显示AlertDialog如果满足某种条件

Question

首先，请忍受我，因为我是新手。

我想编写一个可以弹出对话框的应用程序

示例：

公共类Testmax {

       public void main(String[] args) {
          int i = 5;
          int j = 5;
          int sum = i + j;
                   if (sum == 10) {

                // alert dialog box will appear and show the message -  "Answer is 10"
               }

    }

感谢您的帮助。谢谢。

Answer 1

在满足您的病情时添加它：

AlertDialog alertDialog = new AlertDialog.Builder(this).create();
alertDialog.setTitle("Title");
alertDialog.setMessage("Message");
alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
  public void onClick(DialogInterface dialog, int which) {
  // TODO Add your code for the button here.   }
});
// Set the Icon for the Dialog
alertDialog.setIcon(R.drawable.icon);
alertDialog.show();

参考http://developer.android.com/reference/android/app/alertdialog.html。http://developer.android.com/guide/topics/ui/dialogs.html。

Answer 2

请尝试此代码....

弹出对话框的课程

if (condition) {
                showAlertDialog(Activityname.this, "Internet Connection",
                        "You have internet connection", true);
            } else {
                showAlertDialog(Activityname.this, "No Internet Connection",
                        "You don't have internet connection.", false);
            }

showdailog的方法声明

    public void showAlertDialog(Context context, String title, String message, Boolean status) {
    AlertDialog alertDialog = new AlertDialog.Builder(context).create();
    // Setting Dialog Title
    alertDialog.setTitle(title);
    // Setting Dialog Message
    alertDialog.setMessage(message);
    // Setting alert dialog icon
    alertDialog.setIcon((status) ? R.drawable.success : R.drawable.fail);
    // Setting OK Button
    alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
        }
    });
    // Showing Alert Message
    alertDialog.show();
}

}

Answer 3

public void main(String[] args) {
          int i = 5;
          int j = 5;
          int sum = i + j;
                   if (sum == 10) {
                   showAlertDialog(Activityname.this, "Internet Connection",
                    "You have internet connection", true);
                // alert dialog box will appear and show the message -  "Answer is 10"
               }
       public void showAlertDialog(Context context, String title, String message,   Boolean status) {
        AlertDialog alertDialog = new AlertDialog.Builder(context).create();
     // Setting Dialog Title
      alertDialog.setTitle(title);
    // Setting Dialog Message
    alertDialog.setMessage(message);
    // Setting alert dialog icon
    alertDialog.setIcon((status) ? R.drawable.success : R.drawable.fail);
    // Setting OK Button
   alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
      public void onClick(DialogInterface dialog, int which) {
       }
     });
   // Showing Alert Message
    alertDialog.show();

     }

Answer 4

执行此操作。如果您只想显示警报对话框。

public void main(String[] args) 
{
        int i = 5;
        int j = 5;
        int sum = i + j;
        if (sum == 10) {
            new AlertDialog.Builder(yourclass.this)
                    .setTitle("Your answer is")
                    .setMessage(i)
                    .setNeutralButton("ok", null)
                    .setIcon(android.R.drawable.stat_sys_warning).show();
        }
}