Android的 - 为什么不对话框关闭后dialog.dismiss（）

问题描述

我有一点奇怪的问题。当活动开始，我将展示一个对话框说，一些项目正在装载这样的：

 对话对话框;@覆盖
公共无效的onCreate（捆绑savedInstanceState）
{
    super.onCreate（savedInstanceState）;
    的setContentView（R.layout.topic_edit）;    对话框=新的对话框（本）;    dialog.setContentView（R.layout.please_wait）;
    dialog.setTitle（加载评论）;    TextView的文本=（TextView的）dialog.findViewById（R.id.please_wait_text）;
    text.setText（请稍候，评论加载...）;
    dialog.show（）;
 

我声明类声明之前对话的对话权，然后每当我尝试用来关闭它dialog.dismiss（）; 不会关闭

下面是please_wait.xml

 ＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT;的RelativeLayout的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
    机器人：layout_width =FILL_PARENT
    机器人：layout_height =FILL_PARENT＆GT;＆LT;的TextView
    机器人：ID =@ + ID / please_wait_text
    机器人：layout_width =WRAP_CONTENT
    机器人：layout_height =WRAP_CONTENT/＆GT;
＆LT; / RelativeLayout的＆GT;
 

会有人知道为什么对话框不会关闭在 dialog.dismiss（） ...我尝试在调用返回后，一个异步调用的解雇。但我没有检查，并执行行 dialog.dismiss（），只是出于某种原因不关闭对话框。

这是我尝试关闭该对话框：

  @覆盖
保护无效onPostExecute（字符串结果）
{
    dialog.dismiss（）;
}
 

解决方案

请确保当你执行dialog.dismiss，它是指向你所创建的对话框。你有对话作为一个类变量，有一个高的机会，它被解雇的到来时分配另一个对话框。我有这一个，原来该对话框中的变量在解雇时不再指着我居然对话框。

把一个破发点，看是否在创建/执行对话框变量还是一样可能会帮助

I have a bit of a strange problem. When an activity starts, I show a dialog saying that some items are loading like this:

Dialog dialog;

@Override
public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);        
    setContentView(R.layout.topic_edit);

    dialog = new Dialog (this);

    dialog.setContentView(R.layout.please_wait);
    dialog.setTitle("Loading The Comment.");

    TextView text = (TextView) dialog.findViewById(R.id.please_wait_text);
    text.setText("Please wait while the comment loads...");
    dialog.show();

I declare Dialog dialog right before the class declaration, and then whenever I try to dismiss it with dialog.dismiss(); it doesn't close.

Here is the please_wait.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

<TextView
    android:id="@+id/please_wait_text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"/>
</RelativeLayout>

Would someone know why the dialog does not close on dialog.dismiss()... I try the dismiss in an async call after the call returns. But I did check, and the line dialog.dismiss() is executed, just for some reason does not close the dialog.

This is how I try to dismiss the dialog:

@Override
protected void onPostExecute(String result) 
{
    dialog.dismiss();
} 

解决方案

Make sure that when you are executing dialog.dismiss that it is pointing to the dialog you created. You have dialog as a class variable and there is a high chance it was assigned another dialog by the time of dismissal come. I had this one and turned out that dialog variable at dismiss time was no longer pointing to my actually dialog.

Putting a break point and seeing if the dialog variable upon creation/execution is still the same will probably help

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