Android开发--RadioButton和CheckBox控件的使用

在Android的开发中可能会用到RadioButton和CheckBox这两个控件，如果你对MFC开发熟悉的话，相信对这两个控件并不陌生，它们的形状也都是一样的，RadioButton是圆形单选按钮，既然是单选按钮，就需要规划好Group的概念，即在那一组中只能选择一个选项。而CheckBox是正方形的控件，即多选按钮，没有组的概念，一个控件就是一个单独的对象，互相不干扰，下面请看实现的具体例子的截图：


具体的实现代码如下：

public class MainActivity extends Activity {
	private RadioGroup radioGroup;
	private RadioButton radioButton1;
	private RadioButton radioButton2;
	private CheckBox checkBox1;
	private CheckBox checkBox2;
	private CheckBox checkBox3;
	private Button button;
	String string="";

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		radioGroup=(RadioGroup)findViewById(R.id.radiogroup);
		radioButton1=(RadioButton)findViewById(R.id.radiobutton1);
		radioButton2=(RadioButton)findViewById(R.id.radiobutton2);
		checkBox1=(CheckBox)findViewById(R.id.checkbox1);
		checkBox2=(CheckBox)findViewById(R.id.checkbox2);
		checkBox3=(CheckBox)findViewById(R.id.checkbox3);
		button=(Button)findViewById(R.id.button);
		button.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
			Toast.makeText(MainActivity.this, string, Toast.LENGTH_LONG).show();	
			}
		});
		radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
			
			@Override
			public void onCheckedChanged(RadioGroup group, int checkedId) {
				// TODO Auto-generated method stub
				switch (checkedId) {
				case R.id.radiobutton1:
					string+="Male ";
					break;
				case R.id.radiobutton2:
					string+="femal ";
				default:
					break;
				}
			}
		});
		checkBox1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
			
			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
				// TODO Auto-generated method stub
				if(isChecked){
					string+="swim ";
				}
			}
		});
        checkBox2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
			
			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
				// TODO Auto-generated method stub
				if(isChecked){
					string+="dance ";
				}
			}
		});
	
	    checkBox3.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
		
		@Override
		public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
			// TODO Auto-generated method stub
			if(isChecked){
				string+="sing ";
			}
		}
	});
}
	
	

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.activity_main, menu);
		return true;
	}

}