关于setOnCheckedChangeListener的使用

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toggleButton

public class ToggleActivity extends Activity implements CompoundButton.OnCheckedChangeListener {    private ToggleButton tb;    private ImageView img;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.toggle_layout);        tb=(ToggleButton)findViewById(R.id.toggle);        img=(ImageView)findViewById(R.id.image);        //给tb监听        tb.setOnCheckedChangeListener(this);    }    @Override    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {        /*        buttonView代表被点击控件的本身，isChecked代表状态         */        img.setBackgroundResource(isChecked? R.drawable.deng1:R.drawable.deng2);    }}

布局

<ToggleButton        android:checked="false"        android:textOn="open"        android:textOff="close"        android:id="@+id/toggle"        android:layout_width="match_parent"        android:layout_height="wrap_content" />    <ImageView        android:id="@+id/image"        android:layout_width="match_parent"        android:layout_height="match_parent" />

CheckBox

复选框，可以有多个，而且在屏幕中选择的时候可以取消

/** * Checkbox的使用方法 */public class TestActivity extends Activity implements CompoundButton.OnCheckedChangeListener {    private CheckBox checkBox;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_test);        checkBox=(CheckBox)findViewById(R.id.basketball);        checkBox.setOnCheckedChangeListener(this);    }    @Override    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {        if(isChecked){            //获得文本内容            String text=checkBox.getText().toString();            Log.i("tag",text);        }    }}

<CheckBox        android:id="@+id/basketball"        android:checked="false"        android:text="篮球"        android:layout_width="wrap_content"        android:layout_height="wrap_content" />

RadioGroup/RadioButton

单选按钮集合和单选按钮，只能在集合中选择一个，且必须有一个

public class RadioGroupActivity extends AppCompatActivity implements RadioGroup.OnCheckedChangeListener {    private RadioGroup rg;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_radio_group);        rg.setOnCheckedChangeListener(this);    }    @Override    public void onCheckedChanged(RadioGroup group, int checkedId) {        switch (checkedId){            case R.id.rd1:                Log.i("tag","man");                break;            case R.id.rd2:                Log.i("tag","female");                break;        }    }}

<RadioGroup        android:id="@+id/rg"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="vertical">        <RadioButton            android:id="@+id/rd1"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="man"            android:checked="true"/>        <RadioButton            android:id="@+id/rd2"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="female"            android:checked="false"/>    </RadioGroup>

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