AlertDialog 按钮不起作用，也不会关闭

Question

我有这个 AlertDialog 应该是两个玩家之间的决斗。它显示了一张决斗的图像，三秒钟后，多亏了一个计时器，它显示了一个 "BANG" 图像。当 "BANG" 图像出现时，玩家必须按下 "BANG" 按钮，溃烂的玩家获胜。我的问题是按钮上的侦听器不起作用，我无法关闭 alertDialog。这是代码

package com.example.root.gbu;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.SystemClock;
import android.widget.ImageView;

public class DuelFrame {

private Context context;
private long startTime;
private long endTime;
private boolean timeToShot=false;
private ImageView image;
private AlertDialog alertDialog;

public DuelFrame(String enemy, Context context){
        this.context = context;
        AlertDialog.Builder builder = new AlertDialog.Builder(context);
        builder.setTitle("Duel against " + enemy);
        image = new ImageView(context);
        image.setImageResource(R.drawable.duel_start);
        builder.setView(image);
        builder.setNegativeButton("BANG",
                new DialogInterface.OnClickListener()
                {
                    public void onClick(DialogInterface dialog, int id)
                    {
                        System.out.println("********************BANG PREMUTO*************************");
                        if(timeToShot) {
                            endTime = SystemClock.elapsedRealtimeNanos();
                            ConnectionStream.getOut().println("TIME:" + String.valueOf(endTime - startTime));
                        }
                        else
                            ConnectionStream.getOut().println("TIME:LOSE");
                    }
                });
        alertDialog = builder.create();
    }

    public void start(){
        ((Activity)context).runOnUiThread(new Runnable(){//mostro la finestra
            @Override
            public void run(){
                alertDialog.show();
            }
        });
        new java.util.Timer().schedule(//timer per cambiare l'immagine
                new java.util.TimerTask() {
                    @Override
                    public void run() {
                        ((Activity)context).runOnUiThread(new Runnable(){
                            @Override
                            public void run(){
                                image.getLayoutParams().height = image.getHeight();
                                image.getLayoutParams().width = image.getWidth();
                                image.setImageResource(R.drawable.bang);
                                startTime = SystemClock.elapsedRealtimeNanos();
                                timeToShot = true;
                            }
                        });
                    }
                }, 3000);
    }

    public void cancel(){
        ((Activity)context).runOnUiThread(new Runnable(){
            @Override
            public void run(){
                alertDialog.dismiss();
            }
        });
    }
}

所以我需要修复 onClickListener 和 cancel() 函数

Answer 1

使用这个警告框。它对我有用

AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(SettingActivity.this);
                alertDialogBuilder.setMessage("Message");

                alertDialogBuilder.setPositiveButton("yes", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface arg0, int arg1) {
                        //Code
                        dialog.cancel();
                    }
                });

                alertDialogBuilder.setNegativeButton("No", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.cancel();
                    }
                });

                AlertDialog alertDialog = alertDialogBuilder.create();
                alertDialog.show();

Answer 2

您需要致电 showDialog(int)方法。然后覆盖该方法 onCreateDialog(int) 在此创建对话框并设置正负按钮，然后它将起作用。

尽管这种方式已被弃用。你现在应该使用片段。不过你还是可以试试看！
检查此 link：https://developer.android.com/guide/topics/ui/dialogs.html

AlertDialog 按钮不起作用，也不会关闭

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