android-如何在应用程序中添加第三个按钮

我如何在我的应用程序中添加第三个按钮……我想将第三个按钮设置为“听” ….我已经检查了

.setNeutralButton

但这不起作用….怎么可能？

public class MessageViewPage extends Activity {

ScrollView sv;
String nickname,body;
private LinearLayout mainLayout;
final Context context = this;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.message_view_page);

    Bundle b = getIntent().getExtras();

    nickname= b.getString("nick");
    body=b.getString("body");

    System.out.println(nickname);
    System.out.println(body);

    mainLayout=(LinearLayout)findViewById(R.id.mainLayoutmess);

    mainLayout.setOnClickListener(new OnClickListener() {

        public void onClick(View arg0) {

            System.out.println("***************in on click************");

            AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
                    context);

                // set title
                alertDialogBuilder.setTitle("Access");

                // set dialog message
                alertDialogBuilder
                    .setMessage("What's next?")
                    .setCancelable(false)
                    .setPositiveButton("Reply",new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,int id) {

                            Intent i=new Intent(MessageViewPage.this,Reply.class);
                            startActivity(i);
                            finish();

                        }
                      })
                    .setNegativeButton("Cancel",new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,int id) {

                            dialog.cancel();

                        }
                    });


                    // create alert dialog
                    AlertDialog alertDialog = alertDialogBuilder.create();

                    // show it
                    alertDialog.show();



 }
 });



}



}

带有.setNeutralButton …….具有错误

没有.setNeutralButton ….没有错误

解决方法:

只需在setNegativeButton的OnClickListener .add之后删除分号(;),即可：

alertDialogBuilder
                    .setMessage("What's next?")
                    .setCancelable(false)
                    .setPositiveButton("Reply",new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,int id) {

                            Intent i=new Intent(MessageViewPage.this,Reply.class);
                            startActivity(i);
                            finish();

                        }
                      })
                    .setNegativeButton("Cancel",new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,int id) {

                            dialog.cancel();

                        }
                    }) // ; remove this semicolon here
 .setNeutralButton("Neutral",new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog,int id) {

                            dialog.cancel();

                        }
                    });

标签：android-alertdialog,button,android
来源： https://codeday.me/bug/20191101/1981226.html