为AlertDialog按钮图片 [英] Images for AlertDialog buttons

问题描述

是否有可能可绘制添加到的正的负和中性的一个AlertDialog的按钮？如果是，那么如何？

Is it possible to add drawables to the positive, negative and neutral buttons of an AlertDialog? If yes, then how?

推荐答案

由于在prepareDialog 是德precated，您可以使用 onShowListener 代替。

Since onPrepareDialog is deprecated, you can use the onShowListener instead.

你也应该设置可绘制边界，否则将被放在最左边。

Also you should set the Drawable bounds or it will be placed far left.

的code以下

public class MyDialog extends DialogFragment {

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        final AlertDialog dialog = new AlertDialog.Builder(getActivity())
                .setTitle("My Dialog")
                .setNegativeButton("Cancel", new OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // TODO Auto-generated method stub
                    }
                }).setPositiveButton("Play", new OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // TODO Auto-generated method stub
                    }
                }).create();
        dialog.setOnShowListener(new OnShowListener() {

            @Override
            public void onShow(DialogInterface dialogInterface) {
                Button button = dialog.getButton(AlertDialog.BUTTON_POSITIVE);

                // if you do the following it will be left aligned, doesn't look
                // correct
                // button.setCompoundDrawablesWithIntrinsicBounds(android.R.drawable.ic_media_play,
                // 0, 0, 0);

                Drawable drawable = getActivity().getResources().getDrawable(
                        android.R.drawable.ic_media_play);

                // set the bounds to place the drawable a bit right
                drawable.setBounds((int) (drawable.getIntrinsicWidth() * 0.5),
                        0, (int) (drawable.getIntrinsicWidth() * 1.5),
                        drawable.getIntrinsicHeight());
                button.setCompoundDrawables(drawable, null, null, null);

                // could modify the placement more here if desired
                // button.setCompoundDrawablePadding();
            }
        });
        return dialog;
    }
}

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