如何在Android中制作带有圆角的自定义对话框


133

我想做的是:我想在带有圆角的android中创建自定义对话框。

发生了什么:我可以进行自定义对话框,但没有圆角。我尝试添加选择器,但仍然无法实现圆角。

下面是我的相同代码:


Java代码:

private void launchDismissDlg() {

        dialog = new Dialog(getActivity(), android.R.style.Theme_Dialog);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        dialog.setContentView(R.layout.dlg_dismiss);
        dialog.setCanceledOnTouchOutside(true);

        Button btnReopenId = (Button) dialog.findViewById(R.id.btnReopenId);
        Button btnCancelId = (Button) dialog.findViewById(R.id.btnCancelId);

        btnReopenId.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {



            }
        });


        btnCancelId.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {



            }
        });
        dialog.setCanceledOnTouchOutside(false);
        dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
        dialog.getWindow().setLayout(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT);
        dialog.show();

    }

xml代码:

<?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="match_parent"
    android:background="@android:color/white"
    android:orientation="vertical" >

    <TableLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <TableRow
            android:id="@+id/tableRow1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:gravity="center" >

            <TextView
                android:id="@+id/textView1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:text="&quot;I WOULD LIKE TO DISMISS THE VENDOR&quot;"
                android:textColor="@color/col_dlg_blue_light"
                android:textSize="14sp"
                android:textStyle="bold" />
        </TableRow>

        <TableRow
            android:id="@+id/tableRow2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="5dp"
            android:gravity="center" >

            <TextView
                android:id="@+id/textView2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:text="BECAUSE"
                android:textColor="@android:color/black"
                android:textStyle="bold" />
        </TableRow>



        <TableRow
            android:id="@+id/tableRow4"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" >

            <Button
                android:id="@+id/btnReopenId"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:background="@color/col_dlg_green_light"
                android:text="REOPEN"
                android:padding="5dp"
                android:textSize="14sp"
                android:textColor="@android:color/white"
                android:textStyle="bold" />

            <Button
                android:id="@+id/btnCancelId"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:background="@color/col_dlg_pink_light"
                android:text="CANCEL"
                android:padding="5dp"
                android:textSize="14sp"
                android:textColor="@android:color/white"
                android:textStyle="bold" />
        </TableRow>
    </TableLayout>

</LinearLayout>

您在谈论浮动菜单吗?
阿普尔瓦(Apurva)2015年

@Apurva ...我还没有使用过浮动菜单...但是我正在谈论一个警报对话框(自定义)
Devrath

我问浮动菜单是因为我只看到过这样的圆角弹出窗口。从未见过的带有圆角的对话框。
阿普尔瓦(Apurva)2015年

Answers:


349

在drawable中创建一个xml,例如dialog_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid
        android:color="@color/white"/>
    <corners
        android:radius="30dp" />
    <padding
        android:left="10dp"
        android:top="10dp"
        android:right="10dp"
        android:bottom="10dp" />
</shape>

将其设置为布局xml中的背景

android:background="@drawable/dialog_bg"

将对话框的根视图的背景设置为透明,因为Android会将对话框布局放置在根视图中,该视图隐藏了自定义布局中的各个角。

dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

1
这种方法的问题在于按钮的背景也将是透明的。
Henrique de Sousa 2015年

46
dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));其他大多数SO线程上的问题是什么!+1
Randika Vishman '16

背景TRANSPARENT未显示,请帮助我,先生,@ koma yip
Gowthaman M

3
setBackgroundDrawable似乎已被弃用...还有其他选择吗?
DarkCygnus

3
dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));在此之前添加setContentView
Ravi Vaniya

23

您需要执行以下操作:

  • 创建一个带有圆角的背景作为对话框的背景:

    <?xml version="1.0" encoding="utf-8"?>
    <shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >
    
        <solid android:color="#fff" />
    
        <corners
            android:bottomLeftRadius="8dp"
            android:bottomRightRadius="8dp"
            android:topLeftRadius="8dp"
            android:topRightRadius="8dp" />
    
    </shape>
  • 现在,在对话框的XML文件的根布局中,使用具有所需边距的背景:

    android:layout_marginLeft="20dip"
    android:layout_marginRight="20dip"
    android:background="@drawable/dialog_background"
  • 最后,在Java部分中,您需要执行以下操作:

