【发布时间】:2018-12-26 10:20:28
【问题描述】:
我有一个 BottomSheet,其中包含一张产品详细信息卡。问题是,当我在底部工作表处于 展开 状态时单击产品详细信息上的 + 或 - 按钮时,它跳下来。
当它向下并且我点击它不会跳转的按钮时,它只会在它处于展开(完全向上)状态时发生
我附上了一个 GIF 来展示正在发生的事情
这里是代码
scan_sheet.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:animateLayoutChanges="false"
android:background="@drawable/bottom_sheet_dialog_fragment"
android:orientation="vertical"
app:behavior_hideable="true"
app:behavior_peekHeight="100dp"
app:layout_behavior="studio.monotype.storedemo.BottomSheetBehavior">
<include
layout="@layout/hero_item"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="32dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<View
android:id="@+id/divider_view"
android:layout_width="match_parent"
android:layout_height="4dp"
android:layout_marginStart="24dp"
android:layout_marginTop="44dp"
android:layout_marginEnd="24dp"
android:background="@color/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/hero_item" />
<include
layout="@layout/related_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_marginBottom="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="@+id/divider_view"
tools:layout_editor_absoluteX="0dp" />
</androidx.constraintlayout.widget.ConstraintLayout>
ScanActivity.kt (简化为仅显示必要的内容)
class ScanActivity : AppCompatActivity() {
private lateinit var bottomSheet: BottomSheetBehavior<*>
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_scan)
setupBottomSheet()
showSheet()
}
private fun setupBottomSheet() {
bottomSheet = BottomSheetBehavior.from(bottom_sheet)
bottomSheet.isHideable = true
bottomSheet.skipCollapsed= true
bottomSheet.isDraggable = true
bottomSheet.state = BottomSheetBehavior.STATE_HIDDEN
bottomSheet.addBottomSheetCallback(object : BottomSheetBehavior.BottomSheetCallback {
override fun onSlide(bottomSheet: View, slideOffset: Float) {
}
@SuppressLint("SwitchIntDef")
override fun onStateChanged(sheet: View, newState: Int) {
when (newState) {
BottomSheetBehavior.STATE_HIDDEN -> {
codeScanner.startPreview()
}
}
}
})
plus_btn.setOnClickListener {
var qty= qty_tv.text.toString().toInt()
qty++
qty_tv.text =qty.toString()
}
minus_btn.setOnClickListener {
var qty= qty_tv.text.toString().toInt()
if(qty!=0)
{
qty--
}
qty_tv.text =qty.toString()
}
}
private fun showSheet() {
bottomSheet.state = BottomSheetBehavior.STATE_EXPANDED
}
}
【问题讨论】:
-
@PrateekPhoenix,你找到解决办法了吗? -
不,不是,我们取消了该设计,因为它是组件的问题,此后没有任何更新。
标签: android kotlin bottom-sheet material-components material-components-android