AlertDialog背景活动 [英] AlertDialog background activity

问题描述

我有，因为我想让它显示正确的警告对话框。问题是，当我从任何活动触发警报，它会打开这似乎是一个空白的布局，然后打开空白布局内的警告对话框。我希望我的提醒对话框中的用户是时候触发它的活动开启。这是我的code：

I have an alert dialog that displays correctly as I intend it to. The problem is that when I trigger the alert from any activity, it opens what appears to be a blank layout then opens the alert dialog box inside the blank layout. I want my alert dialog box to open in the activity that the user is in when they trigger it. This is my code:

AlertDialog dialog = new AlertDialog.Builder(this)
    .setCancelable(false)
    .setView(getLayoutInflater().inflate(R.layout.activity_about_t2m, null))
    .create();  
    dialog.setTitle("About T2M");
    dialog.show();

我认为问题可能出在第二个说法，但我怎么连检测当前的活动？

I thought that the problem may be the second argument but how do I even detect the current activity?

推荐答案

试试这个： -

要建立一个AlertDialog：

To build an AlertDialog:

// 1. Instantiate an AlertDialog.Builder with its constructor
 AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

// 2. Chain together various setter methods to set the dialog characteristics
 builder.setMessage(R.string.dialog_message)
       .setTitle(R.string.dialog_title);

// 3. Get the AlertDialog from create()
 AlertDialog dialog = builder.create();

您也可以参考 http://developer.android.com /guide/topics/ui/dialogs.html#DialogFragment 进一步的参考。

You can also refer the http://developer.android.com/guide/topics/ui/dialogs.html#DialogFragment for further reference.

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