Unable to add window - token android.os.BinderProxy is not valid; is your activity running?

Question

I try to connect to Twitter using twitter4j. But it shows the error as title said.

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);

    twitterConsumerKey = getIntent().getStringExtra(TWITTER_CONSUMER_KEY);
    twitterConsumerSecret = getIntent().getStringExtra(TWITTER_CONSUMER_SECRET);
    if(twitterConsumerKey == null || twitterConsumerSecret == null){
        Log.e(Constants.TAG, "ERROR: Consumer Key and Consumer Secret required!");
        Login.this.setResult(TWITTER_LOGIN_RESULT_CODE_FAILURE);
        Login.this.finish();
    }

    mProgressDialog = new ProgressDialog(this);
    mProgressDialog.setMessage("Please wait...");
    mProgressDialog.setCancelable(false);
    mProgressDialog.setCanceledOnTouchOutside(false);
    mProgressDialog.show();

    twitterLoginWebView = (WebView)findViewById(R.id.twitter_login_web_view);
    twitterLoginWebView.setWebViewClient( new WebViewClient()
    {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url)
        {
            if( url.contains(Constants.TWITTER_CALLBACK_URL))
            {
                Uri uri = Uri.parse(url);
                Login.this.saveAccessTokenAndFinish(uri);
                return true;
            }
            return false;
        }

        @Override
        public void onPageFinished(WebView view, String url) {
            // TODO Auto-generated method stub
            super.onPageFinished(view, url);
            if(mProgressDialog != null) mProgressDialog.dismiss();
        }

        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            // TODO Auto-generated method stub
            super.onPageStarted(view, url, favicon);

            if(mProgressDialog != null) mProgressDialog.show();
        }
    });

    Log.d(Constants.TAG, "ASK OAUTH");
    askOAuth();
}

Here is the LogCat:

FATAL EXCEPTION: main
android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@41f93f30 is not valid; is your activity running?
at android.view.ViewRootImpl.setView(ViewRootImpl.java:559)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:269)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
at android.app.Dialog.show(Dialog.java:281)
at com.moviecollection.Login$1.onPageStarted(Login.java:93)
at android.webkit.CallbackProxy.handleMessage(CallbackProxy.java:305)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5295)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
at dalvik.system.NativeStart.main(Native Method)

The error line is if(mProgressDialog != null) mProgressDialog.show();

I tried the way as Unable to add window — token android.os.BinderProxy is not valid; is your activity running? introduced. But it is too old for my Android version.

Enate

Please post the logcat and indicate which line causes the error. – Untune

Answer 1

I made the same mistake as you today,before you are gonna show dialog,write this code below:

    if(((Activity) context).isFinishing())
    {
       return;
    }

it works for me. Good luck~

Cincture

Answer 2

It made the same mistake for using swtAllertDialogBox. This code helps me to avoid crash

if(!((Activity) context ).isFinishing())
{
    swtDialogSucces();
}else{
    Toast.makeText(getApplicationContext(),"Successful", Toast.LENGTH_LONG).show();
}

Tavern

Answer 3

Use this condition.

if(mProgressDialog != null && mProgressDialog.isShowing()) 
 mProgressDialog.show();

There may be an easier way I can't think of but one way is to implement it yourself. On onResume() you set a member variable mIsRunning = true and on onPause() back to mIsRunning = false. Using this boolean you should know not to call alert.show() on your callback.

Hope this will help you.

Impanation

it won't solve his problem. He need to check if the activity is running or not – Horrocks