我使用ACRA报告应用程序崩溃。我得到了一个视图没有附加到窗口管理器错误消息,并认为我已经通过包装pDialog.dismiss()修复了它;在if语句中:

if (pDialog!=null) 
{
    if (pDialog.isShowing()) 
    {
        pDialog.dismiss();   
    }
}

它减少了我收到的未附加到窗口管理器崩溃的视图数量,但我仍然得到一些,我不确定如何解决它。

错误信息:

java.lang.IllegalArgumentException: View not attached to window manager
at android.view.WindowManagerGlobal.findViewLocked(WindowManagerGlobal.java:425)
at android.view.WindowManagerGlobal.removeView(WindowManagerGlobal.java:327)
at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:83)
at android.app.Dialog.dismissDialog(Dialog.java:330)
at android.app.Dialog.dismiss(Dialog.java:312)
at com.package.class$LoadAllProducts.onPostExecute(class.java:624)
at com.package.class$LoadAllProducts.onPostExecute(class.java:1)
at android.os.AsyncTask.finish(AsyncTask.java:631)
at android.os.AsyncTask.access$600(AsyncTask.java:177)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5419)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
at dalvik.system.NativeStart.main(Native Method)

代码片段:

class LoadAllProducts extends AsyncTask<String, String, String> 
{

    /**
     * Before starting background thread Show Progress Dialog
     * */
    @Override
    protected void onPreExecute() 
    {
        super.onPreExecute();
        pDialog = new ProgressDialog(CLASS.this);
        pDialog.setMessage("Loading. Please wait...");
        pDialog.setIndeterminate(false);
        pDialog.setCancelable(false);
        pDialog.show();
    }

    /**
     * getting All products from url
     * */
    protected String doInBackground(String... args) 
    {
        // Building Parameters
        doMoreStuff("internet");
        return null;
    }


    /**
     * After completing background task Dismiss the progress dialog
     * **/
    protected void onPostExecute(String file_url) 
    {
         // dismiss the dialog after getting all products
         if (pDialog!=null) 
         {
                if (pDialog.isShowing()) 
                {
                    pDialog.dismiss();   //This is line 624!    
                }
         }
         something(note);
    }
}

清单:

    <activity
        android:name="pagename.CLASS" 
        android:configChanges="keyboard|keyboardHidden|orientation|screenSize|screenLayout"            
        android:label="@string/name" >
    </activity>

为了阻止撞车,我错过了什么?


当前回答

覆盖onDestroy的活动和解散你的对话框,使其为空

protected void onDestroy ()
    {
        if(mProgressDialog != null)
            if(mProgressDialog.isShowing())
                mProgressDialog.dismiss();
        mProgressDialog= null;
    }

其他回答

最佳解决方案。检查第一个上下文是活动上下文还是应用程序上下文 如果活动上下文只检查活动是否完成,则调用dialog.show()或dialog.dismiss();

参见下面的示例代码…希望对大家有所帮助! 显示对话框

if (context instanceof Activity) {
   if (!((Activity) context).isFinishing())
     dialog.show();
}

把对话框

if (context instanceof Activity) {
       if (!((Activity) context).isFinishing())
         dialog.dismiss();
    }

如果你想添加更多的检查,那么使用&&条件添加dialog. isshows()或dialog !-null。

可能你全局初始化pDialog,然后删除它并在本地初始化你的视图或对话框。我有同样的问题,我已经这样做了,我的问题已经解决了。希望这对你有用。

检查所有者活动是否仍然存在:

if (dialog.getOwnerActivity() ==null || dialog.getOwnerActivity().isFinishing()) {
    dialog.dismiss();
}

上面的解决方案都不适合我,因为我使用自定义对话类,我不想覆盖停止/销毁方法在我所有的活动,更容易添加一个参数到我的类,并从实例发送它,这个解决方案适合我

class CustomLoadingClass(var activity: Activity?, var lifecycle: Lifecycle? = null) {

lateinit var dialog: Dialog

fun show(cancelable: Boolean = false, title: String? = null) {
    lifecycle?.let {
        val defaultLifecycleObserver = object : DefaultLifecycleObserver {
            override fun onCreate(owner: LifecycleOwner) {
                super.onCreate(owner)
                activity?.let { it ->
                    if (!it.isFinishing && !it.isDestroyed) {
                        dialog = Dialog(it, android.R.style.Theme_Translucent_NoTitleBar)
                        dialog.setContentView(it.layoutInflater.inflate(R.layout.full_screen_progress_bar,null)!!)
                        dialog.setCancelable(cancelable)
                        dialog.show()
                    }
                }
            }
            override fun onPause(owner: LifecycleOwner) {
                super.onPause(owner)
                dismiss()
            }

            override fun onStop(owner: LifecycleOwner) {
                super.onStop(owner)
                dismiss()
            }

            override fun onDestroy(owner: LifecycleOwner) {
                super.onDestroy(owner)
                dismiss()
            }
        }
        it.addObserver(defaultLifecycleObserver)
    }
}

fun dismiss() {
    activity?.let { it ->
         if (!it.isFinishing && !it.isDestroyed) 
           dialog.dismiss()
    }
  }
}

我使用这个简单的扩展函数来检查活动是否被销毁。

    protected fun Activity?.isNoMore(): Boolean {
        return this?.let {
            isFinishing || isDestroyed
        } ?: true
    }

在下面提到的活动中使用它。

if (!isNoMore()) {
//show your dialog. Also, make the null check for dialog object.
}