如何禁用 BottomSheetDialogFragment 拖动

Question

如何禁用 BottomSheetDialogFragment 手指拖动？

我看到了类似的问题，但都是关于 BottomSheet 而不是 BottomSheetDialogFragment。

Answer 1

已创建 MyActivity 如下：

public class MyActivity extends AppCompatActivity {

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my);

        new MyBottomSheetFragment().show(getSupportFragmentManager(), "tag");
    }

    public static class MyBottomSheetFragment extends BottomSheetDialogFragment {

        @Override
        public void setupDialog(Dialog dialog, int style) {
            BottomSheetDialog bottomSheetDialog = (BottomSheetDialog) dialog;
            bottomSheetDialog.setContentView(R.layout.sample);

            try {
                Field behaviorField = bottomSheetDialog.getClass().getDeclaredField("behavior");
                behaviorField.setAccessible(true);
                final BottomSheetBehavior behavior = (BottomSheetBehavior) behaviorField.get(bottomSheetDialog);
                behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {

                    @Override
                    public void onStateChanged(@NonNull View bottomSheet, int newState) {
                        if (newState == BottomSheetBehavior.STATE_DRAGGING{ 
                            behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
                        }
                    }

                    @Override
                    public void onSlide(@NonNull View bottomSheet, float slideOffset) {
                    }
                });
            } catch (NoSuchFieldException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        }
    }
}

其中 R.layout.sample 是一个简单的布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <View
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#e479da" />

    <View
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#798de4" />

    <View
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#e4db79" />

</LinearLayout>

您将获得以下输出：

^{部分解法借鉴答案}

Answer 2

如果要禁用BottomSheetDialog拖动，请尝试设置setCancelable(false)。

Answer 3

这是答案的 Kotlin 版本，因为有人询问过使用数据绑定

@SuppressLint("RestrictedApi")
override fun setupDialog(d: Dialog?, style: Int) {
    super.setupDialog(d, style)
    dialogExampleBinding = DataBindingUtil
        .inflate(LayoutInflater.from(context), R.layout.dialogExample, null, false) //This is for data binding only
    d?.setContentView(R.layout.dialogExample)

    val myDialog:BottomSheetDialog = d as BottomSheetDialog
    val dField = myDialog.javaClass.getDeclaredField("behavior") //This is the correct name of the variable in the BottomSheetDialog class
    dField.isAccessible = true
    val behavior = dField.get(d) as BottomSheetBehavior<*>
    behavior.setBottomSheetCallback(object : BottomSheetBehavior.BottomSheetCallback() {
        override fun onStateChanged(bottomSheet: View, newState: Int) {
            if (newState == BottomSheetBehavior.STATE_DRAGGING) {
                behavior.state = BottomSheetBehavior.STATE_EXPANDED
            }
        }

        override fun onSlide(bottomSheet: View, slideOffset: Float) {}
    })
}

Answer 4

我的版本。它工作得很好。

编辑 09/04/2020： 将折旧 setBottomSheetCallback() 替换为 addBottomSheetCallback()

class FragMenuBDrawer : BottomSheetDialogFragment() {

    ...

    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
        val dialog = super.onCreateDialog(savedInstanceState) as BottomSheetDialog

        dialog.setOnShowListener {
            val bottomSheet = (it as BottomSheetDialog).findViewById<View>(com.google.android.material.R.id.design_bottom_sheet) as FrameLayout?
            val behavior = BottomSheetBehavior.from(bottomSheet!!)
            behavior.state = BottomSheetBehavior.STATE_EXPANDED

            behavior.addBottomSheetCallback(object : BottomSheetBehavior.BottomSheetCallback() {
                override fun onStateChanged(bottomSheet: View, newState: Int) {
                    if (newState == BottomSheetBehavior.STATE_DRAGGING) {
                        behavior.state = BottomSheetBehavior.STATE_EXPANDED
                    }
                }

                override fun onSlide(bottomSheet: View, slideOffset: Float) {}
            })
        }

