[TinyTut] - Displaying a Messagebox

suharyadi · by **suharyadi** » Mon Mar 10, 2008 11:29 am

hi everyone
i have application that request openconnection, but if my server is off / nothing
my applicatio is like not responding, and alwasy show message wait or end activity
anyone can help me handle it

plusminus · by **plusminus** » Mon Mar 10, 2008 9:45 pm

Hello suharyadi,

Put it to a thread and interrupt it when you think it is time for a timeout.

Regards,
plusminus

saty_32016 · by **saty_32016** » Mon Mar 17, 2008 5:13 am

plusminus wrote:
[TinyTut] - Displaying a Messagebox

What you learn: You will learn how easy it is, to display a MessageBox (showAlert(...)).

Difficulty: 0 of 5

What it will look like:

Description
This has been a very common question, as in "normal" Java a MessageBox was displayed with code like:
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JOptionPane.showMessageDialog(...);

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in Android you can do almost the same with the following code:
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showAlert("A funny title", "MessageBoxes rule extremely!", "Hit Me!", false);

// Where the definition of the function is (simplest of 4 different):

showAlert(CharSequence title, CharSequence message, CharSequence buttonText, boolean cancelable)

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Regards,
plusminus

is it possible to have a popoup box with a facility to browse system folder's?
or can we populate total system folders here on emulator

Ventrix · by **Ventrix** » Tue Jul 01, 2008 10:31 am

I have this code:

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import android.app.Activity;
 
import android.os.Bundle;
 
import android.content.DialogInterface; 
 
import android.content.DialogInterface.OnClickListener; 
 
import android.content.Intent;
 
public class Testing extends Activity {
 
        /** Called when the activity is first created. */
 
        @Override
 
    public void onCreate(Bundle icicle) {
 
        super.onCreate(icicle);
 
        setContentView(R.layout.main);
 
        showAlert("A funny title",0, "MessageBoxes rule extremely!", "Hit Me!", new DialogInterface.OnClickListener(){
 
  [s]          @Override[/s]
 
            public void onClick(DialogInterface arg0, int arg1) {
 
                 setContentView(R.layout.main1);
 
            }
 
       }, false, null);
 
    }
 
}
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and I'm getting a "The method onClick(DialogInterface, int) of type new DialogInterface.OnClickListener(){} must override a superclass method" error.

EDIT The solution was simple, I had to remove the @Override line before the onClick method.

nono35 · by **nono35** » Mon Jul 21, 2008 4:50 pm

hi everyboy,

is it possible to drag this dialog ?
I have a MapActivity under this dialog and I want to move this dialog in order to click on the map and get a position that the dialog will receive...

Thanks for reply

mrdanger · by **mrdanger** » Mon Sep 08, 2008 10:24 am

hello everybody,

I was in the vacation for 1 1/2 month. Now i will work on my project, but the showAltert not working. Is this correct?

Gurbuh · by **Gurbuh** » Mon Sep 08, 2008 9:55 pm

I also tried to follow this tutorial. But showAlert() didn't work so I googled it and found out that in my version of the SDK (0.9 beta) showAlert is replaced by AlertDialog. So maybe the tutorial could be updated?

haden · by **haden** » Thu Sep 11, 2008 12:04 pm

Gurbuh wrote:I also tried to follow this tutorial. But showAlert() didn't work so I googled it and found out that in my version of the SDK (0.9 beta) showAlert is replaced by AlertDialog. So maybe the tutorial could be updated?

HI gurbuh, try this out.

showAlert("A funny title",1, "MessageBoxes rule extremely!", "Hit Me!", false);

there is an additional int variable.. not sure what its for.

plusminus · by **plusminus** » Thu Sep 11, 2008 2:22 pm

Gurbuh wrote:I also tried to follow this tutorial. But showAlert() didn't work so I googled it and found out that in my version of the SDK (0.9 beta) showAlert is replaced by AlertDialog. So maybe the tutorial could be updated?

Hello Gurbuh,

you should be using [font=Courier New]android.app.AlertDialog.Builder[/font] since 0.9 it works like this (syntax may be wrong):

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new android.app.AlertDialog.Builder().setTitle("MyTitle").setMessage("").setIcon(R.drawable.icon).create().show();
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Regards,
plusminus

Gurbuh · by **Gurbuh** » Thu Sep 11, 2008 3:25 pm

So they made it less simple

Thanks for the heads up!

Artur79 · by **Artur79** » Sun Sep 28, 2008 1:19 pm

I've found nice tutorial how to show dialogs with AlertDialog.Builder

http://www.maximyudin.com/2008/02/25/an ... lications/

Here's an example how to display message with a button to close alert.

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new AlertDialog.Builder(MainActivity.this)
 
        .setTitle("Simple Alert Dialog")
 
        .setMessage("Are you sure that you want to quit?")
 
        .setNegativeButton("Yes", new DialogInterface.OnClickListener() {
 
                public void onClick(DialogInterface dialog, int whichButton) {
 
                }
 
        })
 
.show();
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quite combined, is there simplier way ?

plusminus · by **plusminus** » Mon Sep 29, 2008 3:58 am

Hello Artur,

I think this is pretty easy.

What would you simplify :?:

Regards,
plusminus

EwanG · by **EwanG** » Wed Oct 08, 2008 12:59 am

OK, I've been "playing" with this for some time, and I'm not getting anywhere. I don't get a compile error, but when I get to where I do the dialog, the program crashes.

Basically I've followed one of the Google examples and have a thread class and a view class. So I get to:

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        public void setState(int mode, CharSequence message) {
 
            synchronized (mSurfaceHolder) {
 
                mMode = mode;
 
        .... {lines removed for decision tree} ....
 
                    else if (mMode == STATE_WIN){
 
                    // We beat a level, so now it's time to add to the win counter,
 
                    // move to the next level
 
                        str = res.getString(R.string.mode_win_prefix)
 
                                + mWinsInARow + " "
 
                                + res.getString(R.string.mode_win_suffix);
 
                        mMyLevel ++;
 
                        switch(mMyLevel) {
 
                        case 1:
 
                            mBackgroundImage = BitmapFactory.decodeResource(res,
 
                                    R.drawable.level2);
 
                            mBackgroundImage = Bitmap.createScaledBitmap(
 
                                    mBackgroundImage, mCanvasWidth, mCanvasHeight, true);
 
                            break;
 
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and I'd like to add a dialog or screen that "sets up" the scenario for the next level. If I try to put the dialog here, the app crashes. Without the dialog it runs fine. I've made sure I have all the supporting libraries, and I'm not getting any warnings or errors during the build, so I'm not sure what I'm doing wrong.

Maybe something changed in the 1.x SDK?

EwanG · by **EwanG** » Mon Oct 13, 2008 9:38 pm

Bump...

For the time being I've created another activity and then just switch views, but that seems like overkill for what I want. Any suggestions?

MrSnowflake · by **MrSnowflake** » Mon Oct 13, 2008 10:14 pm

It's a wild guess, but you probably can't make Dialogs from non-ui threads! So find a way to post the building of the dialog to the ui thread (the activity), for example using a Handler object.

[TinyTut] - Displaying a Messagebox

handle open connection with messagebox

Re: [TinyTut] - Displaying a Messagebox

tutorial how to use AlertDialog.Builder

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