如何知道用户是否已更改切换按钮的状态？ [英] How to know whether user has changed the state of toggle button?

问题描述

我有十个切换按钮。我想点击主页按钮时节省五个这些按钮的状态。但我要救它，只有当用户已经进行了更改任何按钮的状态。有没有办法知道在状态的改变，而无需使用setOnClickListener（）？

I have ten toggle buttons. I want to save the state of five of those buttons when clicking the home button. But I want to save it only if the user has made a change to any of the buttons' state. Is there any way to know the change in states without using setOnClickListener()?

推荐答案

我也做了以下内容，它不是很好，但它的工作原理：

I have done the following, its not so nice, but it works:

ttsButton = (ToggleButton) findViewById(R.id.solution_ttsbutton);
ttsButton.setOnCheckedChangeListener(toggleButtonChangeListener);
...
// gets called, if the button state changes
final CompoundButton.OnCheckedChangeListener toggleButtonChangeListener = new CompoundButton.OnCheckedChangeListener() {
    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        // The user changed the button, do something
    }
};

和我这样做，如果我想以编程方式更改按钮，不执行变更监听器：

and I do the following, if I want to change the button programatically without executing the change listener:

ttsButton.setOnCheckedChangeListener(null);
ttsButton.setChecked(false);
ttsButton.setOnCheckedChangeListener(toggleButtonChangeListener);

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