        // Do something with your dialog like setContentView() or whatever
        return dialog
    }

    ...
}

Answer 5

只需添加 bottomSheetBehavior.setHideable(false);

您可以在 BottomSheetDialogFragment 中获取 BottomSheetBehaviour 的对象。

 CoordinatorLayout.LayoutParams params = (CoordinatorLayout.LayoutParams) ((View) view.getParent()).getLayoutParams();
            CoordinatorLayout.Behavior behavior = params.getBehavior();
            View parent = (View) view.getParent();
            getHeight(view);
            ((BottomSheetBehavior) behavior).setFitToContents(true);
            BottomSheetBehavior bottomSheetBehavior = BottomSheetBehavior.from(parent);
bottomSheetBehavior.setHideable(false);

Answer 6

我得到答案 here，我刚刚添加 content.setLayoutParams(new CoordinatorLayout.LayoutParams(CoordinatorLayout.LayoutParams.MATCH_PARENT, CoordinatorLayout.LayoutParams.MATCH_PARENT)); 使底部 Sheet 对话框片段高度为 match_parent 并在显示时使其变软。

@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    final Dialog d = super.onCreateDialog(savedInstanceState);
    // view hierarchy is inflated after dialog is shown
    d.setOnShowListener(new DialogInterface.OnShowListener() {
        @Override
        public void onShow(DialogInterface dialogInterface) {
            //this disables outside touch
            d.getWindow().findViewById(R.id.touch_outside).setOnClickListener(null);
            //this prevents dragging behavior
            View content = d.getWindow().findViewById(R.id.design_bottom_sheet);
            content.setLayoutParams(new CoordinatorLayout.LayoutParams(CoordinatorLayout.LayoutParams.MATCH_PARENT, CoordinatorLayout.LayoutParams.MATCH_PARENT));
            ((CoordinatorLayout.LayoutParams) content.getLayoutParams()).setBehavior(null);
        }
    });
    return d;
}

Answer 7

为时已晚但值得分享。

  behavior.setDraggable(false)

这一行完成了工作。

Answer 8

这是我设法修复它的方法：

mBehavior = BottomSheetBehavior.from((View) rootView.getParent());
mBehavior.setHideable(false);

Answer 9

评分最高的答案包含样板代码，例如 Field 和 try-catches。

所以这里有一个更好的 Kotlin 版本：

override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
    return super.onCreateDialog(savedInstanceState).apply {
        setOnShowListener(::onShow)
    }
}

private fun onShow(dialogInterface: DialogInterface) {
    val dialog = dialogInterface as BottomSheetDialog
    val frameLayout =
        dialog.findViewById<FrameLayout>(com.google.android.material.R.id.design_bottom_sheet)
            ?: return

    BottomSheetBehavior.from(frameLayout).apply {
        addBottomSheetCallback(object : BottomSheetBehavior.BottomSheetCallback() {
            override fun onStateChanged(bottomSheet: View, newState: Int) {
                if (newState == BottomSheetBehavior.STATE_DRAGGING)
                    state = BottomSheetBehavior.STATE_EXPANDED
            }

            override fun onSlide(bottomSheet: View, slideOffset: Float) = Unit
        })
    }
}

在BottomSheetDialogFragment

中使用

Answer 10

在 material 设计 1.2.0 发布后，有更简单的方法可以实现相同的目的。

https://developer.android.com/reference/com/google/android/material/bottomsheet/BottomSheetBehavior#setdraggable

从 BottomSheetDialogFragment 呼叫时：

    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
        val bottomSheetDialog = super.onCreateDialog(savedInstanceState) as BottomSheetDialog
        bottomSheetDialog.setOnShowListener {
            val bottomSheet = bottomSheetDialog
                .findViewById<FrameLayout>(com.google.android.material.R.id.design_bottom_sheet)

            if (bottomSheet != null) {
                val behavior: BottomSheetBehavior<*> = BottomSheetBehavior.from(bottomSheet)
                behavior.isDraggable = false
            }
        }
        return bottomSheetDialog
    }

