选中或取消选中后立即获取复选框状态

Question

I want to get the current status of checkbox as soon as it is check or unchecked. Based on that show the Toast message. Here is my code so far.

SharedPreferences getPrefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
    boolean Alarm = getPrefs.getBoolean("cbAlarm", true);
    if(Alarm == true) {
        Toast.makeText(this, "Checked", Toast.LENGTH_LONG).show();
    } else if(Alarm == false) {
        Toast.makeText(this, "UnChecked", Toast.LENGTH_LONG).show();
    }

How can I achieve this. Please help.

Edit here is my xml file

<CheckBoxPreference
    android:title="Enable/Disable Alarm"
    android:defaultValue="true"
    android:key="cbAlarm"
    android:summary="Enable or disable alarm" />

Answer 1

Just implement OnCheckedChangeListener:

CheckBox myCheckBox = (CheckBox)  findViewById(R.id.my_checkbox);

myCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener(){
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked){
        if (isChecked){
             Toast.makeText(this, "Checked", Toast.LENGTH_LONG).show();
        }else{
             Toast.makeText(this, "UnChecked", Toast.LENGTH_LONG).show();
        }  
    }
});