Android progress dialog while waiting to dialog show up

Question

In my android application, dialog's showing up takes a time. At that time I want to show progress dialog. I learned that the progress dialog should be executed in thread but when I use a thread it gives an error.

I created progress dialog in oncreate method and tried to show in my button's onclick method.

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    context = getApplicationContext();

    mProgressDialog = new ProgressDialog(context, R.style.StyledDialog);
    mProgressDialog.setCanceledOnTouchOutside(false);
    Drawable drawable = context.getResources().getDrawable(R.drawable.progress_dialog);
    mProgressDialog.setProgressDrawable(drawable);
}

Following code is my button's onclick method which is defined in xml file like : android:onClick="refList"

public void refList(View v) {


    Thread t = new Thread(new Runnable() {
        @Override
        public void run() {

            mProgressDialog.show();

        }
    });
    t.start();

    if(!refListDialog.isShowing()) {
        refListDialog.show();
        t.interrupt();

    }

}

This is the exception:

 FATAL EXCEPTION: Thread-27305 java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
        at android.os.Handler.<init>(Handler.java:121)
        at android.view.ViewRootImpl$ViewRootHandler.<init>(ViewRootImpl.java:3052)
        at android.view.ViewRootImpl.<init>(ViewRootImpl.java:3321)
        at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:294)
        at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:226)
        at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:151)
        at android.app.Dialog.show(Dialog.java:277)
        at gcm.b4deploy.com.hesapozeti.MainActivity$2.run(MainActivity.java:196)
        at java.lang.Thread.run(Thread.java:856)

I am really stuck and waiting ideas. Thanks in advance.

i dont know where you heard this but progress dialogs should def not be called in a thread — Tomer Shemesh, May 24 '16 at 16:01

score 0 · Answer 1 · answered May 24 '16 at 16:18

0

Try like this

        runOnUiThread(new Runnable() {
        public void run() {
        mProgressDialog.show();
        }
    });

answered May 24 '16 at 16:18

akhil Rao

1,169
7
17

Still getting error: FATAL EXCEPTION: main java.lang.IllegalStateException: Could not execute method for android:onClick at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.. – Hilal May 25 '16 at 07:03

RoCkDevstack · Accepted Answer · 2016-05-25T07:59:05.343

0

I really don't get the idea why you put the progressDialog inside a thread.

yourProgress = new ProgressDialog(this);
yourProgress.setTitle("Title");
yourProgress.setMessage("wait for a while"); yourProgress.getProcess();
yourProgress.show();

Put this code first in your function in the onClick method. It will execute sequentially.And you can make conditional statement, and if done, call yourProgress.dismiss();

- add your statement above the progressDialog.setTitle. I suggest you declare the progress dialog outside this method, so that you can dismiss that one in the other method which return true. Just remove those runnable thing.

edited May 25 '16 at 07:59

answered May 24 '16 at 16:42

RoCkDevstack

3,517
7
34
56

When I did as your said it gives an error: FATAL EXCEPTION: main java.lang.IllegalStateException: Could not execute method for android:onClick at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener... – Hilal May 25 '16 at 06:47
If (statement) { yourProgressDialog... Then your statement }else{} – RoCkDevstack May 25 '16 at 07:47
Thanks, the problem is that I used getApplicationContext() instead of MainActivity.this. No need to use thread. – Hilal May 25 '16 at 09:02
Do you remove the runnable? The thread you just created? getApplicationContext() is suitable for fragments. In activity user the CLASS_NAME.this . (Glad to help even though it lack more instruction) – RoCkDevstack May 25 '16 at 09:13
I have already remove it. But it was still getting an error. Then I create onclick method like yours (not defined in xml by defining .setOnClickListener()....) then the error is changed. Then I googled that error and used again stackoverflow (http://stackoverflow.com/questions/5796611/dialog-throwing-unable-to-add-window-token-null-is-not-for-an-application-wi) then it solved. Thanks again. – Hilal May 25 '16 at 10:28

Android progress dialog while waiting to dialog show up

2 Answers2