AlertDialog按钮不起作用，不会关闭 [英] AlertDialog button doesn't work and it doesn't dismiss

问题描述

我有这个AlertDialog应该是两个球员之间的决斗。它显示一个决斗的形象，三秒钟后，由于一个计时器，它显示一个BANG的图像。当出现BANG图像时，播放器必须按BANG按钮，并且fester播放器获胜。我的问题是按钮上的监听器不起作用，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; 
私人ImageView图像; 
 private AlertDialog alertDialog; 
 
 public DuelFrame（String enemy，Context context）{
 this.context = context; 
 AlertDialog.Builder builder = new AlertDialog.Builder（context）; 
 builder.setTitle（对抗+敌人）; 
 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 -  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。 （）; 
 image.getLayoutParams（）。 b $ b 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

解决方案

您需要调用
showDialog（int）方法。
然后重写方法
onCreateDialog（int）里面创建对话框并设置正负按钮，然后它将工作。

尽管这种方式已被弃用。你现在应该使用碎片。但是您仍然可以尝试一下！

检查此链接： https://developer.android.com/guide/topics/ui/dialogs.html

I have this AlertDialog that should be a duel between two players. It shows an image of a duel and after three seconds, thanks to a timer, it shows a "BANG" image. When the "BANG" image appears, the player must press the "BANG" button and the fester player wins. My problem is that the listener on the button doesn't work and i can't dismiss the alertDialog. This is the code

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();
            }
        });
    }
}

So i need to fix the onClickListener and the cancel() function

解决方案

You need to call the showDialog(int)method. Then override the method onCreateDialog(int) inside this create the dialog and set the positive and negative buttons and then it will work.

Though this way is deprecated. You should use fragments now. But still you can give it a try!
Check this link: https://developer.android.com/guide/topics/ui/dialogs.html

这篇关于AlertDialog按钮不起作用，不会关闭的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！