Question

我尝试将边距添加到我的BottomSheetDialogFragment中，但是它对边距没有任何作用。

const app = require('express')();
const server = require('http').createServer(app);
const io = require('socket.io')(server);

编辑：_________________________________________________________________

我尝试将XML更改为下面的答案，但是它仍然没有为我的下层对话框碎片创造边距。

底部工作表对话框片段类的代码：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_margin="16dp">

    <TextView
        android:id="@+id/alertdialog_fragmail_newmessage"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Test 1"
        android:textStyle="bold"
        android:padding="16dp"
        android:textColor="@color/colorBlackFont"
        android:layout_alignParentTop="true"
        android:gravity="center_vertical"
        android:drawablePadding="16dp"/>


  //More Textviews

</RelativeLayout>

膨胀底表的代码：

public class FragMailMoreDialog extends BottomSheetDialogFragment {

    private static final String TAG = "FragMailMoreDialog";

    private Context mContext;


    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mContext = getContext();
    }

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater,
                             @Nullable ViewGroup container,
                             @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.alertdialog_layout_fragmailmore, container, false);
        ButterKnife.bind(this, view);


        return view;
    }
}

Answer 1

一些棘手的解决方案：

我将布局包裹在另一个RelativeLayout中，并使该布局的背景透明。

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="@android:color/transparent">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorWhite"
        android:layout_margin="16dp">

    <TextView
        android:id="@+id/alertdialog_fragmail_newmessage"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Test 1"
        android:textStyle="bold"
        android:padding="16dp"
        android:textColor="@color/colorBlackFont"
        android:layout_alignParentTop="true"
        android:gravity="center_vertical"
        android:drawablePadding="16dp"
        android:background="?attr/selectableItemBackground"/>
    </RelativeLayout>
</RelativeLayout>

在BottomSheetDialogFragment中，您需要覆盖setupDialog

@Override
    public void setupDialog(Dialog dialog, int style) {
        View contentView = View.inflate(getContext(), R.layout.alertdialog_layout_fragmailmore, null);
        dialog.setContentView(contentView);
        ((View) contentView.getParent()).setBackgroundColor(getResources().getColor(android.R.color.transparent));
    }

贷记给该人：

https://stackoverflow.com/a/55219784/11110509

Answer 2

覆盖 setupDialog() 对我不起作用，而且我还需要使用 onCreateView() 来扩充对话框布局。因此，这可以在自定义的 BottomSheetDialogFragment 类中以编程方式解决：

创建无背景样式并在 onCreateDialog 或 getTheme() 中为对话框设置

<style name="NoBackgroundDialogTheme" parent="Theme.AppCompat.Light.Dialog">
    <item name="android:windowBackground">@null</item>
</style>

使用对话框布局根部的 layoutParams 设置边距

Java：

public class FragMailMoreDialog extends BottomSheetDialogFragment {

    //.... Omitted code

        
    @Override
    public int getTheme() {
       // Step 1
       return R.style.NoBackgroundDialogTheme;
    }


    @Override
    public void onViewCreated(@NonNull @NotNull View view, @Nullable @org.jetbrains.annotations.Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        
        // Step 2
        addMargin(view);

    }

    private void addMargin(View view) {
        FrameLayout.LayoutParams layoutParams =
                (FrameLayout.LayoutParams) view.getLayoutParams();
        int margin_16dp = dpToPx(16);
        layoutParams.setMargins(margin_16dp, margin_16dp, margin_16dp, margin_16dp);
        view.setLayoutParams(layoutParams);
        view.requestLayout();
    }

    private int dpToPx(int dp) {
        Resources r = getResources();
        int px = (int) TypedValue.applyDimension(
                TypedValue.COMPLEX_UNIT_DIP,
                dp,
                r.getDisplayMetrics()
        );
        return px;
    }

}

科特林：

class FragMailMoreDialog() : BottomSheetDialogFragment() {

    override fun getTheme(): Int {
        return R.style.NoBackgroundDialogTheme
    }

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {

        val view: View = View.inflate(context, R.layout.my_fragment_bottomsheet, null)
        return view
    }


    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        addMargin(view)
    }

    private fun addMargin(view: View) {
        val layoutParams: FrameLayout.LayoutParams =
            view.layoutParams as FrameLayout.LayoutParams
        val margin_16dp = 16.toPx().toInt()
        layoutParams.setMargins(margin_16dp, margin_16dp, margin_16dp, margin_16dp)

        view.layoutParams = layoutParams
    }


    fun Number.toPx() = TypedValue.applyDimension(
        TypedValue.COMPLEX_UNIT_DIP,
        this.toFloat(),
        Resources.getSystem().displayMetrics
    )

