如何在android中制作带有圆角的自定义对话框

Posted

技术标签:

【中文标题】如何在android中制作带有圆角的自定义对话框【英文标题】:How to make custom dialog with rounded corners in android 【发布时间】:2015-05-10 07:40:48 【问题描述】:

我正在尝试做的事情:我正在尝试在 android 中制作一个带有圆角的自定义对话框。

发生了什么:我可以制作自定义对话框,但它没有圆角。我尝试添加一个选择器,但仍然无法实现圆角。

下面是我的代码:


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_
    android:layout_
    android:background="@android:color/white"
    android:orientation="vertical" >

    <TableLayout
        android:layout_
        android:layout_ >

        <TableRow
            android:id="@+id/tableRow1"
            android:layout_
            android:layout_
            android:layout_marginTop="20dp"
            android:gravity="center" >

            <TextView
                android:id="@+id/textView1"
                android:layout_
                android:layout_
                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_
            android:layout_
            android:layout_marginTop="5dp"
            android:gravity="center" >

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



        <TableRow
            android:id="@+id/tableRow4"
            android:layout_
            android:layout_ >

            <Button
                android:id="@+id/btnReopenId"
                android:layout_
                android:layout_
                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_
                android:layout_
                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>

【问题讨论】:

你说的是浮动菜单吗? @Apurva ...我没有使用浮动菜单...但我正在谈论一个警报对话框(自定义) 我在询问浮动菜单,因为我只看到过圆角弹出菜单。从未见过带圆角的对话框。 http://***.com/questions/12501488/android-alertdialog-with-rounded-corners 【参考方案1】:

在drawable中创建一个XML文件,比如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 会将对话框布局放在根视图中,该根视图会隐藏自定义布局中的角。

Java:

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

科特林:

dialog.window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))

【讨论】:

这种方法的问题是按钮的背景也会是透明的。 dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); 是大多数其他 SO 线程所缺少的! +1 setBackgroundDrawable 似乎已被弃用......还有其他选择吗? setContentView之前添加dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); 除了显示对话框按钮的部分是透明的以外,此方法有效:/【参考方案2】:

您需要执行以下操作:

为对话框的背景创建一个圆角背景:

<?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>

现在在根布局中的对话框的 XML 文件中,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部分你需要这样做:

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

这对我来说非常适合。

【讨论】:

如果你想对所有角落使用相同的值,那么你应该使用 &lt;corners android:radius="8dp"/&gt; ,否则你会遇到渲染问题 @Mehran 好点。感谢您指出了这一点。你也可以分享这个信息的来源吗? @SMR Path.isConvex is not supported 如果您对所有角使用具有相同值的形状,则通常会在布局中收到警告。 ***.com/q/34736981/6605907【参考方案3】:

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

import androidx.fragment.app.DialogFragment

class RoundedDialog: DialogFragment() 

    override fun getTheme() = R.style.RoundedCornersDialog

    //....


与:

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

或者您可以使用材料组件库中包含的MaterialAlertDialogBuilder

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>

如果您不需要DialogFragment,只需使用MaterialAlertDialogBuilder

【讨论】:

这个对我有用。你为我节省了很多时间。谢谢:) 很棒的答案,完美!【参考方案4】:

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

这对我有用

【讨论】:

【参考方案5】:

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>

【讨论】:

这是我的解决方案,谢谢!就我而言,我添加了文本和背景颜色: 【参考方案6】:

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_
    android:layout_
    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_
        android:layout_
        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_
            android:layout_
            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();
    

【讨论】:

【参考方案7】:

设置

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

将阻止对话框投射阴影。

解决方法是使用

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>

【讨论】:

最优雅、最简单的解决方案,适用于 API 27、Android 8.1 Oreo。 如果您仍然坚持使用 Theme.AppCompat,这是 2020 年的正确答案 我不明白为什么这不是公认的答案... 完美运行。这应该是公认的答案【参考方案8】:

我做了一个没有背景可绘制的新方法是让它具有 CardView 作为父级并给它一个 app:cardCornerRadius="20dp" 然后将它添加到 java 类 dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

这是另一种制作方法。

【讨论】:

【参考方案9】:

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一个样式,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());
                
            );

这就是你需要做的。

【讨论】:

最正确的方式,别忘了用MaterialAlertDialogBu​​ilder代替AlertDialog.Builder 那是很棒的坦克 所有其他答案都已过时且模棱两可,但这是最简单,最准确的答案!谢谢【参考方案10】:

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>

详情请关注this。

【讨论】:

【参考方案11】:

对于任何喜欢用 XML 做事的人,特别是在您使用导航架构组件操作来导航到对话框的情况下

你可以使用:

<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>

【讨论】:

【参考方案12】:

最简单的方法是使用 from

CardView 及其卡片: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_
 android:layout_
 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_
    android:layout_
    android:layout_margin="12sp"
    android:orientation="vertical"
    android:weightSum="1">
    </RelativeLayout>

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

当你创建你的对话框时

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

【讨论】:

此解决方案不允许 CardView 高程阴影完全显示【参考方案13】:

如果您想控制对话框的角半径并保留高度阴影,这里是完整的解决方案

对话框:

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_
android:layout_>

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

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

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

关键是用另一个ViewGroup(这里是FrameLayout)包裹CardView,并设置margin为高程阴影创造空间。

【讨论】:

