ANDROID_MARS学习笔记_S01_005CheckBox

一、

1.checkbox_layout.xml

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical" >
     <CheckBox
         android:id="@+id/checkAllId"
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
         android:text="全选"/>
     <CheckBox
         android:id="@+id/eatId"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:background="#ff0000"
         android:textSize="50dp"
         android:text="吃饭"/>
     <CheckBox
         android:id="@+id/sleepId"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:background="#0000ff"
         android:textSize="50sp"
         android:text="睡觉"/>

 </LinearLayout>

2.MainActivity.java

 @SuppressLint("NewApi")
 public class MainActivity extends ActionBarActivity {

     private TextView textView;
     private Button button;
     int count = 0;
     //CheckBox
     private CheckBox eateBox;
     private CheckBox sleepBox;
     private CheckBox checkAll;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.checkbox_layout);

         //checkbox
         eateBox = (CheckBox) findViewById(R.id.eatId);
         sleepBox = (CheckBox) findViewById(R.id.sleepId);
         checkAll = (CheckBox) findViewById(R.id.checkAllId);
         OnBoxChickListener boxListener = new OnBoxChickListener();
 //        eateBox.setOnClickListener(boxListener);
 //        sleepBox.setOnClickListener(boxListener);
         OnBoxChangeListener changeListener = new OnBoxChangeListener();
         eateBox.setOnCheckedChangeListener(changeListener);
         sleepBox.setOnCheckedChangeListener(changeListener);
         checkAll.setOnCheckedChangeListener(changeListener);

 //        setContentView(R.layout.dpsp_layout);
 //        setContentView(R.layout.activity_main);
         //setContentView(R.layout.first_layout);

         /*TextView textView = (TextView) findViewById(R.id.textView);
         textView.setText("Hello View");
         textView.setBackgroundColor(Color.CYAN);

         button = (Button) findViewById(R.id.button);
         ButtonListener buttonListener = new ButtonListener();
         button.setOnClickListener(buttonListener);*/

     }

     class OnBoxChickListener implements OnClickListener {

         @Override
         public void onClick(View v) {
             System.out.println(v.getId());
             CheckBox box = (CheckBox) v;
             System.out.println(box.isChecked());
             System.out.println("CheckBox is clicked");
         }

     }

     class OnBoxChangeListener implements OnCheckedChangeListener {

         @Override
         public void onCheckedChanged(CompoundButton buttonView,
                 boolean isChecked) {
             if(R.id.eatId == buttonView.getId()) {
                 System.out.println("eatButton");
             } else if(R.id.sleepId == buttonView.getId()) {
                 System.out.println("sleepButton");
             } else if(R.id.checkAllId == buttonView.getId()) {
                 eateBox.setChecked(isChecked);
                 sleepBox.setChecked(isChecked);
             }
             System.out.println(isChecked ? "选中" : "取消");
         }

     }