Android GUI Widget CheckBox

最新推荐文章于 2023-12-08 09:48:33 发布

原创最新推荐文章于 2023-12-08 09:48:33 发布 · 494 阅读

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#android #gui #layout #widget #checkbox

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本文详细介绍了如何在Android应用中使用CheckBox组件。通过一个具体的例子展示了如何创建CheckBox并设置监听器来响应用户的选择变化，同时提供了完整的源代码实现。

I learned the direction of the CheckBox.

CheckBox is a Multi-choice button that often used to let the user choice some information.

Now,Look at the layout file.

OK.Then,let's look the source file.

public class CheckBox extends Activity {

    private CheckBox swimBox = null;
    private CheckBox runBox = null;
    private CheckBox readBox = null;
    	
    @Override
    public void onCreate(Bundle savedInstanceState){
    	super.onCreate(savedInstanceState);
    	setContentView(R.layout.radio);
    	swimBox = (CheckBox)findViewById(R.id.swim);
    	runBox = (CheckBox)findViewById(R.id.run);
    	readBox = (CheckBox)findViewById(R.id.read);
    	
    	swimBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {	
			
			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
				// TODO Auto-generated method stub
				if(isChecked){
					System.out.println("swim is checked");
				}
				else{
					System.out.println("swim is unchecked");
				}
			}
		});
    	runBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
			
			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
				// TODO Auto-generated method stub
				if(isChecked){
					System.out.println("run is checked");
				}
				else{
					System.out.println("run is unchecked");
				}
			}
		});
    	readBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
			
			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
				// TODO Auto-generated method stub
				if(isChecked){
					System.out.println("read is checked");
				}
				else{
					System.out.println("read is unchecked");
				}
			}
		});
    }
}

The running result indicated that we success call the CheckBox.