“对于变量buttonOK，void是无效类型".-尝试在单击按钮后关闭对话框 [英] "void is an invalid type for the variable buttonOK" - trying to close dialog after clicking button

问题描述

前一段时间，我做了一个简单的对话框.一切看起来都很好，但是在尝试关闭它之后我遇到了麻烦.错误是"void是变量buttonOK的无效类型" .

Some time ago i've made a simple dialog. Everything looks fine, but i'm meeting troubles after trying to close it. The error is "void is an invalid type for the variable buttonOK".

嗯，更好的是，我将提供指向屏幕快照的链接: http://i.imgur.com/tiAiI.png

Hmm, better i'll give a link to screenshot: http://i.imgur.com/tiAiI.png

对话框代码:

public void aboutApp(View view) {

    // custom dialog
                final Dialog dialog = new Dialog(context);
                dialog.setContentView(R.layout.aboutapp);
                dialog.setTitle("about  ");

                // set the custom dialog components - text, image and button
                TextView text = (TextView) dialog.findViewById(R.id.text);
                text.setText("bla bla bla ");
                ImageView image = (ImageView) dialog.findViewById(R.id.image);
                image.setImageResource(R.drawable.android);



                    @Override
                    public void buttonOK(View view) {
                        dialog.dismiss();
                    }


                dialog.show();
}

我应该怎么做才能使其正常工作?

What should I do to make it works?

PS我在 public void buttonOK(查看视图)处出错，在 view 处过错-重复的局部变量视图我应该重命名例如 view2 ?

PS I've got error at public void buttonOK(View view), extacly at view - Duplicate local variable view Should I rename it in, for example view2?

问题是(注意到 Ridcully )在另一个方法 aboutApp()中定义了方法 buttonOK()用Java完成(嗯，现在我知道了:D).

The problem was (as noticed Ridcully) that defined method buttonOK() in another method aboutApp(), what can't be done in java (uach, now I know it :D).

我只是替换了代码: @Overridepublic void buttonOK(查看视图){dialog.dismiss();}

收件人:

Button dialogButton = (Button) dialog.findViewById(R.id.dialogButtonOK);
                // if button is clicked, close the custom dialog
                dialogButton.setOnClickListener(new OnClickListener() {
                    public void onClick(View view2) {
                        dialog.dismiss();
                    }
                });

现在可以正常工作了，谢谢大家的帮助！

Now it works, thx all for help!

推荐答案

您已在另一个方法( aboutApp())中定义了一个方法( buttonOK()).在Java中这是不可能的.编译器试图弄清这一点，并假设 buttonOk 一定是一个变量，从而误导了错误消息.

You have defined a method (buttonOK()) within another method (aboutApp()). This is not possible in Java. The compiler tries to make sense of this and supposes somhow that buttonOk is meant as a variable -- thus the misleading error message.

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