}

Answer 3

您可以通过两种方法解决此问题：

第一个创建另一个嵌套布局，然后在此嵌套布局中添加边距而不是根布局

<?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">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="16dp">

        <TextView
            android:id="@+id/alertdialog_fragmail_newmessage"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:drawablePadding="16dp"
            android:gravity="center_vertical"
            android:padding="16dp"
            android:text="Test 1"
            android:textColor="@color/colorBlackFont"
            android:textStyle="bold" />

  <!--  More Views -->

</RelativeLayout>

第二个在根布局的每个单独视图中添加页边空白

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/alertdialog_fragmail_newmessage"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_margin="16dp"
        android:drawablePadding="16dp"
        android:gravity="center_vertical"
        android:padding="16dp"
        android:text="Test 1"
        android:textColor="@color/colorBlackFont"
        android:textStyle="bold" />

  <!--  More Views -->

</RelativeLayout>

Answer 4

不确定为什么要为BottomSheetDialogFragment提供边距。它是一个DialogFragment，显示在您的Activity / Fragment的顶部。向其添加边距不会执行任何操作。如果您需要的是TextView的顶部填充（Test1）和TextView的底部填充（Test2），则应将padding_top添加到Test1，将padding_bottom添加到Test2，例如：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_margin="16dp">

    <TextView
        android:id="@+id/alertdialog_fragmail_newmessage"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Test 1"
        android:textStyle="bold"
        android:paddingTop="32dp"
        android:paddingStart="16dp"
        android:paddingEnd="16dp"
        android:paddingBottom="16dp"
        android:textColor="@color/colorBlackFont"
        android:layout_alignParentTop="true"
        android:gravity="center_vertical"
        android:drawablePadding="16dp"/>
</RelativeLayout>

Answer 5

我为 Constraint 子级添加了边距，并为父级 Constraint 背景设置透明 Bottom Sheet layout Image

<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="#99000000"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <androidx.constraintlayout.widget.ConstraintLayout
        style="@style/BottomSheetDialogStyle"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="@dimen/margin_medium"
        android:layout_marginEnd="@dimen/margin_medium"
        android:orientation="vertical"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent">

        <androidx.appcompat.widget.AppCompatImageView
            android:id="@+id/iv_add_post_ic"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="@dimen/margin_medium"
            android:layout_marginTop="@dimen/margin_form"
            android:layout_marginBottom="@dimen/margin_small"
            android:src="@drawable/ic_add_post"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.appcompat.widget.AppCompatTextView
            android:id="@+id/tv_add_post"
            style="@style/Widget.nejmo.Text.Medium"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="@dimen/margin_form"
            android:layout_marginHorizontal="@dimen/margin_small"
            android:layout_marginStart="@dimen/margin_small"
            android:layout_marginBottom="@dimen/margin_small"
            android:text="@string/option_add_post_txt"
            android:textColor="@color/dusk"
            app:layout_constraintBottom_toBottomOf="@+id/iv_add_post_ic"
            app:layout_constraintStart_toEndOf="@+id/iv_add_post_ic"
            app:layout_constraintTop_toTopOf="@+id/iv_add_post_ic" />


        <androidx.appcompat.widget.AppCompatImageView
            android:id="@+id/iv_add_question_ic"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="@dimen/margin_medium"
            android:layout_marginTop="@dimen/margin_medium"
            android:layout_marginBottom="@dimen/margin_medium"
            android:src="@drawable/ic_add_question"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/iv_add_post_ic" />

        <androidx.appcompat.widget.AppCompatTextView
            android:id="@+id/tv_add_question"
            style="@style/Widget.nejmo.Text.Medium"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="@dimen/margin_form"
            android:layout_marginHorizontal="@dimen/margin_small"
            android:layout_marginStart="@dimen/margin_small"
            android:layout_marginTop="@dimen/margin_medium"
            android:layout_marginBottom="@dimen/margin_medium"
            android:text="@string/option_add_question_txt"
            android:textColor="@color/dusk"
            app:layout_constraintBottom_toBottomOf="@+id/iv_add_question_ic"
            app:layout_constraintStart_toEndOf="@+id/iv_add_question_ic"
            app:layout_constraintTop_toTopOf="@+id/iv_add_question_ic" />

    </androidx.constraintlayout.widget.ConstraintLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

Answer 6

100% 有效

覆盖 `/Testtt/${isData}` 返回您自己的对话框

onCreateDialog()

Answer 7

类似于@Zain 的回答：

override fun onCreateView(...) {
    ...
}

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)

    // FrameLayout.LayoutParams, CoordinatorLayout.LayoutParams or other container in your root layout.
    ((view.parent as View).layoutParams as FrameLayout.LayoutParams).topMargin = 100
}

向BottomSheetDialogFragment添加边距

7 个答案: