetBehavior.from(bottom_sheet);
(sheetBehavior as BottomSheetBehavior<*>?)!!.setBottomSheetCallback(object :
BottomSheetBehavior.BottomSheetCallback() {
override fun onSlide(p0: View, p1: Float) {
}
override fun onStateChanged(p0: View, p1: Int) {
when (p0.id) {
BottomSheetBehavior.STATE_HIDDEN -> {
System.out.println("----------STATE_HIDDEN")
}
BottomSheetBehavior.STATE_EXPANDED -> {
System.out.println("-------------STATE_EXPANDED")
}
BottomSheetBehavior.STATE_COLLAPSED -> {
System.out.println("-----------STATE_COLLAPSED")
}
}
}
})
imgExpand.setOnClickListener() {
if ((sheetBehavior as BottomSheetBehavior<*>?)!!.state != BottomSheetBehavior.STATE_EXPANDED) {
(sheetBehavior as BottomSheetBehavior<*>?)!!.setState(BottomSheetBehavior.STATE_EXPANDED);
} else {
(sheetBehavior as BottomSheetBehavior<*>?)!!.setState(BottomSheetBehavior.STATE_COLLAPSED);
}
}
}
我尝试了一些东西,但显示出类似这样的内容
但是我想做这样的事情
答案 0 :(得分:1)
将属性app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
从LinearLayout
移到工作表的根视图CoordinatorLayout
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<LinearLayout
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fff"
android:orientation="vertical">
答案 1 :(得分:1)
为底表设置peekHeight
应该可以帮助您获得所需的行为。这是peekHeight的定义。
STATE_COLLAPSED :底部可见,但仅显示其窥视高度。此状态通常是底表的“静止位置”。窥视高度由开发人员选择,应足以指示有更多内容,允许用户触发操作或扩展底页。