通过扩展 Dialog 或 AlertDialog 自定义对话框

发布于 2024-08-16 10:32:39 字数 916 浏览 8 评论 0原文

我想制作一个自定义Dialog。因为我不喜欢它的风格，所以我想要圆角矩形而不是尖角。我知道如何在 AndroidManifest.xml 中按主题实现它，例如，我使用：

android:theme="@style/Theme.CustomDialog"

和 Theme.CustomDialog.xml：

<style name="Theme.CustomDialog" parent="android:style/Theme.Dialog">
        <item name="android:windowBackground">@drawable/filled_box</item>
        <item name="android:windowNoTitle">true</item>

filled_box.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#ffffffff"/>
    <stroke android:width="3dp" color="#ffff8080"/>
    <corners android:radius="30dp" />
    <padding android:left="10dp" android:top="10dp"
        android:right="10dp" android:bottom="10dp" />
</shape>

如何通过扩展来实现类似的结果对话框还是AlertDialog？

原文

I want to make a custom Dialog. Because I don't like its style, I want to have rounded rectangle rather than sharp corners. I know how to implement it by theme in AndroidManifest.xml, for example, I use:

android:theme="@style/Theme.CustomDialog"

And Theme.CustomDialog.xml:

<style name="Theme.CustomDialog" parent="android:style/Theme.Dialog">
        <item name="android:windowBackground">@drawable/filled_box</item>
        <item name="android:windowNoTitle">true</item>

filled_box.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#ffffffff"/>
    <stroke android:width="3dp" color="#ffff8080"/>
    <corners android:radius="30dp" />
    <padding android:left="10dp" android:top="10dp"
        android:right="10dp" android:bottom="10dp" />
</shape>

How can I implement a similar result by extending the Dialog or AlertDialog?

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撑一把青伞 2024-08-23 10:32:39

在扩展 Dialog 的类的构造函数中，调用 super(context, R.style.CustomDialog); 我已经多次这样做来创建具有特定主题的自定义对话框。

但是，如果主题是您想要更改的对话框的唯一内容，您可以尝试仅实例化 Dialog 类的实例并向其传递主题 ID，如 Dialogdialog = new Dialog(context, R.style. CustomDialog);

扩展 Dialog 的示例：

public class MyDialog extends Dialog
{
    public MyDialog(final Context context)
    {
        // Set your theme here
        super(context, R.style.MyDialogTheme);

        // This is the layout XML file that describes your Dialog layout
        this.setContentView(R.layout.myDialogLayout);  
    }
}

您将添加到此类的其余代码将与您在 Activity 类中编写的代码非常相似。

In the constructor of your class that extends Dialog call super(context, R.style.CustomDialog); I've done this many times to create custom dialogs with specific themes.

However if the theme is the only thing about the Dialog that you want to change, you could try just instantiating an instance of the Dialog class and pass it the theme ID like Dialog dialog = new Dialog(context, R.style.CustomDialog);

An example of extending Dialog:

public class MyDialog extends Dialog
{
    public MyDialog(final Context context)
    {
        // Set your theme here
        super(context, R.style.MyDialogTheme);

        // This is the layout XML file that describes your Dialog layout
        this.setContentView(R.layout.myDialogLayout);  
    }
}

The rest of the code you will add to this class is going to be pretty much exactly like what you would write in an Activity class.

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