Anm*_*mol 7 android fragment bottom-sheet
我正在BottomSheetDialogFragment满足我的要求是创建底部菜单,如果我在片段区域外单击,则不应取消对话框并应保留。
问题: 片段外的事件应传播到较低的片段视图/片段。
我已经在下面尝试过(不适用于BottomDialogFragment): Allow external touch for DialogFragment
要停止对话框中取消我尝试下面(我称之为setCancelable(boolean)在onStart()BottomDialogFragment的):
@Override
public void setCancelable(boolean cancelable) {
super.setCancelable(cancelable);
BottomSheetDialog dialog = (BottomSheetDialog) getDialog();
dialog.setCanceledOnTouchOutside(cancelable);
View bottomSheetView = dialog.getWindow().getDecorView().findViewById(R.id.design_bottom_sheet);
BottomSheetBehavior.from(bottomSheetView).setHideable(cancelable);
}
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编辑:发现它很难,没有其他方法然后使用坐标布局。BottomSheetDialog 的最佳解决方案是here
在您的以下代码中尝试BottomSheetDialog:
override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
return (super.onCreateDialog(savedInstanceState) as BottomSheetDialog).apply {
setCanceledOnTouchOutside(false)
}
}
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或通过<CoordinatorLayout> 例如您的<ConstraintLayout>和实现<layout />并附加到BottomSheetBehavior.
正如 Pankaj Kumar 所说,默认情况下这是不可能的。但是,我找到了一种可行的解决方法,允许触摸底部工作表外部的视图,同时保持底部工作表打开
您可以覆盖类似的布局BottomSheetDialog:
值/refs.xml
<resources xmlns:tools="http://schemas.android.com/tools">
<item name="design_bottom_sheet_dialog" type="layout" tools:override="true">@layout/custom_design_bottom_sheet_dialog</item>
</resources>
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布局/custom_design_bottom_sheet_dialog.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
~ This is an override of the design_bottom_sheet_dialog from material library
-->
<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:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:id="@+id/coordinator"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<View
android:id="@+id/touch_outside"
android:layout_width="0dp"
android:layout_height="0dp"
android:visibility="gone"
android:importantForAccessibility="no"
android:soundEffectsEnabled="false"
tools:ignore="UnusedAttribute"/>
<FrameLayout
android:id="@+id/design_bottom_sheet"
style="?attr/bottomSheetStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|top"
app:layout_behavior="@string/bottom_sheet_behavior"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
</FrameLayout>
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YourCustomBottomSheetDialogFragment
override fun onStart() {
super.onStart()
// Set layout for custom bottom sheet by allowing background touches
dialog?.window?.apply {
setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL, WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL)
attributes = attributes.apply {
gravity = Gravity.BOTTOM
}
setDimAmount(0.0f)
}
}
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通过这样做,对话框具有wrap_content高度,并且标志允许由该对话框外部的视图处理触摸
你应该使用android.support.design.widget.BottomSheetBehavior.
bottomSheet但如果你想在其他课程中使用,我建议你使用 aFragment并在此fragment打开你的bottomSheet
以这种方式打开你的片段。
在您的片段中,bottomSheet使用以下代码打开您的片段:
在onInitViews
var mBottomSheetBehavior = BottomSheetBehavior.from(bottomSheetCoordinatorLayout)
mBottomSheetBehavior!!.state = BottomSheetBehavior.STATE_HIDDEN
mBottomSheetBehavior!!.setBottomSheetCallback(object : BottomSheetBehavior.BottomSheetCallback() {
override fun onStateChanged(bottomSheet: View, newState: Int) {
when (newState) {
BottomSheetBehavior.STATE_HIDDEN -> {
fragmentManager?.popBackStack()
}
//BottomSheetBehavior.STATE_COLLAPSED -> "Collapsed"
//BottomSheetBehavior.STATE_DRAGGING -> "Dragging..."
//BottomSheetBehavior.STATE_EXPANDED -> "Expanded"
//BottomSheetBehavior.STATE_SETTLING -> "Settling..."
}
}
override fun onSlide(bottomSheet: View, slideOffset: Float) {
//text_view_state!!.text = "Sliding..."
}
})
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你的layout应该是这样的:
<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:layoutDirection="ltr">
<android.support.design.widget.CoordinatorLayout
android:id="@+id/bottomSheetCoordinatorLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:behavior_hideable="true"
app:behavior_peekHeight="55dp"
app:layout_behavior="@string/bottom_sheet_behavior">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/top_radius_primary_color"
android:paddingStart="@dimen/material_size_32"
android:paddingEnd="@dimen/material_size_32">
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
</android.support.design.widget.CoordinatorLayout>
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我希望它能帮助你
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