使用BottomSheetDialogFragment底部弹框

步骤1：为底页创建布局文件

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="@dimen/dp_8"
    android:layout_marginTop="@dimen/dp_8"
    android:orientation="vertical">

    <TextView
        android:id="@+id/tv_bottom_sheet_heading"
        android:layout_width="wrap_content"
        android:layout_height="@dimen/dp_56"
        android:layout_marginEnd="@dimen/dp_16"
        android:layout_marginStart="@dimen/dp_16"
        android:gravity="center"
        android:text="@string/bottom_sheet_option_heading"
        android:textColor="@color/md_bottom_sheet_title_color"
        android:textSize="16sp" />

    <TextView
        android:id="@+id/tv_btn_add_photo_camera"
        android:layout_width="match_parent"
        android:layout_height="@dimen/dp_48"
        android:layout_marginEnd="@dimen/dp_16"
        android:layout_marginStart="@dimen/dp_16"
        android:backgroundTint="@android:color/white"
        android:drawablePadding="@dimen/dp_32"
        android:drawableStart="@drawable/ic_add_a_photo"
        android:drawableTint="@color/md_bottom_sheet_text_color"
        android:gravity="start|center_vertical"
        android:text="@string/bottom_sheet_option_camera"
        android:textColor="@color/md_bottom_sheet_text_color"
        android:textSize="16sp" />

    <TextView
        android:id="@+id/tv_btn_add_photo_gallery"
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:layout_marginEnd="@dimen/dp_16"
        android:layout_marginStart="@dimen/dp_16"
        android:backgroundTint="@android:color/white"
        android:drawablePadding="@dimen/dp_32"
        android:drawableStart="@drawable/ic_gallery_photo"
        android:drawableTint="@color/md_bottom_sheet_text_color"
        android:gravity="start|center_vertical"
        android:text="@string/bottom_sheet_option_gallery"
        android:textColor="@color/md_bottom_sheet_text_color"
        android:textSize="16sp" />

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:layout_marginBottom="@dimen/dp_8"
   
android:layout_marginTop="@dimen/md_bottom_sheet_separator_top_margin"
        android:background="@color/grayTextColor" />

    <TextView
        android:id="@+id/tv_btn_remove_photo"
        android:layout_width="match_parent"
        android:layout_height="@dimen/dp_48"
        android:layout_marginEnd="@dimen/dp_16"
        android:layout_marginStart="@dimen/dp_16"
        android:backgroundTint="@android:color/white"
        android:drawablePadding="@dimen/dp_32"
        android:drawableStart="@drawable/ic_delete_photo"
        android:drawableTint="@color/md_bottom_sheet_text_color"
        android:gravity="start|center_vertical"
        android:text="@string/bottom_sheet_option_remove_photo"
        android:textColor="@color/md_bottom_sheet_text_color"
        android:textSize="16sp" />

</LinearLayout>

步骤2：创建dimen.xml文件：

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <dimen name="dp_8">8dp</dimen>
    <dimen name="dp_16">16dp</dimen>
    <dimen name="dp_24">24dp</dimen>
    <dimen name="dp_32">32dp</dimen>
    <dimen name="dp_40">40dp</dimen>
    <dimen name="dp_48">48dp</dimen>
    <dimen name="dp_56">56dp</dimen>
    <dimen name="dp_64">64dp</dimen>
    <dimen name="dp_72">72dp</dimen>
    <dimen name="dp_80">80dp</dimen>
    <dimen name="dp_160">160dp</dimen>

    <dimen name="md_bottom_sheet_separator_top_margin">7dp</dimen>
</resources>

步骤3：string.xml文件：

<string name="bottom_sheet_option_camera">Use Camera</string>
<string name="bottom_sheet_option_gallery">Upload from Gallery</string>
<string name="bottom_sheet_option_heading">Add Photo</string>
<string name="bottom_sheet_option_remove_photo">Remove Photo</string>

步骤4：创建自定义BottomSheetDialogFragment

public class AddPhotoBottomDialogFragment extends BottomSheetDialogFragment{

    public static AddPhotoBottomDialogFragment newInstance() {
        return new AddPhotoBottomDialogFragment();
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater,
                             @Nullable ViewGroup container,
                             @Nullable Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.layout_photo_bottom_sheet, container,
                false);

        // get the views and attach the listener

        return view;

    }
}

步骤5：在Activity中弹出FragmentDialog：

AddPhotoBottomDialogFragment addPhotoBottomDialogFragment =
        AddPhotoBottomDialogFragment.newInstance();
addPhotoBottomDialogFragment.show(getSupportFragmentManager(),
        "add_photo_dialog_fragment");

就这样完成了：

您可以在自定义底部工作表对话框片段中创建自定义回调接口，以在单击底部的按钮时通知Activity