android - 检查是否选中了任何复选框

Question

我的 android 应用程序中有工作日的复选框，我想放置一个监听器来检查是否选中了这些复选框中的任何一个，但我的方法似乎很难，有没有办法将所有这些监听器聚集到一个

 sun.setOnCheckedChangeListener(new OnCheckedChangeListener()
    {
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
        { if ( isChecked )
            {
            count=count+1;
                // perform logic
            }
        else
        {
            count=count-1;
        }
        }});

    mon.setOnCheckedChangeListener(new OnCheckedChangeListener()
    {
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
        { if ( isChecked )
            {
            count=count+1;
                // perform logic
            }
        else
        {
            count=count-1;
        }
        }});
    tue.setOnCheckedChangeListener(new OnCheckedChangeListener()
    {
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
        { if ( isChecked )
            {
            count=count+1;
                // perform logic
            }
        else
        {
            count=count-1;
        }
        }});
    wed.setOnCheckedChangeListener(new OnCheckedChangeListener()
    {
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
        { if ( isChecked )
            {
            count=count+1;
                // perform logic
            }
        else
        {
            count=count-1;
        }
        }});
    thu.setOnCheckedChangeListener(new OnCheckedChangeListener()
    {
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
        { if ( isChecked )
            {
            count=count+1;
                // perform logic
            }
        else
        {
            count=count-1;
        }
        }});
    fri.setOnCheckedChangeListener(new OnCheckedChangeListener()
    {
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
        { if ( isChecked )
            {
            count=count+1;
                // perform logic
            }
        else
        {
            count=count-1;
        }
        }});
    sat.setOnCheckedChangeListener(new OnCheckedChangeListener()
    {
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
        { if ( isChecked )
            {
            count=count+1;
                // perform logic
            }
        else
        {
            count=count-1;
        }
        }});

Answer 1

您可以检查被触发的 buttonView 的 ID 并进行适当的验证，您所要做的就是将相同的 onCheckListener 分配给复选框并执行如下所示的操作:

private OnCheckedChangeListener checkedListener = new OnCheckedChangeListener() {

    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        switch(buttonView.getId()){
        case R.id.checkId1:
            //TODO: Code for checked one...
        break;
        case R.id.checkId2:
            //TODO: Code for checked two...
        break;
        }
    }
};

希望对您有所帮助!

问候!