如何让我的复选框做一些事情时，它的检查？ [英] How do I get my CheckBox to do something when it's checked?

问题描述

例如，我有5个复选框（CB1 - CB5）。 CB1优于其他的，这意味着，如果所有的其他4检查它只能进行检查。如果我检查CB1，其他4会自动得到遏制。这是我当前的Java code（这code是onCreate方法内）：

For example, I have 5 checkboxes (cb1 - cb5). cb1 is superior to others, which means it can only be checked if all the other 4 are checked. And if I check cb1, all the other 4 should automatically get checked. This is my current java code (this code is within onCreate method):

final CheckBox cb1 = (CheckBox) findViewById(R.id.checkBox1);
final CheckBox cb2 = (CheckBox) findViewById(R.id.checkBox2);
final CheckBox cb3 = (CheckBox) findViewById(R.id.checkBox3);
final CheckBox cb4 = (CheckBox) findViewById(R.id.checkBox4);
final CheckBox cb5 = (CheckBox) findViewById(R.id.checkBox5);
cb1.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
    {
        if ( cb1.isChecked() )
        {
            cb2.isChecked();
            cb3.isChecked();
            cb4.isChecked();
            cb5.isChecked();
        }
    }
});

我是初学者所以code可能是完全错误的，或有只是一个小错误，我无法看到它。无论哪种方式，我AP preciate的帮助。另外，如果我的方式太复杂，有一个更简单的方法，让我知道吧。

I'm a complete beginner so the code may be completely wrong or there's just a small error and I can't see it. Either way, I'd appreciate the help. Also, if my way is too complicated and there's an easier way, let me know please.

推荐答案

有关复选框监听器创建一个类

Create a class for checkbox listener

public class CheckBoxListener implements OnCheckedChangeListener {

    public CheckBoxListener() {

    }


    @Override
    public void onCheckedChanged(CompoundButton view, boolean isChecked) {
        switch(view.getId()) {
        case R.id.checkBox1: 
            //do something
        case R.id.checkBox2:

        case ...
        }

    }
}

那么这个监听器设置为所有的复选框：

Then set this listener to all your checkboxes:

final CheckBox cb1 = (CheckBox) findViewById(R.id.checkBox1);
final CheckBox cb2 = (CheckBox) findViewById(R.id.checkBox2);
final CheckBox cb3 = (CheckBox) findViewById(R.id.checkBox3);
final CheckBox cb4 = (CheckBox) findViewById(R.id.checkBox4);
final CheckBox cb5 = (CheckBox) findViewById(R.id.checkBox5);
cb1.setOnCheckedChangeListener(new CheckBoxListener());
cb2.setOnCheckedChangeListener(new CheckBoxListener());
cb3.setOnCheckedChangeListener(new CheckBoxListener());
cb4.setOnCheckedChangeListener(new CheckBoxListener());

这篇关于如何让我的复选框做一些事情时，它的检查？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！