如何取消alertDialog中的按钮？

Question

I know I could solve this with a header but I'd rather not have one. Is there anyway to access the properties of the cancel button?

My code and an image of the AlertView is below.

for(int i = 0; i < 10; i++)
            {
                AlertDialog.Builder alert = new AlertDialog.Builder(this);
                if(view.getId() == (getResources().getIdentifier("imageButton" + (i+1), "id", "en.deco.android.livehud")))
                {


                    //alert.setTitle("Notes");

                    // Sets an EditText view to get user input 
                    final EditText input = new EditText(this);
                    input.setText(table.seats[i].getPlayer().getNotes());
                    alert.setView(input);

                    alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) 
                    {
                        for(int i = 0; i < 10; i++)
                        {
                            if(view.getId() == (getResources().getIdentifier("imageButton" + (i+1), "id", "en.deco.android.livehud")))
                            {
                                table.seats[i].getPlayer().setNotes(input.getText().toString());
                            }
                        }

                    }
                    });

                    alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                      public void onClick(DialogInterface dialog, int whichButton) {
                        // Canceled.
                      }
                    });
                    alert.show();
                    return true;
                }
            }

Answer 1

我认为您需要将EditText设置为定义的宽度，或fill_parent / match_parent 。

Answer 2

you can just set a view for your negative button, like this:

alert.setNegativeButton(R.id.cancelButton, new OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                // Some action to be done when clicked..

            }
        });

and you can create a layout with a button as a root like this:

<?xml version="1.0" encoding="utf-8"?>
<Button xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/cancelButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Cancel">
</Button>

where you will set the width of the button normally to wrap_content

Edit : there is also a AlertDialog.Builder setNegativeButton (int textId, DialogInterface.OnClickListener listener)

Answer 3

setMinimumWidth() does the job. The code above it is simply to generate display pixels rather than pixels.

DisplayMetrics metrics = getResources().getDisplayMetrics();
                        float dp = 250f;
                        int pixels = (int) (metrics.density * dp + 0.5f);
                        input.setMinimumWidth(pixels);