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Accepted
Антон Лялин
Asked:2020-08-02 19:24:46 +0000 UTC2020-08-02 19:24:46 +0000 UTC

如何让 BottomSheetBehabior 出现在按钮点击上？

  • 772

我这样做，但它没有出现。

@OnClick(R.id.btnMap)
public void click(){
    initBottomSheet();
    Log.d("TAG", "!!!");
}
private void initBottomSheet() {
    bottomSheetBehavior = BottomSheetBehavior.from(layout_bottom);
    bottomSheetBehavior.setState(BottomSheetBehavior.STATE_HIDDEN);
    bottomSheetBehavior.setPeekHeight(340);
    bottomSheetBehavior.setHideable(false);
    initBottomSheetStateListener(bottomSheetBehavior);
}


private void initBottomSheetStateListener(@NonNull BottomSheetBehavior bottomSheetBehavior) {
    bottomSheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
        @Override
        public void onStateChanged(@NonNull View bottomSheet, int newState) {
        }

        @Override
        public void onSlide(@NonNull View bottomSheet, float slideOffset) {
        }
    });
}

和标记

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="220dp"
android:background="@drawable/shape_bottom_sheet"
android:orientation="vertical"
app:behavior_hideable="true"
app:behavior_peekHeight="0dp"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
android

1 个回答

  1. Best Answer

    奇怪，直到我问这个问题我才解决问题，但结果很简单

    @Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    ButterKnife.bind(this, view);
    bottomSheetBehavior = BottomSheetBehavior.from(layout_bottom);
}

private void initBottomSheet() {
    bottomSheetBehavior.setHideable(false);
    bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
    initBottomSheetStateListener(bottomSheetBehavior);
}

private void initBottomSheetStateListener(@NonNull BottomSheetBehavior bottomSheetBehavior) {
    bottomSheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
        @Override
        public void onStateChanged(@NonNull View bottomSheet, int newState) {

        }

        @Override
        public void onSlide(@NonNull View bottomSheet, float slideOffset) {
        }
    });
}
    • 1

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