Android Activity 作为对话框 [英] Android Activity as a dialog

问题描述

我有一个名为 whereActity 的活动，它也有子对话框.现在，我想将此活动显示为另一个活动的对话框.

I have an Activity named whereActity which has child dialogs as well. Now, I want to display this activity as a dialog for another activity.

我该怎么做?

推荐答案

要将活动作为对话框启动，我在 AndroidManifest.xml 中这样定义:

To start activity as dialog I defined it like this in AndroidManifest.xml:

<activity android:theme="@android:style/Theme.Dialog" />

在您的 activity 标签中使用此属性，以避免您的 Dialog 出现在最近使用的应用程序列表中

Use this property inside your activity tag to avoid that your Dialog appears in the recently used apps list

android:excludeFromRecents="true"

如果你想在用户点击对话框外时阻止你的对话框/活动被破坏:

If you want to stop your dialog / activity from being destroyed when the user clicks outside of the dialog:

在您的 Activity 中的 setContentView() 之后使用:

After setContentView() in your Activity use:

this.setFinishOnTouchOutside(false);

现在，当我调用 startActivity() 时，它显示为一个对话框，当用户按下后退按钮时会显示上一个活动.

Now when I call startActivity() it displays as a dialog, with the previous activity shown when the user presses the back button.

请注意，如果您使用 ActionBarActivity(或 AppCompat 主题)，则需要改用 @style/Theme.AppCompat.Dialog.

Note that if you are using ActionBarActivity (or AppCompat theme), you'll need to use @style/Theme.AppCompat.Dialog instead.

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