Question

我在这个类文件中构建了一个AlertDialog，对话框正常，但是当执行单击时，这些方法似乎没有调用。我究竟做错了什么？谢谢你的帮助！

//AlertView Builder
    final AlertDialog.Builder builder;
    builder = new AlertDialog.Builder(this);
    builder.setTitle(" ");
    builder.setIcon(R.drawable.banner);
    builder.setMessage("Share this picture using any of the below!");

    builder.setPositiveButton("Email",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                  System.out.print("Emailing...");
                }
            });

    builder.setNeutralButton("Facebook",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    System.out.print("Facebooking...");
                }
            });

    builder.setNegativeButton("Twitter",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    System.out.print("Tweeting...");
                }
            });

Answer 1

你有什么期望呢？你现在没有那些街区的代码吗？

Android默认情况下不使用System.out.print(); - 使用日志：

Log.d(getClass().getName(),"Facebooking...");

Answer 2

请尝试使用以下代码setNeutralButton，setPositiveButton，setNegativeButton不适用于特定API。

//AlertView Builder
    final AlertDialog.Builder builder;
    builder = new AlertDialog.Builder(this);
    builder.setTitle(" ");
    builder.setIcon(R.drawable.banner);
    builder.setMessage("Share this picture using any of the below!");

    builder.setButton1("Email",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                  System.out.print("Emailing...");
                }
            });

    builder.setButton2("Facebook",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    System.out.print("Facebooking...");
                }
            });

    builder.setButton3("Twitter",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    System.out.print("Tweeting...");
                }
            });

希望它有所帮助...

Android Dialog OnClick方法不起作用？

2 个答案: