Java 计数recyclerView中的复选框_Java_Android_Checkbox

Java 计数recyclerView中的复选框

java android checkbox

Java 计数recyclerView中的复选框,java,android,checkbox,Java,Android,Checkbox,我在recyclerView中有一个复选框列表，在该文本视图中也有 ➡ 我希望当我选中复选框时，每个复选框都应计入自己的计数，按下保存按钮后，它应将计数保存到另一个活动中，当我再次选中复选框时，它应在另一个活动中更新该计数。对于列表中的每个复选框，计数应该是单独的。更新了onBindViewHolder public void onBindViewHolder(@NonNull final StudentViewHolder holder, final int position) {

我在recyclerView中有一个复选框列表，在该文本视图中也有

➡ 我希望当我选中复选框时，每个复选框都应计入自己的计数，按下保存按钮后，它应将计数保存到另一个活动中，当我再次选中复选框时，它应在另一个活动中更新该计数。对于列表中的每个复选框，计数应该是单独的。

更新了
onBindViewHolder

 public void onBindViewHolder(@NonNull final StudentViewHolder holder, final int position) {

    final ListOfNames currentItems = mListOfNames.get(position);
    holder.studentName.setText(currentItems.getStudentName());
    holder.attendence.setText(currentItems.getTempAttendances());
    holder.mCheckedBox.setChecked(currentItems.getTemporaryChecked());

    holder.mCheckedBox.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            int attendances=0 ;
            CheckBox checkBox = (CheckBox) v;
            currentItems.setTempChecked(checkBox.isChecked());
            if (checkBox.isChecked()) {
                attendances++;
            }
            currentItems.setTempAttendances(attendances);
        }

    });

}

ModelClass

public class ListOfNames {

private String studentName;

private boolean isChecked;
private transient boolean tempChecked;
private transient String  tempAttendances;
private String attandance;


@RequiresApi(api = Build.VERSION_CODES.KITKAT)
@Override
public boolean equals(@Nullable Object obj) {
    if (obj instanceof ListOfNames) {
        ListOfNames other = (ListOfNames) obj;

        return Objects.equals(this.studentName, other.studentName);
    }
    return super.equals(obj);
}

public ListOfNames(String nStudentName) {
    studentName = nStudentName;

}

public String getStudentName() {
    return studentName;
}



public void setTempChecked(boolean checked) {
    tempChecked = checked;
}

public boolean getTemporaryChecked() {
    return tempChecked;
}

public void checkedToTempChecked() {
    tempChecked = isChecked;
}

public void tempCheckedToChecked() {
    isChecked = tempChecked;
}

public void setTempAttendances(int attendant) {
    tempAttendances = String.valueOf(attendant);
}

public String getTempAttendances() {
    return tempAttendances;
}

public void tempAttendanceToAttendance() {
    attandance = tempAttendances;
}

public void attendanceToTempAttendance() {
    tempAttendances = attandance;
}

public class ListOfNames {

private String studentName;
private boolean isChecked;
private String OverallAttendce;
private transient boolean tempChecked;
private transient int  tempAttendances;
private int attendance;

public ListOfNames(String nStudentName) {
    studentName = nStudentName;
}


          //codes...

public void setTempAttendances(int attendant) {
    tempAttendances = (attendant);
}

public int getTempAttendances() {
    return tempAttendances;
}

public void tempAttendanceToAttendance() {
    attendance = tempAttendances;
}

public void attendanceToTempAttendance() {
    tempAttendances = attendance;
}

}

首先，我想感谢您帮助我解决了这个问题。我试了这么多，终于解决了

我的菜单保存按钮

 case R.id.saveButton:

           //codes..

            for (ListOfNames current : listOfNames
            ) {

                current.tempCheckedToChecked();
                current.tempAttendanceToAttendance(); // using transient variable in my model class 
              //this method helps to setting temporary to default value.

