android CheckBox的运用

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CheckBox定义一个同意协议的按钮，只要同意button才可以点击

XML代码

 <CheckBox        android:id="@+id/checkbox1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_above="@+id/button1"        android:layout_alignLeft="@+id/linearLayout1"         android:text="牛仔"        />

在onClick里面设置只要当checkbox.isChecked()为true，也就是勾选上时，button1.setEnabled(true);才可以点击
java代码

checkbox = (CheckBox) findViewById(R.id.checkbox1);checkbox.setChecked(false);button1.setEnabled(false);

checkbox.setOnClickListener(new CheckBox.OnClickListener(){@Overridepublic void onClick(View v) {// TODO Auto-generated method stubif(checkbox.isChecked()){button1.setEnabled(true);}else{button1.setEnabled(false);}}});

定义多个CheckBox来控制同一个控件

XML代码

<CheckBox        android:id="@+id/checkbox1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_above="@+id/button1"        android:layout_alignLeft="@+id/linearLayout1"         android:text="牛仔"        />    <CheckBox        android:id="@+id/checkbox2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignBaseline="@+id/checkbox3"        android:layout_alignBottom="@+id/checkbox3"        android:layout_marginLeft="27dp"        android:layout_toRightOf="@+id/checkbox3"        android:text="面包" />    <CheckBox        android:id="@+id/checkbox3"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignBaseline="@+id/checkbox1"        android:layout_alignBottom="@+id/checkbox1"        android:layout_toRightOf="@+id/button1"        android:text="黄油" />

Java代码

checkbox = (CheckBox) findViewById(R.id.checkbox1);checkbox2 = (CheckBox) findViewById(R.id.checkbox2);checkbox3 = (CheckBox) findViewById(R.id.checkbox3);//通过OnCheckedChangeListener来设置来个CheckBox对象checkbox.setOnCheckedChangeListener(checkboxlister);checkbox2.setOnCheckedChangeListener(checkboxlister);checkbox3.setOnCheckedChangeListener(checkboxlister);}private CheckBox.OnCheckedChangeListener checkboxlister = new CheckBox.OnCheckedChangeListener(){@Overridepublic void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {// TODO Auto-generated method stubString str0 = "所选：";String str1 = "牛仔";String str2 = "面包";String str3 = "黄油";//在这里进行你需要的逻辑if(checkbox.isChecked()){tview.setText(str0+str1);}if(checkbox2.isChecked()){tview.setText(str0+str2);}if(checkbox3.isChecked()){tview.setText(str0+str3);}}};

也可以使用OnTouchListener（触摸事件）来触发

checkbox.setOnTouchListener(checktouch);checkbox2.setOnTouchListener(checktouch);checkbox3.setOnTouchListener(checktouch);}private CheckBox.OnTouchListener checktouch = new CheckBox.OnTouchListener(){@Overridepublic boolean onTouch(View arg0, MotionEvent arg1) {// TODO Auto-generated method stubif(checkbox.isChecked()){tview.setText("mimi");}else{tview.setText("pipi");}return false;}};

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