问题
I'm getting the below error message from phones that are SDK version < 8. I just released this app on the android market and prior to release my test phones were a HTC Thunderbolt and the Droid X. Neither had this problem at all.
I'm getting this error report through Flurry. I'm not able to test this directly because I don't have a phone with SDK < 8 and for some reason I can't get my emulator to start a lower version than the default SDK set for an app.
java.lang.IllegalArgumentException, android.app.Activity.createDialog:880 - (Activity#onCreateDialog did not create a dialog for id 1)
Below is the onCreateDialog(int id) that i've implemented.
@Override
protected Dialog onCreateDialog(int id) {
super.onCreateDialog(id);
Dialog dialog = null;
switch(id){
case 1:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Enter Shipping %");
activeTextView = shippingPercent;
dialog.show();
dialog = null;
break;
case 2:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Enter Tax Rate");
activeTextView = taxPercent;
dialog.show();
dialog = null;
break;
case 3:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Enter Commission %");
activeTextView = commissionPercent;
dialog.show();
dialog = null;
break;
case 4:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Calculate Subtotal");
activeTextView = productSubtotal;
dialog.show();
dialog = null;
break;
case 5:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Additional Shipping");
activeTextView = addShipping;
dialog.show();
dialog = null;
break;
case 6:
dialog = new BackgroundOptionsDialog(this);
dialog.setTitle("Choose Background:");
dialog.show();
dialog = null;
break;
default:
dialog = null;
}
return dialog;
}
And below is how the Dialog is being dismissed.
private void registerListeners () {
enterTotal.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
calcLogic(EQUALS);
}catch(Exception ex){}
operatorChange = DONT_CHANGE;
activeTextView.setText(calcDialogDisplay.getText().toString());
try {
if ((Float.parseFloat(calcDialogDisplay.getText().toString())) < 0) {}
}catch(Exception ex) {
activeTextView.setText("0");
}
mathCalculations();
CustomCalcDialog.this.dismiss();
}
});
回答1:
Had the problem also and solved it with the following:
-Don't return a null Dialog in method: protected Dialog onCreateDialog(int id)
In Android 2.1 in Activity.java the error was raised on line 871.
private Dialog createDialog(Integer dialogId, Bundle state) {
869 final Dialog dialog = onCreateDialog(dialogId);
870 if (dialog == null) {
871 throw new IllegalArgumentException("Activity#onCreateDialog did "
872 + "not create a dialog for id " + dialogId);
873 }
874 dialog.dispatchOnCreate(state);
875 return dialog;
876 }
If you look in later Android there is a check for a null Dialog and it's handeld with a return. So here it works.
-Don't use Bundle (changed in API8):
protected Dialog onCreateDialog(int id, Bundle bundle);
use:
protected Dialog onCreateDialog(int id);
-I also used the following check (had a special case with a custom dialog):
if(Build.VERSION.SDK_INT <= Build.VERSION_CODES.ECLAIR_MR1) {
return dialog;
} else {
return null;
}
Maybe it helps someone...
回答2:
Ah, look at your code:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Enter Shipping %");
activeTextView = shippingPercent;
dialog.show();
dialog = null;
break;
You set dialog to null: that's why you are getting the error. Do this:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Enter Shipping %");
activeTextView = shippingPercent;
break;
回答3:
I believe the easiest way to deal with this pesky exception is to just catch it:
@Override
public void showDialog(int dialogId) {
try {
super.showDialog(dialogId);
} catch (IllegalArgumentException e) { /* Log it if you wish*/ }
}
That said, I don't think you're using onCreateDialog() as the API intended (which is why you were seeing the strange behavior), it should definitely return a dialog object most of the time.
回答4:
I ended up having to get rid of the dialog = null. I also had to move the switching between activeTextView from onCreateDialog(int id) to onPrepareDialog(int id, Dialog dialog).
Below is the updated code.
@Override
protected Dialog onCreateDialog(int id) {
super.onCreateDialog(id);
Dialog dialog = null;
switch(id){
case 1:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Enter Shipping %");
break;
case 2:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Enter Tax Rate");
break;
case 3:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Enter Commission %");
break;
case 4:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Calculate Subtotal");
break;
case 5:
dialog = new CustomCalcDialog(this);
dialog.setTitle("Additional Shipping");
break;
case 6:
dialog = new BackgroundOptionsDialog(this);
dialog.setTitle("Choose Background:");
break;
}
return dialog;
}
@Override
protected void onPrepareDialog(int id, Dialog dialog) {
super.onPrepareDialog(id, dialog);
switch(id){
case 1:
activeTextView = shippingPercent;
break;
case 2:
activeTextView = taxPercent;
break;
case 3:
activeTextView = commissionPercent;
break;
case 4:
activeTextView = productSubtotal;
break;
case 5:
activeTextView = addShipping;
break;
}
}
回答5:
It is because you are returning null from your onCreateDialog(int id) method (this method is deprecated).
Instead use this.
来源：https://stackoverflow.com/questions/6259644/android-java-lang-illegalargumentexception-erron-when-creating-dialog-on-2-1-a