    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(layoutResId);
    View v = getWindow().getDecorView();
    v.setBackgroundResource(android.R.color.transparent);

这对我来说非常合适。


1
如果要对所有角使用相同的值,则应使用<corners android:radius="8dp"/>,否则会出现渲染问题
Mehran

1
@Mehran好点。感谢您指出了这一点。您还可以共享此信息的来源吗?
SMR

@SMR Path.isConvex is not supported,如果对所有角使用相同值的形状,通常会在布局中得到警告。stackoverflow.com/q/34736981/6605907
Mehran,


13

dimen.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <integer name="weight">1</integer>

    <dimen name="dialog_top_radius">21dp</dimen>

    <dimen name="textview_dialog_head_min_height">50dp</dimen>
    <dimen name="textview_dialog_drawable_padding">5dp</dimen>

    <dimen name="button_dialog_layout_margin">3dp</dimen>


</resources>

styles.xml

<style name="TextView.Dialog">
        <item name="android:paddingLeft">@dimen/dimen_size</item>
        <item name="android:paddingRight">@dimen/dimen_size</item>
        <item name="android:gravity">center_vertical</item>
        <item name="android:textColor">@color/black</item>
    </style>

    <style name="TextView.Dialog.Head">
        <item name="android:minHeight">@dimen/textview_dialog_head_min_height</item>
        <item name="android:textColor">@color/white</item>
        <item name="android:background">@drawable/dialog_title_style</item>
        <item name="android:drawablePadding">@dimen/textview_dialog_drawable_padding</item>
    </style>

    <style name="TextView.Dialog.Text">
        <item name="android:textAppearance">@style/Font.Medium.16</item>
    </style>

    <style name="Button" parent="Base.Widget.AppCompat.Button">
        <item name="android:layout_height">@dimen/button_min_height</item>
        <item name="android:layout_width">match_parent</item>
        <item name="android:textColor">@color/white</item>
        <item name="android:gravity">center</item>
        <item name="android:textAppearance">@style/Font.Medium.20</item>
    </style>

 <style name="Button.Dialog">
        <item name="android:layout_weight">@integer/weight</item>
        <item name="android:layout_margin">@dimen/button_dialog_layout_margin</item>
    </style>

    <style name="Button.Dialog.Middle">
        <item name="android:background">@drawable/button_primary_selector</item>
    </style>

dialog_title_style.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <gradient
        android:angle="270"
        android:endColor="@color/primaryDark"
        android:startColor="@color/primaryDark" />

    <corners
        android:topLeftRadius="@dimen/dialog_top_radius"
        android:topRightRadius="@dimen/dialog_top_radius" />

</shape>

dialog_background.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="@color/backgroundDialog" />
    <corners
        android:topLeftRadius="@dimen/dialog_top_radius"
        android:topRightRadius="@dimen/dialog_top_radius" />
    <padding />
</shape>

dialog_one_button.xml

<?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:background="@drawable/dailog_background"
    android:orientation="vertical">

    <TextView
        android:id="@+id/dialogOneButtonTitle"
        style="@style/TextView.Dialog.Head"
        android:text="Process Completed" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="16dp"
        android:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"
        android:orientation="vertical">

        <TextView
            android:id="@+id/dialogOneButtonText"
            style="@style/TextView.Dialog.Text"
            android:text="Return the main menu" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <Button
                android:id="@+id/dialogOneButtonOkButton"
                style="@style/Button.Dialog.Middle"
                android:text="Ok" />

        </LinearLayout>

    </LinearLayout>

</LinearLayout>

OneButtonDialog.java

package com.example.sametoztoprak.concept.dialogs;

import android.app.Dialog;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.TextView;

import com.example.sametoztoprak.concept.R;
import com.example.sametoztoprak.concept.models.DialogFields;

