The subject kinda says it all.. I'm requesting a PIN code from the user, if they enter it, click the OK Positive Button and the PIN is incorrect I want to display a Toast but keep the dialog open. At the moment it closes automatically.. Sure this is very trivial thing to correct but can't find the answer yet.
Thanks..
You do not need to create a custom class. You can register a View.OnClickListener for the AlertDialog. This listener will not dismiss the AlertDialog. The trick here is that you need to register the listener after the dialog has been shown, but it can neatly be done inside an OnShowListener. You can use an accessory boolean variable to check if this has already been done so that it will only be done once:
/*
* Prepare the alert with a Builder.
*/
AlertDialog.Builder b = new AlertDialog.Builder(this);
b.setNegativeButton("Button", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {}
});
this.alert = b.create();
/*
* Add an OnShowListener to change the OnClickListener on the
* first time the alert is shown. Calling getButton() before
* the alert is shown will return null. Then use a regular
* View.OnClickListener for the button, which will not
* dismiss the AlertDialog after it has been called.
*/
this.alertReady = false;
alert.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialog) {
if (alertReady == false) {
Button button = alert.getButton(DialogInterface.BUTTON_NEGATIVE);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//do something
}
});
alertReady = true;
}
}
});
Part of this solution was provided by http://groups.google.com/group/android-developers/browse_thread/thread/fb56c8721b850124#
Build a custom dialog with a EditText with the attribute android:password="true" a button, then manually set onClick listener the button, and explicitly choose what to do in it.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:minWidth="180dip"
android:digits="1234567890"
android:maxLength="4"
android:password="true"/>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/Accept"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Accept"/>
</LinearLayout>
</LinearLayout>
Then when you want it to pop up:
final Dialog dialog = new Dialog(RealizarPago.this);
dialog.setContentView(R.layout.custom_dialog);
dialog.setTitle("PIN number:");
dialog.setCancelable(true);
Button button = (Button) dialog.findViewById(R.id.Accept);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(password_wrong){
// showToast
} else{
dialog.dismiss();
// other stuff to do
}
}
});
dialog.show();
You can set an OnClickListener as follows to keep the dialog open:
public class MyDialog extends AlertDialog {
public MyDialog(Context context) {
super(context);
setMessage("Hello");
setButton(AlertDialog.BUTTON_POSITIVE, "Ok", (new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// this will never be called
}
});
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (ok) {
// do something
dismiss();
} else {
Toast.makeText(getContext(), "when you see this message, the dialog should stay open", Toast.LENGTH_SHORT).show();
}
}
});
}
}
You can just continue using the dialog you already have, just put an if clause in the onClick() saying
if(pin_check_method){ //pin_check_method should be a boolean returned method
//close the Dialog, then continue
}
else{
//dont put the dialog.dismiss() in here, put instead
Toast.makeText(getApplicationContext(),"Invalid pin, please try again",Toast.LENGTH_LONG).show();
}
Now, to use this code, simply invoke text.setText(""); and put in the text you want here common error is that when you type in:
TextView text = (TextView) findViewById(R.id.dialog);
you miss that it needs to actually be
dialog.findViewById
and this is regardless of what the name of the dialog is, in my example it just happens to be the same name.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout_root"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView android:id="@+id/text"
android:layout_height="wrap_content"
android:textColor="#FFF"
android:layout_centerHorizontal="true"
android:layout_width="wrap_content"/>
<Button android:text="Continue"
android:id="@+id/Button01"
android:layout_width="fill_parent"
android:layout_height="wrap_content" android:layout_below="@+id/text">
</Button>
</RelativeLayout>
Try this:
final AlertDialog alertDialog = new AlertDialog.Builder(context)
.setView(v)
.setTitle(R.string.my_title)
.setPositiveButton(android.R.string.ok, null) //Set to null. We override the onclick
.setNegativeButton(android.R.string.cancel, null)
.create();
alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialog) {
Button b = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
b.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// TODO Do something
}
});
}
});
alertDialog.show();
Source: Prevent Alertdialog from closing after button click
Hope This Helps! Good Luck!
Same problem for me in a FragmentDialog. Here's my criminal/elegant solution: Remove all buttons from the dialog (positive,negative,neutral). Add your buttons from the xml.eg.:
<LinearLayout
android:layout_width="match_parent"
android:orientation="horizontal"
android:layout_height="wrap_content">
<Button
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:id="@+id/button_cancel"
style="@style/Widget.AppCompat.Button.Borderless.Colored"
android:text="@android:string/cancel"
android:layout_gravity="left"
/>
<Button
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:id="@+id/button_ok"
style="@style/Widget.AppCompat.Button.Borderless.Colored"
android:text="@android:string/ok"
android:layout_gravity="right"
/>
</LinearLayout>
And then in your code handle it with:
view.findViewById(R.id.button_ok).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view2) {
if (wannaClose)
dismiss();
else
//do stuff without closing!
}
});
where view is the view assigned to the dialog!
