我在这里查看了关于stackoverflow的大多数帖子,但是我无法正常工作。我希望禁用正按钮(寄存器),除非所有字段都填写完毕。

我该如何实现?

public static class UsernameDialogFragment extends DialogFragment {


    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        LayoutInflater inflater = getActivity().getLayoutInflater();


        builder.setView(inflater.inflate(R.layout.ipcamaccount, null))
                .setPositiveButton(R.string.action_register, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(final DialogInterface dialog, int id) {

                       //some other code
                        }
                    }
                });

        builder.setView(inflater.inflate(R.layout.ipcamaccount, null))
                .setNegativeButton(R.string.action_cancel, null);


        return builder.create();
    }
   }

最佳答案

我使用了另一种方法来完成此任务。希望它可以避免麻烦。我在RecyclerView适配器中使用它,因此您必须设置上下文。我不知道这是否是最优雅的方法,但是效果很好。

这是代码:

private void myDialog() {

    AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(mContext);
    dialogBuilder.setView(R.layout.ipcamaccount);

    dialogBuilder.setPositiveButton(R.string.action_register, null);
    dialogBuilder.setNegativeButton(R.string.action_cancel, null);

    final AlertDialog alertDialog = dialogBuilder.create();
    alertDialog.show();

    Button positiveButton = alertDialog.getButton(DialogInterface.BUTTON_POSITIVE);
            positiveButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            onPositiveButtonClicked(alertDialog);
        }
    });

    Button negativeButton = alertDialog.getButton(DialogInterface.BUTTON_NEGATIVE);

    negativeButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            onNegativeButtonClicked(alertDialog);
        }
    });
}

private void onPositiveButtonClicked(AlertDialog alertDialog) {

      if(some condition) {

       alertDialog.dismiss();

        Toast.makeText(mContext, "Some toast", Toast.LENGTH_LONG).show();

    }else {
        Toast.makeText(mContext, "Some other toast", Toast.LENGTH_LONG).show();
    }

}

private void onNegativeButtonClicked(AlertDialog alertDialog) {
    alertDialog.dismiss();
}

07-24 09:48
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