/**
 * Created by sametoztoprak on 26/09/2017.
 */

public class OneButtonDialog extends Dialog implements View.OnClickListener {

    private static OneButtonDialog oneButtonDialog;
    private static DialogFields dialogFields;

    private Button dialogOneButtonOkButton;
    private TextView dialogOneButtonText;
    private TextView dialogOneButtonTitle;

    public OneButtonDialog(AppCompatActivity activity) {
        super(activity);
    }

    public static OneButtonDialog getInstance(AppCompatActivity activity, DialogFields dialogFields) {
        OneButtonDialog.dialogFields = dialogFields;
        return oneButtonDialog = (oneButtonDialog == null) ? new OneButtonDialog(activity) : oneButtonDialog;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.dialog_one_button);
        getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

        dialogOneButtonTitle = (TextView) findViewById(R.id.dialogOneButtonTitle);
        dialogOneButtonText = (TextView) findViewById(R.id.dialogOneButtonText);
        dialogOneButtonOkButton = (Button) findViewById(R.id.dialogOneButtonOkButton);

        dialogOneButtonOkButton.setOnClickListener(this);
    }

    @Override
    protected void onStart() {
        super.onStart();
        dialogOneButtonTitle.setText(dialogFields.getTitle());
        dialogOneButtonText.setText(dialogFields.getText());
        dialogOneButtonOkButton.setText(dialogFields.getOneButton());
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.dialogOneButtonOkButton:

                break;
            default:
                break;
        }
        dismiss();
    }
}

在此处输入图片说明


10

我做了一个没有背景可绘制的新方法,那就是让CardView作为父对象并给它一个app:cardCornerRadius="20dp",然后将其添加到java类中dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

这是另一种实现方法。


9

如果您使用材料组件

CustomDialog.kt

class CustomDialog: DialogFragment() {

    override fun getTheme() = R.style.RoundedCornersDialog

}

styles.xml

<style name="RoundedCornersDialog" parent="Theme.MaterialComponents.Dialog">
    <item name="dialogCornerRadius">dimen</item>
</style>

这是我的解决方案,谢谢!就我而言,我添加了文本和背景色:<style name =“ RoundedCornersDialog” parent =“ Theme.MaterialComponents.Dialog”> <item name =“ dialogCornerRadius”> 15dp </ item> <item name =“ android:background” > @ color / white </ item> <item name =“ android:textColor”> @ color / black </ item> </ style>
fvaldivia

6

您可以将形状用作背景-

<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="@android:color/transparent"/>
<corners android:radius="10dp" />
<padding android:left="10dp" android:right="10dp"/>
</shape>

有一看这个详细。


6

最简单的方法是使用

CardView及其卡:cardCornerRadius

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView 
 xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:card="http://schemas.android.com/apk/res-auto"
 android:orientation="vertical"
 android:id="@+id/cardlist_item"
 android:layout_width="match_parent"
 android:layout_height="130dp"
 card:cardCornerRadius="40dp"
 android:layout_marginLeft="8dp"
 android:layout_marginRight="8dp"
 android:layout_marginTop="5dp"
 android:layout_marginBottom="5dp"
 android:background="@color/white">

  <RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="12sp"
    android:orientation="vertical"
    android:weightSum="1">
    </RelativeLayout>

</android.support.v7.widget.CardView>

当您创建对话框时

dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

此解决方案无法完全显示CardView高程阴影
laszlo

5

设置

dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

将防止对话框蒙上阴影。

解决办法是用

dialog.getWindow().setBackgroundDrawableResource(R.drawable.dialog_rounded_background);

R.drawable.dialog_rounded_background在哪里

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item>
        <shape android:shape="rectangle" android:padding="10dp">
            <solid
                android:color="@color/dialog_bg_color"/>
            <corners
                android:radius="30dp" />
        </shape>
    </item>

</layer-list>

1
适用于API 27(Android 8.1 Oreo)的最优雅,最简单的解决方案。
ManuelTS

这是在2020年正确的答案,如果你还是坚持了Theme.AppCompat
barnacle.m

4

对于喜欢用XML进行操作的任何人,尤其是在您使用导航体系结构组件操作来导航到对话框的情况下

您可以使用:

<style name="DialogStyle" parent="ThemeOverlay.MaterialComponents.Dialog.Alert">

    <!-- dialog_background is drawable shape with corner radius -->
    <item name="android:background">@drawable/dialog_background</item>

    <item name="android:windowBackground">@android:color/transparent</item>
</style>

这是一个很棒的短篇!(y)
HasH

4

您可以简单地使用MaterialAlertDialogBu​​ilder创建带有圆角的自定义对话框。

首先为材质对话框创建样式,如下所示:

