Android 之复选框(CheckBox)的使用

1.调用setOnCheckedChangeListener()方法，并把 CompoundButton.OnCheckedChangeListener实例作为参数传入
2.在CompoundButton.OnCheckedChangeListener的onCheckedChanged()方法里，取得被选中复选框的实例

  /** Called when the activity is first created. */private CheckBox c1,c2 ;private Button button;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        c1 = (CheckBox) findViewById(R.id.CheckBox01);        c2 = (CheckBox) findViewById(R.id.CheckBox02);        button = (Button) findViewById(R.id.Button01);                //注册事件监听        c1.setOnCheckedChangeListener(new CheckBoxListener());        c2.setOnCheckedChangeListener(new CheckBoxListener());        button.setOnClickListener(new ButtonClickListener());            }        //定义事件    class CheckBoxListener implements OnCheckedChangeListener{@Overridepublic void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {if(isChecked){//ToastToast.makeText(CheckBoxActivity.this, buttonView.getText()+"被选择",Toast.LENGTH_SHORT ).show();}else{Toast.makeText(CheckBoxActivity.this, buttonView.getText()+"取消选择",Toast.LENGTH_SHORT ).show();}}    }        class ButtonClickListener implements OnClickListener{    String buffer = "";public void onClick(View v) {if(c1.isChecked())buffer = buffer+c1.getText();if(c2.isChecked())buffer = buffer +c2.getText();Toast.makeText(CheckBoxActivity.this, buffer+"被选择", Toast.LENGTH_SHORT).show();}    }

main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><TextView      android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="@string/hello"    />    <CheckBox android:text="金钱" android:id="@+id/CheckBox01" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox><CheckBox android:text="地位" android:id="@+id/CheckBox02" android:layout_width="wrap_content" android:layout_height="wrap_content"></CheckBox><Button android:id="@+id/Button01" android:text="确定" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button></LinearLayout>

运行效果

更多相关文章

随机推荐

Android 之 复选框(CheckBox)的使用

更多相关文章

随机推荐

Android 之复选框(CheckBox)的使用