            }
            saveData();
            saveAllData();

            Toast.makeText(this, "Saved!!", Toast.LENGTH_SHORT).show();
            return true;

}

onBindViewHolder

 public void onBindViewHolder(@NonNull final StudentViewHolder holder, final int position) {

    final ListOfNames currentItems = mListOfNames.get(position);

    holder.attendence.setText(currentItems.getTempAttendances());
    holder.mCheckedBox.setChecked(currentItems.getTemporaryChecked());

    holder.mCheckedBox.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            int tempAttendances = currentItems.getTempAttendances();

            CheckBox checkBox = (CheckBox) v;
            currentItems.setTempChecked(checkBox.isChecked());

            if (checkBox.isChecked()) {
               tempAttendances++;
            }
            currentItems.setTempAttendances(tempAttendances);
        }

    });

}

模型类

public class ListOfNames {

private String studentName;

private boolean isChecked;
private transient boolean tempChecked;
private transient String  tempAttendances;
private String attandance;


@RequiresApi(api = Build.VERSION_CODES.KITKAT)
@Override
public boolean equals(@Nullable Object obj) {
    if (obj instanceof ListOfNames) {
        ListOfNames other = (ListOfNames) obj;

        return Objects.equals(this.studentName, other.studentName);
    }
    return super.equals(obj);
}

public ListOfNames(String nStudentName) {
    studentName = nStudentName;

}

public String getStudentName() {
    return studentName;
}



public void setTempChecked(boolean checked) {
    tempChecked = checked;
}

public boolean getTemporaryChecked() {
    return tempChecked;
}

public void checkedToTempChecked() {
    tempChecked = isChecked;
}

public void tempCheckedToChecked() {
    isChecked = tempChecked;
}

public void setTempAttendances(int attendant) {
    tempAttendances = String.valueOf(attendant);
}

public String getTempAttendances() {
    return tempAttendances;
}

public void tempAttendanceToAttendance() {
    attandance = tempAttendances;
}

public void attendanceToTempAttendance() {
    tempAttendances = attandance;
}

public class ListOfNames {

private String studentName;
private boolean isChecked;
private String OverallAttendce;
private transient boolean tempChecked;
private transient int  tempAttendances;
private int attendance;

public ListOfNames(String nStudentName) {
    studentName = nStudentName;
}


          //codes...

public void setTempAttendances(int attendant) {
    tempAttendances = (attendant);
}

public int getTempAttendances() {
    return tempAttendances;
}

public void tempAttendanceToAttendance() {
    attendance = tempAttendances;
}

public void attendanceToTempAttendance() {
    tempAttendances = attendance;
}

}

onBindViewHolder

另一项活动，我正在检索学生名单的出席人数

  public void onBindViewHolder(@NonNull OverallAttendances_Adapter.thisViewHolder holder, int position) {

    ListOfNames currentItems = overallList.get(position);

    //Here I used attendance variable as of `String` type, because in my model class `tempAttendances` is of type `int`. that's why i coverted it into a String.

    String attendance = String.valueOf(currentItems.getTempAttendances());
    holder.stAttendances.setText(attendance);

}

这解决了我的问题……：）

首先我要感谢你帮我解决了这个问题。我试了这么多，终于解决了

我的菜单保存按钮

 case R.id.saveButton:

           //codes..

            for (ListOfNames current : listOfNames
            ) {

                current.tempCheckedToChecked();
                current.tempAttendanceToAttendance(); // using transient variable in my model class 
              //this method helps to setting temporary to default value.