或使用样式：

    <style name="SomeStyle" parent="Theme.MaterialComponents.Light.BottomSheetDialog">
        <item name="behavior_draggable">false</item>
    </style>

然后在对话片段的 onCreate 中：

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setStyle(DialogFragment.STYLE_NORMAL, R.style.SomeStyle)
    }

Answer 11

简单的解决方案

    CoordinatorLayout.Behavior<View> behavior;

    View profile_config_layout_bottom_sheet = findViewById(R.id.list_view_audience_profile_config_layout);

    CoordinatorLayout.LayoutParams layoutParams = (CoordinatorLayout.LayoutParams) profile_config_layout_bottom_sheet.getLayoutParams();
    behavior = layoutParams.getBehavior();
    assert behavior != null;
    ((BottomSheetBehavior<View>) behavior).addBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
        @Override
        public void onStateChanged(@NonNull View bottomSheet, int newState) {
            if (newState == BottomSheetBehavior.STATE_DRAGGING) {
                ((BottomSheetBehavior<View>) behavior).setState(BottomSheetBehavior.STATE_EXPANDED);
            } 
        }
        @Override
        public void onSlide(@NonNull View bottomSheet, float slideOffset) {}
    });

Answer 12

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
    //Disable dragging by set isDraggable to false
    val bottomSheetDialog = dialog as BottomSheetDialog
    val bottomSheetBehavior = bottomSheetDialog.behavior
    bottomSheetBehavior.isDraggable = false
}

Answer 13

这是我的解决方案：

setOnShowListener {
            Handler().post {
                val bottomSheet = findViewById<View>(R.id.design_bottom_sheet) as? FrameLayout
                bottomSheet?.let {
                    BottomSheetBehavior.from(it).state = STATE_EXPANDED

                    // Disable dialog dragging behavior which causes issue on EditText scroll!
                    BottomSheetBehavior.from(it).isDraggable = false
                }

            }
        }

Answer 14

这对我有用，先生

override fun onCreateDialog(savedInstanceState : Bundle?) : Dialog {
    val dialog = super.onCreateDialog(savedInstanceState);
    dialog.setOnShowListener {
        val bottomSheetDialog : BottomSheetDialog = it as BottomSheetDialog;
        var bottomSheetBehavior = BottomSheetBehavior<FrameLayout>();
        bottomSheetBehavior = bottomSheetDialog.getBehavior()
        bottomSheetBehavior.setDraggable(false);
    }
    return dialog }

Answer 15

我的简单解决方案：

 override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
    val dialog = BottomSheetDialog(requireContext(), R.style.DialogRoundedCornerStyle)
    dialog.behavior.apply {
        state = BottomSheetBehavior.STATE_EXPANDED
        isDraggable = false
    }
    return dialog
}

Answer 16

在你的oncreateView

//Kotlin
val baseDialog = dialog
if (baseDialog is BottomSheetDialog) {
    baseDialog.behavior.isDraggable = false
}
//If cancelable also not required.
isCancelable = false

Answer 17

他们也可以通过设置可拖动来做到这一点，所以这是我的另一个例子。

我的BottomSheetDialogFragment里面包含一个RecyclerView，如果你需要一个BottomSheetDialogFragment禁止向上拖，可以向下拖，我做的是我把RecyclerView设置为一个绝对高度

 <androidx.recyclerview.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="367dp"/>

Answer 18

如果您只想禁用 bottomsheet 的关闭，只需将 isCancelable false 设置为片段实例即可

val bSheet = BottomSheetFragment.newInstance("") bSheet.isCancelable = false bSheet.show(supportFragmentManager, "sheet")

如何禁用 BottomSheetDialogFragment 拖动

How to disable BottomSheetDialogFragment dragging

android

android-layout

android-view

android-dialog

bottom-sheet