Can't hide bottom sheet, Android
I have problems with my bottom-sheetbecause when I open the activity it is on, blocking the view 
This is happening, I think, because of the XML attribute declaring bottom-sheet with 350dp height:
<android.support.v4.widget.NestedScrollView
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="350dp"
android:background="?android:attr/windowBackground"
android:clipToPadding="true"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
The thing is, I cannot change this value to 0dp, because next time I try to open bottom-sheet, not bottom-sheetbecause the height is 0dp so it doesn't show anything. My question is, is there a way to declarebottom-sheetoff? (I tried to set STATE_COLLAPSED to STATE_COLLAPSED, but it didn't work). Below is the Java code that interacts with the bottom sheet. JAVA:
View bottomSheet = findViewById( R.id.bottom_sheet );
mBottomSheetBehavior = BottomSheetBehavior.from(bottomSheet);
mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
mBottomSheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
@Override
public void onStateChanged(View bottomSheet, int newState) {
if (newState == BottomSheetBehavior.STATE_COLLAPSED) {
//mBottomSheetBehavior.setPeekHeight(0);
//mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
//mBottomSheetBehavior.isHideable();
}
}
@Override
public void onSlide(View bottomSheet, float slideOffset) {
}
});
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first you need to add the attribute
app:behavior_hideable="true"
in
<android.support.v4.widget.NestedScrollView
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="350dp"
android:background="?android:attr/windowBackground"
android:clipToPadding="true"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
And then you can hide the bottom sheet using
mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_HIDDEN)
but not
mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED)
the COLLAPSED state is between HIDDEN and EXPANDED, and its attribute must be specified by the attribute:
app:behavior_peekHeight="200dp"
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In my case, I used BottomSheetDialog
.
app:behavior_hideable
- the attribute is used to determine if our bottom sheet will hide when it is scrolled down . In other words, the top of the topsheet will be off if the gap height is not set.
app:behavior_peekHeight
is the attribute value used to represent how many pixels will be displayed by the bottom sheet.
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/bottom_sheet_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="10dp"
android:orientation="vertical"
android:background="@color/colorPrimaryDerived"
app:layout_behavior="@string/bottom_sheet_behavior"
app:behavior_hideable="true"
app:behavior_peekHeight="0dp"> ........... </LinearLayout>
I have set peekHeight to 50dp. And the peep height has nothing to do with the height of the bottom sheet layout itself, which I set to 200dp (for example only).
You can preview the changes in your XML viewer if the bottom sheet is expanded if so added app:behavior_peekHeight = 0dp
from the xml layout and it will hide and also tell you the current state.
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You can manually hide this bottom sheet by setting the visibility of the parent line layout to skip that line in your code when you want
if (confirmLayoutBehaviour.getState() != BottomSheetBehavior.STATE_EXPANDED) {//todo hide your bottom sheet if its already open confirmLayout.setVisibility(View.GONE); } else {//set it to visible if its not open confirmLayout.setVisibility(View.VISIBLE); }
this worked for me please try
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