Question

我有和短信应用程序，当我收到短信时，会创建一个对话框来显示消息，并在通知栏中创建通知。我的问题是，当我点击通知时，它会启动我的活动，并在原始文件的顶部创建一个新对话框，而不是仅仅重新聚焦已经创建的对话框。

   NotificationManager manger = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
   Notification notification = new Notification(R.drawable.sms,smsBody, System.currentTimeMillis());

   Intent notificationIntent = new Intent(this, SendSMSActivity.class);
   PendingIntent contentIntent = 
           PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_ONE_SHOT );

   notification.setLatestEventInfo(this, ContactName,smsBody,contentIntent);
   notification.flags = Notification.FLAG_AUTO_CANCEL;
   //notification.sound = Uri.parse("file:///sdcard/notification/ringer.mp3");

   notification.defaults = notification.DEFAULT_SOUND | notification.DEFAULT_VIBRATE;
   manger.notify(1, notification);

我的活动代码

public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);

        //wakeup screen
        PowerManager pm = (PowerManager) getApplicationContext().getSystemService(Context.POWER_SERVICE);
        WakeLock wakeLock = pm.newWakeLock((PowerManager.SCREEN_BRIGHT_WAKE_LOCK | PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP), "TAG");
        wakeLock.acquire();

        final String sender = getIntent().getStringExtra("PhoneNumber");
        final String body = getIntent().getStringExtra("smsBody");
        final String contactId = getIntent().getStringExtra("contactId");
        final String SenderName = getIntent().getStringExtra("SenderName");


        new ContactNameAsyncTask().execute();//this start the create dialog

这是我的对话框代码

private void ShowMessage（）{

   NotificationManager manger = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
   Notification notification = new Notification(R.drawable.sms,smsBody, System.currentTimeMillis());

   Intent notificationIntent = new Intent(this, SendSMSActivity.class);
   PendingIntent contentIntent = 
           PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_ONE_SHOT );

   notificationIntent.putExtra("NotificationMessage", "focused");
   notificationIntent.setData((Uri.parse("foobar://"+SystemClock.elapsedRealtime())));

   notification.setLatestEventInfo(this, ContactName,smsBody,contentIntent);
   notification.flags = Notification.FLAG_AUTO_CANCEL;
   //notification.sound = Uri.parse("file:///sdcard/notification/ringer.mp3");

   notification.defaults = notification.DEFAULT_SOUND | notification.DEFAULT_VIBRATE;
   manger.notify(1, notification);

    final Dialog dialog = new Dialog(this);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(R.layout.custom);


    try {
        TextView text = (TextView) dialog.findViewById(R.id.text);
        text.setMovementMethod(ScrollingMovementMethod.getInstance());
        text.setText(smsBody);

        TextView stext = (TextView) dialog.findViewById(R.id.sender);
        stext.setText(ContactName);
    }catch(NumberFormatException nfe) {
        TextView text = (TextView) dialog.findViewById(R.id.text);
        text.setMovementMethod(ScrollingMovementMethod.getInstance());
        text.setText("message not found check your inbox");

        TextView stext = (TextView) dialog.findViewById(R.id.sender);
        stext.setText("unknown");
    } 


    ImageView image = (ImageView) dialog.findViewById(R.id.image);
    image.setPadding(2, 2, 2, 2);
    image.setBackgroundColor(Color.GRAY);

    //get contact photo
    try {

        image.setImageURI(ContactPicUri);
    } catch(NumberFormatException nfe) {
        image.setImageResource(R.drawable.sender);
        //Toast.makeText(context,"Contact image not found "+ nfe,Toast.LENGTH_LONG).show();
    } 

    //end get contact photo
    //button1
    Button dialogButtonReply = (Button) dialog.findViewById(R.id.dialogButtonReply);
    dialogButtonReply.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {
             NotificationManager manger = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            manger.cancel(1);
                smsReply(PhoneNumber, smsBody);
                 goHome();
            }
    });
    //button1 end

    Button dialogButtonClose = (Button) dialog.findViewById(R.id.dialogButtonClose);
    dialogButtonClose.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
             NotificationManager manger = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            manger.cancel(1);
            //markMessageRead(context,PhoneNumber,smsBody);
            goHome();

        }
    });

    Button dialogButtonQuickReply = (Button) dialog.findViewById(R.id.dialogButtonQuickReply);
    dialogButtonQuickReply.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
             NotificationManager manger = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            manger.cancel(1);
            QuickReply();

        }
    });
    dialog.show();

}

Answer 1

根据Android docs，您应该避免直接使用Dialog。因此，我会指向DialogFragment。但代码很简单。

FragmentTransaction ft = getFragmentManager().beginTransaction();
Fragment prev = getFragmentManager().findFragmentByTag("dialog");
if (prev != null) {
    ft.remove(prev);
}
ft.addToBackStack(null);

// Create and show the dialog.
DialogFragment newFragment = MyDialogFragment.newInstance(mStackLevel);
newFragment.show(ft, "dialog");

如果你看一下这个链接，你会看到当你show()片段时，你在标签中传递它，在这种情况下称它为dialog。因此，这可以确保没有其他对话框显示，这意味着它不会在原始对话框上显示另一个对话框。当然，你必须扩展DialogFragment类来制作你的自定义版本，但它不是那么糟糕：）

显示通知单击时的原始对话框

1 个答案: