Activity 已泄露窗口

Question

在我的初始屏幕中，我做了它来检测是否启用了 wifi 或 3g。如果不是，则对话框屏幕会提示用户退出并打开其中一个。如果它打开，则代码将继续。我的 logcat 中不断收到关于我的活动有泄漏窗口的错误。我不知道如何解决这个问题。下面的代码和logcat。有什么想法吗？

这是我的代码：

//create alert dialog for wifi and 3g
connectionDialog = new AlertDialog.Builder(SplashMain.this).create();
Log.d(TAG, "dialog created");
connectionDialog.setTitle("Wifi or 3G not detected. Please enable either Wifi or 3G");
connectionDialog.setButton("Exit", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
            finish();
    }
});

wifiHandler = new Handler();
setContentView(R.layout.splashscreen);  //Make the splash screen load first
Thread splashScreenTimer = new Thread(){ //create a timer for the splash screen
    public void run(){      //create a run class
        Looper.prepare();   //prepare looper
        try{            //methods within the run class
            int screenTimer =0;
            //make it last 3 seconds - create a while loop
            while(screenTimer <3000){
                sleep(100); //100= 1/10th of a second
                screenTimer = screenTimer +100;
            }
            connectionState();  //check wifi stuff
            Log.d(TAG, "checked wifi state");
            if(mobile == true || wifi == true){
                Log.d(TAG, "wifi is true");
                connectionDialog.dismiss();
                startActivity (new Intent("ravebox.dev.sdr.CLEARSCREEN"));
                finish();
                Log.d(TAG, "started activity");
            }
            if(mobile == false || wifi == false){
                Log.d(TAG, "wifi is false");
                wifiHandler.post(new Runnable() {
                    @Override
                    public void run() {
                        Log.d(TAG, "show dialog");
                        connectionDialog.show();
                        Log.d(TAG, "show'd dialog");
                    }
                });
            }//add activity to the manifest
        } catch (InterruptedException e) {
            e.printStackTrace();
        }finally{
            //finish();
        }
    }
};
splashScreenTimer.start();

原木猫：

08-30 22:45:32.188: ERROR/WindowManager(334): Activity ravebox.dev.sdr.SplashMain has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@405377e0 that was originally added here
08-30 22:45:32.188: ERROR/WindowManager(334): android.view.WindowLeaked: Activity ravebox.dev.sdr.SplashMain has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@405377e0 that was originally added here
08-30 22:45:32.188: ERROR/WindowManager(334):     at android.view.ViewRoot.<init>(ViewRoot.java:258)
08-30 22:45:32.188: ERROR/WindowManager(334):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)
08-30 22:45:32.188: ERROR/WindowManager(334):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
08-30 22:45:32.188: ERROR/WindowManager(334):     at android.view.Window$LocalWindowManager.addView(Window.java:465)
08-30 22:45:32.188: ERROR/WindowManager(334):     at android.app.Dialog.show(Dialog.java:241)
08-30 22:45:32.188: ERROR/WindowManager(334):     at ravebox.dev.sdr.SplashMain$2$1.run(SplashMain.java:90)
08-30 22:45:32.188: ERROR/WindowManager(334):     at android.os.Handler.handleCallback(Handler.java:587)
08-30 22:45:32.188: ERROR/WindowManager(334):     at android.os.Handler.dispatchMessage(Handler.java:92)
08-30 22:45:32.188: ERROR/WindowManager(334):     at android.os.Looper.loop(Looper.java:123)
08-30 22:45:32.188: ERROR/WindowManager(334):     at android.app.ActivityThread.main(ActivityThread.java:3835)
08-30 22:45:32.188: ERROR/WindowManager(334):     at java.lang.reflect.Method.invokeNative(Native Method)
08-30 22:45:32.188: ERROR/WindowManager(334):     at java.lang.reflect.Method.invoke(Method.java:507)
08-30 22:45:32.188: ERROR/WindowManager(334):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
08-30 22:45:32.188: ERROR/WindowManager(334):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
08-30 22:45:32.188: ERROR/WindowManager(334):     at dalvik.system.NativeStart.main(Native Method)

Answer 1

这是一个说明为什么会出现此问题的答案：Activity has leaked window that was originally added

现在，如果你已经编写了这段代码

if(mobile == true || wifi == true){
      Log.d(TAG, "wifi is true");
      connectionDialog.dismiss();
      startActivity (new Intent("ravebox.dev.sdr.CLEARSCREEN"));
      finish();
      Log.d(TAG, "started activity");
}

在上面的代码中，在关闭 connectionDialog.dismiss(); 之前，您在哪里显示它。

在这段代码中，您通过connectionDialog.show(); 显示对话框，但关闭它的代码在哪里。

if(mobile == false || wifi == false){
      Log.d(TAG, "wifi is false");
      wifiHandler.post(new Runnable() {
      @Override
      public void run() {
         Log.d(TAG, "show dialog");
         connectionDialog.show();
         Log.d(TAG, "show'd dialog");
      }
});

所以，请为此找到解决方案，应该是这样的。

仅在开始时显示对话框，如果 wifi 已连接 cancel() 它并移动到下一个活动，如果未连接 cancel() 它一段时间后并给出未找到或未连接 wifi 的消息。

Answer 2

我的猜测是因为您正在更新线程中的 UI。特别是这段代码：

    if(mobile == true || wifi == true){
       Log.d(TAG, "wifi is true");
       connectionDialog.dismiss();
       startActivity (new Intent("ravebox.dev.sdr.CLEARSCREEN"));
       finish();
       Log.d(TAG, "started activity");
    }

作为替代方案，您可能希望使用 CountDownTimer 进行倒计时并在 onFinish() 方法中检查上述代码

Answer 3

解决方案一：
在完成您的活动之前关闭您的AlertDialog。

AlertDialog.dismiss();

解决方案二：
在AndroidManifest.xml 中为您的活动添加以下字段。

android:configChanges="orientation|keyboardHidden|navigation"

Answer 4

查找任何可能引发异常的代码
当“url”错误时，我得到了同样的异常，如下所示：

String url = String.format(SOAP_REGISTER_URL, serviceCenterAddress);
    HttpTransportSE androidHttpTransport = new HttpTransportSE(url);

只需设置它运行的正确网址