Question

我有一个AlertDialog，它有一个EditText来接受用户输入。它有一个“发布”按钮，通过Web服务发布用户输入。我希望用户单击“发布”按钮后立即关闭对话框。目前，仅当我在对话框外单击时，对话框才会解除。

这是我的代码： -

    AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setMessage("Post comment");


            final EditText input1 = new EditText(this);

            builder.setView(input1);


            builder.setPositiveButton("Post", new DialogInterface.OnClickListener()
            {
                public void onClick(DialogInterface dialog, int id) 
                {
                     postedComment = input1.getText().toString();
                     if(postedComment == null || postedComment=="")
                     {
                         Toast.makeText(getApplicationContext(), "Please enter your comment", Toast.LENGTH_SHORT).show();
                     }
                     else
                     {
                         dialog.dismiss();




                     String postCommentUrl  = EndPoints.PostCommentsURL;
                    try 
                    {
                        String commentResponse = new PostComment().execute(postCommentUrl).get();
                        String getRequestForComments = EndPoints.GetCommentsUrl+"?params;
                        String items = new FetchItems().execute(getRequestForComments).get();
                        ArrayList<HashMap<String, String>> updatedList = new GetList().execute(items).get();


                        itemsAdapter = (ListAdapter) new CommentsAdapter(Details.this, updatedList);
                        commentsList.invalidate();
                        commentsList.refreshDrawableState();
                        commentsList.setAdapter(itemsAdapter);



                        commentsList.post(new Runnable() 
                        {

                            @Override
                            public void run() 
                            {
                                // TODO Auto-generated method stub
                                commentsList.setSelection(itemsAdapter.getCount()-1);

                            }
                        });


                    } 
                    catch (InterruptedException e)
                    {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    } 
                    catch (ExecutionException e) 
                    {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                }
                }
            });
AlertDialog alert = builder.create();
            alert.setCanceledOnTouchOutside(false);

            alert.show();

Answer 1

试试这个..

在dialog.dismiss();

之前添加if condition

并改变这一点：

if(postedComment == null || postedComment=="")

到

if(postedComment == null || postedComment.equals(""))

字符串应与.equals()进行比较，因为==只比较两个引用

修改

AlertDialog.Builder builder2 = new AlertDialog.Builder(this); builder2.setTitle("Enter an item:"); final EditText input2 = new EditText(this); builder2.setView(input2); builder2.setPositiveButton("Add", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Log.v("asasas", "" + input2.getText().toString()); dialog.dismiss(); input2.setText(""); Intent intent = new Intent(MainActivity.this, NextActivity.class); startActivity(intent); } }); builder2.setNegativeButton("Stop", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { //dialog.cancel(); dialog.dismiss(); } }); builder2.show();

Answer 2

尝试以下代码：

public static void showInputTextDialog(final Context context, String title, String message, final ITextInputDialogCalback callback)
    {
        if(!NetworkUtility.isOnline(context))
        {
            Toast.makeText(context, "Please check your network connectivity.", Toast.LENGTH_LONG).show();
            return;
        }
        LayoutInflater layoutInflater = LayoutInflater.from(context);
        View promptView = layoutInflater.inflate(R.layout.text_input_dialog, null);
        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(context);
        alertDialogBuilder.setTitle(title);
        alertDialogBuilder.setView(promptView);
        ((TextView) promptView.findViewById(R.id.textViewTitle)).setText(message);

        final EditText input = (EditText) promptView.findViewById(R.id.userInput);
        alertDialogBuilder
                .setCancelable(false)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() 
                {
                    public void onClick(DialogInterface dialog, int id) 
                    {
                        if(input.getText().toString().length()>0)
                        {
                            callback.onClose(input.getText().toString(), true);
                            dialog.cancel();
                        }
                        else
                        {
                            Toast.makeText(context, "Please enter query.", Toast.LENGTH_LONG).show();
                            input.findFocus();
                        }
                    }
                })
                .setNegativeButton("Cancel",new DialogInterface.OnClickListener() 
                {
                    public void onClick(DialogInterface dialog, int id) 
                    {
                        callback.onClose(input.getText().toString(), false);
                        dialog.cancel();
                    }
                });
        AlertDialog alertD = alertDialogBuilder.create();
        alertD.show();
    }

回调界面：

public interface ITextInputDialogCalback 
{
    void onClose(String inputValue, boolean isSuccess);
}

在回调界面中，您将获得回调，以便您可以使用输入文本执行任何操作。

Answer 3

你需要使用它。

 if(postedComment.equalsIgnoreCase("")) {
      Toast.makeText(getApplicationContext(), "Please enter your comment", Toast.LENGTH_SHORT).show();
    }
    else {

       // Execute Post function here.

       dialog.dismiss();

    }

用户输入android后，用edittext关闭Alert对话框

3 个答案: