java - FirebaseNetworkException 无法转换为 com.google.firebase.auth.FirebaseAuthException

Question

存在 FirebaseAuthException 强制转换问题。在某些情况下，任务异常无法转换为 FirebaseAuthException。我该如何处理这种情况？我想尝试一下这个类型转换过程。如果成功，我将向用户显示错误及其详细信息。否则，如果它不成功，我只想显示错误。

   if(task.getException() != null){

    try {
        String errorCode = ((FirebaseAuthException) task.getException()).getErrorCode();

        switch(errorCode) {
            case "ERROR_EMAIL_ALREADY_IN_USE":
                Toast.makeText(LoginActivity.this, LoginActivity.this.getResources().getString(R.string.ERROR_EMAIL_ALREADY_IN_USE),
                        Toast.LENGTH_SHORT).show();
                stopIndicator();
                break;
            case "ERROR_INVALID_EMAIL":
                Toast.makeText(LoginActivity.this, LoginActivity.this.getResources().getString(R.string.ERROR_INVALID_EMAIL),
                        Toast.LENGTH_SHORT).show();
                stopIndicator();
                break;
            case "ERROR_WEAK_PASSWORD":
                Toast.makeText(LoginActivity.this, LoginActivity.this.getResources().getString(R.string.ERROR_WEAK_PASSWORD),
                        Toast.LENGTH_SHORT).show();
                stopIndicator();
                break;
            case "ERROR_CREDENTIAL_ALREADY_IN_USE":
                Toast.makeText(LoginActivity.this, "CREDENTIAL ALREADY IN USE",
                        Toast.LENGTH_SHORT).show();
                stopIndicator();
                break;
            default:
                Toast.makeText(LoginActivity.this, LoginActivity.this.getResources().getString(R.string.Error),
                        Toast.LENGTH_SHORT).show();
                stopIndicator();

        }
    }
    catch (WindowManager.BadTokenException e) {
        Toast.makeText(LoginActivity.this, LoginActivity.this.getResources().getString(R.string.Error),
                Toast.LENGTH_SHORT).show();
        stopIndicator();
    }

}else{
    Toast.makeText(LoginActivity.this, LoginActivity.this.getResources().getString(R.string.Error),
            Toast.LENGTH_SHORT).show();
    stopIndicator();
}

Answer 1

String errorCode;
    if(task.getException()).getErrorCode() instanceof  FirebaseAuthException){
        errorCode = ((FirebaseAuthException) task.getException()).getErrorCode();

        switch(errorCode) {
            case "ERROR_EMAIL_ALREADY_IN_USE":
                Toast.makeText(LoginActivity.this, LoginActivity.this.getResources().getString(R.string.ERROR_EMAIL_ALREADY_IN_USE),
                        Toast.LENGTH_SHORT).show();
                stopIndicator();
                break;
            case "ERROR_INVALID_EMAIL":
                Toast.makeText(LoginActivity.this, LoginActivity.this.getResources().getString(R.string.ERROR_INVALID_EMAIL),
                        Toast.LENGTH_SHORT).show();
                stopIndicator();
                break;
            case "ERROR_WEAK_PASSWORD":
                Toast.makeText(LoginActivity.this, LoginActivity.this.getResources().getString(R.string.ERROR_WEAK_PASSWORD),
                        Toast.LENGTH_SHORT).show();
                stopIndicator();
                break;
            case "ERROR_CREDENTIAL_ALREADY_IN_USE":
                Toast.makeText(LoginActivity.this, "CREDENTIAL ALREADY IN USE",
                        Toast.LENGTH_SHORT).show();
                stopIndicator();
                break;
            default:
                Toast.makeText(LoginActivity.this, LoginActivity.this.getResources().getString(R.string.Error),
                        Toast.LENGTH_SHORT).show();
                stopIndicator();

        }


    }else{
         errorCode="";
    }