android - 在警报对话框构建器中禁用肯定按钮

Question

我创建了一个警报对话框生成器，其中在对话框中显示了一个表单，我的肯定按钮名称是提交我希望按钮被禁用，除非表单中的所有字段都已填写。下面是我的代码，任何人都可以帮助我解决这个问题这。谢谢

        alertDialogBuilder.setPositiveButton("SAVE", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int id) {
                    nameInput1 = data_txt1.getText().toString();
                    nameInput2 = data_txt2.getText().toString();
                    nameInput3 = data_txt3.getText().toString();
                    nameInput4 = data_txt4.getText().toString();
                    nameInput5 = data_txt5.getText().toString();

                    nameInput6 = auto_txt1.getText().toString();
                    nameInput7 = auto_txt2.getText().toString();
                    nameInput8 = auto_txt3.getText().toString();
                    nameInput9 = auto_txt4.getText().toString();
                    nameInput10 = auto_txt5.getText().toString();
                    nameInput11 = auto_txt6.getText().toString();
                    nameInput12 = auto_txt7.getText().toString();
                    nameInput13 = auto_txt8.getText().toString();
                    nameInput14 = auto_txt9.getText().toString();

                    nameInput15 = data_txt6.getText().toString();
                    nameInput16 = data_txt7.getText().toString();



                        Call<Void> completeQuestionnaireCall = spreadsheetWebService.completeQuestionnaire(nameInput1, nameInput2, nameInput3, nameInput4, nameInput5, nameInput6, nameInput7, nameInput8, nameInput9, nameInput10, nameInput11, nameInput12, nameInput13, nameInput14, nameInput15, nameInput16);
                        completeQuestionnaireCall.enqueue(callCallback);
                        dialog.dismiss();

                    }



                }
            });

    alertDialogBuilder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int id) {
            dialog.cancel();

        }
    });

    alertDialogBuilder.show();
}

Answer 1

创建一个方法来检查您在 Utils 类中的所有输入，或者可以在当前类中使用它

public static boolean checkifEmptyText(String[] fields,Context context) {
    for (String currentField : fields) {
        if (currentField.getText().toString().trim().length() <= 0) {
            return false;
        }
    }
    return true;
}

现在这样检查

if(checkifEmptyText(new String[]{all your strings}),context)
{
 Button button = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
button.setEnabled(true);
}
else
{
Button button = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
button.setEnabled(false);
}