<style name="MyRounded.MaterialComponents.MaterialAlertDialog" parent="@style/ThemeOverlay.MaterialComponents.MaterialAlertDialog">
    <item name="shapeAppearanceOverlay">@style/ShapeAppearanceOverlay.App.CustomDialog.Rounded
    </item>
    <item name="colorSurface">@color/YOUR_COLOR</item>
</style>

<style name="ShapeAppearanceOverlay.App.CustomDialog.Rounded" parent="">
    <item name="cornerFamily">rounded</item>
    <item name="cornerSize">10dp</item>
</style>

然后在Java类中创建一个Alert Dialog对象,如下所示:

AlertDialog alertDialog =  new MaterialAlertDialogBuilder(this,R.style.MyRounded_MaterialComponents_MaterialAlertDialog)  // for fragment you can use getActivity() instead of this 
                    .setView(R.layout.custom_layout) // custom layout is here 
                    .show();

            final EditText editText = alertDialog.findViewById(R.id.custom_layout_text);   // access to text view of custom layout         
            Button btn = alertDialog.findViewById(R.id.custom_layout_btn);

            btn.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {

                    Log.d(TAG, "onClick: " + editText.getText().toString());
                }
            });

这就是您需要做的。


最正确的方法,不要忘记使用MaterialAlertDialogBu​​ilder而不是AlertDialog.Builder
Zakhar Rodionov

很棒的坦克
吉利安·马克斯

所有其他答案都是过时且含糊的,但这是最简单,最准确的答案!谢谢
hamza khan

4

使用Androidx库和Material Components Theme,您可以覆盖该getTheme()方法:

import androidx.fragment.app.DialogFragment

class RoundedDialog: DialogFragment() {

    override fun getTheme() = R.style.RoundedCornersDialog

    //....

}

与:

<style name="RoundedCornersDialog" parent="@style/ThemeOverlay.MaterialComponents.Dialog">
    <item name="dialogCornerRadius">16dp</item>
</style>

或者,您可以使用MaterialAlertDialogBuilder材料组件库中包含的:

import androidx.fragment.app.DialogFragment
import com.google.android.material.dialog.MaterialAlertDialogBuilder

class RoundedAlertDialog : DialogFragment() {

    //...

    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
        return MaterialAlertDialogBuilder(requireActivity(), R.style.MaterialAlertDialog_rounded)
                .setTitle("Test")
                .setMessage("Message")
                .setPositiveButton("OK", null)
                .create()
    }

}

与:

<style name="MaterialAlertDialog_rounded" parent="@style/ThemeOverlay.MaterialComponents.MaterialAlertDialog">
    <item name="shapeAppearanceOverlay">@style/DialogCorners</item>
</style>

<style name="DialogCorners">
    <item name="cornerFamily">rounded</item>
    <item name="cornerSize">16dp</item>
</style>

在此处输入图片说明

如果您不需要DialogFragment,请使用MaterialAlertDialogBuilder


3

如果要控制对话框的拐角半径并保留高程阴影,这是完整的解决方案

对话:

class OptionsDialog: DialogFragment() {

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup, savedInstanceState: Bundle?): View {
    dialog?.window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
    return inflater.inflate(R.layout.dialog_options, container)
}

}

dialog_options.xml布局:

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content">

<androidx.cardview.widget.CardView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margin="40dp"
    app:cardElevation="20dp"
    app:cardCornerRadius="12dp">

    <androidx.constraintlayout.widget.ConstraintLayout
        id="@+id/actual_content_goes_here"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
    </androidx.constraintlayout.widget.ConstraintLayout>

</androidx.cardview.widget.CardView>
</FrameLayout>

关键是用另一个ViewGroup(这里是FrameLayout)包装CardView,并设置边距为高程阴影创建空间。


3

在Kotlin中,我使用的是DoublelineDialog.Java类,其中line window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))是重要的

class DoubleButtonDialog(context: Context) : Dialog(context, R.style.DialogTheme) {

