显示特定警报对话框的If语句

Question

当一个状态结束时，我有一个警报对话框要显示。此对话框显示分数和高分。当语句为true时，有没有办法显示特定的警报对话框？

 AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    builder.setMessage("Score: " + Score + " High Score: " + highScore)
            .setPositiveButton(R.string.returnString, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    Intent intent = new Intent(getActivity(), GameState.class);
                    startActivity(intent);
                }
            });
    return builder.create();

我在下面尝试了一下，但没有成功，只是导致应用程序崩溃。

     if(Score > highScore) {
        builder.setMessage("You have set a new high score: " + highScore)
                .setPositiveButton(R.string.returnString, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Intent intent = new Intent(getActivity(),GameState.class);
                        startActivity(intent);
                    }
                });

然后，else将包含第一组代码，仅显示分数和当前高分。

Answer 1

我认为这应该适用于您：

String message = "Score: " + Score + " High Score: " + highScore;
if(Score > highScore) {
    message = "You have set a new high score: " + highScore;
}
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage(message)
        .setPositiveButton(R.string.returnString, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Intent intent = new Intent(getActivity(), GameState.class);
                startActivity(intent);
            }
        });
return builder.create();

这将解决条件消息显示问题。然而，如果您将logcat输出添加到问题中，以便也可以识别任何其他错误（如果存在），那就太好了。