            }
            saveData();
            saveAllData();

            Toast.makeText(this, "Saved!!", Toast.LENGTH_SHORT).show();
            return true;

}

onBindViewHolder

 public void onBindViewHolder(@NonNull final StudentViewHolder holder, final int position) {

    final ListOfNames currentItems = mListOfNames.get(position);

    holder.attendence.setText(currentItems.getTempAttendances());
    holder.mCheckedBox.setChecked(currentItems.getTemporaryChecked());

    holder.mCheckedBox.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            int tempAttendances = currentItems.getTempAttendances();

            CheckBox checkBox = (CheckBox) v;
            currentItems.setTempChecked(checkBox.isChecked());

            if (checkBox.isChecked()) {
               tempAttendances++;
            }
            currentItems.setTempAttendances(tempAttendances);
        }

    });

}

模型类

public class ListOfNames {

private String studentName;

private boolean isChecked;
private transient boolean tempChecked;
private transient String  tempAttendances;
private String attandance;


@RequiresApi(api = Build.VERSION_CODES.KITKAT)
@Override
public boolean equals(@Nullable Object obj) {
    if (obj instanceof ListOfNames) {
        ListOfNames other = (ListOfNames) obj;

        return Objects.equals(this.studentName, other.studentName);
    }
    return super.equals(obj);
}

public ListOfNames(String nStudentName) {
    studentName = nStudentName;

}

public String getStudentName() {
    return studentName;
}



public void setTempChecked(boolean checked) {
    tempChecked = checked;
}

public boolean getTemporaryChecked() {
    return tempChecked;
}

public void checkedToTempChecked() {
    tempChecked = isChecked;
}

public void tempCheckedToChecked() {
    isChecked = tempChecked;
}

public void setTempAttendances(int attendant) {
    tempAttendances = String.valueOf(attendant);
}

public String getTempAttendances() {
    return tempAttendances;
}

public void tempAttendanceToAttendance() {
    attandance = tempAttendances;
}

public void attendanceToTempAttendance() {
    tempAttendances = attandance;
}

public class ListOfNames {

private String studentName;
private boolean isChecked;
private String OverallAttendce;
private transient boolean tempChecked;
private transient int  tempAttendances;
private int attendance;

public ListOfNames(String nStudentName) {
    studentName = nStudentName;
}


          //codes...

public void setTempAttendances(int attendant) {
    tempAttendances = (attendant);
}

public int getTempAttendances() {
    return tempAttendances;
}

public void tempAttendanceToAttendance() {
    attendance = tempAttendances;
}

public void attendanceToTempAttendance() {
    tempAttendances = attendance;
}

}

onBindViewHolder

另一项活动，我正在检索学生名单的出席人数

  public void onBindViewHolder(@NonNull OverallAttendances_Adapter.thisViewHolder holder, int position) {

    ListOfNames currentItems = overallList.get(position);

    //Here I used attendance variable as of `String` type, because in my model class `tempAttendances` is of type `int`. that's why i coverted it into a String.

    String attendance = String.valueOf(currentItems.getTempAttendances());
    holder.stAttendances.setText(attendance);

}

这解决了我的问题……：）

嗨..请分享你的代码我已经用代码更新了我的问题现在你可以看到@vahab balouchzahiI对我的代码做了一些更改，但我没有得到我想要的。你可以检查一下问题是否出在你的全局计数变量上。因此，我建议您删除它，对于计数，我建议获取考勤值，然后递增/递减，最后将其设置回原来的值。您提到了保存按钮，因此我建议为考勤创建另一个临时临时变量。当然，还有设置和获取临时变量的方法@ドラゴンハートゼクモル一个疑问，正如你所说的“我建议先获取考勤值，然后递增/递减”，我应该在哪里初始化变量，以便递增/递减，然后将其设置回原位。嗨..请分享你的代码我已经用代码更新了我的问题，现在你可以看到@vahab balouchzahiI在我的代码中做了一些更改，但我并没有得到我想要的。你可以检查一下，问题在于你的全局计数变量。因此，我建议您删除它，对于计数，我建议获取考勤值，然后递增/递减，最后将其设置回原来的值。您提到了保存按钮，因此我建议为考勤创建另一个临时临时变量。当然，还有设置和获取临时变量的方法@ドラゴンハートゼクモル一个疑问，正如u所说的“我建议先获取考勤值，然后递增/递减”，我应该在哪里初始化变量，以便递增/递减，然后将其设置回原来的值。已解决！不修边幅！不修边幅！不修边幅！