【参考方案14】:

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

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

在哪里 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>

【讨论】:

图层列表/透明形状是什么?【参考方案15】:

在 Kotlin 中,我使用了一个类 DoubleButtonDialog.Java,其中 window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT)) 行是重要的

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_
        android:layout_
        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_
            android:layout_
            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_
            android:layout_
            android:layout_marginEnd="@dimen/dimen_10"
            android:layout_weight=".4"
            android:text="@string/cancel" />-->

        <Button
            android:id="@+id/btnPositive"
            style="@style/ButtonStyle"
            android:layout_
            android:layout_
            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>

【讨论】:

【参考方案16】:

在drawable中创建一个xml,比如customd.xml。

然后在您的自定义对话框布局 xml 中将其设置为背景:

android:background="@drawable/customd"

最后在自定义Dialog类的java部分你需要这样做:

public class Customdialoque extends DialogFragment 

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

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

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

    return view;

【讨论】:

【参考方案17】:

这是一个基本的解决方案:

 <style name="Style_Dialog_Rounded_Corner" parent="Theme.AppCompat.Light.Dialog.Alert">
        <item name="android:windowBackground">@drawable/dialog_rounded_corner</item>
        <item name="android:windowMinWidthMinor">85%</item>
    </style>

在 Drawable 中创建形状:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#FFFFFF" />
    <corners android:radius="12dp" />
</shape>

Builder 构造器中的传递样式

AlertDialog alert = new AlertDialog.Builder(MainActivity.this,R.style.Style_Dialog_Rounded_Corner).create();

【讨论】:

【参考方案18】:

我在自定义布局中使用 CardView 实现了圆角对话框并设置了圆角半径。

这是我的 xml 代码。

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView 
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/bottomSheet"
android:layout_
android:layout_margin="@dimen/padding_5dp"
app:cardCornerRadius="@dimen/dimen_20dp"
android:layout_>

<androidx.constraintlayout.widget.ConstraintLayout
    android:layout_
    android:layout_
    android:background="@drawable/main_gradient_bg"
    android:paddingBottom="32dp">

    <TextView
        android:id="@+id/subdomain_label"
        android:layout_
        android:layout_
        android:layout_marginStart="@dimen/margin_32dp"
        android:layout_marginLeft="@dimen/margin_32dp"
        android:layout_marginTop="@dimen/margin_50dp"
        android:fontFamily="@font/nunito_sans"
        android:text="@string/enter_subdomain"
        android:textColor="@color/white"
        android:textSize="@dimen/size_18sp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toTopOf="parent" />


    <ImageView
        android:layout_
        android:layout_
        android:layout_marginTop="@dimen/dimen_45dp"
        app:layout_constraintLeft_toRightOf="@id/subdomain_label"
        app:layout_constraintTop_toTopOf="parent"
        app:srcCompat="@drawable/ic_baseline_info_24" />

    <EditText
        android:id="@+id/subdomain_edit_text_bottom_sheet"
        android:layout_
        android:layout_
        android:layout_marginStart="@dimen/dimen_20dp"
        android:layout_marginLeft="@dimen/dimen_20dp"
        android:layout_marginEnd="@dimen/dimen_20dp"
        android:layout_marginRight="@dimen/dimen_20dp"
        android:textColor="@color/white"
        android:theme="@style/EditTextTheme"
        app:layout_constraintTop_toBottomOf="@id/subdomain_label" />

    <Button
        android:id="@+id/proceed_btn"
        android:layout_
        android:layout_
        android:layout_marginTop="@dimen/margin_30dp"
        android:background="@drawable/primary_btn_bg"
        android:text="@string/proceed"
        android:textAllCaps="false"
        android:textColor="@color/white"
        android:textSize="@dimen/size_18sp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/subdomain_edit_text_bottom_sheet" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>

之后,我在 Kotlin 中这样称呼它:-

    val builder = AlertDialog.Builder(mContext)
    val viewGroup: ViewGroup = findViewById(android.R.id.content)
    val dialogView: View = 
    LayoutInflater.from(mContext).inflate(R.layout.subdomain_bottom_sheet, 
    viewGroup, false)
    val alertDialog: AlertDialog = builder.create()
    alertDialog.setView(dialogView,0,0,0,0)
    alertDialog.show()
    val windowParam = WindowManager.LayoutParams()
    windowParam.copyFrom(alertDialog.window!!.attributes)
    windowParam.width = AppConstant.getDisplayMetricsWidth(mContext) - 100
    windowParam.height = WindowManager.LayoutParams.WRAP_CONTENT
    windowParam.gravity = Gravity.CENTER
    alertDialog.window!!.attributes = windowParam
    
   
    alertDialog.window!!.setBackgroundDrawable
    (ColorDrawable(Color.TRANSPARENT))

最后一行非常重要。缺少它会导致颜色(主要是白色)显示在角落后面。

【讨论】:

以上是关于如何在android中制作带有圆角的自定义对话框的主要内容,如果未能解决你的问题,请参考以下文章

带有圆角而不是 100% 屏幕宽度的自定义片段对话框

如何在 android 中制作带有圆角的 EditText 组件

如何在Android drawable中为环形制作圆角

如何在android中的自定义圆角图像视图中设置图像

如何用圆角制作视图?

如何在android的linearlayout中删除阴影?