I am trying to disable user dragging on BottomSheet
. The reason I want to disable is two things. 1. It's preventing the ListView
from scrolling downward, 2. I don't want users to dismiss using dragging but with a button on the BottomSheetView
. This is what I've done
bottomSheetBehavior = BottomSheetBehavior.from(bottomAnc);
bottomSheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
@Override
public void onStateChanged(@NonNull View bottomSheet, int newState) {
if (newState == BottomSheetBehavior.STATE_EXPANDED) {
//Log.e("BottomSheet", "Expanded");
} else if (newState == BottomSheetBehavior.STATE_COLLAPSED) {
//Log.e("BottomSheet", "Collapsed");
}
}
@Override
public void onSlide(@NonNull View bottomSheet, float slideOffset) {
// React to dragging events
bottomSheet.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
int action = MotionEventCompat.getActionMasked(event);
switch (action) {
case MotionEvent.ACTION_DOWN:
return false;
default:
return true;
}
}
});
}
});
The bottomSheetLayout
<?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"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white"
app:behavior_hideable="true"
app:behavior_peekHeight="0dp"
app:layout_behavior="@string/bottom_sheet_behavior"
android:id="@+id/bottomSheet">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:elevation="10dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center_vertical">
<TextView
android:id="@+id/text1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Order Items"
android:layout_margin="16dp"
android:textAppearance="@android:style/TextAppearance.Large"/>
<Button
android:layout_width="50dp"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:background="@drawable/bg_accept"/>
<Button
android:layout_width="50dp"
android:layout_height="wrap_content"
android:layout_marginRight="8dp"
android:background="@drawable/bg_cancel"/>
</LinearLayout>
<ListView
android:id="@+id/item_edit"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white"
android:divider="@color/md_divider_black"
android:dividerHeight="1dp"/>
</LinearLayout>
</android.support.v7.widget.CardView>
It can be now no longer relevant, but I will leave it here:
import android.content.Context
import android.util.AttributeSet
import androidx.coordinatorlayout.widget.CoordinatorLayout
import android.view.MotionEvent
import android.view.View
import com.google.android.material.bottomsheet.BottomSheetBehavior
@Suppress("unused")
class LockableBottomSheetBehavior<V : View> : BottomSheetBehavior<V> {
constructor() : super()
constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
var swipeEnabled = true
override fun onInterceptTouchEvent(
parent: CoordinatorLayout,
child: V,
event: MotionEvent
): Boolean {
return if (swipeEnabled) {
super.onInterceptTouchEvent(parent, child, event)
} else {
false
}
}
override fun onTouchEvent(parent: CoordinatorLayout, child: V, event: MotionEvent): Boolean {
return if (swipeEnabled) {
super.onTouchEvent(parent, child, event)
} else {
false
}
}
override fun onStartNestedScroll(
coordinatorLayout: CoordinatorLayout,
child: V,
directTargetChild: View,
target: View,
axes: Int,
type: Int
): Boolean {
return if (swipeEnabled) {
super.onStartNestedScroll(
coordinatorLayout,
child,
directTargetChild,
target,
axes,
type
)
} else {
false
}
}
override fun onNestedPreScroll(
coordinatorLayout: CoordinatorLayout,
child: V,
target: View,
dx: Int,
dy: Int,
consumed: IntArray,
type: Int
) {
if (swipeEnabled) {
super.onNestedPreScroll(coordinatorLayout, child, target, dx, dy, consumed, type)
}
}
override fun onStopNestedScroll(
coordinatorLayout: CoordinatorLayout,
child: V,
target: View,
type: Int
) {
if (swipeEnabled) {
super.onStopNestedScroll(coordinatorLayout, child, target, type)
}
}
override fun onNestedPreFling(
coordinatorLayout: CoordinatorLayout,
child: V,
target: View,
velocityX: Float,
velocityY: Float
): Boolean {
return if (swipeEnabled) {
super.onNestedPreFling(coordinatorLayout, child, target, velocityX, velocityY)
} else {
false
}
}
}
And use it in your xml file:
app:layout_behavior="com.your.package.LockableBottomSheetBehavior"
It disables all users actions, it can be used when you want control BottomSheet only programmatically.