private void initBottomSheet() {
mBottomSheetBehavior = BottomSheetBehavior.from(findViewById(R.id.design_bottom_sheet));
// 默认设置为隐藏
mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_HIDDEN);
mBottomSheetBehavior.setBottomSheetCallback(
new BottomSheetBehavior.BottomSheetCallback() {
@Override
public void onStateChanged(@NonNull View bottomSheet, int newState) {
Log.i(
TAG,
"onStateChanged bottomSheet "
+ bottomSheet.getClass().getSimpleName()
+ " newState "
+ newState);
}
@Override
public void onSlide(@NonNull View bottomSheet, float slideOffset) {
Log.i(
TAG,
"onSlide bottomSheet "
+ bottomSheet.getClass().getSimpleName()
+ " newState "
+ slideOffset);
}
});
// 设置为 true 之后，点击或拖动时会被直接关闭
// mBottomSheetBehavior.setSkipCollapsed(true);
}
private void initBottomView() {
CoordinatorLayout coordinatorLayout = (CoordinatorLayout) findViewById(R.id.cl_activity_scroll);
assert coordinatorLayout != null;
View view = coordinatorLayout.findViewById(R.id.ns_content_scroll);
behavior = BottomSheetBehavior.from(view);
behavior.setBottomSheetCallback(
new BottomSheetBehavior.BottomSheetCallback() {
boolean first = true;
@Override
public void onStateChanged(@NonNull View bottomSheet, int newState) {
state = newState;
}
@Override
public void onSlide(@NonNull View bottomSheet, float slideOffset) {
if (first) {
first = false;
bottomSheet.setTranslationY(0);
}
}
});
}