    private var cancelableDialog: Boolean = true
    private var titleDialog: String? = null
    private var messageDialog: String? = null
    private var leftButtonDialog: String = "Yes"
    //    private var rightButtonDialog: String? = null
    private var onClickListenerDialog: OnClickListener? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
        //requestWindowFeature(android.view.Window.FEATURE_NO_TITLE)
        setCancelable(cancelableDialog)
        setContentView(R.layout.dialog_double_button)
//        val btnNegative = findViewById<Button>(R.id.btnNegative)
//        btnNegative.visibility = View.GONE
//        if (rightButtonDialog != null) {
//            btnNegative.visibility = View.VISIBLE
//            btnNegative.text = rightButtonDialog
//            btnNegative.setOnClickListener {
//                dismiss()
//                onClickListenerDialog?.onClickCancel()
//            }
//        }
        val btnPositive = findViewById<Button>(R.id.btnPositive)
        btnPositive.text = leftButtonDialog
        btnPositive.setOnClickListener {
            onClickListenerDialog?.onClick()
            dismiss()
        }
        (findViewById<TextView>(R.id.title)).text = titleDialog
        (findViewById<TextView>(R.id.message)).text = messageDialog
        super.onCreate(savedInstanceState)
    }

    constructor(
        context: Context, cancelableDialog: Boolean, titleDialog: String?,
        messageDialog: String, leftButtonDialog: String, /*rightButtonDialog: String?,*/
        onClickListenerDialog: OnClickListener
    ) : this(context) {
        this.cancelableDialog = cancelableDialog
        this.titleDialog = titleDialog
        this.messageDialog = messageDialog
        this.leftButtonDialog = leftButtonDialog
//        this.rightButtonDialog = rightButtonDialog
        this.onClickListenerDialog = onClickListenerDialog
    }
}


interface OnClickListener {
    //    fun onClickCancel()
    fun onClick()
}

在布局中,我们可以创建一个dialog_double_button.xml

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_margin="@dimen/dimen_10"
        android:background="@drawable/bg_double_button"
        android:orientation="vertical"
        android:padding="@dimen/dimen_5">

        <TextView
            android:id="@+id/title"
            style="@style/TextViewStyle"
            android:layout_gravity="center_horizontal"
            android:layout_margin="@dimen/dimen_10"
            android:fontFamily="@font/campton_semi_bold"
            android:textColor="@color/red_dark4"
            android:textSize="@dimen/text_size_24"
            tools:text="@string/dial" />

        <TextView
            android:id="@+id/message"
            style="@style/TextViewStyle"
            android:layout_gravity="center_horizontal"
            android:layout_margin="@dimen/dimen_10"
            android:gravity="center"
            android:textColor="@color/semi_gray_2"
            tools:text="@string/diling_police_number" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dimen_10"
            android:gravity="center"
        android:orientation="horizontal"
        android:padding="@dimen/dimen_5">

        <!--<Button
            android:id="@+id/btnNegative"
            style="@style/ButtonStyle"
            android:layout_width="0dp"
            android:layout_height="@dimen/dimen_40"
            android:layout_marginEnd="@dimen/dimen_10"
            android:layout_weight=".4"
            android:text="@string/cancel" />-->

        <Button
            android:id="@+id/btnPositive"
            style="@style/ButtonStyle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:backgroundTint="@color/red_dark4"
            android:fontFamily="@font/campton_semi_bold"
            android:padding="@dimen/dimen_10"
            android:text="@string/proceed"
            android:textAllCaps="false"
            android:textColor="@color/white"
            android:textSize="@dimen/text_size_20" />
    </LinearLayout>
</LinearLayout>

然后使用drawable.xml作为

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid
        android:color="@color/white"/>
    <corners
        android:radius="@dimen/dimen_10" />
    <padding
        android:left="@dimen/dimen_10"
        android:top="@dimen/dimen_10"
        android:right="@dimen/dimen_10"
        android:bottom="@dimen/dimen_10" />
</shape>

3

对于API级别> = 28可用属性android:dialogCornerRadius。要支持以前的API版本,请使用

<style name="RoundedDialog" parent="Theme.AppCompat.Light.Dialog.Alert">
        <item name="android:windowBackground">@drawable/dialog_bg</item>
    </style>

其中dialog_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item >
        <shape >
            <solid android:color="@android:color/transparent" />
        </shape>
    </item>
    <item
        android:left="16dp"
        android:right="16dp">
        <shape>
            <solid
                android:color="@color/white"/>
            <corners
                android:radius="8dp" />

            <padding
                android:left="16dp"
                android:right="16dp" />
        </shape>
    </item>
</layer-list>

图层列表/透明形状是什么?
Ixx
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